Packet-switched ring network having direct access to low and hig

PC video conferencing

Peripheral unit for satelite multi-videoconferencing

Personal data communication apparatus

Personal television channel system

Personal videoconferencing system having distributed...

Pictorial communication apparatus

Picture codec and teleconference terminal equipment

Picture codec and teleconference terminal equipment

Picture codec and teleconference terminal equipment

Picture codec and teleconference terminal equipment

Picture codec for teleconference equipment, which forms and disp

Picture combining technique in multipoint control unit

Picture data transmission device and picture signal coding...

Picture phone apparatus which checks validity of picture and...

Picture phone terminal interrupt function and picture phone term

Picture position indicator for picture phone

Picture signal transmitting system using CATV network in...

Picture transmission system

Picture-phone device providing means for guiding operator's...