US5627655A
Expired / Lapsed
US
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Recording apparatus and reproducing apparatus for video signals
Assignee: Hitachi Consumer Electronics Co Ltd
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Filing: 1994-10-28
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Granted: 1997-05-06
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Expires: 2014-10-28
Abstract
Abstract In a reproducing apparatus, a generator circuit for adding copy information during the vertical blanking period of a reproduced video signal output is provided, and copy information in compliance with copy information contained in the reproduced signal is added and delivered. In a recording apparatus, a detection circuit for detecting copy information in an inputted video signal is provided, and permission/inhibition of copy is controlled on the basis of the detected copy information and when copy is permitted, necessary copy information is generated and added to a recording signal.
Inventors
- 👤 Hiroo Okamoto
- 👤 Masuo Oku
- 👤 Takaharu Noguchi
- 👤 Takao Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:14
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/00086; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/913; H04N5/92; H04N5/9201; H04N5/9206; H04N2005/91307; H04N2005/91314; H04N2005/91321; H04N2005/91328
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
224 words
A video signal reproducing apparatus with a control code generator arrangement, said apparatus comprising: a reproducing means for reproducing a video signal recorded on a recording medium; a control code detection means for detecting a digital control code contained in a reproduced signal reproduced by said reproducing means, said digital control code commanding at least one of a reproduction condition and a recording condition with respect to said video signal; a control code reconstructing means for forming a reconstructed digital control code to be added to said video signal to command a subsequent at least one of a reproduction condition and a recording condition of said video signal, said subsequent at least one of a reproduction condition and a recording condition being dictated by a content of said digital control code; a first adding means for adding said reconstructed digital control code from said control code reconstructing means to a portion of a vertical blanking period of said video signal reproduced by said reproducing means to produce an analog video signal with said reconstructed digital control code to output said produced analog video signal; and a second adding means for adding said reconstructed digital control code to said video signal reproduced by said reproducing means to produce a digital video signal with said reconstructed digital control code to output said produced digital video signal.
Claim 2
Dependent Claim
224 words
A video signal reproducing apparatus with a control code generator arrangement, said apparatus comprising: a reproducing means for reproducing a video signal recorded on a recording medium; a control code detection means for detecting a digital control code contained in a reproduced signal reproduced by said reproducing means, said digital control code commanding at least one of a reproduction condition and a recording condition with respect to said video signal; a control code reconstructing means for forming a reconstructed digital control code to be added to said video signal to command a subsequent at least one of a reproduction condition and a recording condition of said video signal, said subsequent at least one of a reproduction condition and a recording condition being dictated by a content of said digital control code; a first adding means for adding said reconstructed digital control code from said control code reconstructing means to a portion of a vertical blanking period of said video signal reproduced by said reproducing means to produce an analog video signal with said reconstructed digital control code to output said produced analog video signal; and a second adding means for adding said reconstructed digital control code to said video signal reproduced by said reproducing means to produce a digital video signal with said reconstructed digital control code to output said produced digital video signal.
Claim 3
Dependent Claim
32 words
A video signal reproducing apparatus as claimed in claim 1, wherein said digital control code is copy information indicative of permission/inhibition of copying of said video signal recorded on said recording medium.
Claim 4
Dependent Claim
38 words
A video signal reproducing apparatus as claimed in claim 2, wherein said copy information contains information about at least one of an inhibition of copying, permission of copying and limitation on a number of times of copying operations.
Claim 5
Dependent Claim
44 words
A video signal reproducing apparatus as claimed in claim 3, wherein said control code reconstructing means forms said reconstructed digital control code as a code indicative of a same contents as that of said digital control code detected by said control code detection means.
Claim 6
Dependent Claim
51 words
A video signal reproducing apparatus as claimed in claim 2, wherein said control code reconstructing means forms said reconstructed digital control code as a code indicative of permission of copying when said control code detection means cannot detect said digital control code from said video signal reproduced by said reproducing means.
Claim 7
Dependent Claim
35 words
A video signal reproducing apparatus as claimed in claim 1, wherein said adding means inserts said reconstructed digital control code from said control code reconstructing means into a blanking period of said analog video signal.
Claim 8
Dependent Claim
32 words
A video signal reproducing apparatus as claimed in claim 1, wherein a false synchronization pulse is added to said video signal to be outputted in addition to said reconstructed digital control code.
Claim 9
Dependent Claim
30 words
A video signal reproducing apparatus as claimed in claim 1, wherein when said digital control code is not detected, a false synchronization pulse is detected as said digital control code.
Claim 10
Dependent Claim
31 words
A video signal reproducing apparatus as claimed in claim 1, wherein said digital control code is recorded in a multiplex fashion in the analog video signal to improve a detection ability.
Claim 11
Dependent Claim
208 words
A video signal recording apparatus with a control code generator arrangement, comprising: a first input means for receiving an input analog video signal; a second input means for receiving an input digital video signal; a control code detection means for detecting a digital control code contained in an inputted one video signal of said input analog video signal and said input digital video signal, said digital control code commanding at least one of a reproduction condition and a recording condition with respect to said inputted one video signal; a control code reconstructing means for forming a reconstructed digital control code to be added to said inputted one video signal to command a subsequent at least one of a reproduction condition and a recording condition of said inputted one video signal, said subsequent at least one of a reproduction condition and a recording condition of said inputted one video signal being dictated by a content of said digital control code; an adding means for adding said reconstructed digital control code from said control code reconstructing means to said input video signal to produce a recording signal with said reconstructed digital control code; and a recording means for recording said recording signal from said adding means on a recording medium.
Claim 12
Dependent Claim
208 words
A video signal recording apparatus with a control code generator arrangement, comprising: a first input means for receiving an input analog video signal; a second input means for receiving an input digital video signal; a control code detection means for detecting a digital control code contained in an inputted one video signal of said input analog video signal and said input digital video signal, said digital control code commanding at least one of a reproduction condition and a recording condition with respect to said inputted one video signal; a control code reconstructing means for forming a reconstructed digital control code to be added to said inputted one video signal to command a subsequent at least one of a reproduction condition and a recording condition of said inputted one video signal, said subsequent at least one of a reproduction condition and a recording condition of said inputted one video signal being dictated by a content of said digital control code; an adding means for adding said reconstructed digital control code from said control code reconstructing means to said input video signal to produce a recording signal with said reconstructed digital control code; and a recording means for recording said recording signal from said adding means on a recording medium.
Claim 13
Dependent Claim
33 words
A video signal recording apparatus as claimed in claim 10, wherein said digital control code is copy information indicative of permission/inhibition of copying of said input video signal inputted from said input means.
Claim 14
Dependent Claim
38 words
A video signal recording apparatus as claimed in claim 8, wherein said copy information contains information about at least one of an inhibition of copying, permission of copying and limitation on a number of times of copying operations.
Claim 15
Dependent Claim
39 words
A video signal recording apparatus as claimed in claim 12, wherein when said copy information is information for permitting copying, said control code reconstructing means forms said reconstructed digital control code as a code indicative of permission of copying.
Claim 16
Dependent Claim
45 words
A video signal recording apparatus as claimed in claim 12, wherein when said copy information is information for limiting a number of times of copying operations, said control code reconstructing means forms said reconstructed digital control code as a code indicative of inhibition of copying.
Claim 17
Dependent Claim
43 words
A video signal recording apparatus as claimed in claim 8, further comprising an inhibiting means for inhibiting recording operation of said recording means when said digital control code detected by said control code detecting means is copy information indicative of inhibition of copying.
Claim 18
Dependent Claim
51 words
A video signal recording apparatus as claimed in claim 10, wherein when said control code detecting means cannot detect said control code from said input video signal inputted from said input means, said control code reconstructing means forms said reconstructed digital control code as a code indicative of permission of copying.
Claim 19
Dependent Claim
51 words
A video signal recording apparatus as claimed in claim 10, wherein when said video signal to be recorded on said recording means is an analog video signal, said adding means inserts said reconstructed digital control code from said control code reconstructing means into a blanking period of said analog video signal.
Claim 20
Dependent Claim
31 words
A video signal recording apparatus as claimed in claim 10, wherein a false synchronization pulse is added to said recording signal to be outputted in addition to said digital control code.
Claim 21
Dependent Claim
30 words
A video signal recording apparatus as claimed in claim 10, wherein when said digital control code is not detected, a false synchronization pulse is detected as said digital control code.
Claim 22
Dependent Claim
31 words
A video signal recording apparatus as claimed in claim 10, wherein said digital control code is recorded in a multiplex fashion in the analog video signal to improve a detection ability.
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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) | 2000-05-05 | 2000-11-04 | 2001-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-05-05 | 2004-11-04 | 2005-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-05-05 | 2008-11-04 | 2009-05-06 | $7700.00 | Window Closed / Lapsed |