Microcomputer-controlled television/telephone system and method therefore

• US 4,356,509 A
• Filed: 03/12/1981
• Issued: 10/26/1982
• Est. Priority Date: 03/12/1981
• Status: Expired due to Term

• Current Assignee: Zenith Radio Corporation 100O Milwaukee Avenue Glenview ILL 60025 A Corporation of
• Original Assignee: Zenith Radio Corporation
• Inventors: Zato, Thomas J., Snopko, Paul A., Templin, Frank C., Skerlos, Peter C.
• Primary Examiner(s): BRITTON, HOWARD W
• Application Number:
  US06/243,010
• Time in Patent Office: 593 Days
• Field of Search: 358/85, 358/191.1, 358/194.1, 358/147, 179/2 TV, 179/1 HF, 455/603
• US Class Current: 348/552
• CPC Class Codes: H04M 1/2725 using electronic memories
• CPC Class Codes: H04M 1/56 Arrangements for indicating or recording the called number at the calling subscriber's set

Abstract

A television receiver incorporating telephone interface circuitry permitting the viewer to not only answer incoming calls but also place outgoing calls by means of the television receiver is disclosed. An infrared link is used for remote control telephone answering and dial-out with a tuner-integrated microcomputer used to drive a character generator permitting the number dialed to be displayed on the television receiver'"'"'s video display and to be provided to a standard telephone line. An automatic re-dial feature is provided by means of the microcomputer'"'"'s memory whereby the last phone number dialed by the remote transmitter may be stored in memory, recalled by means of a single button selection, presented on the on-screen display and automatically dialed. The microcomputer-driven character generator also controls telephone interface circuitry and switching between television and telephone modes while providing for a privacy mode in which a television-mounted microphone is turned off in selectively muting audio output to the other telephone subscriber.

Claims

1. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

remotely located control means having a plurality of selectable keys for generating binary signals representing channel numbers and alpha-numeric telephone number characters;

mode selection means coupled to said remote control means for generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

microcomputer means coupled to said remotely located control means and said mode selection means for receiving said binary signals and said modulated signal and for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received; and

switching circuit means coupled to said microcomputer means for receiving said telephone switch signal and said digital dialing words and to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

3. A telephone-television receiver system as in claim 1 further comprising audio switch control means coupled to said remotely located control means for providing an audio control signal to said microcomputer means for recalling a privacy signal from said memory matrix and providing said privacy signal to said switching circuit means for selectively electrically decoupling said microphone means from said television receiver in the telephone mode of operation.

4. A telephone-television receiver system as in claim 3 wherein said microcomputer means provides a timed signal to said audio amplifier-speaker means by means of said switching circuit means for selectively muting said audio amplifier-speaker means during telephone number dialing thus preventing the transmission by said audio amplifier-speaker means of break-and-make mechanical dialing sounds.

2. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

remotely located control means having a plurality of selectable keys for generating binary signals representing channel numbers and alpha-numeric telephone number characters;

mode selection means coupled to said remote control means for generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

microcomputer means coupled to said remotely located control means and said mode selection means for receiving said binary signals and said modulated signal and for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received;

character generator/control means coupled to said microcomputer means for receiving said telephone switch signal and said digital dialing words and coupled to said video display for providing said digital dialing words thereto for the presentation of the dialed alpha-numeric telephone number characters on said video display; and

switching circuit means coupled to said character generator/control means for receiving said telephone switch signal and said digital dialing words and to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

5. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

on-set control means located on said television receiver having a plurality of selectable keys for generating binary signals representing channel numbers and alpha-numeric telephone number characters;

mode selection means coupled to said on-set control means for generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

microcomputer means coupled to said on-set control means and said mode selection means for receiving said binary signals and said modulated signal and for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received; and

switching circuit means coupled to said microcomputer means for receiving said telephone switch signal and said digital dialing words and to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

6. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

on-set control means located on said television receiver having a plurality of selectable keys for generating binary signals representing channel numbers and alpha-numeric telephone number characters;

mode selection means coupled to said on-set control means for generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

microcomputer means coupled to said on-set control means and said mode selection means for receiving said binary signals and said modulated signal and for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received;

character generator/control means coupled to said microcomputer means for receiving said telephone switch signal and said digital dialing words and coupled to said video display for providing said digital dialing words thereto for the presentation of the dialed alpha-numeric telephone number characters on said video display; and

switching circuit means coupled to said character generator/control means for receiving said telephone switch signal and said digital dialing words and to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

7. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of a remotely located keyboard means having a plurality of selectable keys for generating binary signals corresponding to television channel numbers, said television receiver including means for receiving and providing said binary signals to said microcomputer-controlled tuner, a video display, and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

mode selection means coupled to said remote keyboard means for generating and transmitting to said binary signal receiving means in said television receiver a predetermined pulse pattern over a predetermined time period, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting means coupled to said binary signal receiving means for counting the number of binary signals received from said remote keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

program memory means including a plurality of previously stored sequences of binary instructions for controlling said counting means;

central processing means coupled to said program memory means for recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

clock pulse generating means coupled to said counting means and said central processing means for providing clock pulses thereto for establishing said predetermined time intervals;

data memory means connected to said central processing means for temporarily storing said coded binary signals received during said repetitive predetermined time intervals and for storing a plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

latch means coupled to said central processing means for receiving input signals in response to said comparisons and for providing first output signals in response thereto;

character generator/control means coupled to said latch means for receiving said first output signals and for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon; and

switching circuit means connected to said character generator/control means and activated by said third output signals and connected to said audio signal processing circuitry, said audio amplifier-speaker means and said microphone means for selectively coupling said character generator/control means thereto and coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver.

8. A telephone-television receiver system as in claim 7 wherein said binary signals generated and transmitted by said remote keyboard means are in the infrared frequency spectrum.

9. A telephone-television receiver system as in claim 8 wherein said binary signals are pulse code modulated.

10. A telephone-television receiver system as in claim 7 wherein the last dialed telephone number is read from said data memory means by said central processing means and provided to said telephone by the activation of said telephone mode selection means followed by engagement of selectable control means within a predetermined time interval thereafter.

11. A telephone-television receiver system as in claim 10 wherein said predetermined time interval is five seconds.

12. A telephone-television receiver system as in claim 7 further comprising audio switch control means coupled to said remote keyboard means for providing a switch control signal to said central processing means in recalling a privacy signal from said data memory means and providing said privacy signal to said switching circuit means for selectively electrically decoupling said microphone means from said television receiver in the telephone mode of operation.

13. A telephone-television receiver system as in claim 7 wherein said clock pulse generating means provides a timed signal to said audio amplifier-speaker means by means of said switching circuit means for selectively muting said audio amplifier-speaker means during telephone number dialing thus preventing the transmission by said audio amplifier-speaker means of break-and-make mechanical dialing sounds.

14. A telephone-television receiver system as in claim 7 wherein said clock pulse generating means provides a delay signal of a predetermined duration to said central processing means such that said central processing means reads data from said data memory means at a predetermined rate resulting in a predetermined time interval between individual digits being provided to said switching circuit means making said telephone-television receiver system compatible with a break-and-make mechanical dialing system.

15. A telephone-television receiver system as in claim 14 wherein said predetermined time interval between individual digits is approximately 600 milliseconds.

16. A telephone-television receiver system as in claim 7 wherein said central processing unit includes:

decoder means coupled to said program memory means for receiving and converting said sequences of binary quantities stored therein to program instructions;

accumulator means coupled to said counting means and to said decoder means for receiving program instructions and binary signals representing received pulse patterns, respectively, therefrom and for storing said program instructions and said received pulse patterns; and

ALU means coupled to said decoder means, said data memory means and to said accumulator means for recalling the pulse patterns from said accumulator means and for comparing said pulse patterns with coded binary signals recalled from said data memory means in accordance with program instructions provided by said decoder means.

17. A telephone-television receiver system as in claim 16 further comprising program counter means connected to said program memory means for sequentially accessing predetermined binary instructions in controlling said counting means, said accumulator means and said ALU means.

18. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of an on-set keyboard means having a plurality of selectable keys for generating binary signals corresponding to television channel numbers, said television receiver including means for providing said binary signals to said microcomputer-controlled tuner, a video display, and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

mode selection means coupled to said on-set keyboard means for generating a predetermined pulse pattern over a predetermined time period, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting means coupled to said mode selection means for counting the number of binary signals received from said on-set keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

program memory means including a plurality of previously stored sequences of binary instructions for controlling said counting means;

central processing means coupled to said program memory means for recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

clock pulse generating means coupled to said counting means and said central processing means for providing clock pulses thereto for establishing said predetermined time intervals;

data memory means connected to said central processing means for temporarily storing said coded binary signals received during said repetitive predetermined time intervals and for storing a plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

latch means coupled to said central processing means for receiving input signals in response to said comparisons and for providing first output signals in response thereto;

character generator/control means coupled to said latch means for receiving said first output signals and for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon; and

switching circuit means connected to said character generator/control means and activated by said third output signals and connected to said audio signal processing circuitry, said audio amplifier-speaker means and said microphone means for selectively coupling said character generator/control means thereto and for coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver.

19. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of a remotely located keyboard means having a plurality of selectable keys for generating and transmitting pulse code modulated binary signals in the infrared frequency spectrum corresponding to television channel numbers, said television receiver including means for receiving and providing said binary signals to said microcomputer-controlled tuner, a video display, and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

mode selection means coupled to said remote keyboard means for generating and transmitting to said binary signal receiving means in said television receiver a predetermined pulse pattern over a predetermined time period, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting means coupled to said binary signal receiving means for counting the number of binary signals received from said remote keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

program memory means including a plurality of previously stored sequences of binary instructions for controlling said counting means;

central processing means coupled to said program memory means for recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

clock pulse generating means coupled to said counting means and said central processing means for providing clock pulses thereto for establishing said predetermined time intervals and coupled to said audio amplifier-speaker means for providing a timed signal thereto by means of said switching circuit means for selectively muting said audio amplifier-speaker means during telephone number dialing thus preventing the transmission by said audio amplifier-speaker means of make-and-break mechanical dialing sounds;

data memory means connected to said central processing means for temporarily storing said coded binary signals received during said repetitive predetermined time intervals and for storing a plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

latch means coupled to said central processing means for receiving input signals in response to said comparisons and for providing first output signals in response thereto;

character generator/control means coupled to said latch means for receiving said first output signals and for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon;

switching circuit means connected to said character generator/control means and activated by said third output signals and connected to said audio signal processing circuitry, said audio amplifier-speaker means and said microphone means for selectively coupling said character generator/control means thereto and for coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver;

audio switch control means coupled to said remote keyboard means for providing a switch control signal to said central processing means in recalling a privacy signal from said data memory means and providing said privacy signal to said switching circuit means for selectively electrically decoupling said microphone means from said television receiver in the telephone mode of operation; and

selectable control means coupled to said central processing means for reading out of said data memory means the previously dialed telephone number and providing said telephone number to said telephone following the activation of said mode selection means to the telephone mode and the engagement of said selectable control means within a predetermined time interval thereafter.

20. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display, character display means for displaying selected channel number, and audio signal processing circuitry including audio amplifier-speaker means, a system for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

22. A telephone-television receiver as in claim 20 wherein said character display means is comprised of light emitting diodes.

27. A method as in claim 22 wherein said binary signals representing channel numbers and alpha-numeric telephone number characters are generated by means of a remotely located keyboard control means.

28. A method as in claim 22 wherein said binary signals representing channel numbers and alpha-numeric telephone number characters are generated by means of an on-set keyboard control means.

30. A method as in claim 28 wherein said character display means is comprised of light emitting diodes.

21. remotely located control means having a plurality of selectable keys for generating binary signals representing channel numbers and alpha-numeric telephone number characters;

mode selection means coupled to said remote control means for generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

microcomputer means coupled to said remotely located control means and said mode selection means for receiving said binary signals and said modulated signal and for generating a plurality of binary addresses for outputting said binary signals representing said alpha-numeric telephone number characters to said character display means for display thereon and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received; and

switching circuit means coupled to said microcomputer means for receiving said telephone switch signal and said digital dialing words and to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

23. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating binary signals representing channel numbers and alpha-numeric telephone number characters;

generating a modulated signal representing the telephone mode of operation of said television receiver;

providing said binary signals and said modulated signal to microcomputer means having a memory matrix for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received; and

providing said telephone switch signal and said digital dialing words to switching circuit means coupled to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

25. A method as in claim 23 further comprising providing an audio control signal to said microcomputer means for recalling a privacy signal from said memory matrix and providing said privacy signal to said switching circuit means for selectively electrically decoupling said microphone means from said television receiver in the telephone mode of operation.

24. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating binary signals representing channel numbers and alpha-numeric telephone number characters;

generating a modulated signal representing the telephone mode of operation of said television receiver;

providing said binary signals and said modulated signal to microcomputer means having a memory matrix for generating a plurality of binary addresses for outputting a plurality of digital dialing words corresponding to alpha-numeric telephone number characters and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received;

providing said telephone switch signal and said digital dialing words to character generator/control means coupled to said video display for providing said digital dialing words thereto for the presentation of the dialed alpha-numeric telephone number characters on said video display; and

providing said telephone switch signal and said digital dialing words to switching circuit means coupled to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

26. A method as in claim 24 wherein said microcomputer means provides a timed signal to said audio amplifier-speaker means by means of said switching circuit means for selectively muting said audio amplifier-speaker means during telephone number dialing thus preventing the transmission by said audio amplifier-speaker means of break-and-make mechanical dialing sounds.

29. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel, said television receiver including a video display, character display means for displaying selected channel number, and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating binary signals representing channel numbers and alpha-numeric telephone number characters;

generating a modulated signal, said modulated signal representing the telephone mode of operation of said television receiver;

providing said binary signals and said modulated signal to microcomputer means having a memory matrix for generating a plurality of binary addresses for outputting said binary signals representing said alpha-numeric telephone number characters to said character display means for display thereon and a telephone switch signal, respectively, or for generating a plurality of binary addresses for outputting a plurality of digital tune words corresponding to a selected channel number from a memory matrix containing a plurality of said digital dialing and digital tune words to said tuner in tuning from a currently tuned channel to a desired channel when said modulated signal is not received; and

providing said telephone switch signal and said digital dialing words and to switching circuit means coupled to said audio amplifier-speaker means, said microphone means and said telephone for providing said digital dialing words to said telephone following the receipt of said telephone switch signal for initiating a telephone call and coupled to said television receiver audio signal processing circuitry for answering a telephone call and for carrying on audio communication on said telephone by means of said television receiver.

31. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of remotely located keyboard means having a plurality of selectable keys for generating binary signals corresponding to television channel numbers, said television receiver including means for receiving and providing said binary signals to said microcomputer-controlled tuner, a video display and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating and transmitting to said binary signal receiving means in said television receiver a predetermined pulse pattern over a predetermined time period, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting the number of binary signals received from said remote keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

controlling said counting means by means of program memory means including a plurality of previously stored sequences of binary instructions;

recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

providing clock pulses to said counting means and said central processing means for establishing said predetermined time intervals;

storing said coded binary signals received during said repetitive predetermined time intervals and said plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters in data memory means, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

providing input signals from said central processing means to latch means in response to said comparisons and generating first output signals from said latch means in response thereto;

providing said first output signals to character generator/control means for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon; and

providing said third output signals to switching circuit means coupled to said audio signal processing circuitry, said audio amplifier-speaker means and for selectively coupling said character generator/control means thereto and coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver.

32. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of an on-set keyboard means having a plurality of selectable keys for generating binary signals corresponding to television channel numbers, said television receiver including means for providing said binary signals to said microcomputer-controlled tuner, a video display, and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating a predetermined pulse pattern over a predetermined time period, by means of said on-set keyboard means, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting the number of binary signals received from said on-set keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

controlling said counting means by means of program memory means including a plurality of previously stored sequences of binary instructions;

recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

providing clock pulses to said counting means and said central processing means for establishing said predetermined time intervals;

storing said coded binary signals received during said repetitive predetermined time intervals and said plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters in data memory means, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

providing input signals from said central processing means to latch means in response to said comparisons and generating first output signals from said latch means in response thereto;

providing said first output signals to character generator/control means for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon; and

providing said third output signals to switching circuit means coupled to said audio signal processing circuitry, said audio amplifier-speaker means and said microphone means for selectively coupling said character generator/control means thereto and coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver.

33. In a television receiver for receiving a transmitted composite video signal having a video component and an audio component and having a microcomputer-controlled tuner for selectively tuning said television receiver from a currently tuned channel to a desired channel by means of a remotely located keyboard means having a plurality of selectable keys for generating and transmitting pulse code modulated binary signals in the infrared frequency spectrum corresponding to television channel numbers, said television receiver including means for receiving and providing said binary signals to said microcomputer-controlled tuner, a video display, and audio signal processing circuitry including audio amplifier-speaker means, a method for selectively operating said television receiver in a television mode wherein said received video signals are presented on said video display and said received audio signals are provided to said audio signal processing circuitry and said audio amplifier-speaker means, and in a telephone mode wherein audio communication by means of a telephone coupled to said television receiver may be initiated or responded to with the audio signals transmitted by said telephone coupled to said audio signal processing circuitry and audio amplifier-speaker means and to microphone means for sensing acoustic signals during a telephone conversation comprising:

generating and transmitting to said binary signal receiving means in said television receiver by means of said remotely located keyboard means a predetermined pulse pattern over a predetermined time period, said predetermined pulse pattern representing the telephone mode of operation of said television receiver;

counting the number of binary signals received from said remote keyboard means following receipt of the first pulse in said telephone mode pulse pattern and the number of binary signals representing alpha-numeric telephone number characters subsequently received;

controlling said counting means by means of program memory means including a plurality of previously stored sequences of binary instructions for controlling said counting means;

recalling from said program memory means a predetermined sequence of stored binary signals representing said predetermined time interval and coupled to said counting means for activating said counting means for a predetermined time interval and for receiving from said counting means the number of binary signals representing the telephone mode of operation of said television receiver and alpha-numeric telephone number characters subsequently received during repetitive predetermined time intervals;

providing clock pulses to said counting means and said central processing means for establishing said predetermined time intervals;

storing said coded binary signals received during said repetitive predetermined time intervals and for storing said plurality of binary signal codes representing said telephone mode of operation and subsequently dialed alpha-numeric telephone number characters, in data memory means, said data memory means providing said received coded binary signals and said stored coded binary signals to said central processing means for comparison therein;

providing input signals from said central processing means to latch means in response to said comparisons and generating first output signals from said latch means in response thereto;

providing said first output signals to character generator/control means for producing second and third output signals, said second output signals being provided to said video display for presentation of the dialed alpha-numeric telephone number characters thereon; and

providing said third output signals to switching circuit means coupled to said audio signal processing circuitry, said audio amplifier-speaker means and said microphone means for selectively coupling said character generator/control means thereto and for coupling said television receiver audio signal processing circuitry, said audio amplifier-speaker means and said microphone means to said telephone for answering or initiating a telephone call, respectively, and for audio communication on said telephone by means of said television receiver;

providing a switch control signal to said central processing means in recalling a privacy signal from said data memory means and providing said privacy signal to said switching circuit means for selectively electrically decoupling said microphone means from said television receiver in the telephone mode of operation; and

reading out of said data memory means the previously dialed telephone number and providing said telephone number to said telephone following the activation of said mode selection means to the telephone mode and the engagement of said selectable control means within a predetermined time interval thereafter.