EP0609300A1 - Verfahren zum übertragen oder speichern eines aus einer folge von informationsblöcken bestehenden digitalisierten, encodierten tonsignals über störbehaftete kanäle. - Google Patents
Verfahren zum übertragen oder speichern eines aus einer folge von informationsblöcken bestehenden digitalisierten, encodierten tonsignals über störbehaftete kanäle.Info
- Publication number
- EP0609300A1 EP0609300A1 EP92921545A EP92921545A EP0609300A1 EP 0609300 A1 EP0609300 A1 EP 0609300A1 EP 92921545 A EP92921545 A EP 92921545A EP 92921545 A EP92921545 A EP 92921545A EP 0609300 A1 EP0609300 A1 EP 0609300A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- information
- units
- encoded
- error protection
- audio signal
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 14
- 230000003595 spectral effect Effects 0.000 claims abstract description 7
- 230000001419 dependent effect Effects 0.000 claims abstract 2
- 230000009466 transformation Effects 0.000 claims abstract 2
- 238000001514 detection method Methods 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. an encoded audio stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
Definitions
- the invention relates to a ner driving according to the preamble of claim 1.
- a ner driving is known from the earlier patent application P 41 11 131.1.
- bit-saving source codes are usually used before the channel coding, which are based on a reduction in redundancy and irrelevance.
- the digitally sampled audio signal is processed using a filter bank
- sampled values 25 subband samples and / or converted to spectral samples using a frequency domain transform.
- additional and control information such as, for example, scale factors, scale factor selection information and bit allocation information
- Binary digits within an information block produce a different subjective interference effect on the listener.
- the disruption of a bit assignment in the radio channel can briefly lead to a complete failure on the playback side and thus to a muting of the audio signal of a certain duration.
- This control information must therefore be protected considerably more than the encoded samples.
- the listener can only perceive a bit error of a small binary position of the encoded sample with difficulty and sometimes even not at all.
- the object of the invention is to provide, in a method of the type mentioned at the outset, a channel coding which is optimized with regard to minimal subjective interference, minimum data rate and maximum error protection.
- the invention is based on the consideration of using the different meaning of the information units within each information block for a continuously graduated, variable error protection in such a way that certain interference patterns result from transmission disturbances, which can be determined by suitable ones
- Fig. 1 is a schematic representation of a in the invention
- Method used information block which consists of a sequence of nine information units with different error protection
- Fig. 2 is a schematic representation similar to that in Fig. 1 for a alternative embodiment
- FIG. 3 shows a schematic representation of the two channels of a stereophonic audio signal which is channel-coded according to the inventive method according to FIG. 2 after channel decoding.
- a sub-band method is used as the source coding method, in which the frequency band of the digitized audio signal is split into a plurality of sub-bands. Each subband is assigned to one of six subband groups. The bit allocation and thus data reduction of the sample values of each subband is carried out according to psychoacoustic aspects (monitoring threshold calculation). The peak value of the amount of these samples is determined in each sub-band for a certain number of consecutive samples and is quantified as a so-called "scale factor" and recorded together with the data-reduced ones
- Such a data-reduced, channel-coded audio signal 1 is shown schematically in the figure and consists of a large number of successive information blocks 10.
- the information blocks 10 are preferably of the same length and each comprise a sequence of nine information units 11 to 19 in the example shown.
- the nine information units 11 to 19 contain the following information in accordance with the source coding scheme under consideration: Unit 11 bit allocation information
- Unit 12 scale factor selection information
- the individual information units 11 to 19 are assigned a varying bit error protection 21 to 29 during the channel coding.
- the bit allocation information 11 and the scale factor selection information 12 require a high level of error protection 21 and 22, respectively, since bit errors within these information units can lead to a complete destruction of the audio signal at the output of the source decoder. Since disrupted scale factors 13 subjectively are extremely disruptive, they also require a relatively high level of error protection 23.
- Subband groups No. 1 to No. 6, which are shown as information units 14 to 19, are treated differently with regard to their error protection 24 to 29.
- the subband samples of the subbands of the lower frequency range are in the information unit 14, those of the highest frequency range to be transmitted are in the information unit 19.
- FIG. 2 An application of this better error detection is shown in FIG. 2 using a two-channel, stereophonic audio signal. In each of the two channels No. 1 and No. 2, three successive information blocks 110, 120, 130 and 210, 220, 230 are illustrated. Each of these blocks, as shown for block 10 in FIG. 1, consists of nine information units.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Error Detection And Correction (AREA)
- Stereo-Broadcasting Methods (AREA)
- Time-Division Multiplex Systems (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4135070 | 1991-10-24 | ||
DE4135070A DE4135070C1 (de) | 1991-10-24 | 1991-10-24 | |
PCT/EP1992/002401 WO1993008656A1 (de) | 1991-10-24 | 1992-10-20 | Verfahren zum übertragen oder speichern eines aus einer folge von informationsblöcken bestehenden digitalisierten, encodierten tonsignals über störbehaftete kanäle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0609300A1 true EP0609300A1 (de) | 1994-08-10 |
EP0609300B1 EP0609300B1 (de) | 1996-09-11 |
Family
ID=6443299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92921545A Expired - Lifetime EP0609300B1 (de) | 1991-10-24 | 1992-10-20 | Verfahren zum übertragen oder speichern eines aus einer folge von informationsblöcken bestehenden digitalisierten, encodierten tonsignals über störbehaftete kanäle |
Country Status (9)
Country | Link |
---|---|
US (1) | US5440584A (de) |
EP (1) | EP0609300B1 (de) |
AT (1) | ATE142828T1 (de) |
AU (1) | AU2769192A (de) |
CA (1) | CA2122011C (de) |
DE (2) | DE4135070C1 (de) |
DK (1) | DK0609300T3 (de) |
ES (1) | ES2090697T3 (de) |
WO (1) | WO1993008656A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998048531A1 (de) * | 1997-04-23 | 1998-10-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum verschleiern von fehlern in einem audiodatenstrom |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4202140A1 (de) * | 1992-01-27 | 1993-07-29 | Thomson Brandt Gmbh | Verfahren zur uebertragung digitaler audio-signale |
US5642437A (en) * | 1992-02-22 | 1997-06-24 | Texas Instruments Incorporated | System decoder circuit with temporary bit storage and method of operation |
US5729556A (en) * | 1993-02-22 | 1998-03-17 | Texas Instruments | System decoder circuit with temporary bit storage and method of operation |
DE4327588A1 (de) * | 1993-08-17 | 1995-02-23 | Thomson Brandt Gmbh | Verfahren zur Übertragung oder Demodulation eines digitalen Signals und Demodulator zur Decodierung dieses Signals |
DE4335305A1 (de) * | 1993-10-16 | 1995-04-20 | Philips Patentverwaltung | Verfahren und Schaltungsanordnung zur Übertragung von Sprachsignalen |
CA2163371C (en) * | 1994-04-01 | 2005-09-20 | Kyoya Tsutsui | Information encoding method and apparatus, information decoding method and apparatus, information transmission method, and information recording medium |
DE4417993A1 (de) * | 1994-05-21 | 1995-12-07 | Bosch Gmbh Robert | Verfahren zur Übertragung von digitalen Audio-Signalen und Vorrichtung zur Übertragung digitaler Audio-Signale |
US5617541A (en) * | 1994-12-21 | 1997-04-01 | International Computer Science Institute | System for packetizing data encoded corresponding to priority levels where reconstructed data corresponds to fractionalized priority level and received fractionalized packets |
US6775652B1 (en) | 1998-06-30 | 2004-08-10 | At&T Corp. | Speech recognition over lossy transmission systems |
WO2002007325A1 (en) * | 2000-07-17 | 2002-01-24 | Koninklijke Philips Electronics N.V. | Signal coding |
US7132100B2 (en) | 2002-06-14 | 2006-11-07 | Medimmune, Inc. | Stabilized liquid anti-RSV antibody formulations |
US7425618B2 (en) | 2002-06-14 | 2008-09-16 | Medimmune, Inc. | Stabilized anti-respiratory syncytial virus (RSV) antibody formulations |
JP2006521116A (ja) | 2003-03-27 | 2006-09-21 | ピーティーシー セラピューティクス,インコーポレーテッド | 抗真菌性および/または抗増殖性分子を同定するためのtRNAスプライシング経路の酵素の標的化 |
KR20120035234A (ko) | 2003-04-11 | 2012-04-13 | 메디뮨 엘엘씨 | 재조합 il?9 항체 및 그의 용도 |
AU2005249360B2 (en) | 2004-04-12 | 2011-07-21 | Medimmune, Llc | Anti-IL-9 antibody formulations and uses thereof |
US7351739B2 (en) | 2004-04-30 | 2008-04-01 | Wellgen, Inc. | Bioactive compounds and methods of uses thereof |
CA2610632C (en) | 2004-06-01 | 2022-10-04 | Mount Sinai School Of Medicine Of New York University | Genetically engineered swine influenza virus and uses thereof |
CA2585717A1 (en) | 2004-10-27 | 2006-05-04 | Medimmune Inc. | Modulation of antibody specificity by tailoring the affinity to cognate antigens |
EP2650306A1 (de) | 2006-03-06 | 2013-10-16 | Aeres Biomedical Limited | Humanisierte Anti-CD22-Antikörper und ihre Verwendung bei der Behandlung von Krebs, Transplantationen und Autoimmunerkrankungen |
RU2549701C2 (ru) | 2007-05-07 | 2015-04-27 | Медиммун, Ллк | Анти-icos антитела и их применение в лечении онкологических, связанных с трансплантацией и аутоиммунных заболеваний |
ES2466916T3 (es) | 2007-06-27 | 2014-06-11 | Admune Therapeutics Llc | Complejos de IL-15 e IL-15R alfa y usos de los mismos |
BRPI0921845A2 (pt) | 2008-11-12 | 2019-09-17 | Medimmune Llc | formulação aquosa estéril estável, forma de dosagem unitária farmacêutica, seringa pré-carregada, e, métodos para tratar uma doença ou distúrbio, para tratar ou prevenir rejeição, para esgotar células t que expressam icos em um paciente humano, e para interromper arquitetura central germinal em um órgão linfóide secundário de um primata |
US8840889B2 (en) | 2009-08-13 | 2014-09-23 | The Johns Hopkins University | Methods of modulating immune function |
US9873674B2 (en) | 2012-09-21 | 2018-01-23 | Cornell University | C-Rel inhibitors and uses thereof |
EP2911684B1 (de) | 2012-10-24 | 2019-06-19 | Novartis Ag | Il-15r-alpha-formen, il-15r-alpha-formen exprimierende zellen und therapeutische verwendung von il-15r-alpha und il-15/il-15r-alpha-komplexen |
ES2811974T3 (es) | 2014-07-29 | 2021-03-15 | Novartis Ag | Regímenes de aumento escalonado de la dosis del heterodímero de il-15 e il-15ralfa para tratar afecciones |
US10960086B2 (en) | 2017-12-28 | 2021-03-30 | Augusta University Research Institute, Inc. | Aptamer compositions and methods of use thereof |
RU2020130837A (ru) | 2018-02-21 | 2022-03-21 | ЭйАй ТЕРАПЬЮТИКС, ИНК. | Комбинационная терапия апилимодом и глутаматергическими агентами |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3374109D1 (en) * | 1983-10-28 | 1987-11-19 | Ibm | Method of recovering lost information in a digital speech transmission system, and transmission system using said method |
EP0205667B1 (de) * | 1985-06-14 | 1990-02-14 | Koninklijke Philips Electronics N.V. | System zum Übertragen von Worten, gesichert bei einer Kombination eines Blockcodes und eines rekurrenten Kodes, Übertragungsgerät zur Verwendung in solchem System und Empfängergerät zur Verwendung in solchem System |
DE3805169A1 (de) * | 1988-02-19 | 1989-08-31 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen eines digital-codierten tonsignals |
US5010553A (en) * | 1988-12-05 | 1991-04-23 | Compuquest, Inc. | High speed, error-free data transmission system and method |
US5164963A (en) * | 1990-11-07 | 1992-11-17 | At&T Bell Laboratories | Coding for digital transmission |
US5105442A (en) * | 1990-11-07 | 1992-04-14 | At&T Bell Laboratories | Coded modulation with unequal error protection |
DE4111131C2 (de) * | 1991-04-06 | 2001-08-23 | Inst Rundfunktechnik Gmbh | Verfahren zum Übertragen digitalisierter Tonsignale |
US5289501A (en) * | 1991-11-26 | 1994-02-22 | At&T Bell Laboratories | Coded modulation with unequal error protection for fading channels |
-
1991
- 1991-10-24 DE DE4135070A patent/DE4135070C1/de not_active Expired - Fee Related
-
1992
- 1992-10-20 DE DE59207139T patent/DE59207139D1/de not_active Expired - Lifetime
- 1992-10-20 WO PCT/EP1992/002401 patent/WO1993008656A1/de active IP Right Grant
- 1992-10-20 US US08/211,825 patent/US5440584A/en not_active Expired - Lifetime
- 1992-10-20 EP EP92921545A patent/EP0609300B1/de not_active Expired - Lifetime
- 1992-10-20 ES ES92921545T patent/ES2090697T3/es not_active Expired - Lifetime
- 1992-10-20 AU AU27691/92A patent/AU2769192A/en not_active Abandoned
- 1992-10-20 CA CA002122011A patent/CA2122011C/en not_active Expired - Lifetime
- 1992-10-20 DK DK92921545.7T patent/DK0609300T3/da active
- 1992-10-20 AT AT92921545T patent/ATE142828T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO9308656A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998048531A1 (de) * | 1997-04-23 | 1998-10-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum verschleiern von fehlern in einem audiodatenstrom |
US6421802B1 (en) | 1997-04-23 | 2002-07-16 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method for masking defects in a stream of audio data |
Also Published As
Publication number | Publication date |
---|---|
US5440584A (en) | 1995-08-08 |
WO1993008656A1 (de) | 1993-04-29 |
ES2090697T3 (es) | 1996-10-16 |
EP0609300B1 (de) | 1996-09-11 |
DE4135070C1 (de) | 1993-05-19 |
DK0609300T3 (da) | 1996-11-25 |
CA2122011A1 (en) | 1993-04-29 |
ATE142828T1 (de) | 1996-09-15 |
DE59207139D1 (de) | 1996-10-17 |
CA2122011C (en) | 1999-06-08 |
AU2769192A (en) | 1993-05-21 |
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