Interactive chargeable communication system with billing system therefor
First Claim
1. A data reproduction apparatus for reproducing coded data supplied from an information supplier, wherein:
- said coded data includes at least scrambled data, a decode key used for descrambling said scrambled data and individual information defining every said scrambled data; and
said data reproduction apparatus providesa data reproduction means for reproducing said coded data,an extracting means for extracting said individual information from said coded data reproduced by said data reproduction means,an individual information processing means for referring to said individual information extracted by said extracting means and an identification code for identifying said data reproduction system or a user, anda descrambling means for descrambling said scrambled data included in said coded data reproduced by said data reproduction means.
4 Assignments
0 Petitions
Accused Products
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.
85 Citations
12 Claims
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1. A data reproduction apparatus for reproducing coded data supplied from an information supplier, wherein:
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said coded data includes at least scrambled data, a decode key used for descrambling said scrambled data and individual information defining every said scrambled data; and said data reproduction apparatus provides a data reproduction means for reproducing said coded data, an extracting means for extracting said individual information from said coded data reproduced by said data reproduction means, an individual information processing means for referring to said individual information extracted by said extracting means and an identification code for identifying said data reproduction system or a user, and a descrambling means for descrambling said scrambled data included in said coded data reproduced by said data reproduction means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data reproduction apparatus for reproducing coded data supplied from an information supplier, wherein:
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said coded data includes at least scrambled data and an individual information defined differently in each of said scrambled data; said data reproduction apparatus provides a data request means for transmitting a data request signal to said information supplier, a decode key memory means for storing a decode key which is necessary to descramble said scrambled data, a data reproduction means for reproducing said coded data, an extracting means for extracting said individual information from said coded data reproduced by said data reproduction means, a comparing means for referring to said individual information extracted by said extracting means and an identification code for identifying said data reproduction system or a user, and a descrambling means for descrambling said scrambled data included in said coded data reproduced by said data reproduction means; said data reproduction apparatus stores said decode key transferred from said information supplier responding to said data request signal; and said descrambling means descrambles said scrambled data using said decode key stored in said decode key memory means, only when said comparing means distinguishes a permission to descramble said scrambled data according to a result of referring said individual information and said identification code. - View Dependent Claims (10, 11, 12)
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Specification