Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1985-11-07
1987-12-22
Rubinson, Gene Z.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 98, 358 85, H04M 1100, H04N 714
Patent
active
047150599
ABSTRACT:
The present invention is a conversational freeze-frame video phone which transmits a source image over a standard telephone line in conjunction with audio voice signals. A camera is used to capture an image to be transmitted and the image is mapped onto an image field of 2,000 to 5,000 pixels. The image field is displayed on a display area of approximately one square inch on a display screen. Digitized data representing the pixels is asynchronously transmitted on a modulated signal in a single burst of less than three seconds duration. Corresponding remote images are asynchronously received, demodulated, and displayed. The transmission of the audio signal is interrupted upon the detection of a video image being transmitted.
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Cooper-Hart Michael A.
Emmons Lawrence D.
Mackley James S.
Stokes David H.
Conners Matthew E.
Luma Telecom, Inc.
Rubinson Gene Z.
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