Data decoding apparatus and method, charge information processing apparatus and method, data reproducing apparatus and method, electronic money, electronic use right, and terminal apparatus
First Claim
1. Electronic money having an effect corresponding to cash, wherein its use period is limited.
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Accused Products
Abstract
Reproduction data is supplied to a decoder and encryption is decoded. A reproducing conditions label is detected by a reproducing conditions label detecting unit. Compression encoding is decoded by a decompressor. A watermark detecting unit discriminates whether the reproducing conditions label has been falsified or not. In a listening right counter, each time the reproduction data is decoded, listening right data is changed. The listening right data transmitted from a prepaid data charger by an antenna and a communicating module is stored into a memory unit. An encrypting module and a decoding module are provided in the communicating module. In a watermark adding unit, a watermark is added to output data. The data is converted into an analog output by a D/A converter and outputted to the outside.
44 Citations
8 Claims
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1. Electronic money having an effect corresponding to cash, wherein its use period is limited.
- 2. A system in which electronic money or electronic use right whose use period is limited and electronic money or electronic use right whose use period is not limited exist mixedly.
Specification