Apparatus for auto-detecting dialing of a parallel communication device

• US 5,838,777 A
• Filed: 02/28/1997
• Issued: 11/17/1998
• Est. Priority Date: 02/28/1997
• Status: Expired due to Term

• Current Assignee: Inventec Corporation
• Original Assignee: Inventec Corporation
• Inventors: Xu, Taing, Yin, James, Chang, Jackson, Lai, Jeffrey
• Primary Examiner(s): Kuntz, Curtis A.
• Assistant Examiner(s): Barnie, Rexford N.
• Application Number:
  US08/808,379
• Time in Patent Office: 627 Days
• Field of Search: 379/142, 379/156, 379/157, 379/164, 379/171, 379/245, 379/246, 379/247, 379/257, 379/118, 379/120, 379/198, 379/93.23, 379/354, 379/93.17, 379/177
• US Class Current: 379/352
• CPC Class Codes: H04M 1/573 Line monitoring circuits for detecting caller identification
• CPC Class Codes: H04M 9/02 involving a common line for all parties

Abstract

The present invention relates to an auto-detecting dialing communication system used to make the display of caller numbers in host or communication system consist with that of an extension telephone or communication system, especially relates to an extension telephone or communication system that can also display caller numbers.

The present invention offer a device for auto-detecting dialing of a parallel communication system, which composes: (1) a FSK decoder for acquiring a dial-in number. (2) an extension telephone detecting device for detecting whether the extension telephone is off hook. (3) a memory for storing the caller telephone numbers. (4) a ring-back signal detecting device for examining whether a ring-back signal is sent back. (5) a Dual Tone Multiple Frequency (DTMF) decoder for acquiring the outgoing call number. (6) a processor for sequentially proceeding with output signals of the FSK (Frequency Shift keying) decoder, the extension telephone detecting device, the memory, the ring-back signal detecting device and the DTMF (Dual Tone Multiple Frequency)decoder according to an order.

Claims

1. Apparatus for detecting dialing of a plurality of parallel-coupled telephones in a communication system, which comprising:

FSK (Frequency Shift Keying) decoding means for acquiring a dial-in number by decoding a telephone signal;

parallel device detecting means for detecting whether said plurality of parallel-coupled telephones of said parallel communication system are off hook;

storage means for storing a plurality of telephone numbers and said dial-in number of said plurality of parallel-coupled telephones;

ring-back signal detecting means for detecting whether a ring-back signal is sent to said apparatus after sending said outgoing number, to determine if an outgoing call is successfully made by said plurality of parallel-coupled telephones;

DTMF (Dual Tone Multiple Frequency) decoding means for acquiring said outgoing number by decoding a DTMF signal sent by said parallel communication system; and

a processor for proceeding with a plurality of interior signals and sequentially receiving said plurality of interior signals according to an order, and make said electrical apparatus detect said outgoing number;

proceed with said telephone numbers and store said dial-in number in said storage means, and either set the display "unanswered" or remain the original display on said plurality of parallel-coupled telephones, after comparing said outgoing number with said plurality of telephone numbers.

2. The apparatus as claim 1, wherein said processor comprising:

procedure means for proceeding with said plurality of interior signals according to said order.

3. The apparatus as claim 1, wherein said plurality of interior signals comprises the output signals of said FSK decoding means, said parallel device detecting means, said storage means, said ring-back signal detecting means and said DTMF detecting means.

4. The apparatus as claim 1, wherein said parallel communication system comprises a host and an extension telephone.

5. The apparatus as claim 1, wherein said order comprises the steps of:

proceeding with a host corresponding procedure, if said host is off hook, said

corresponding procedure is used to;

set the display of an on-line telephone number compare said on-line telephone number with said plurality of telephone

numbers;

edit said storage means and perform the functions of the traditional communication system such as open or close a speaking circuit;

proceeding with an extension telephone procedure, if said extension telephone is off hook, said extension telephone procedure is used to acquire said outgoing number sent by said extension telephone and compare said outgoing number with said plurality of telephone numbers followed by setting the display unanswered when this call is connect; and

proceeding with an incoming call procedure, if an incoming call is ringing, said incoming call procedure is used to acquire an incoming call number and set the display of said incoming call number.

6. The apparatus as claim 5, wherein said extension telephone procedure comprises the steps of:

determining whether there is said DTMF signal;

decoding said DTMF signal and storing the result as said outgoing number in said storage means;

comparing said outgoing number with said plurality of telephone numbers after said call is connected, and setting the display of said outgoing number "answered", if there is any identical number in said plurality of telephone numbers.

7. The apparatus as claim 5, wherein said incoming call procedure comprises the steps of:

storing said incoming call number acquired by said FSK decoding means in said storage means and setting the display of said incoming call number "unanswered";

changing the display of said incoming call number "answered" if said extension telephone is off hook; and

changing the display of said incoming call number to "answered" if said host is not off hook, and proceeding with said host-corresponding procedure.

8. The apparatus as claim 1, wherein said DTMF signal is generated by said parallel communication system.

9. Apparatus for detecting dialing of a plurality of parallel-coupled telephones in a communication system, which comprising:

FSK (Frequency Shift Keying) decoding means for acquiring a dial-in number by decoding a telephone signal;

parallel device detecting means for detecting whether said plurality of parallel-coupled telephones of said parallel communication system are off hook;

storage means for depositing said plurality of telephone numbers and said dial-in number of said plurality of parallel-coupled telephones;

ring-back signal detecting means for detecting whether a ring-back signal is sent to said apparatus after sending said outgoing number, to determine if an outgoing call is successfully made by said plurality of parallel-coupled telephones;

DTMF (Dual Tone Multiple Frequency) decoding means for acquiring said outgoing number by decoding a DTMF signal sent by said parallel communication system; and

a processor for proceeding with a plurality of interior signals and sequentially receiving said plurality of interior signals according to an order, and make said electrical apparatus detect said outgoing number;

proceed with said telephone numbers and store said dial-in number in said storage means, and either set the display "unanswered" or remain the original display on said plurality of parallel-coupled telephones, after comparing said outgoing number with said plurality of telephone numbers, said processor comprises;

procedure means for proceeding with said plurality of interior signals according to said order.

10. The apparatus as claim 9, wherein said order comprising the steps of:

proceeding with a host corresponding procedure, if said host is off hook, said corresponding procedure is used to;

set the display of an on-line telephone number compare said on-line telephone number with said plurality of telephone numbers;

edit said storage means and perform the functions of the traditional communication system such as open or close a speaking circuit;

proceeding with an extension telephone procedure, if said extension telephone is off hook, said extension telephone procedure is used to acquire said outgoing number sent by said extension telephone and compare said outgoing number with said plurality of telephone numbers followed by setting the display unanswered when this call is connect; and

proceeding with an incoming call procedure, if an incoming call is ringing, said incoming call procedure is used to acquire an incoming call number and set the display of said incoming call number.

11. The apparatus as claim 9, wherein said plurality of interior signals comprising the output signals of said FSK decoding means, said parallel device detecting means, said storage means, said ring-back signal detecting means and said DTMF detecting means.

12. The apparatus as claim 9, wherein said parallel communication system

comprising a host and an extension telephone.

13. The apparatus as claim 10, wherein said extension telephone procedure comprising the steps of:

determining whether there is said DTMF signal;

decoding said DTMF signal and storing the result as said outgoing number in said storage means; and

comparing said outgoing number with said plurality of telephone numbers after said call is connected, and setting the display of said outgoing number "answered", if there is any identical number in said plurality of telephone numbers.

14. The apparatus as claim 10, wherein said incoming call procedure comprises the steps of:

storing said incoming call number acquired by said FSK decoding means in said storage means and setting the display of said incoming call number "unanswered";

changing the display of said incoming call number "answered" if said extension telephone is off hook; and

changing the display of said incoming call number to "answered" if said host is not off hook, and proceeding with said host-corresponding procedure.

15. The apparatus as claim 9, wherein said DTMF signal is generated by said parallel communication system.

16. Apparatus for detecting dialing of a plurality of parallel-coupled telephones in a communication system, which comprising:

a speaking circuit for receiving and transmitting a communication signal, said communication signal is a base-band signal or a digital signal;

FSK (Frequency Shift Keying) decoding means for acquiring a dial-in number by decoding a telephone signal;

parallel device detecting means for detecting whether said plurality of parallel-coupled telephones of said parallel communication system are off hook;

storage means for depositing said plurality of telephone numbers and said dial-in number of said plurality of parallel-coupled telephones;

ring-back signal detecting means for detecting whether a ring-back signal is sent to said apparatus after sending said outgoing number, to determine if an outgoing call is successfully made by said plurality of parallel-coupled telephones;

DTMF (Dual Tone Multiple Frequency) decoding means for acquiring said outgoing number by decoding a DTMF signal sent by said parallel communication system; and

a processor for proceeding with a plurality of interior signals and sequentially receiving said plurality of interior signals according to an order, and make said electrical apparatus detect said outgoing number;

proceed with said telephone numbers and store said dial-in number in said storage means, and either set the display "unanswered" or remain the original display on said plurality of parallel-coupled telephones, after comparing said outgoing number with said plurality of telephone numbers, said processor comprises;

procedure means for proceeding with said plurality of interior signals according to said order.

17. The apparatus as claim 16, wherein said order comprises the steps of:

proceeding with a host corresponding procedure, if said host is off hook, said corresponding procedure is used to;

set the display of an on-line telephone number compare said on-line telephone number with said plurality of telephone numbers, edit said storage means and perform the functions of the traditional

communication system such as open or close said speaking circuit;

proceeding with an extension telephone procedure, if said extension telephone is off hook, said extension telephone procedure is used to acquire said outgoing number sent by said extension telephone and compare said outgoing number with said plurality of telephone numbers followed by setting the display unanswered when this call is connected; and

proceeding with an incoming call procedure, if an incoming call is ringing, said incoming call procedure is used to acquire an incoming call number and set the display of said incoming call number.

18. The apparatus as claim 16, wherein said plurality of interior signals comprising the output signals of said FSK decoding means, said parallel device detecting means, said storage means, said ring-back signal detecting means and said DTMF detecting means.

19. The apparatus as claim 16, wherein said parallel communication system comprises a host and an extension telephone.

20. The apparatus as claim 17, wherein said extension telephone procedure comprising the steps of:

determining whether there is said DTMF signal;

decoding said DTMF signal and storing the result as said outgoing number in said storage means; and

comparing said outgoing number with said plurality of telephone numbers after said call is connected, and setting the display of said outgoing number "answered", if there is any identical number in said plurality of telephone numbers.

21. The apparatus as claim 17, wherein said incoming call procedure comprising the steps of:

storing said incoming call number acquired by said FSK decoding means in said storage means and setting the display of said incoming call number "unanswered";

changing the display of said incoming call number "answered" if said extension telephone is off hook; and

changing the display of said incoming call number to "answered" if said host is not off hook, and proceed with said host-corresponding procedure.

22. The apparatus as claim 16, wherein said display means is Liquid Crystal Display(LCD).

23. The apparatus as claim 16, wherein said DTMF signal is generated by said parallel communication system.