Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Patent
1995-02-08
1999-12-14
Kizou, Hassan
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
370522, 370527, 348 3, 348 7, 348 10, 380 5, 380 10, 380 20, 380 21, 455 51, H04H 104, H04J 312
Patent
active
060026944
ABSTRACT:
A billing system for use in a chargeable program broadcasting is capable of reliably billing a subscriber for program reception while preventing unauthorized reception thereof. A receiving terminal includes a primary terminal 100 and a secondary terminal 150. The primary terminal 100 receives a compressed video signal and confirms by an error checker 113 thereof whether there is a transmission error and bills, by means of a billing device 114 thereof, the receiving subscriber on the basis of an error information and a program information, etc., separated from the video signal by a separation circuit 112. The compressed video data is time-axis multiplexed with a terminal identifying code and a key signal and transmitted to the secondary terminal 150. In the secondary terminal 150, a bill for the subscriber is confirmed by the terminal identifying code and the compressed data is decoded by a decoder circuit 166 thereof.
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System Design Criteria Of Addressable Terminals Optimized For The CATV Operator, Thomas E. O'Brien JR. PMC 005155.
Hayakawa Hiroyuki
Hosokawa Kyoichi
Otsubo Tadasu
Owashi Hitoaki
Yoshizawa Kazuhiko
Hitachi , Ltd.
Kizou Hassan
Rao Seema S.
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