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US6526175B2
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Apparatus and method for packetizing significance-based information
Assignee: Sharp Corp
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Filing: 1998-08-31
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Granted: 2003-02-25
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Expires: 2018-08-31
Abstract
Abstract An apparatus and a concomitant method for packetizing significance-based information to improve error resilience is disclosed. Significance-based information comprises "coefficient significance information". Within each packet, the "coefficient significance information" are coded first into a first or front portion of the packet and then the "coefficient values" are coded into a second or back portion of the packet.
Inventors
- 👤 Iraj Sodagar
- 👤 Bing-Bing Chai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:36
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/65; H04N19/68; H04N19/60; H04N19/63; H04N19/64; H04N19/647; H04N19/66; H04N19/85; H04N19/89
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
48 words
A data structure stored on a computer readable medium comprising: a packet header; and a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols and a second portion for carrying a plurality of coefficient values.
Claim 2
Dependent Claim
48 words
A data structure stored on a computer readable medium comprising: a packet header; and a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols and a second portion for carrying a plurality of coefficient values.
Claim 3
Dependent Claim
18 words
The data structure of claim 1 , wherein said first and second portions are separated by a marker.
Claim 4
Dependent Claim
34 words
The data structure of claim 1 , wherein said first portion further carries signs of said coefficient values of said second portion and said coefficient values of said second portion carry absolute coefficient values.
Claim 5
Dependent Claim
18 words
The data structure of claim 3 , wherein said first and second portions are separated by a marker.
Claim 6
Independent Claim
57 words
A method for packetizing a bitstream, said method comprising the steps of: a) generating a packet header; b) generating a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols; and c) inserting a plurality of coefficient values into a second portion of said payload.
Claim 7
Independent Claim
57 words
A method for packetizing a bitstream, said method comprising the steps of: a) generating a packet header; b) generating a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols; and c) inserting a plurality of coefficient values into a second portion of said payload.
Claim 8
Dependent Claim
20 words
The method of claim 5 , further comprising the step of inserting a marker between said first and second portions.
Claim 9
Dependent Claim
53 words
The method of claim 5 , wherein said generating step (b) generates said payload having said first portion for carrying said wavelet-based information and signs of said coefficient values of said second portion; and wherein said inserting coefficient values step (c) comprises the step of inserting absolute coefficient values into said second portion.
Claim 10
Dependent Claim
76 words
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform the steps comprising of: a) generating a packet header; b) generating a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols; and c) inserting a plurality of coefficient values into a second portion of said payload.
Claim 11
Dependent Claim
76 words
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform the steps comprising of: a) generating a packet header; b) generating a payload having a first portion for carrying wavelet-based information derived from applying a subband decomposition transformation comprising a plurality of zerotree symbols; and c) inserting a plurality of coefficient values into a second portion of said payload.
Claim 12
Independent Claim
83 words
An apparatus for encoding an input image, said apparatus comprising: means for encoding the input image into a bitstream, where said bitstream comprises wavelet-based information derived from applying a subband decomposition transformation and coefficient values; and means for packetizing said bitstream into at least one packet, where said packet comprises a packet header and a payload, wherein said payload has a first portion for carrying said wavelet-based information comprising a plurality of zerotree symbols and a second portion for carrying said coefficient values.
Claim 13
Independent Claim
83 words
An apparatus for encoding an input image, said apparatus comprising: means for encoding the input image into a bitstream, where said bitstream comprises wavelet-based information derived from applying a subband decomposition transformation and coefficient values; and means for packetizing said bitstream into at least one packet, where said packet comprises a packet header and a payload, wherein said payload has a first portion for carrying said wavelet-based information comprising a plurality of zerotree symbols and a second portion for carrying said coefficient values.
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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) | 2006-02-24 | 2006-08-26 | 2007-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-24 | 2010-08-26 | 2011-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-24 | 2014-08-26 | 2015-02-25 | $7700.00 | Window Closed / Lapsed |