Patent US5473380A successfully refreshed from Google Patents.
US5473380A
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Picture signal transmitting method and apparatus
Assignee: Sony Corp
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Filing: 1994-03-29
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Granted: 1995-12-05
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Expires: 2014-03-29
Abstract
Abstract A picture type identifier, indicating one of intra-picture coding (an I-picture), forward or backward predictive coding (a P-picture) and bi-directionally predictive coding (a B-picture), is included with a picture signal when the signal is encoded and when the signal is decoded. Each of initial and subsequent encoding and decoding is a function of the included picture type.
Inventors
- 👤 Katsumi Tahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:09
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/20; H04N21/23; H04N21/236; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; H04N9/8047; H04N19/00; H04N19/10; H04N19/134; H04N19/157; H04N19/159; H04N19/40; H04N19/46; H04N19/60; H04N19/61; H04N21/23614; H04N21/40; H04N21/43; H04N21/434; H04N21/4348; H04N7/00; H04N7/14; H04N7/24; H04N7/52; H04N7/54
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
72 words
An apparatus for processing a picture signal that had been previously coded, comprising: means for receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal; and coding means for encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
Claim 2
Independent Claim
72 words
An apparatus for processing a picture signal that had been previously coded, comprising: means for receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal; and coding means for encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1, wherein said means for receiving includes means for separating said picture type signal from said picture signal.
Claim 4
Dependent Claim
22 words
The apparatus of claim 1, further comprising means for decoding said encoded picture signal as a function of said picture type signal.
Claim 5
Dependent Claim
13 words
The apparatus of claim 1, wherein said picture signal is a digital signal.
Claim 6
Dependent Claim
79 words
The apparatus of claim 1, wherein said coding means includes motion vector detection means for detecting motion vectors between said pictures represented by said picture signal as a function of said picture type signal; predictive judging means for choosing one of intra-coding, forward predictive coding, backward predictive coding and bi-directionally predictive coding macro-block by macro-block as a function of said picture type signal; and variable length coding means for encoding said picture type signal in said encoded picture signal.
Claim 7
Independent Claim
59 words
An apparatus for processing an encoded picture signal, comprising: means for decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal; and means for multiplexing said picture type signal and said decoded picture signal to produce an output signal.
Claim 8
Independent Claim
59 words
An apparatus for processing an encoded picture signal, comprising: means for decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal; and means for multiplexing said picture type signal and said decoded picture signal to produce an output signal.
Claim 9
Dependent Claim
38 words
The apparatus of claim 6, wherein each picture of said decoded picture signal includes a vertical blanking interval; and said means for multiplexing inserts said picture type signal into the vertical blanking intervals of said decoded picture signal.
Claim 10
Dependent Claim
22 words
The apparatus of claim 6, further comprising means for encoding said decoded picture signal as a function of said picture type signal.
Claim 11
Dependent Claim
14 words
The apparatus of claim 6, wherein said decoded picture signal is a digital signal.
Claim 12
Dependent Claim
40 words
The apparatus of claim 6, wherein said means for decoding includes variable length decoding means for separating said picture type signal from said output signal and wherein said means for multiplexing is operative to multiplex the separated picture type signal.
Claim 13
Independent Claim
70 words
A method for processing a picture signal that had been previously coded, comprising the steps of: receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal; and encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
Claim 14
Independent Claim
70 words
A method for processing a picture signal that had been previously coded, comprising the steps of: receiving a picture type signal included in said picture signal indicating one of intra-picture coding, predictive coding and bi-directionally predictive coding representing the previous types of coding for respective pictures represented by said picture signal; and encoding said picture signal as a function of said picture type signal to produce an encoded picture signal.
Claim 15
Dependent Claim
20 words
The method of claim 11, wherein the step of receiving includes separating said picture type signal from said picture signal.
Claim 16
Dependent Claim
23 words
The method of claim 11, further comprising a step of decoding said encoded picture signal as a function of said picture type signal.
Claim 17
Dependent Claim
13 words
The method of claim 11, wherein said picture signal is a digital signal.
Claim 18
Dependent Claim
66 words
The method of claim 11, wherein the step of encoding includes detecting motion vectors between said pictures represented by said picture signal as a function of said picture type signal; choosing one of intra-coding, forward predictive coding, backward predictive coding and bi-directionally predictive coding macro-block by macro-block as a function of said picture type signal; and encoding said picture type signal in said encoded picture signal.
Claim 19
Independent Claim
55 words
A method for processing an encoded picture signal, comprising: decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal; and multiplexing said picture type signal and said decoded picture signal to produce an output signal.
Claim 20
Independent Claim
55 words
A method for processing an encoded picture signal, comprising: decoding said encoded picture signal to produce a picture type signal and a decoded picture signal, said picture type signal representing a type of encoding of said encoded picture signal; and multiplexing said picture type signal and said decoded picture signal to produce an output signal.
Claim 21
Dependent Claim
38 words
The method of claim 16, wherein each picture of said decoded picture signal includes a vertical blanking interval; and the step of multiplexing inserts said picture type signal into the vertical blanking intervals of said decoded picture signal.
Claim 22
Dependent Claim
23 words
The method of claim 16, further comprising a step of encoding said decoded picture signal as a function of said picture type signal.
Claim 23
Dependent Claim
14 words
The method of claim 16, wherein said decoded picture signal is a digital signal.
Claim 24
Dependent Claim
32 words
The method of claim 16, wherein the step of decoding includes separating said picture type signal from said output signal and wherein the step of multiplexing multiplexes the separated picture type signal.
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) | 1998-12-04 | 1999-06-05 | 1999-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-04 | 2003-06-05 | 2003-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-04 | 2007-06-05 | 2007-12-05 | $7700.00 | Window Closed / Lapsed |