US6363209B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal recording/reproducing method and apparatus, signal record medium and signal
Assignee: Sony Corp
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Filing: 1998-10-14
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Granted: 2002-03-26
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Expires: 2018-10-14
Abstract
Abstract A signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus, whereby a signal recorded on a signal record medium can identified as being an original signal or a copied signal. A CPU 11 generates, at a pe-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit 3 adds the identification signal to the video signals and/or the audio signals. A sector forming circuit 5 and circuit components up to a recording/reproducing head 14 record the video signals and/or the audio signals and the ancillary identification signal on an optical disc 12.
Inventors
- 👤 Yoichiro Sako
- 👤 Isao Kawashima
- 👤 Yoshitomo Osawa
- 👤 Akira Kurihara
- 👤 Shozo Masuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:19
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/80; H04N21/83; H04N21/835; H04N21/8358; G; G11; G11B; G11B20/00; G11B20/10; G11B20/00086; G11B20/00094; G11B20/00115; G11B20/00123; G11B20/00166; G11B20/00181; G11B20/00681; G11B20/00688; G11B20/00884; G11B20/00891; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/32; G11B27/327; G11B27/329; H04N21/20; H04N21/23; H04N21/238; H04N21/2389; H04N21/23892; H04N5/00; H04N5/76; H04N5/91; H04N5/913; G06; G06F; G06F2211/00; G06F2211/007; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/2562; G11B7/00; G11B7/007; G11B7/00736; H04N2005/91307; H04N2005/91335; H04N2005/91342; H04N2005/91357; H04N2005/91364; H04N5/84; H04N5/85; H04N9/00; H04N9/79; H04N9/7921; H04N9/80; H04N9/804; H04N9/8042
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
153 words
A signal record medium having recorded thereon a video signal and/or an audio signal of which a least significant bit of a plurality of portions of said video signal, and/or said audio signal has been modified to include an identification relevant to said video signal and/or said audio signal within a portion of said video signal and/or said audio signal including, or in the vicinity of, a determined high level portion thereof within a predetermined time interval, and in a configuration so as to reduce the effects of the inclusion of said identification on said video signal and/or said audio signal, and wherein said identification is detected by an apparatus that separates said identification from said video signal and/or said audio signal by sampling all of the least significant bits of all of the video signal and/or audio signal in said predetermined time interval and processing all of said detected least significant bits.
Claim 2
Dependent Claim
153 words
A signal record medium having recorded thereon a video signal and/or an audio signal of which a least significant bit of a plurality of portions of said video signal, and/or said audio signal has been modified to include an identification relevant to said video signal and/or said audio signal within a portion of said video signal and/or said audio signal including, or in the vicinity of, a determined high level portion thereof within a predetermined time interval, and in a configuration so as to reduce the effects of the inclusion of said identification on said video signal and/or said audio signal, and wherein said identification is detected by an apparatus that separates said identification from said video signal and/or said audio signal by sampling all of the least significant bits of all of the video signal and/or audio signal in said predetermined time interval and processing all of said detected least significant bits.
Claim 3
Dependent Claim
43 words
The signal record medium as claimed in claim 1 wherein said video signal and/or said audio signal is modified to include said identification in a configuration so that said identification is detected by statistic processing of said video signal and/or said audio signal.
Claim 4
Dependent Claim
31 words
The signal record medium as claimed in claim 2 wherein a least significant bit of a portion of said video signal and/or said audio signal is modified to include said identification.
Claim 5
Dependent Claim
27 words
The signal record medium as claimed in claim 3 wherein said identification is inserted into said video signal and/or said audio signal having a high signal energy.
Claim 6
Dependent Claim
26 words
The signal record medium as claimed in claim 2 wherein said identification is included in said video signal and/or said audio signal at a synchronous timing.
Claim 7
Dependent Claim
26 words
The signal record medium as claimed in claim 2 wherein said identification is included in said video signal and/or said audio signal at an asynchronous timing.
Claim 8
Dependent Claim
37 words
The signal record medium as claimed in claim 1 wherein a least significant bit of a pre-set sample of said video signal and/or said audio signal having a high signal energy is modified to include said identification.
Claim 9
Dependent Claim
27 words
The signal record medium as claimed in claim 7 wherein said identification is inserted into said video signal and/or said audio signal having a high signal energy.
Claim 10
Dependent Claim
28 words
The signal record medium as claimed in claim 1 wherein said audio signal and/or said video signal is modified to include said identification signal at a synchronous timing.
Claim 11
Dependent Claim
21 words
The signal record medium as claimed in claim 1 wherein said video signal and or said audio signal are compressed signals.
Claim 12
Dependent Claim
34 words
The signal record medium as claimed in claim 1 wherein said identification is arrayed at a higher coefficient position of the coefficients obtained on orthogonal transform of said video signal and/or said audio signal.
Claim 13
Dependent Claim
40 words
The signal record medium as claimed in claim 1 wherein a dither noise modulated in accordance with the identification is added to said video signal and/or said audio signal and the resulting signals are recorded on the signal recording medium.
Claim 14
Dependent Claim
69 words
The signal recording medium of claim 1 , wherein said portion of said video signal and/or said audio signal including, or in the vicinity of, said high level portion has been modified by increasing the values of said video signal and/or said audio signal, decreasing the values of said video signal and/or said audio signal, or keeping the values of said video signal and/or said audio signal without change.
Claim 15
Dependent Claim
62 words
The signal recording medium of claim 1 , wherein said identification has been inserted in a least significant bit of a plurality of portions of said video and/or audio signal at predetermined portions of said video and/or audio signals, said identification defining that said video and/or audio signal is original or copied, a maker identification, a formatter identification, or copying management information.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-03-25 | 2005-09-24 | 2006-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-25 | 2009-09-24 | 2010-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-25 | 2013-09-24 | 2014-03-26 | $7700.00 | Window Closed / Lapsed |