Concurrent voice and data communication

• US 5,854,830 A
• Filed: 12/04/1997
• Issued: 12/29/1998
• Est. Priority Date: 06/03/1994
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Kenmochi, Toshio
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US08/985,239
• Time in Patent Office: 390 Days
• Field of Search: 379/100.01, 379/100.12, 379/100.15-100.17, 379/93.01, 379/93.05-93.11, 358/425, 358/434-436, 358/438-440, 358/442, 358/468, 348/14-19
• US Class Current: 379/100.15
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• CPC Class Codes: H04N 1/32704 Establishing a communication with one of a facsimile and another telecommunication apparatus sharing a single line
• CPC Class Codes: H04N 1/32708 Telephone
• CPC Class Codes: H04N 1/32728 an off-hook condition

Abstract

A communication apparatus is provided which is capable of facsimile communication, voice communication and concurrent voice/facsimile communication. In one version, the apparatus has first and second connecting units for connection to a voice communication terminal (such as a conventional telephone) and a data communication terminal (a facsimile apparatus or the like), respectively. A selector selects between those two connecting units. An analog signal from either the voice communication terminal or the data communication terminal is binarized, the two streams of data (if the apparatus is in concurrent transmission mode) are mixed, and the resulting data stream is converted to an analog signal for transmission. Similarly, an incoming analog signal, if received in the concurrent communication mode, is separated into binary voice and binary non-voice data, which are then separately processed and output as appropriate. Also, it is possible to switch among voice, data, and concurrent voice/data modes.

Claims

1. A communication apparatus connectable to a communication line, comprising:

first communication means for performing voice communication via the communication line;

second communication means for performing data communication via the communication line;

third communication means for concurrently performing the voice communication and the data communication via the communication line;

designation means for designating any one of a voice communication mode for performing the voice communication, a data communication mode for performing the data communication, and a concurrent communication mode for concurrently performing the voice communication and the data communication; and

switch means for connecting the communication line to said first communication means, said second communication means or said third communication means in accordance with the mode designated by said designation means.

2. A communication apparatus according to claim 1, further comprising instruction means for arbitrarily instructing said designation means to designate a mode.

3. A communication apparatus according to claim 1, wherein said switch means automatically performs its connection.

4. A communication apparatus according to claim 1, wherein said switch means connects the communication line to said first communication means or said second communication means, respectively, when said voice communication mode or said data communication mode is designated while said third communication means is connected to the communication line.

5. A communication apparatus according to claim 1, wherein said switch means connects the communication line to said third communication means when said concurrent communication mode is designated while the communication line is connected to said first communication means or said second communication means.

6. A communication apparatus according to claim 1, wherein the first communication means and the second communication means perform communication of an analog signal.

7. A communication apparatus according to claim 6, wherein the third communication means binarizes and multiplexes the analog signal.

8. A communication apparatus according to claim 6, wherein the third communication means performs said concurrent communication through a time division multiplexing communication.

9. A communication apparatus according to claim 1, wherein said second communication means performs a facsimile communication.

10. A communication apparatus according to claim 1, further comprising first connecting means connected to an external voice communication apparatus,

wherein said first communication means performs the voice communication of said external voice communication apparatus connected to said first connecting means.

11. A communication apparatus according to claim 1, further comprising second connecting means connected to an external data communication apparatus,

wherein said second communication means performs the data communication of said external data communication apparatus connected to said second connecting means.

12. A communication apparatus according to claim 1, wherein said communication apparatus is connected to an external voice communication apparatus and an external data communication apparatus, and

said third communication means concurrently performs the voice communication of said external voice communication apparatus and the data communication of said external data communication apparatus.

13. A communication apparatus according to claim 1, further comprising determining means for determining whether the concurrent communication by said third communication means is possible when said concurrent communication mode is set by said setting means,

wherein said setting means sets said voice communication mode or said data communication mode when said determining means determines that the concurrent communication is not possible.

14. A communication apparatus connectable to a communication line, comprising:

first communication means for performing voice communication via the communication line;

second communication means for performing data communication via the communication line;

third communication means for performing the voice communication and the data communication as concurrent communication via the communication line;

first switch means for selectively connecting the communication line to said first communication means;

second switch means for selectively connecting the communication line to said second communication means;

third switch means for selectively connecting the communication line to said third communication means; and

control means for performing the voice communication by said first communication means, the data communication by said second communication or the concurrent communication by said third communication means in accordance with switching operations of said first switch means, said second switch means and said third switch means.

15. A communication apparatus according to claim 14, further comprising instruction means for arbitrarily instructing the switching operations of said first switch means, said second switch means and said third switch means.

16. A communication apparatus according to claim 14, wherein the switching operations of said first switch means, said second switch means or said third switch means are automatically performed.

17. A communication apparatus according to claim 14, wherein when a predetermined signal is input while said third communication means is connected to the communication line by said third switch means, said first switch means or said second switch means connects said first communication means or said second communication means to the communication line in response to the predetermined signal.

18. A communication apparatus according to claim 14, wherein said third switch means connects said third communication means to the communication line when a predetermined signal is input while said first communication means is connected to the communication line by said first switch means or said second communication means is connected to the communication line by said second switch means.

19. A communication method of a communication apparatus connectable to a communication line, the apparatus comprising first communication means for performing voice communication, second communication means for performing data communication, and third communication means for performing the voice communication and the data communication as concurrent communication, said method comprising the steps of:

setting a voice communication mode for performing the voice communication, a data communication mode for performing the data communication, or a concurrent communication mode for concurrently performing the voice communication and the data communication; and

controlling switch means for connecting the communication line to the first communication means, the second communication means or the third communication means, in accordance with the mode set in said setting step.

20. A communication method according to claim 19, further comprising the step of arbitrarily instructing said controlling step to set a mode.

21. A communication method according to claim 19, wherein said controlling step is automatically performed.

22. A communication method according to claim 19, wherein said controlling step controls the communication line so as to be connected to the first communication means or the second communication means by the switch means when said voice communication mode or said data communication mode is set in said setting step while the communication line is connected to the third communication means by the switch means.

23. A communication method according to claim 19, wherein said controlling step controls the communication line so as to be connected to the third communication means by the switch means when said concurrent communication mode is set in said setting step while the communication line is connected to the first communication means or the second communication means by the switch means.

24. A communication method according to claim 19, wherein said first communication means and said second communication means perform communication of an analog signal.

25. A communication apparatus according to claim 24, wherein said third communication means binarizes and multiplexes the analog signal.

26. A communication apparatus according to claim 24, wherein said third communication means performs said concurrent communication through a time division multiplexing communication.

27. A communication apparatus according to claim 19, wherein said second communication means performs a facsimile communication.

28. A communication method according to claim 19, wherein said communication apparatus is connected to an external voice communication apparatus, and

said first communication means performs the voice communication of said external voice communication apparatus.

29. A communication method according to claim 19, wherein said communication apparatus is connected to an external data communication apparatus, and

said second communication means performs the data communication of said external data communication apparatus.

30. A communication apparatus according to claim 19, wherein said communication apparatus is connected to an external voice communication apparatus and an external data communication apparatus, and

said third communication means concurrently performs the voice communication of external voice communication apparatus and the data communication of said external data communication apparatus.

31. A communication method according to claim 19, further comprising the step of determining whether the concurrent communication by said third communication means is possible when said concurrent communication mode is set in said setting step,

wherein said setting step sets said voice communication mode or said data communication mode when said determining step determines that the concurrent communication is not possible.

32. A communication method of a communication apparatus connectable to a communication line, the apparatus comprising first communication means for performing voice communication, second communication means for performing data communication, and third communication means for performing the voice communication and the data communication as concurrent communication, said method comprising:

a first switching step of selectively connecting the communication line to the first communication means;

a second switching step of selectively connecting the communication line to the second communication means; and

a third switching step of selectively connecting the communication line to the third communication means,

wherein the voice communication by the first communication means, the data communication by the second communication means or the concurrent communication by the third communication means is performed in accordance with switching operations in said first switching step, said second switching step, and said third switching step.

33. A communication method according to claim 32, further comprising the step of arbitrarily instructing the switching operations in said first switching step, said second switching step and said third switching step.

34. A communication method according to claim 32, wherein the switching operations in said first switching step, said second switching step and said third switching step are automatically performed.

35. A communication method according to claim 32, wherein when a predetermined signal is input while the third communication means is connected to the communication line by the third switching step, the communication line is connected to the first or second communication means is performed.

36. A communication method according to claim 32, wherein when a predetermined signal is input while the first or second communication means is connected to the communication line, the third communication means is connected to the communication line by said third switching step.

37. A communication method according to claim 32, wherein the third communication means performs a time division multiplexing communication.

38. A communication apparatus connectable to a communication line, comprising:

first connecting means for connecting to an external voice apparatus;

second connecting means for connecting to an external data communication apparatus;

multiplexing means for multiplexing a voice signal from the external voice communication apparatus connected to said first connecting means with a data signal from the external data apparatus connected to said second connecting means;

first switch means for connecting the external voice communication apparatus to the communication line in performing the voice communication and for connecting the external voice communication apparatus to said multiplexing means in performing multiplexing communication of the voice communication and the data communication;

second switch means for connecting the external data communication apparatus to the communication line in performing the data communication and for connecting the external data communication apparatus to said multiplexing means in performing multiplexing communication of the voice signal and the data signal; and

third switch means for connecting said multiplexing means to the communication line in performing multiplexing communication of the voice signal and the data signal.

39. A communication apparatus according to claim 38, further comprising instruction means for arbitrarily instructing switching operations of said first switch means, said second switch means and said third switch means.

40. A communication apparatus according to claim 39, wherein the switching operations of said first switch means, said second switch means and said third switch means are automatically performed.

41. A communication method of a communication apparatus connectable to a communication line, an external voice communication apparatus and an external data communication apparatus, the apparatus comprising multiplexing means for multiplexing a voice signal from the voice communication apparatus with a data signal from the external data communication apparatus, said method comprising:

a first switching step of connecting the external voice communication apparatus to the communication line in performing the voice communication and for connecting the external voice communication apparatus to the multiplexing means in performing multiplexing communication of the voice signal and the data signal;

a second switching step of connecting the external data communication apparatus to the communication line in performing the data communication and for connecting the external voice communication apparatus to the multiplexing means in performing multiplexing communication of the voice signal and the data signal; and

a third switching step of connecting the multiplexing means to the communication line in performing multiplexing communication of the voice signal and the data signal.

42. A communication method according to claim 41, further comprising the step of arbitrarily instructing switching operations in said first switching step, said second switching step and said third switching step.

43. A communication method according to claim 41, wherein the switching operations in said first switching step, said second switching step and said third switching step are automatically performed.