Picture communication apparatus

Details Picture communication apparatus Picture communication apparatus

1990-01-12

1991-12-17

Ng, Jin F.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

358 85, H04N 142

Patent

active

050739263

ABSTRACT:
In a two-way communication system having first and second communication terminals, a telephone apparatus at each terminal for two-way telephone service and a picture communication apparatus at each terminal for providing users with visual images of each other; the picture communication apparatus includes video cameras for generating video signals to be transmitted, display apparatus for displaying the visual images, a control apparatus for controlling transmission and reception of the video signals, and a line drawing input apparatus connected to the control apparatus for generating a line signal representing the line drawing and which is transmitted with the video signals from the control apparatus.

REFERENCES:
patent: 3617630 (1971-11-01), Reiffel
patent: 4430526 (1984-02-01), Brown et al.
patent: 4650929 (1987-03-01), Boerger et al.
patent: 4893326 (1990-01-01), Duran et al.

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