DE69944788C5 - Verlustfreie kodierung/dekodierung in einem übertragungssystem - Google Patents
Verlustfreie kodierung/dekodierung in einem übertragungssystem Download PDFInfo
- Publication number
- DE69944788C5 DE69944788C5 DE69944788.7A DE69944788A DE69944788C5 DE 69944788 C5 DE69944788 C5 DE 69944788C5 DE 69944788 A DE69944788 A DE 69944788A DE 69944788 C5 DE69944788 C5 DE 69944788C5
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- signal
- residue
- lossy
- encoded
- lossless
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- 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
- 230000005540 biological transmission Effects 0.000 title description 45
- 238000000034 method Methods 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Description
- Betreffend das europäische Patent
0 993 733 (DE 699 44 788 ) hat der 6. Senat (Nichtigkeitssenat) des Bundespatentgerichts auf Grund der mündlichen Verhandlung vom 15. Januar 2021 für Recht erkannt: - I. Auf die Klage wird das Europäische Patent
0 993 733 mit Wirkung für das Hoheitsgebiet der Bundesrepublik Deutschland teilweise für nichtig erklärt, soweit es über folgende Fassung hinausgeht:- 1. A transmitting device for lossless transmitting a digital audio information signal via a transmission medium, comprising:
- - a lossy encoder (6) adapted to compress the digital audio information signal to a lossy encoded signal, the lossy encoder (6) being configured as a filter bank encoder performing subband encoding or transform encoding,
- - a lossy decoder (12) adapted to expand the lossy encoded signal so as to obtain a replica of the digital audio information signal, the lossy decoder (12) being configured as a filter bank decoder performing subband decoding or transform decoding,
- - a first signal combination unit (16) adapted to combine the digital audio information signal and the replica to a first residue signal,
- - a lossless encoder (26) adapted to compress the first residue signal to a lossless encoded residue signal,
- - a second signal combination unit (30) adapted to combine the lossy encoded signal and the lossless encoded residue signal to a transmission signal for the transmission via the transmission medium,
characterized in that the lossless encoder comprises
- - a prediction filter (38) for deriving a prediction signal from the first residue signal,
- - a signal combination unit (42) for combining the prediction signal and the first residue signal so as to obtain a second residue signal,
- - an entropy encoder (44) for encoding the second residue signal to the lossless encoded residue signal.
- 2. A transmitting device as claimed in Claim 1, characterized in that the entropy encoder (44) takes the form of a Huffman encoder.
- 3. A transmitting device as claimed in Claim 1, characterized in that the prediction filter (38) is an adaptive filter, which calculates coefficients for which the energy content of the second residue signal is minimal.
- 4. A device for recording a transmission signal on a record carrier, said device comprising a transmitting device according to any of claims 1 to 3, and means for recording the transmission signal on the record carrier.
- 5. A device as claimed in Claim 4, characterized in that the transmitting device includes an error correction encoding unit (502) and/or a channel encoding unit (504).
- 6. A receiving device for lossless receiving a transmission signal which contains a lossy encoded signal and a lossless encoded residue signal, wherein the lossy encoded signal is encoded by a lossy encoder configured as a filter bank encoder performing subband encoding or transform encoding, the receiving device comprising:
- - receiving means (60) for receiving the transmission signal from the transmission medium,
- - demultiplexing means (62) for extracting the lossy encoded signal and the lossless encoded residue signal from the transmission signal,
- - a lossy decoder (70) adapted to expand the lossy encoded signal to a replica of a digital audio information signal, the lossy decoder (12) being configured as a filter bank decoder performing subband decoding or transform decoding,
- - a lossless decoder (78) adapted to expand the lossless encoded residue signal to a first residue signal,
- - a signal combination unit (82) adapted to combine the replica of the digital audio information signal and the first residue signal to the digital audio information signal, characterized in that the lossless decoder comprises
- - an entropy decoder (92) for decoding the lossless encoded residue signal into a second residue signal,
- - a signal combination unit (94) for combining the second residue signal and a prediction signal to the first residue signal,
- - a prediction filter (96) for processing the second residue signal so as to form the prediction signal.
- 7. A receiving device as claimed in Claim 6, characterized in that the entropy decoder (92) takes the form of a Huffman decoder.
- 8. A device for reproducing a transmission signal recorded on a record carrier, said device comprising a receiving device according to any claims 6 to 7, and means for reproducing the transmission signal recorded on the record carrier.
- 9. A device as claimed in Claim 8, characterized in that the device includes a channel decoding unit (606) and/or an error correction unit (608).
- 10. A method of lossless transmitting a digital audio information signal via a transmission medium, comprising the steps of:
- - receiving the digital audio information signal,
- - compressing the digital audio information signal in a lossy fashion so as to form a lossy encoded signal, the digital audio information signal being compressed in a lossy encoder configured as a filter bank encoder performing subband encoding or transform encoding,
- - expanding the lossy encoded signal to a replica of the digital audio information signal in a lossy decoder (12) configured as a filter bank decoder performing subband decoding or transform decoding,
- - combining the digital audio information signal and the replica of the digital audio information signal to a first residue signal,
- - compressing the first residue signal in a lossless fashion so as to form a lossless encoded residue signal,
- - combining the lossy encoded signal and the lossless encoded residue signal to a transmission signal for the transmission via the transmission medium, characterized in that the lossless compression comprises the following steps:
- - deriving a prediction signal from the first residue signal,
- - combining the prediction signal and the first residue signal so as to obtain a second residue signal,
- - encoding the second residue signal to the lossless encoded residue signal.
- 11. A method of transmitting a digital audio information signal via a transmission medium, as claimed in Claim 10, characterized in that the prediction signal is derived from the first residue signal.
- 12. A method as claimed in Claim 10 or 11, in which the transmission signal is stored on a record carrier.
- 13. A record carrier carrying a transmission signal obtainable by means of a method as claimed in Claim 10 or a transmitting device as claimed in Claim 1, wherein the transmission signal has been obtained by combining a lossy encoded signal and a lossless encoded residue signal, the lossy encoded signal being obtained by compressing a digital audio information signal in a lossy fashion so as to form a lossy encoded signal, the digital audio information signal being compressed in a lossy encoder configured as a filter bank encoder performing subband encoding or transform encoding, the lossless encoded residue signal being obtained by encoding a second residue signal, the second residue signal being obtained by combining a prediction signal and a first residue signal, the prediction signal being derived from the first residue signal, the first residue signal being obtained by combining the digital audio information signal and the replica of the digital audio information signal, and the replica of the digital audio information signal being obtained by expanding the lossy encoded signal in a lossy decoder (12) configured as a filter bank decoder performing subband decoding or transform decoding.
- 14. An apparatus including a device for recording a transmission signal on a record carrier as claimed in Claim 4 and a device for reproducing the transmission signal recorded on the record carrier as claimed in Claim 8.
- 1. A transmitting device for lossless transmitting a digital audio information signal via a transmission medium, comprising:
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98201142 | 1998-04-09 | ||
EP98201142 | 1998-04-09 | ||
PCT/IB1999/000565 WO1999053677A2 (en) | 1998-04-09 | 1999-04-01 | Lossless encoding/decoding in a transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69944788C5 true DE69944788C5 (de) | 2023-10-19 |
Family
ID=8233586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69944788.7A Expired - Lifetime DE69944788C5 (de) | 1998-04-09 | 1999-04-01 | Verlustfreie kodierung/dekodierung in einem übertragungssystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US6498811B1 (de) |
EP (1) | EP0993733B1 (de) |
JP (1) | JP4267084B2 (de) |
CN (1) | CN100350749C (de) |
DE (1) | DE69944788C5 (de) |
WO (1) | WO1999053677A2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100743534B1 (ko) * | 2000-01-07 | 2007-07-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 디지털 정보를 전송하는 전송장치 및 전송방법 |
JP2002229599A (ja) * | 2001-02-02 | 2002-08-16 | Nec Corp | 音声符号列の変換装置および変換方法 |
US7630563B2 (en) * | 2001-07-19 | 2009-12-08 | Qualcomm Incorporated | System and method for decoding digital image and audio data in a lossless manner |
US7200561B2 (en) * | 2001-08-23 | 2007-04-03 | Nippon Telegraph And Telephone Corporation | Digital signal coding and decoding methods and apparatuses and programs therefor |
KR100908114B1 (ko) * | 2002-03-09 | 2009-07-16 | 삼성전자주식회사 | 스케일러블 무손실 오디오 부호화/복호화 장치 및 그 방법 |
JP2003280694A (ja) | 2002-03-26 | 2003-10-02 | Nec Corp | 階層ロスレス符号化復号方法、階層ロスレス符号化方法、階層ロスレス復号方法及びその装置並びにプログラム |
DE10252070B4 (de) * | 2002-11-08 | 2010-07-15 | Palm, Inc. (n.d.Ges. d. Staates Delaware), Sunnyvale | Kommunikationsendgerät mit parametrierter Bandbreitenerweiterung und Verfahren zur Bandbreitenerweiterung dafür |
US7949520B2 (en) * | 2004-10-26 | 2011-05-24 | QNX Software Sytems Co. | Adaptive filter pitch extraction |
US8543390B2 (en) | 2004-10-26 | 2013-09-24 | Qnx Software Systems Limited | Multi-channel periodic signal enhancement system |
KR101246915B1 (ko) * | 2005-04-18 | 2013-03-25 | 삼성전자주식회사 | 동영상 부호화 또는 복호화 방법 및 장치 |
KR100723505B1 (ko) * | 2005-10-06 | 2007-05-30 | 삼성전자주식회사 | 하이브리드 방식의 영상 데이터 처리 시스템 및 영상데이터 처리 방법 |
WO2007099480A2 (en) * | 2006-03-03 | 2007-09-07 | Koninklijke Philips Electronics N.V. | Differential coding with lossy embedded compression |
EP1852848A1 (de) * | 2006-05-05 | 2007-11-07 | Deutsche Thomson-Brandt GmbH | Verfahren und Vorrichtung für verlustfreie Kodierung eines Quellensignals unter Verwendung eines verlustbehafteten kodierten Datenstroms und eines verlustfreien Erweiterungsdatenstroms |
EP1852849A1 (de) * | 2006-05-05 | 2007-11-07 | Deutsche Thomson-Brandt Gmbh | Verfahren und Vorrichtung für verlustfreie Kodierung eines Quellensignals unter Verwendung eines verlustbehafteten kodierten Datenstroms und eines verlustfreien Erweiterungsdatenstroms |
US9679602B2 (en) | 2006-06-14 | 2017-06-13 | Seagate Technology Llc | Disc drive circuitry swap |
EP1881485A1 (de) | 2006-07-18 | 2008-01-23 | Deutsche Thomson-Brandt Gmbh | Audiobitstromdatenstruktur eines verlustbehafteten kodierten Signals mit verlustfreien Erweiterungkodierungsdaten für ein solches Signal. |
DE102006051673A1 (de) | 2006-11-02 | 2008-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale |
US9305590B2 (en) | 2007-10-16 | 2016-04-05 | Seagate Technology Llc | Prevent data storage device circuitry swap |
KR20110015356A (ko) * | 2009-08-07 | 2011-02-15 | 한국전자통신연구원 | 차분 신호의 특성에 기반한 적응적인 변환 부호화/양자화 영역을 이용한 동영상 부호화/복호화 장치 및 그 방법 |
EP2395505A1 (de) | 2010-06-11 | 2011-12-14 | Thomson Licensing | Verfahren und Vorrichtung zum Suchen in einem geschichteten hierarchischen Bitstrom und darauffolgende Wiedergabe, besagter Bitstrom mit einer Basisschicht und mindestens einer Erweiterungsschicht |
WO2013006322A1 (en) * | 2011-07-01 | 2013-01-10 | Dolby Laboratories Licensing Corporation | Sample rate scalable lossless audio coding |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4903317A (en) * | 1986-06-24 | 1990-02-20 | Kabushiki Kaisha Toshiba | Image processing apparatus |
SE454829B (sv) * | 1986-11-13 | 1988-05-30 | Ericsson Telefon Ab L M | Sett och anordning for reversibel kompression av informationsberande symboler, samt sett och anordning for att rekonstruera en sekvens av informationsberande symboler som har komprimerats enligt ovan nemnda sett |
US5541594A (en) * | 1994-03-28 | 1996-07-30 | Utah State University Foundation | Fixed quality source coder with fixed threshold |
JPH08242455A (ja) * | 1994-11-03 | 1996-09-17 | Eastman Kodak Co | デジタル画像処理装置及びその方法、デジタル画像処理システム |
JP3749752B2 (ja) * | 1995-03-24 | 2006-03-01 | アイティーティー・マニュファクチャリング・エンタープライジズ・インコーポレーテッド | ブロック適応型差分パルスコード変調システム |
US5680129A (en) * | 1995-07-18 | 1997-10-21 | Hewlett-Packard Company | System and method for lossless image compression |
GB2305277A (en) * | 1995-09-15 | 1997-04-02 | Hewlett Packard Co | A lossy data compression method |
-
1999
- 1999-04-01 DE DE69944788.7A patent/DE69944788C5/de not_active Expired - Lifetime
- 1999-04-01 WO PCT/IB1999/000565 patent/WO1999053677A2/en active Application Filing
- 1999-04-01 EP EP99909137.4A patent/EP0993733B1/de not_active Expired - Lifetime
- 1999-04-01 JP JP55139499A patent/JP4267084B2/ja not_active Expired - Lifetime
- 1999-04-01 CN CNB998004022A patent/CN100350749C/zh not_active Expired - Lifetime
- 1999-04-07 US US09/287,426 patent/US6498811B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1262815A (zh) | 2000-08-09 |
US6498811B1 (en) | 2002-12-24 |
WO1999053677A2 (en) | 1999-10-21 |
CN100350749C (zh) | 2007-11-21 |
JP2002504294A (ja) | 2002-02-05 |
JP4267084B2 (ja) | 2009-05-27 |
EP0993733B1 (de) | 2013-06-19 |
WO1999053677A3 (en) | 2000-01-06 |
EP0993733A2 (de) | 2000-04-19 |
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