초록 ▼

A video access apparatus (110, 150, 750, 850) provides for audio and video teleconferencing and telephony via a first communication channel (103) coupled to a primary station (105) having communication with a network (140), such as the public switched telephone network or an ISDN network. The video

A video access apparatus (110, 150, 750, 850) provides for audio and video teleconferencing and telephony via a first communication channel (103) coupled to a primary station (105) having communication with a network (140), such as the public switched telephone network or an ISDN network. The video access apparatus (110) includes a video network interface (210); a radio frequency modulator/demodulator (205); a user interface (215); and a processor arrangement (190). A videophone apparatus (700, 800) is coupleable to a video access apparatus via a second communication channel for video reception and transmission, and via a third communication channel for audio reception and transmission. The videophone apparatus includes a video monitor (715), a camera interface (235), a video camera (720), and a telephony module (710). Multiple videophone apparatuses (700, 800) may be used simultaneously, and multiple video signals from the videophone apparatuses (700, 800) may be multiplexed and combined into one composite video signal for transmission to the network (140).

대표청구항 ▼

[ What is claimed is:] [1.] An audio and video conferencing system, the audio and video conferencing system coupleable to a communication channel for audio and video transmission and reception, the audio and video conferencing system comprising:a plurality of videophone apparatuses, anda video acces

[ What is claimed is:] [1.] An audio and video conferencing system, the audio and video conferencing system coupleable to a communication channel for audio and video transmission and reception, the audio and video conferencing system comprising:a plurality of videophone apparatuses, anda video access apparatus coupled to at least one of the videophone apparatuses having a user audio interface for receiving one or more of a plurality of user selectable audio control signals from the videophone apparatus, the plurality of audio control signals including a first audio control signal for selection of an audio/video conferencing mode of the audio and video conferencing system, the video access apparatus responsive to receive a corresponding plurality of radio frequency input video signals from the plurality of videophone apparatuses, and wherein the video access apparatus is further responsive to demodulate and combine the plurality of radio frequency input video signals to form a combined video signal.