Information signal transmission system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 2, 2000
Issued Date -
N/A
app pub date -
Sep 29, 1998
filing date -
Apr 23, 1990
priority date (Note) -
Expired
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Abstract
The information signal transmission system of the present invention is so designed as to convert the analog information signal into digital information data and to transmit these digital data after enciphering a part of the digital data. It can therefore maintain the secrecy of the transmitted information signal and can employ a low-speed enciphering process, thereby reducing the magnitude of hardware and reducing its cost.
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