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Patent US5778064A successfully refreshed from Google Patents.
US5778064A
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Apparatus and method for processing a high definition video signal
Assignee: Sony Corp
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Filing: 1996-03-28
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Granted: 1998-07-07
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Expires: 2016-03-28
Abstract
Abstract Digital video tape recorder which reproduces from a record medium a digital high definition video signal having copy-prevention data therein, extracts the copy-prevention data from the reproduced signal, generates from the extracted digital copy-prevention data an analog copy-inhibit signal that has the same data format as a copy-inhibit signal superimposed on a standard definition video signal, converts the reproduced digital high definition video signal to an analog signal, and superimposes the analog copy-inhibit signal onto the analog signal for output. To record a high definition video signal, the digital video tape recorder receives an analog high definition video signal that has superimposed thereon a copy-inhibit signal having the same data format as a copy-inhibit signal superimposed on a standard definition video signal, extracts the copy-inhibit signal from the received analog high definition video signal, supplies the received analog high definition video signal when that signal is not copy-protected, converts the supplied video signal to a digital signal, generates digital copy-prevention data from the extracted copy-inhibit signal, adds the digital copy-prevention data to the digital signal, and records on a record medium the digital signal with the digital copy-prevention data added thereto.
Inventors
- 👤 Teruhiko Kori
- 👤 Tadashi Ezaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:16
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/913; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N2005/91307; H04N2005/91321; H04N2005/91328; H04N7/015
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
102 words
Apparatus for processing a high definition video signal having copy-prevention information included therein, comprising: receiving means for receiving a digital high definition video signal having said copy-prevention information; extracting means for extracting said copy-prevention information from said digital high definition video signal; generating means for generating from said extracted copy-prevention information an analog copy-inhibit signal having a data format of another copy-inhibit signal superimposed on a standard definition video signal; means for converting said digital high definition video signal to an analog high definition video signal; and adding means for adding said analog copy-inhibit signal to said analog high definition video signal.
Claim 2
Dependent Claim
102 words
Apparatus for processing a high definition video signal having copy-prevention information included therein, comprising: receiving means for receiving a digital high definition video signal having said copy-prevention information; extracting means for extracting said copy-prevention information from said digital high definition video signal; generating means for generating from said extracted copy-prevention information an analog copy-inhibit signal having a data format of another copy-inhibit signal superimposed on a standard definition video signal; means for converting said digital high definition video signal to an analog high definition video signal; and adding means for adding said analog copy-inhibit signal to said analog high definition video signal.
Claim 3
Dependent Claim
30 words
The apparatus of claim 1, wherein said adding means superimposes said analog copy-inhibit signal onto said analog high definition video signal to produce a superimposed analog high definition video signal.
Claim 4
Dependent Claim
47 words
The apparatus of claim 1, wherein the digital high definition video signal includes video data, audio data and system data, said system data including said copy-prevention information; and said extracting means extracts said copy-prevention information from said system data included in said digital high definition video signal.
Claim 5
Dependent Claim
48 words
The apparatus of claim 1, wherein said digital high definition video signal includes video image data, video auxiliary data, audio sound data and audio auxiliary data; and said extracting means extracts said copy-prevention information from at least one of said video auxiliary data and said audio auxiliary data.
Claim 6
Dependent Claim
26 words
The apparatus of claim 4, wherein said video auxiliary data and said audio auxiliary data are comprised of packs of data having a common pack structure.
Claim 7
Dependent Claim
29 words
The apparatus of claim 1, wherein said adding means is operable to add said analog copy-inhibit signal to a vertical blanking interval of said analog high definition video signal.
Claim 8
Dependent Claim
40 words
The apparatus of claim 1, wherein said extracting means includes means for providing said digital high definition video signal without said copy-prevention information as an additional signal; and said adding means adds said analog copy-inhibit signal to said additional signal.
Claim 9
Dependent Claim
25 words
The apparatus of claim 1, wherein said copy-prevention information identifies whether said digital high definition video signal is fully copy-protected, partially copy-protected, or not copy-protected.
Claim 10
Dependent Claim
26 words
The apparatus of claim 1, wherein said receiving means is comprised of reproducing means for reproducing said digital high definition video signal from a record medium.
Claim 11
Dependent Claim
155 words
Apparatus for processing an analog high definition video signal having a copy-inhibit signal superimposed thereon, comprising: extracting means for extracting from said analog high definition video signal a copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of another copy-inhibit signal superimposed on a standard definition video signal; supplying means for supplying said analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies said analog high definition video signal as not copy-protected; generating means for generating from the extracted copy-inhibit signal digital copy-prevention data having a data format different than a data format of said copy-inhibit signal; means for converting the supplied high definition video signal to a digital high definition video signal; and combining means for combining said digital copy-prevention data and said digital high definition digital video signal to produce an output high definition video signal.
Claim 12
Dependent Claim
155 words
Apparatus for processing an analog high definition video signal having a copy-inhibit signal superimposed thereon, comprising: extracting means for extracting from said analog high definition video signal a copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of another copy-inhibit signal superimposed on a standard definition video signal; supplying means for supplying said analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies said analog high definition video signal as not copy-protected; generating means for generating from the extracted copy-inhibit signal digital copy-prevention data having a data format different than a data format of said copy-inhibit signal; means for converting the supplied high definition video signal to a digital high definition video signal; and combining means for combining said digital copy-prevention data and said digital high definition digital video signal to produce an output high definition video signal.
Claim 13
Dependent Claim
20 words
The apparatus of claim 10, further comprising means for recording the output high definition video signal on a record medium.
Claim 14
Dependent Claim
29 words
The apparatus of claim 10, wherein said combining means combines said digital copy-prevention data to said digital high definition video signal to produce said output high definition video signal.
Claim 15
Dependent Claim
24 words
The apparatus of claim 10, wherein said copy-inhibit signal is superimposed on said analog high definition video signal in a vertical blanking interval thereof.
Claim 16
Dependent Claim
75 words
The apparatus of claim 10, wherein said generating means is operable to generate digital video auxiliary data and digital audio auxiliary data; said digital copy-prevention data being included in at least one of said digital video auxiliary data and said digital audio auxiliary data; and said combining means combines said digital video auxiliary data and said digital audio auxiliary data to said digital high definition video signal to produce said output high definition video signal.
Claim 17
Dependent Claim
29 words
The apparatus of claim 14, wherein said digital video auxiliary data and said digital audio auxiliary data each is comprised of packs of data having a common pack structure.
Claim 18
Dependent Claim
60 words
The apparatus of claim 10, wherein said copy-inhibit signal identifies said analog high definition video signal as fully copy-protected, partially copy-protected, or not copy-protected; and said supplying means supplies said analog high definition video signal as said supplied high definition video signal when said copy-inhibit signal identifies said analog high definition video signal as either partially copy-protected or not copy-protected.
Claim 19
Dependent Claim
39 words
The apparatus of claim 16, wherein said generating means generates digital copy-prevention data indicating said output high definition video signal as copy-protected when said copy-inhibit signal identifies said analog high definition video signal as either copy-protected or partially copy-protected.
Claim 20
Dependent Claim
112 words
Apparatus for reproducing from a record medium a digital high definition video signal having digital copy-prevention data therein, comprising: means for reproducing said digital high definition video signal from said record medium; means for extracting digital copy-prevention data from the reproduced digital high definition video signal; means for generating from said extracted digital copy-prevention data an analog copy-inhibit signal having a data format of a copy-inhibit signal superimposed on a standard definition video signal; means for converting the reproduced digital high definition video signal to an analog high definition video signal; and means for superimposing said analog copy-inhibit signal onto said analog high definition video signal to produce an analog output signal.
Claim 21
Dependent Claim
112 words
Apparatus for reproducing from a record medium a digital high definition video signal having digital copy-prevention data therein, comprising: means for reproducing said digital high definition video signal from said record medium; means for extracting digital copy-prevention data from the reproduced digital high definition video signal; means for generating from said extracted digital copy-prevention data an analog copy-inhibit signal having a data format of a copy-inhibit signal superimposed on a standard definition video signal; means for converting the reproduced digital high definition video signal to an analog high definition video signal; and means for superimposing said analog copy-inhibit signal onto said analog high definition video signal to produce an analog output signal.
Claim 22
Dependent Claim
30 words
The apparatus of claim 18, wherein said means for converting converts the reproduced digital high definition video signal without said digital copy-prevention data to said analog high definition video signal.
Claim 23
Dependent Claim
167 words
Apparatus for recording a digital high definition video signal on a record medium, comprising: means for receiving an analog high definition video having a copy-inhibit signal superimposed thereon, said copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of a copy-inhibit signal superimposed on a standard definition video signal; means for extracting said copy-inhibit signal from the received analog high definition video signal; means for supplying the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as not copy-protected; means for converting the supplied high definition video signal to a digital high definition video signal; means for generating from said extracted copy-inhibit signal digital copy-prevention data; means for adding said digital copy-prevention data to the digital high definition video signal; and means for recording the digital high definition video signal having said digital copy-prevention data added thereto on a record medium.
Claim 24
Dependent Claim
167 words
Apparatus for recording a digital high definition video signal on a record medium, comprising: means for receiving an analog high definition video having a copy-inhibit signal superimposed thereon, said copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of a copy-inhibit signal superimposed on a standard definition video signal; means for extracting said copy-inhibit signal from the received analog high definition video signal; means for supplying the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as not copy-protected; means for converting the supplied high definition video signal to a digital high definition video signal; means for generating from said extracted copy-inhibit signal digital copy-prevention data; means for adding said digital copy-prevention data to the digital high definition video signal; and means for recording the digital high definition video signal having said digital copy-prevention data added thereto on a record medium.
Claim 25
Dependent Claim
65 words
The apparatus of claim 20, wherein said copy-inhibit signal identifies the received analog high definition video signal as either fully copy-protected, partially copy-protected, or not copy-protected; and said means for supplying supplies the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as either partially copy-protected or not copy-protected.
Claim 26
Dependent Claim
46 words
The apparatus of claim 21, wherein said means for generating generates from said extracted copy-inhibit signal digital copy-prevention data indicating the digital high definition video signal as copy-protected when said copy-inhibit signal identifies the received analog high definition video signal as either copy-protected or partially copy-protected.
Claim 27
Dependent Claim
91 words
Method of processing a high definition video signal having copy-prevention information included therein, comprising the steps of: receiving a digital high definition video signal having copy-prevention information therein; extracting the copy-prevention information from the digital high definition video signal; generating from the extracted copy-prevention information an analog copy-inhibit signal having a data format of another copy-inhibit signal superimposed on a standard definition video signal; converting the digital high definition video signal to an analog high definition video signal; and adding the analog copy-inhibit signal to the analog high definition video signal.
Claim 28
Dependent Claim
91 words
Method of processing a high definition video signal having copy-prevention information included therein, comprising the steps of: receiving a digital high definition video signal having copy-prevention information therein; extracting the copy-prevention information from the digital high definition video signal; generating from the extracted copy-prevention information an analog copy-inhibit signal having a data format of another copy-inhibit signal superimposed on a standard definition video signal; converting the digital high definition video signal to an analog high definition video signal; and adding the analog copy-inhibit signal to the analog high definition video signal.
Claim 29
Dependent Claim
34 words
The method of claim 23, wherein said adding step is carried out by superimposing said analog copy-inhibit signal onto said analog high definition video signal to produce a superimposed analog high definition video signal.
Claim 30
Dependent Claim
51 words
The method of claim 23, wherein the digital high definition video signal includes video data, audio data and system data, said system data including said copy-prevention information; and said extracting step is carried out by extracting said copy-prevention information from said system data included in said digital high definition video signal.
Claim 31
Dependent Claim
52 words
The method of claim 23, wherein said digital high definition video signal includes video image data, video auxiliary data, audio sound data and audio auxiliary data; and said extracting step is carried out by extracting said copy-prevention information from at least one of said video auxiliary data and said audio auxiliary data.
Claim 32
Dependent Claim
26 words
The method of claim 26, wherein said video auxiliary data and said audio auxiliary data are comprised of packs of data having a common pack structure.
Claim 33
Dependent Claim
29 words
The method of claim 23, wherein said adding step is carried out by adding said analog copy-inhibit signal to a vertical blanking interval of said high definition video signal.
Claim 34
Dependent Claim
42 words
The method of claim 23, further comprising the step of providing said digital high definition video signal without said copy-prevention information as an additional signal; and said adding step is carried out by adding said analog copy-inhibit signal to said additional signal.
Claim 35
Dependent Claim
25 words
The method of claim 23, wherein said copy-prevention information identifies whether said digital high definition video signal is fully copy-protected, partially copy-protected, or not copy-protected.
Claim 36
Dependent Claim
21 words
The method of claim 23, further comprising the step of reproducing said digital high definition video signal from a record medium.
Claim 37
Dependent Claim
144 words
Method of processing an analog high definition video signal having a copy-inhibit signal superimposed thereon, comprising the steps of: extracting from said analog high definition video signal a copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of another copy-inhibit signal superimposed on a standard definition video signal; supplying said analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies said analog high definition video signal as not copy-protected; generating from the extracted copy-inhibit signal digital copy-prevention data having a data format different than the data format of said copy-inhibit signal; converting the supplied high definition video signal to a digital high definition video signal; and combining said digital copy-prevention data and said digital high definition digital video signal to produce an output high definition video signal.
Claim 38
Dependent Claim
144 words
Method of processing an analog high definition video signal having a copy-inhibit signal superimposed thereon, comprising the steps of: extracting from said analog high definition video signal a copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected and having a data format of another copy-inhibit signal superimposed on a standard definition video signal; supplying said analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies said analog high definition video signal as not copy-protected; generating from the extracted copy-inhibit signal digital copy-prevention data having a data format different than the data format of said copy-inhibit signal; converting the supplied high definition video signal to a digital high definition video signal; and combining said digital copy-prevention data and said digital high definition digital video signal to produce an output high definition video signal.
Claim 39
Dependent Claim
21 words
The method of claim 32, further comprising the step of recording the output high definition video signal on a record medium.
Claim 40
Dependent Claim
33 words
The method of claim 32, wherein said combining step is carried out by combining said digital copy-prevention data to said digital high definition video signal to produce said output high definition video signal.
Claim 41
Dependent Claim
24 words
The method of claim 32, wherein said copy-inhibit signal is superimposed on said analog high definition video signal in a vertical blanking interval thereof.
Claim 42
Dependent Claim
76 words
The method of claim 32, wherein said generating step is carried out by generating digital video auxiliary data and digital audio auxiliary data; said digital copy-prevention data being included in at least one of said digital video auxiliary data and said digital audio auxiliary data; and said combining step is carried out by combining said digital video and audio auxiliary data and said digital high definition video signal to produce said output high definition video signal.
Claim 43
Dependent Claim
29 words
The method of claim 36, wherein said digital video auxiliary data and said digital audio auxiliary data each is comprised of packs of data having a common pack structure.
Claim 44
Dependent Claim
62 words
The method of claim 32, wherein said copy-inhibit signal identifies said analog high definition video signal as fully copy-protected, partially copy-protected, or not copy-protected; and said supplying step is carried out by supplying said high definition video signal as said supplied high definition video signal when said copy-inhibit signal identifies said high definition video signal as either partially copy-protected or not copy-protected.
Claim 45
Dependent Claim
43 words
The method of claim 38, wherein said generating step is carried out by generating digital copy-prevention data indicating said output high definition video signal as copy-protected when said copy-inhibit signal identifies said analog high definition video signal as either copy-protected or partially copy-protected.
Claim 46
Dependent Claim
105 words
Method of reproducing from a record medium a digital high definition video signal having digital copy-prevention data therein, comprising the steps of: reproducing said digital high definition video signal from said record medium; extracting digital copy-prevention data from the reproduced digital high definition video signal; generating from said extracted digital copy-prevention data an analog copy-inhibit signal having a data format of a copy-inhibit signal superimposed on a standard definition video signal; converting the reproduced digital high definition video signal to an analog high definition video signal; and superimposing said analog copy-inhibit signal onto said analog high definition video signal to produce an analog output signal.
Claim 47
Dependent Claim
105 words
Method of reproducing from a record medium a digital high definition video signal having digital copy-prevention data therein, comprising the steps of: reproducing said digital high definition video signal from said record medium; extracting digital copy-prevention data from the reproduced digital high definition video signal; generating from said extracted digital copy-prevention data an analog copy-inhibit signal having a data format of a copy-inhibit signal superimposed on a standard definition video signal; converting the reproduced digital high definition video signal to an analog high definition video signal; and superimposing said analog copy-inhibit signal onto said analog high definition video signal to produce an analog output signal.
Claim 48
Dependent Claim
33 words
The method of claim 40, wherein said converting step is carried out by converting the reproduced digital high definition video signal without said digital copy-prevention data to said analog high definition video signal.
Claim 49
Dependent Claim
153 words
Method of recording a digital high definition video signal on a record medium, comprising: receiving an analog high definition video having a copy-inhibit signal superimposed thereon, said copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected, and having a data format of a copy-inhibit signal superimposed on a standard definition video signal; extracting said copy-inhibit signal from the received analog high definition video signal; supplying the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as not copy-protected; converting the supplied high definition video signal to a digital high definition video signal; generating from said extracted copy-inhibit signal digital copy-prevention data; adding said digital copy-prevention data to the digital high definition video signal; and recording the digital high definition video signal having said digital copy-prevention data added thereto on a record medium.
Claim 50
Dependent Claim
153 words
Method of recording a digital high definition video signal on a record medium, comprising: receiving an analog high definition video having a copy-inhibit signal superimposed thereon, said copy-inhibit signal identifying said analog high definition video signal as copy-protected or not copy-protected, and having a data format of a copy-inhibit signal superimposed on a standard definition video signal; extracting said copy-inhibit signal from the received analog high definition video signal; supplying the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as not copy-protected; converting the supplied high definition video signal to a digital high definition video signal; generating from said extracted copy-inhibit signal digital copy-prevention data; adding said digital copy-prevention data to the digital high definition video signal; and recording the digital high definition video signal having said digital copy-prevention data added thereto on a record medium.
Claim 51
Dependent Claim
68 words
The method of claim 42, wherein said copy-inhibit signal identifies the received analog high definition video signal as either fully copy-protected, partially copy-protected, or not copy-protected; and said supplying step is carried out by supplying the received analog high definition video signal as a supplied high definition video signal when said copy-inhibit signal identifies the received analog high definition video signal as either partially copy-protected or not copy-protected.
Claim 52
Dependent Claim
50 words
The method of claim 43, wherein said step of generating is carried out by generating from said extracted copy-inhibit signal digital copy-prevention data indicating the digital high definition video signal as copy-protected when said copy-inhibit signal identifies the received analog high definition video signal as either copy-protected or partially copy-protected.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-07-06 | 2002-01-05 | 2002-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-07-06 | 2006-01-05 | 2006-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-07-06 | 2010-01-05 | 2010-07-07 | $7700.00 | Window Closed / Lapsed |