Peripheral audio/video communication system that interfaces with a host computer and determines format of coded audio/video signals

• US 5,802,281 A
• Filed: 09/07/1994
• Issued: 09/01/1998
• Est. Priority Date: 09/07/1994
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: RSI Systems Incorporated (Viseon Incorporated)
• Inventors: Clapp, Doug, Mulder, David
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): Chen, Anderson I.
• Application Number:
  US08/302,108
• Time in Patent Office: 1,455 Days
• Field of Search: 348/13-15, 370/62, 379/96, 379/102, 379/105, 379/202, 364/237.2, 364/242.94, 364/514 A, 395/200.04
• US Class Current: 709/228
• CPC Class Codes: H04M 2203/2044 Group features, e.g. closed user group
• CPC Class Codes: H04M 2203/5063 Centrally initiated conference, i.e. Conference server dials participants computer conference organisation arrangements H04L12/1818
• CPC Class Codes: H04M 3/4931 Directory assistance systems
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04N 7/142 Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q
• CPC Class Codes: H04N 7/148 Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Abstract

A peripheral video conferencing system is housed in a peripheral housing and adapted for communication with an analog or digital communication channel and a separate host computer system. Audio, video, and data file information is transmitted to and received from a remote conferencing site over the communication channel. A plurality of audio, video, and communication channel connectors provide means for acquiring source audio and video signals, and respectively displaying on a separate monitor and broadcasting over an internal or separate external speaker remote video images and audio. A high-speed output interface provides connectivity with the separate host computer system for coordinating, in cooperation with video conferencing application software operating thereon, the presentation of local and remote NTSC or PAL video images on a display coupled to the computer system.

Claims

1. A system for communicating with a communication channel and a separate host processor, the separate host processor being housed within a computer system housing and being coupled to a display, the system comprising:

a peripheral housing separate from the computer system housing; and

an audio/visual communication system integral to the peripheral housing, the audio/visual communication system comprising;

a source input interface that receives a source audio signal and a source video signal;

a local transmission interface that selectably transmits a coded source audio signal and a coded source video signal to either one of an analog or a digital communication channel;

a local receive interface that receives a coded remote audio signal and a coded remote video signal transmitted over the either one of the analog or the digital communication channel and automatically determines the format of the coded remote audio and video signals; and

an output interface, comprising an output connector, that communicates the remote video signal between the local receive interface and the output connector;

wherein the output interface receives at the output connector a coordination instruction produced by the separate host processor and communicates the coordination instruction between the output connector and the local receive interface, and the separate host processor, when coupled to the output connector, receives the remote video signal in response to the coordination instruction for displaying a corresponding video image on the display.

2. A system as claimed in claim 1, wherein the output interface comprises one of an SCSI interface and a PCMCIA interface.

3. A system as claimed in claim 1, wherein the source input interface comprises means for receiving the source video signal in one of a plurality of predetermined video formats.

4. A system as claimed in claim 1, wherein the source input interface comprises means for receiving the source audio signal from a microphone and the source video signal from at least one of a video camera and a video media player.

5. A system as claimed in claim 1, wherein the local transmission means comprises channel selection means for selectably transmitting the source audio and video signals over one of an analog communication channel and a digital communication channel.

6. A system as claimed in claim 1, wherein the local receive interface comprises a speaker for broadcasting audio reproduced from the remote audio signal.

7. A system as claimed in claim 1, wherein the local transmission interface comprises a data file processor that transmits a data file over the communication channel.

8. A system as claimed in claim 1, wherein:

the local transmission interface comprises a converter that converts a standard data file to a coded data file of a predetermined format; and

the local receive interface comprises a converter that converts a coded data file of a predetermined format to a standard data file.

9. A system for communicating with a communication channel and a separate host processor, the separate host processor being housed within a computer system housing and being coupled to a display, the system comprising:

a peripheral housing separate from the computer system housing;

an audio/visual communication system integral to the peripheral housing, the audio/visual communication system comprising;

source receive means for receiving a source audio signal and a source video signal;

local transmission means for transmitting a coded source audio signal and a coded source video signal over the communication channel;

local receive means for receiving a coded remote audio signal and a coded remote video signal transmitted over the communication channel and for determining the format of the coded remote audio and video signals; and

output means, comprising an output connector, for communicating the remote video signal between the local receive means and the output connector; and

software that cooperates with the separate host processor to produce a coordination instruction for coordinating communication of the remote video signal between the local receive means and the output connector, the output means comprising means for receiving the coordination instruction and communicating the coordination instruction between the output connector and the local receive means;

whereby the separate host processor, when coupled to the output connector and in response to the coordination instruction, receives the remote video signal and cooperates with the software to present on the display a video image associated with the remote video signal.

10. A system as claimed in claim 9, wherein:

the software cooperates with the separate host processor to produce a request coordination instruction; and

the local receive means comprises means for transmitting at least a portion of the remote video signal to the output connector in response to the request coordination instruction.

11. A system as claimed in claim 9, wherein the software cooperates with the separate host processor to transmit a data file over the communication channel.

12. A system as claimed in claim 11, wherein the software cooperates with the separate host processor to adjust the transmission bandwidth of the communication channel allocated for transmitting the date file, the source audio signal, and the source video signal.

13. A system as claimed in claim 9, wherein the local receive means comprises audio reproducing means for broadcasting audio reproduced from the remote audio signal.

14. A system for communicating with a communication channel comprising:

a separate host processor being housed within a computer system housing and being coupled to a display;

a peripheral housing separate from the computer system housing; and

an audio/visual communication system integral to the peripheral housing, the audio/visual communication system comprising;

source receive means for receiving source audio and video signals;

local transmission means for transmitting a coded source audio signal and a coded source video signal over the communication channel;

local receive means for receiving a coded remote audio signal and a coded remote video signal transmitted over the communication channel and for determining the format of the coded remote audio and video signals; and

output means, comprising an output connector, for communicating the remote video signal between the local receive means and the output connector and for communicating a coordination instruction produced by the separate host processor between the output connector and the local receive means;

wherein the separate host processor, when coupled to the output connector, receives the remote video signal in response to the coordination instruction for displaying a corresponding video image on the display.

15. A system as claimed in claim 14, wherein the separate host processor comprises software means, operable by the separate host processor, for coordinating communication of the remote video signal between the local receive means and the output connector.

16. A system as claimed in claim 14, wherein the output means comprises one of an SCSI interface and a PCMCIA interface.

17. A system as claimed in claim 14, wherein the local transmission means comprises channel selection means for selectably transmitting the source audio and video signals over one of an analog communication channel and a digital communication channel.

18. A system as claimed in claim 14, wherein the local receive means comprises audio reproducing means for broadcasting audio reproduced from the remote audio signal.

19. A system as claimed in claim 14, wherein the local transmission means comprises means for transmitting a data file over the communication channel.

20. A system as claimed in claim 19, wherein the host processor comprises means for adjusting the transmission bandwidth of the communication channel allocated for transmitting the data file, the source audio signal, and the source video signal.

21. A system as claimed in claim 14, wherein:

the local transmission means comprises means for transmitting the source video signal to the output means; and

the output means comprises means for communicating the source video signal between the output connector and the separate host processor.

22. A system as claimed in claim 21, wherein the separate host processor comprises means for displaying on the display video images associated with at least one of the remote and source video signals.

23. A system as claimed in claim 21, wherein the separate host processor comprises means for simultaneously displaying on the display video images associated with the remote and source video signals.

24. A system as claimed in claim 14, wherein the host processor comprises means for functioning by using an operating system different from an operating system employed by a second host processor communicating with the host processor.

25. A system as claimed in claim 14, wherein the host processor comprises:

detecting means for detecting an incoming communication received over the communication channel; and

software sensing means for producing a detection signal in response to the detecting means detecting an incoming communication.

26. A system as claimed in claim 25, wherein the host processor comprises software alerting means for generating an alert message displayed on the display in response to the detection signal.

27. A system as claimed in claim 26, wherein the host processor comprises:

interface means for receiving at least one of an answer coordination instruction and a decline coordination instruction from a user of the audio/visual communication system in response to the alert message; and

means, responsive to the answer coordination instruction, for coordinating receiving of the incoming communication.

28. A system as claimed in claim 14, wherein the host processor comprises:

means for displaying a video image associated with the remote decoded video signal within a video window displayed on the display; and

means for modifying the size of the video window displayed on the display.

29. A system as claimed in claim 14, wherein the host processor comprises user interface means for interpreting graphical indicia presented on the display to a corresponding predetermined coordination instruction.

30. A system as claimed in claim 14, wherein the local transmission means comprises means for converting the source video signal in at least one of an NTSC format, a PAL format, and an S-video format to an associated coded local video signal.

31. A system for communicating with a communication channel comprising:

a local host processor being housed within a separate local computer system housing and being coupled to a local display;

a local peripheral housing separate from the local computer system housing and comprising a local audio/visual communication system, the local audio/visual communication system comprising;

source receive means for receiving local audio and video signals acquired from a local conferencing site;

local transmission means for transmitting coded local audio and video signals over the communication channel;

local receive means for receiving coded remote audio and video signals transmitted over the communication channel and for determining the format of the coded remote audio and video signals; and

local output means, comprising a local output connector, for communicating the remote video signal between the local receive means and the local output connector and for communicating a coordination instruction produced by the local host processor between the local host processor and the local audio/visual communication system;

a remote host processor being housed within a separate remote computer system housing and being coupled to a remote display;

a remote peripheral housing separate from the remote computer system housing and comprising a remote audio/visual communication system, the remote audio/visual communication system comprising;

source receive means for receiving remote audio and video signals acquired from a remote conferencing site;

remote transmission means for transmitting coded remote audio and video signals over the communication channel;

remote receive means for receiving coded local audio and video signals transmitted over the communication channel and for determining the format of the coded local audio and video signals; and

remote output means, comprising a remote output connector, for communicating the local video signal between the remote receive means and the remote output connector and for communicating a coordination instruction produced by the remote host processor between the remote host processor and the remote audio/visual communication system;

wherein the local host processor, when coupled to the local output connector, receives the remote video signal in response to the local coordination instruction for displaying a corresponding remote video image on the local display, and the remote host processor, when coupled to the remote output connector, receives the local video signal in response to the remote coordination instruction for displaying a corresponding local video image on the remote display.

32. A system as claimed in claim 31, wherein:

the separate local host processor comprises software means, operable by the separate local host processor, for coordinating communication of the remote video signal between the local receive means and the local output connector; and

the separate remote host processor comprises software means, operable by the separate remote host processor, for coordinating communication of the local video signal between the remote receive means and the remote output connector.

33. A system as claimed in claim 31, wherein each of the local and remote host processors comprises file transfer means for transmitting and receiving a data file over the communication channel.

34. A system as claimed in claim 33, wherein each of the local and remote host processors comprises means for adjusting the transmission bandwidth of the communication channel allocated for transmitting the data file and respectively the local and remote audio and video signals.

35. A system as claimed in claim 31, wherein each of the local and remote host processors comprises:

means for operating at least one of a plurality of software applications within one of a plurality of video windows respectively displayable on each of the local and remote displays; and

window sharing means for sharing between the local and remote host processors at least one of the plurality of video windows displayed on at least one of the local and remote displays.

36. A system as claimed in claim 35, wherein each of the local and remote window sharing means comprises means for simultaneously modifying operation of one of the plurality of software applications displayed in at least one of the plurality of shared video windows.

37. A system as claimed in claim 35, wherein each of the local and remote window sharing means comprises means for simultaneously modifying a video image displayed in at least one of the plurality of shared video windows.

38. A system as claimed in claim 31, wherein:

the local audio/visual communication system comprises audio reproduction means for broadcasting audio associated with the remote audio signal; and

the remote audio/visual communication system comprises audio reproduction means for broadcasting audio associated with the local audio signal.

39. A system as claimed in claim 31, wherein:

the local audio/visual communication system comprises local channel selection means for selectably transmitting the local audio and video signals over at least one of an analog communication channel and a digital communication channel; and

the remote audio/visual communication system comprises channel selection means for selectably transmitting the remote audio and video signals over at least one of the analog communication channel and the digital communication channel.

40. A system as claimed in claim 31, wherein:

the local host processor comprises local user interface means for receiving the local coordination instruction from a local user of the audio/visual communication system; and

the remote host processing means comprises remote user interface means for receiving the remote coordination instruction from a remote user of the audio/visual communication system.

41. A system as claimed in claim 40, wherein:

the local user interface means comprises means for interpreting graphical indicia presented on the local display to a corresponding predetermined local coordination instruction; and

the remote user interface means comprises means for interpreting graphical indicia presented on the remote display to a corresponding predetermined remote coordination instruction.

42. A system as claimed in claim 31, wherein each of the local and remote host processors comprises means for functioning by using one of a plurality of operating systems.

43. A system as claimed in claim 42, wherein the local host processor comprises means for functioning by using a first one of the plurality of operating systems, and the remote host processor comprises means for functioning by using one of the plurality of operating systems other than the first one of the plurality of operating systems.