FI933324A - Foerfarande foer oeverfoering av digitaliserade, blockkodade audiosignalergenom anvaendning av skalningsfaktorer - Google Patents
Foerfarande foer oeverfoering av digitaliserade, blockkodade audiosignalergenom anvaendning av skalningsfaktorer Download PDFInfo
- Publication number
- FI933324A FI933324A FI933324A FI933324A FI933324A FI 933324 A FI933324 A FI 933324A FI 933324 A FI933324 A FI 933324A FI 933324 A FI933324 A FI 933324A FI 933324 A FI933324 A FI 933324A
- Authority
- FI
- Finland
- Prior art keywords
- scale factors
- sequence
- new scale
- value
- audio signals
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- 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
- H03M7/3053—Block-companding PCM systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4102324 | 1991-01-26 | ||
DE4102324A DE4102324C1 (fi) | 1991-01-26 | 1991-01-26 | |
PCT/EP1991/001211 WO1992013396A1 (de) | 1991-01-26 | 1991-06-27 | Verfahren zum übertragen digitalisierter, blockcodierter tonsignale unter verwendung von skalenfaktoren |
EP9101211 | 1991-06-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI933324A true FI933324A (fi) | 1993-07-23 |
FI933324A0 FI933324A0 (fi) | 1993-07-23 |
FI105248B FI105248B (fi) | 2000-06-30 |
Family
ID=6423777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI933324A FI105248B (fi) | 1991-01-26 | 1993-07-23 | Menetelmä digitoitujen, lohkokoodattujen äänisignaalien siirtämiseksi skaalauskertoimia käyttäen |
Country Status (10)
Country | Link |
---|---|
US (1) | US5991715A (fi) |
EP (1) | EP0568532B1 (fi) |
JP (1) | JP2599660B2 (fi) |
KR (1) | KR960012085B1 (fi) |
AT (1) | ATE117476T1 (fi) |
DE (2) | DE4102324C1 (fi) |
DK (1) | DK0568532T3 (fi) |
ES (1) | ES2067237T3 (fi) |
FI (1) | FI105248B (fi) |
WO (1) | WO1992013396A1 (fi) |
Families Citing this family (6)
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 |
US5581653A (en) * | 1993-08-31 | 1996-12-03 | Dolby Laboratories Licensing Corporation | Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder |
JPH11143497A (ja) * | 1997-11-10 | 1999-05-28 | Matsushita Electric Ind Co Ltd | 圧縮されたテーブルを用いてサブバンドごとに量子化係数を復号化する方法 |
DE19947877C2 (de) * | 1999-10-05 | 2001-09-13 | Fraunhofer Ges Forschung | Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals |
GB0103242D0 (en) * | 2001-02-09 | 2001-03-28 | Radioscape Ltd | Method of analysing a compressed signal for the presence or absence of information content |
US8290782B2 (en) * | 2008-07-24 | 2012-10-16 | Dts, Inc. | Compression of audio scale-factors by two-dimensional transformation |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0064119B1 (fr) * | 1981-04-30 | 1985-08-28 | International Business Machines Corporation | Perfectionnement aux procédés de codage de la voix et dispositif de mise en oeuvre du procédé perfectionné |
DE3328344C1 (de) * | 1983-08-05 | 1984-12-20 | Institut für Rundfunktechnik GmbH, 8000 München | Verfahren zum Übertragen von digitalen Tonsignalen sowie Einrichtung zum Empfangen eines nach diesem Verfahren übertragenen Tonsignals |
US4605963A (en) * | 1983-08-15 | 1986-08-12 | Rca Corporation | Reduction of control bits for adaptive sub-nyquist encoder |
JPS62165493A (ja) * | 1986-01-16 | 1987-07-22 | Canon Inc | 情報信号伝送システム |
DE3639753A1 (de) * | 1986-11-21 | 1988-06-01 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen digitalisierter tonsignale |
JPH01280800A (ja) * | 1988-05-06 | 1989-11-10 | Ricoh Co Ltd | 符号化方式 |
-
1991
- 1991-01-26 DE DE4102324A patent/DE4102324C1/de not_active Expired - Lifetime
- 1991-06-27 EP EP91911829A patent/EP0568532B1/de not_active Expired - Lifetime
- 1991-06-27 DE DE59104347T patent/DE59104347D1/de not_active Expired - Lifetime
- 1991-06-27 WO PCT/EP1991/001211 patent/WO1992013396A1/de active IP Right Grant
- 1991-06-27 ES ES91911829T patent/ES2067237T3/es not_active Expired - Lifetime
- 1991-06-27 KR KR1019930702217A patent/KR960012085B1/ko not_active IP Right Cessation
- 1991-06-27 DK DK91911829.9T patent/DK0568532T3/da active
- 1991-06-27 AT AT91911829T patent/ATE117476T1/de not_active IP Right Cessation
- 1991-06-27 JP JP3510936A patent/JP2599660B2/ja not_active Expired - Lifetime
-
1993
- 1993-07-23 FI FI933324A patent/FI105248B/fi not_active IP Right Cessation
-
1995
- 1995-08-31 US US08/521,817 patent/US5991715A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5991715A (en) | 1999-11-23 |
JPH07503342A (ja) | 1995-04-06 |
DK0568532T3 (da) | 1995-05-22 |
KR960012085B1 (ko) | 1996-09-12 |
WO1992013396A1 (de) | 1992-08-06 |
DE4102324C1 (fi) | 1992-06-17 |
EP0568532A1 (de) | 1993-11-10 |
DE59104347D1 (de) | 1995-03-02 |
FI933324A0 (fi) | 1993-07-23 |
ATE117476T1 (de) | 1995-02-15 |
KR930703746A (ko) | 1993-11-30 |
FI105248B (fi) | 2000-06-30 |
JP2599660B2 (ja) | 1997-04-09 |
EP0568532B1 (de) | 1995-01-18 |
ES2067237T3 (es) | 1995-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |