DE69907267T2 - Entropie-code modenwechsel zur frequenzbereichsaudiokodierung - Google Patents
Entropie-code modenwechsel zur frequenzbereichsaudiokodierungInfo
- Publication number
- DE69907267T2 DE69907267T2 DE69907267T DE69907267T DE69907267T2 DE 69907267 T2 DE69907267 T2 DE 69907267T2 DE 69907267 T DE69907267 T DE 69907267T DE 69907267 T DE69907267 T DE 69907267T DE 69907267 T2 DE69907267 T2 DE 69907267T2
- Authority
- DE
- Germany
- Prior art keywords
- data
- encoded
- frequency ranges
- frequency
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M5/00—Conversion of the form of the representation of individual digits
- H03M5/02—Conversion to or from representation by pulses
- H03M5/04—Conversion to or from representation by pulses the pulses having two levels
- H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
- H03M5/145—Conversion to or from block codes or representations thereof
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
- H03M7/48—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind alternating with other codes during the code conversion process, e.g. run-length coding being performed only as long as sufficientlylong runs of digits of the same kind are present
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00007—Time or data compression or expansion
- G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/211,531 US6300888B1 (en) | 1998-12-14 | 1998-12-14 | Entrophy code mode switching for frequency-domain audio coding |
PCT/US1999/029109 WO2000036754A1 (en) | 1998-12-14 | 1999-12-07 | Entropy code mode switching for frequency-domain audio coding |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69907267D1 DE69907267D1 (de) | 2003-05-28 |
DE69907267T2 true DE69907267T2 (de) | 2003-11-06 |
Family
ID=22787314
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69935811T Expired - Lifetime DE69935811T3 (de) | 1998-12-14 | 1999-12-07 | Frequenzbereichsaudiodekodierung mit Entropie-code Moduswechsel |
DE69907267T Expired - Lifetime DE69907267T2 (de) | 1998-12-14 | 1999-12-07 | Entropie-code modenwechsel zur frequenzbereichsaudiokodierung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69935811T Expired - Lifetime DE69935811T3 (de) | 1998-12-14 | 1999-12-07 | Frequenzbereichsaudiodekodierung mit Entropie-code Moduswechsel |
Country Status (6)
Country | Link |
---|---|
US (1) | US6300888B1 (de) |
EP (3) | EP1330039B1 (de) |
JP (1) | JP4786796B2 (de) |
AT (2) | ATE359624T1 (de) |
DE (2) | DE69935811T3 (de) |
WO (1) | WO2000036754A1 (de) |
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1998
- 1998-12-14 US US09/211,531 patent/US6300888B1/en not_active Expired - Lifetime
-
1999
- 1999-12-07 EP EP03009178.9A patent/EP1330039B1/de not_active Expired - Lifetime
- 1999-12-07 DE DE69935811T patent/DE69935811T3/de not_active Expired - Lifetime
- 1999-12-07 AT AT03009177T patent/ATE359624T1/de not_active IP Right Cessation
- 1999-12-07 WO PCT/US1999/029109 patent/WO2000036754A1/en active IP Right Grant
- 1999-12-07 JP JP2000588902A patent/JP4786796B2/ja not_active Expired - Lifetime
- 1999-12-07 AT AT99966063T patent/ATE238632T1/de not_active IP Right Cessation
- 1999-12-07 EP EP03009177A patent/EP1330038B2/de not_active Expired - Lifetime
- 1999-12-07 DE DE69907267T patent/DE69907267T2/de not_active Expired - Lifetime
- 1999-12-07 EP EP99966063A patent/EP1142130B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
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EP1330038A1 (de) | 2003-07-23 |
DE69935811T2 (de) | 2007-08-16 |
DE69935811T3 (de) | 2012-08-16 |
ATE359624T1 (de) | 2007-05-15 |
EP1330038B2 (de) | 2012-06-13 |
DE69935811D1 (de) | 2007-05-24 |
EP1330039B1 (de) | 2013-04-10 |
EP1330039A1 (de) | 2003-07-23 |
ATE238632T1 (de) | 2003-05-15 |
EP1142130A1 (de) | 2001-10-10 |
EP1142130B1 (de) | 2003-04-23 |
WO2000036754A1 (en) | 2000-06-22 |
US6300888B1 (en) | 2001-10-09 |
EP1330038B1 (de) | 2007-04-11 |
JP4786796B2 (ja) | 2011-10-05 |
DE69907267D1 (de) | 2003-05-28 |
JP2002532765A (ja) | 2002-10-02 |
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