CN1111960C - 数字数据编码装置及其方法 - Google Patents
数字数据编码装置及其方法 Download PDFInfo
- Publication number
- CN1111960C CN1111960C CN96111959A CN96111959A CN1111960C CN 1111960 C CN1111960 C CN 1111960C CN 96111959 A CN96111959 A CN 96111959A CN 96111959 A CN96111959 A CN 96111959A CN 1111960 C CN1111960 C CN 1111960C
- Authority
- CN
- China
- Prior art keywords
- data
- mentioned
- frequency band
- coefficient data
- piece
- 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
-
- 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
- H04B1/665—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 psychoacoustic properties of the ear, e.g. masking effect
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP246952/95 | 1995-08-31 | ||
JP246952/1995 | 1995-08-31 | ||
JP7246952A JPH0969781A (ja) | 1995-08-31 | 1995-08-31 | オーディオデータ符号化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1152216A CN1152216A (zh) | 1997-06-18 |
CN1111960C true CN1111960C (zh) | 2003-06-18 |
Family
ID=17156181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN96111959A Expired - Lifetime CN1111960C (zh) | 1995-08-31 | 1996-08-30 | 数字数据编码装置及其方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5812982A (zh) |
JP (1) | JPH0969781A (zh) |
CN (1) | CN1111960C (zh) |
TW (1) | TW382861B (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3279228B2 (ja) * | 1997-08-09 | 2002-04-30 | 日本電気株式会社 | 符号化音声復号装置 |
FI110373B (fi) * | 2001-04-11 | 2002-12-31 | Nokia Corp | Menetelmä pakatun audiosignaalin purkamiseksi |
US7536302B2 (en) * | 2004-07-13 | 2009-05-19 | Industrial Technology Research Institute | Method, process and device for coding audio signals |
US8364734B2 (en) | 2005-09-15 | 2013-01-29 | International Business Machines Corporation | Converting from decimal floating point into scaled binary coded decimal |
US7698352B2 (en) | 2005-09-15 | 2010-04-13 | International Business Machines Corporation | System and method for converting from scaled binary coded decimal into decimal floating point |
US7590523B2 (en) * | 2006-03-20 | 2009-09-15 | Mindspeed Technologies, Inc. | Speech post-processing using MDCT coefficients |
US8051118B2 (en) | 2007-04-26 | 2011-11-01 | International Business Machines Corporation | Composition of decimal floating point data |
US8051117B2 (en) | 2007-04-26 | 2011-11-01 | International Business Machines Corporation | Shift significand of decimal floating point data |
US8190664B2 (en) | 2007-04-26 | 2012-05-29 | International Business Machines Corporation | Employing a mask field of an instruction to encode a sign of a result of the instruction |
CN102238628B (zh) * | 2010-05-06 | 2013-12-18 | 华为技术有限公司 | Iq数据传输方法和装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065565A (zh) * | 1991-03-29 | 1992-10-21 | 索尼公司 | 数字音频信号的编码方法 |
US5294925A (en) * | 1991-08-23 | 1994-03-15 | Sony Corporation | Data compressing and expanding apparatus with time domain and frequency domain block floating |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5394508A (en) * | 1992-01-17 | 1995-02-28 | Massachusetts Institute Of Technology | Method and apparatus for encoding decoding and compression of audio-type data |
US5369724A (en) * | 1992-01-17 | 1994-11-29 | Massachusetts Institute Of Technology | Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients |
JP3186292B2 (ja) * | 1993-02-02 | 2001-07-11 | ソニー株式会社 | 高能率符号化方法及び装置 |
-
1995
- 1995-08-31 JP JP7246952A patent/JPH0969781A/ja not_active Withdrawn
-
1996
- 1996-08-29 TW TW085110525A patent/TW382861B/zh not_active IP Right Cessation
- 1996-08-29 US US08/697,728 patent/US5812982A/en not_active Expired - Lifetime
- 1996-08-30 CN CN96111959A patent/CN1111960C/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065565A (zh) * | 1991-03-29 | 1992-10-21 | 索尼公司 | 数字音频信号的编码方法 |
US5294925A (en) * | 1991-08-23 | 1994-03-15 | Sony Corporation | Data compressing and expanding apparatus with time domain and frequency domain block floating |
Also Published As
Publication number | Publication date |
---|---|
JPH0969781A (ja) | 1997-03-11 |
US5812982A (en) | 1998-09-22 |
TW382861B (en) | 2000-02-21 |
CN1152216A (zh) | 1997-06-18 |
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Effective date of registration: 20100115 Address after: American California Patentee after: Joint component Limited by Share Ltd. Address before: Tokyo, Japan Patentee before: NIPPON STEEL Corp. |
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Owner name: DOLBY INTERNATIONAL CO., LTD. Free format text: FORMER OWNER: DOLBY LAB LICENSING CORP. Effective date: 20101201 Owner name: DOLBY LAB LICENSING CORP. Free format text: FORMER OWNER: LIANHE COMPONENTS CO., LTD. Effective date: 20101201 |
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Effective date of registration: 20101201 Address after: Amsterdam, The Netherlands Patentee after: DOLBY INTERNATIONAL AB Address before: American California Patentee before: DOLBY LABORATORIES LICENSING Corp. Effective date of registration: 20101201 Address after: American California Patentee after: DOLBY LABORATORIES LICENSING Corp. Address before: American California Patentee before: Joint component Limited by Share Ltd. |
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