US5535275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for producing scrambled digital video signals
Assignee: Sony Corp
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Filing: 1994-06-21
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Granted: 1996-07-09
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Expires: 2014-06-21
Abstract
Abstract Unauthorized copying of a video signal is prevented by means of a compression encoding circuit that selectively applies scrambling to the encoded signal. The compression encoding circuit is of the type which divides frames of a digital video signal into rectangular data blocks, aggregates a predetermined number of data blocks to form macroblocks, shuffles the macroblocks within the video frame, and performs discrete cosine transform processing block-by-block on the rectangular data blocks making up the shuffled macroblocks. The scrambling may be accomplished by rearranging the order of the rectangular data blocks within each macroblock, or by changing the pattern according to which macroblocks are shuffled in the video frames. The scrambling may also be accomplished by interchanging bits in a component, such as the DC component, of the DCT-processed data, or by setting such data bits to predetermined values. A compression encoding circuit with the above-described scrambling capability may be used in a digital video tape recorder (VTR), and the scrambling capability may be activated in response to a copyright protection signal present in an analog video signal supplied as an input to the digital VTR.
Inventors
- 👤 Kiminori Sugisaki
- 👤 Keiji Kanota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:37
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/167; H04N5/00; H04N5/76; H04N5/91; H04N5/913; H04N7/24; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N9/8047; H04N2005/91357; H04N2005/91364
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
109 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 2
Dependent Claim
109 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 3
Dependent Claim
113 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said block of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 4
Dependent Claim
113 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said block of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 5
Dependent Claim
185 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit interchanges at least some bits of a particular component of said discrete cosine transform processed data,
Claim 6
Dependent Claim
185 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit interchanges at least some bits of a particular component of said discrete cosine transform processed data,
Claim 7
Dependent Claim
42 words
A video signal scrambling apparatus according to claim 3, wherein said signal decoder decodes said copy protection information included in said input analog video signal after said input analog video signal is converted into said digital video signal by said analog-to-digital converter.
Claim 8
Dependent Claim
189 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit sets to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 9
Dependent Claim
189 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit sets to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 10
Dependent Claim
42 words
A video signal scrambling apparatus according to claim 5, wherein said signal decoder decodes said copy protection information included in said input analog video signal after said input analog video signal is converted into said digital video signal by said analog-to-digital converter.
Claim 11
Dependent Claim
42 words
A video signal scrambling circuit according to claim 5, wherein said signal decoder decodes said copy protection information included in said input analog video signal after said input analog video signal is converted into said digital video signal by said analog-to-digital converter.
Claim 12
Dependent Claim
185 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit interchanges at least some bits of a particular component of said discrete cosine transform processed data.
Claim 13
Dependent Claim
185 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit interchanges at least some bits of a particular component of said discrete cosine transform processed data.
Claim 14
Dependent Claim
42 words
A video signal scrambling circuit according to claim 3, wherein said signal decoder decodes said copy protection information included in said input analog video signal after said input analog video signal is converted into said digital video signal by said analog-to-digital converter.
Claim 15
Dependent Claim
189 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit sets to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 16
Dependent Claim
189 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copy protection information so that, if copying of said analog video signal is not permitted, said compression coding circuit sets to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 17
Dependent Claim
42 words
A video signal scrambling circuit according to claim 5, wherein said signal decoder decodes said copy protection information included in said input analog video signal after said input analog video signal is converted into said digital video signal by said analog-to-digital converter.
Claim 18
Dependent Claim
109 words
In an apparatus for compression-encoding a digital video signal, the apparatus including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising means for scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 19
Dependent Claim
109 words
In an apparatus for compression-encoding a digital video signal, the apparatus including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising means for scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 20
Dependent Claim
113 words
In an apparatus for compression-encoding a digital video signal, the apparatus including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising means for scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 21
Dependent Claim
113 words
In an apparatus for compression-encoding a digital video signal, the apparatus including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising means for scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 22
Dependent Claim
109 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 23
Dependent Claim
109 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by interchanging at least some bits of a particular component of said discrete cosine transform processed data.
Claim 24
Dependent Claim
113 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 25
Dependent Claim
113 words
In a method of recording a digital video signal with compression-encoding that includes dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks, the improvement comprising the step of scrambling said digital video signal by setting to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data.
Claim 26
Dependent Claim
219 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to interchange at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 27
Dependent Claim
219 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to interchange at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 28
Dependent Claim
223 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to set to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 29
Dependent Claim
223 words
A video signal scrambling apparatus comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to set to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 30
Dependent Claim
219 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to interchange at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 31
Dependent Claim
219 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to interchange at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 32
Dependent Claim
223 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to set to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
Claim 33
Dependent Claim
223 words
A video signal scrambling circuit comprising: an analog-to-digital converter for converting an input analog video signal into a digital video signal; a compression coding circuit including means for dividing each frame of said digital video signal into rectangular blocks of data, forming macroblocks from said rectangular blocks of data by aggregating a predetermined number of said blocks of data to form each of said macroblocks, shuffling positions of said macroblocks within said frame of the digital video signal, and performing discrete cosine transform processing block-by-block on said rectangular blocks of data making up said shuffled macroblocks to form compression-encoded data; a signal decoder for decoding copy protection information that is included in said input analog video signal and is indicative of whether copying of said input analog video signal is permitted; and control means responsive to said signal decoder for controlling said compression coding circuit in accordance with said decoded copyright protection information so that the rectangular blocks of data making up each macroblock are arranged according to a standard pattern within said macroblock if copying of said input analog video signal is permitted, and for controlling said compression coding circuit to set to a predetermined value at least some bits of a particular component of said discrete cosine transform processed data if copying of said input analog video signal is not permitted.
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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) | 1999-07-09 | 2000-01-08 | 2000-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-09 | 2004-01-08 | 2004-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-09 | 2008-01-08 | 2008-07-09 | $7700.00 | Window Closed / Lapsed |