US6519288B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-layer scaleable decoder and method of decoding
Assignee: Mitsubishi Electric Research Laboratories Inc
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Filing: 1998-03-06
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Granted: 2003-02-11
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Expires: 2018-03-06
Abstract
Abstract The apparatus for decoding a digital signal includes a composite picture forming unit for forming a composite picture from a first digital video signal and a second digital video signal. The first digital video signal includes inter-coded picture data. A down-converter receives a third digital video signal, and outputs the third digital video signal to the composite picture forming unit as the first digital signal in a first mode. However, the down-converter down-converts the third digital video signal into a fourth digital video signal in a second mode, and outputs the fourth digital video signal to the composite picture forming unit in the second mode. A memory stores the anchor pictures output from the composite picture forming unit, and a motion compensator generates the second digital signal based on the stored anchor pictures.
Inventors
- 👤 Anthony Vetro
- 👤 Huifang Sun
- 👤 Tommy Poon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:00
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/50; H04N19/59
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
151 words
An apparatus for decoding a digital signal, comprising: composite picture former for forming a composite picture from a first digital video signal and a second digital video signal, said first digital video signal including inter-coded picture data; down-converter for receiving a digital video signal, down-converting said digital video signal, and outputting said down-converted digital video signal to said composite picture former as said first digital video signal; a memory for storing an anchor picture output from said composite picture former; up-converter for receiving said stored anchor picture, and up-converting said stored anchor picture; and motion compensator for generating said second digital video signal based on said up-converted anchor picture; wherein said down-converter utilizes a down-conversion filter matrix to down-convert said digital video signal, and wherein said up-converter utilizes an up-conversion filter matrix to up-convert said stored anchor picture, said up-conversion filter matrix being a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 2
Independent Claim
151 words
An apparatus for decoding a digital signal, comprising: composite picture former for forming a composite picture from a first digital video signal and a second digital video signal, said first digital video signal including inter-coded picture data; down-converter for receiving a digital video signal, down-converting said digital video signal, and outputting said down-converted digital video signal to said composite picture former as said first digital video signal; a memory for storing an anchor picture output from said composite picture former; up-converter for receiving said stored anchor picture, and up-converting said stored anchor picture; and motion compensator for generating said second digital video signal based on said up-converted anchor picture; wherein said down-converter utilizes a down-conversion filter matrix to down-convert said digital video signal, and wherein said up-converter utilizes an up-conversion filter matrix to up-convert said stored anchor picture, said up-conversion filter matrix being a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 3
Independent Claim
97 words
A method for decoding a digital signal, comprising: forming a composite picture from a first digital video signal and a second digital video signal, said first digital video signal including inter-coded picture data; down-converting a digital video to generate the first video signal; storing an anchor picture output; up-converting said stored anchor picture; and motion compensating said up-converted anchor picture to generate said second digital video signal; wherein a down-conversion filter matrix performs said down-converting, and wherein an up-conversion filter matrix performs said up-converting, said up-conversion filter matrix being a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 4
Independent Claim
97 words
A method for decoding a digital signal, comprising: forming a composite picture from a first digital video signal and a second digital video signal, said first digital video signal including inter-coded picture data; down-converting a digital video to generate the first video signal; storing an anchor picture output; up-converting said stored anchor picture; and motion compensating said up-converted anchor picture to generate said second digital video signal; wherein a down-conversion filter matrix performs said down-converting, and wherein an up-conversion filter matrix performs said up-converting, said up-conversion filter matrix being a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 5
Independent Claim
107 words
An apparatus for decoding a digital signal comprising: down-converting means for down-converting a digital video signal into a down-converted digital video signal, said down-converting means utilizing a down-conversion filter matrix to down-convert said digital video signal; a memory for storing anchor pictures which represent said down-converted digital video signal, and for outputting a digital anchor picture signal; and up-converting means for receiving said digital anchor picture signal, and for up-converting said digital anchor picture signal to generate an up-converted digital video signal, said up-converting means utilizing an up-conversion filter matrix to up-convert said digital anchor picture signal which is a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 6
Independent Claim
107 words
An apparatus for decoding a digital signal comprising: down-converting means for down-converting a digital video signal into a down-converted digital video signal, said down-converting means utilizing a down-conversion filter matrix to down-convert said digital video signal; a memory for storing anchor pictures which represent said down-converted digital video signal, and for outputting a digital anchor picture signal; and up-converting means for receiving said digital anchor picture signal, and for up-converting said digital anchor picture signal to generate an up-converted digital video signal, said up-converting means utilizing an up-conversion filter matrix to up-convert said digital anchor picture signal which is a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 7
Independent Claim
89 words
A method for decoding a digital video signal, comprising: down-converting a digital video signal into a down-converted digital video signal, said down-converting being performed with a down-conversion filter matrix; storing digital anchor pictures which represent said down-converted digital video signal in a memory; outputting a digital anchor picture signal from said memory; up-converting said digital anchor picture signal to generate an up-converted digital video signal, said up-converting utilizing an up-conversion filter matrix to up-convert said digital anchor picture signal which is a Moore-Penrose inverse of said down-conversion filter matrix.
Claim 8
Independent Claim
89 words
A method for decoding a digital video signal, comprising: down-converting a digital video signal into a down-converted digital video signal, said down-converting being performed with a down-conversion filter matrix; storing digital anchor pictures which represent said down-converted digital video signal in a memory; outputting a digital anchor picture signal from said memory; up-converting said digital anchor picture signal to generate an up-converted digital video signal, said up-converting utilizing an up-conversion filter matrix to up-convert said digital anchor picture signal which is a Moore-Penrose inverse of said down-conversion filter matrix.
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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) | 2006-02-10 | 2006-08-12 | 2007-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-10 | 2010-08-12 | 2011-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-10 | 2014-08-12 | 2015-02-11 | $7700.00 | Window Closed / Lapsed |