US5887130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Information processing apparatus, information processing method, data recording medium, and information processing system
Assignee: Sony Corp
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Filing: 1996-12-04
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Granted: 1999-03-23
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Expires: 2016-12-04
Abstract
Abstract An improvement in protecting information transmitted via a network from illegal copying is disclosed. While data input from an information provider via a network is stored in a storage device, an ID inherent in an information terminal unit stored in a ROM, the time information which is output from a real-time clock counter, an ID of the owner of an ID card read by a card reader are multiplex-recorded as identification information on the input data. Identification information is also multiplex-recorded on the data read from the storage device and to be output through the output terminal.
Inventors
- 👤 Toshitada Doi
- 👤 Yoshitomo Osawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:52
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2389; H04N21/23892; G; G06; G06F; G06F21/00; G06F21/10; G06F2221/00; G06F2221/21; G06F2221/2135
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
An information processing unit, comprising: input means for receiving a data input; output means for outputting the data input from said input means; and recording means for recording identification information, which serves to distinguish said information processing unit from other information processing units, on the data when the data is input or output, wherein said recording means comprises: designation means for designating a predetermined code from codes, which are always set as fixed length codes, of the data including orthogonal transform coefficients which are transformed into variable length codes and fixed length codes; and writing means for writing said identification information into at least part of the fixed length code designated by said designation means.
Claim 2
Dependent Claim
115 words
An information processing unit, comprising: input means for receiving a data input; output means for outputting the data input from said input means; and recording means for recording identification information, which serves to distinguish said information processing unit from other information processing units, on the data when the data is input or output, wherein said recording means comprises: designation means for designating a predetermined code from codes, which are always set as fixed length codes, of the data including orthogonal transform coefficients which are transformed into variable length codes and fixed length codes; and writing means for writing said identification information into at least part of the fixed length code designated by said designation means.
Claim 3
Dependent Claim
38 words
An information processing unit according to claim 1, further comprising correction means for recording correction data, which compensates for an influence produced by recording said identification information on the predetermined fixed length code, on another fixed length code.
References Cited (Backward Citations)
US4788543A
Cited
US4926478A
Cited
US5446744A
Cited
US5233655A
Cited
US5649185A
Cited
US5509050A
Cited
US5363446A
Cited
US5371897A
Cited
US5565992A
Cited
US5524072A
Cited
US5528284A
Cited
US5553144A
Cited
US5671281A
Cited
US5590124A
Cited
US5537532A
Cited
US5668945A
Cited
US5630059A
Cited
US5619571A
Cited
US5745568A
Cited
US5638448A
Cited
US5694469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |