Patent US6363209B2 successfully refreshed from Google Patents.
US6363209B2
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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
2026-10-26 01:06
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.
References Cited (Backward Citations)
US4594726A
Cited
WO1989008915A1
Cited
US5247575A
Cited
US4994916A
Cited
EP0400906A2
Cited
US5134496A
Cited
US5191436A
Cited
US5488409A
Cited
EP0581317A2
Cited
WO1994010771A1
Cited
US5400403A
Cited
US5579120A
Cited
EP0667720A2
Cited
US5734787A
Cited
US5907656A
Cited
EP0762417A2
Cited
US5892900A
Cited
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 |