Text teletype writer with caller identification function

• US 5,915,000 A
• Filed: 06/30/1997
• Issued: 06/22/1999
• Est. Priority Date: 06/30/1997
• Status: Expired due to Fees

• Current Assignee: Krown Manufacturing Computty, Inc., Messagetext Licensing Inc.
• Original Assignee: Krown Manufacturing Computty, Inc.
• Inventors: Davis, Bryan, Ander, Sidney, Hale, Kevin L., Nguyen, Vinh H.
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US08/885,303
• Time in Patent Office: 722 Days
• Field of Search: 379/52, 379/142, 379/110.01, 379/387, 379/354-357, 379/93.08, 379/93.09, 379/93.17, 379/93.18, 379/93.23, 379/93.37
• US Class Current: 379/52
• CPC Class Codes: H04M 1/57 Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set at the operator set in a manual exchange H04M5/20
• CPC Class Codes: H04M 1/573 Line monitoring circuits for detecting caller identification
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision

Abstract

A text teletype writer (TTY) is provided for receiving, processing, and displaying caller identification information in a visual display. A call back function is included to allow for automatic DTMF dialing of a telephone number associated with a previously received call.

Claims

1. A telecommunication device for the hearing impaired for connection to a telephone network for receipt of incoming calls from a call-originator, and for placement of outgoing calls, comprising:

a. a keyboard for entering outgoing messages;

b. an acoustic coupling member for acoustically coupling with a telephone handset;

c. a signal generator for generating communication tones through said acoustic coupling member corresponding to outgoing messages;

d. a signal receiver for receiving tones through said acoustic coupling member corresponding to incoming messages;

e. a visual display for displaying said incoming and outgoing messages;

f. a microprocessor operating in accordance with program instructions for;

1. receiving input from said keyboard;

2. controlling operation of said signal generator;

3. receiving incoming messages from said signal receiver; and

4. displaying incoming and outgoing messages;

g. a line coupling member for electrically coupling said telecommunication device to a telephone line and for receiving a TIP signal and a RING signal;

h. a telephone line interface for signal processing of said TIP and RING signals;

i. a caller identification decoder for;

1. receiving processed TIP and RING signals from said telephone line interface;

2. detecting at least one RING signal;

3. receiving automatically coded caller identification signals from said telephone network between particular ring signals;

4. decoding from said coded caller identification signal at least one of (1) a telephone number associated with telephone service of said call-originator, and (2) identifying information associated with telephone service of said call originator; and

5. passing decoded caller identification information to said microprocessor; and

j. wherein said decoded caller identification information is processed by said microprocessor and displayed on said visual display.

2. A telephone communication device according to claim 1 wherein said communication tones comprise Baudot tones.

3. A telephone communication device according to claim 1 wherein said telephone line interface processes said TIP and RING signals by eliminating dc components and rectifying said TIP and RING signals.

4. A telephone communication device according to claim 1 wherein said caller identification decoder commences decoding operation after detection of a first RING signal.

5. A telephone communication device according to claim 1 wherein:

said caller identification decoder passes said caller identification information to said microprocessor in serial ASCII format; and

said microprocessor converts said serial ASCII format to a parallel ASCII format for use by said visual display.

6. A telephone communication device according to claim 1, further comprising:

k. a DTMF generator;

l. a "call back" computer instruction module for activating said DTMF generator to initiate telephone communication with a communicant identified by said caller identification information displayed in said visual display.

7. A telecommunication device according to claim 6, further comprising:

m. a database for recording caller identification information associated with incoming calls; and

n. means for selecting items in said database for use by said call back computer instruction module.

8. A telecommunication device for the hearing impaired for connection to a telephone network for receipt of incoming calls from a call-originator, and for placement of outgoing calls, comprising:

a. a keyboard for entering textual messages;

b. an acoustic coupling member for acoustically coupling with a telephone handset;

c. a signal generator for generating at least one of (1) ASCII characters, and (2) Baudot tones through said acoustic coupling member;

d. a signal receiver for receiving at least of (1) ASCII characters and (2) Baudot tones through said acoustic coupling;

e. a visual display for displaying incoming and outgoing messages;

f. a microprocessor operating in accordance with program instructions for;

1. receiving input from said keyboard;

2. controlling operation of said signal generator;

3. receiving incoming messages from said signal receiver; and

4. displaying incoming and outgoing messages;

g. a line coupling member for electrically coupling said telecommunication device to a telephone line and for receiving a TIP signal and a RING signal;

h. a telephone line interface for signal processing of said TIP and RING signals;

i. a caller identification decoder for;

1. receiving processed TIP and RING signals from said telephone line interface;

2. detecting a first RING signal;

3. receiving automatically coded caller identification signals after said first RING signal from said telephone network between particular ring signals;

4. decoding said from coded caller identification signal at least one of (1) a telephone number associated with telephone service of said call-originator, and (2) identifying information associated with telephone service of said call originator; and

5. passing decoded caller identification information to said microprocessor; and

j. wherein said decoded caller identification information is processed by said microprocessor and displayed on said visual display.

9. A telephone communication device according to claim 8 wherein:

said caller identification decoder passes said coder caller identification information to said microprocessor in serial ASCII format; and

said microprocessor converts said serial ASCII format to a parallel ASCII format for use by said visual display.

10. A telephone communication device according to claim 8, further comprising:

k. a DTMF generator;

l. a "call back" computer instruction module for activating said DTMF generator to initiate telephone communication with a communicant identified by said caller identification information in said visual display.

11. A telecommunication device according to claim 10, further comprising:

m. a database for recording caller identification information associated wtih incoming calls; and

n. means for selecting items in said database for use by said call back computer instruction module.

12. A telecommunication device for the deaf comprising for connection to a telephone network for receipt of incoming calls from a call-originator, and for placement of outgoing calls:

a. a keyboard;

b. a visually readable display;

c. a microprocessor operating in accordance with a program code and connected to accept input data characters from the keyboard and to present data characters on the display;

d. an analog input circuit adapted to being connected to a telephone line so as to be responsive to the reception of Baudot tones over the telephone line and also connected to the microprocessor so as to provide a digital input to the microprocessor of the data received over the telephone line;

e. an analog output line adapted to being connected to the telephone line so as to be capable of presenting Baudot tones over the telephone line and also connected to receive data from the microprocessor and transmit Baudot tones encoding such data over the telephone line; and

f. a line coupling member for electrically coupling said telecommunication device to a telephone line and for receiving a TIP signal and a RING signal;

g. a telephone line interface for interface for signal processing of said TIP and RING signals;

h. a caller identification decoder for;

1. receiving processed TIP and RING signals from said telephone line interface;

2. detecting a first RING signal;

3. receiving automatically coded caller identification signals after said first RING signal from said telephone network between particular ring signals;

4. decoding from said coded caller identification signal at least one of (1) a telephone number associated with telephone service of said call-originator, and (2) identifying information associated with telephone service of said call originator; and

5. passing decoded caller identification information to said miniprocessor.

i. a memory device connected to the microprocessor containing the program code for operation of the microprocessor to control operation of the telecommunications device to generally (i) receive data entered from the keyboard, (ii) present entered data from the keyboard on the analog output line;

(iii) receive input data from the analog input line;

(iv) display data from both the keyboard and the input analog line on the display; and

(v) display decoded caller identification information.

13. A telephone communication device according to claim 12 wherein:

said caller identification decoder passes said coder identification information to said microprocessor in serial ASCII format; and

said microprocessor converts said serial ASCII format to a parallel ASCII format for use by said visual display.

14. A telephone communication device according to claim 12, further comprising:

j. a DTMF generator;

k. a "call back" computer instruction module for activating said DTMF generator to initiate telephone communication with a communicant identified by caller identification displayed in said visual display.

15. A telecommunication device according to claim 14, further comprising:

l. a database for recording caller identification information association with incoming calls; and

m. means for selecting items in said database for use by said call back computer instruction module.