KR100419984B1 - 디지털신호뮤트방법과디지털신호뮤트방법을이용하는디지털신호처리장치와디지털신호기록장치 - Google Patents
디지털신호뮤트방법과디지털신호뮤트방법을이용하는디지털신호처리장치와디지털신호기록장치 Download PDFInfo
- Publication number
- KR100419984B1 KR100419984B1 KR1019960059202A KR19960059202A KR100419984B1 KR 100419984 B1 KR100419984 B1 KR 100419984B1 KR 1019960059202 A KR1019960059202 A KR 1019960059202A KR 19960059202 A KR19960059202 A KR 19960059202A KR 100419984 B1 KR100419984 B1 KR 100419984B1
- Authority
- KR
- South Korea
- Prior art keywords
- digital signal
- signal
- mute
- bit
- analog
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 230000003595 spectral effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 description 8
- 230000005236 sound signal Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- 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
- H03M7/3002—Conversion to or from differential modulation
-
- 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
- G11B20/02—Analogue recording or reproducing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
- H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
-
- 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
- G11B2020/00065—Sigma-delta audio encoding
-
- 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
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/10537—Audio or video recording
- G11B2020/10546—Audio or video recording specifically adapted for audio data
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (5)
- 적어도 1비트로 디지털화할때 얻어진 디지털신호를 뮤트하기 위한 디지털신호 처리장치에 있어서,소정의 뮤트패턴을 생성하기 위한 뮤트패턴신호 생성수단과;적어도 1비트로 디지털화된 디지털신호와 뮤트패턴신호 생성수단에 의해 생성된 뮤트패턴신호와의 사이에서 선택적으로 전환하기 위한 전환수단과;상기 전환수단의 출력을 아날로그신호로 변환하기 위한 무한응답 필터수단을 포함하여 구성되며, 여기서, 상기 소정의 뮤트패턴신호의 스펙트럼특성은 상기 무한응답 필터수단의 저지주파수와 일치하도록 선택된다는 구성을 갖는 것을 특징으로 하는 디지털신호 처리장치.
- 제 1항에 있어서,상기 디지털신호는 ∑△변조기에 의해 얻어진 1비트 디지털신호인 것을 특징으로 하는 디지털신호 처리장치.
- 적어도 1비트로 디지털화될때 얻어진 디지털신호를 기록매체내에서 뮤트하기 위한 디지털신호 기록장치에 있어서,소정의 뮤트패턴을 생성하기 위한 뮤트패턴신호 생성수단과;적어도 1비트로 디지털화된 디지털신호와 뮤트패턴신호 생성수단에 의해 생성된 뮤트패턴신호와의 사이에서 선택적으로 전환하기 위한 전환수단과;상기 전환수단의 출력을 아날로그신호로 변환하기 위한 무한응답 필터수단과;상기 전환수단의 출력신호를 기록매체에 기록하기 위한 기록수단을 포함하며, 여기서, 상기 소정의 뮤트패턴신호의 스펙트럼특성은 상기 무한응답 필터수단의 저지주파수와 일치하도록 선택된다는 구성을 갖는 것을 특징으로 하는 디지털신호 기록장치.
- 제 3항에 있어서,상기 디지털신호는 ∑△변조기에 의해 얻어진 1비트 디지털신호인 것을 특징으로 하는 디지털신호 기록장치.
- 상기 디지털신호의 송신시에, 뮤트명령에 기초해서 적어도 1비트로 디지털화된 디지털신호를 뮤트하기 위한 디지털신호 뮤트방법에 있어서,뮤트신호의 스펙트럼분포가, 디지털신호를 아날로그신호 변환하기 위해 구성되는 무한응답필터의 상기 저지주파수와 일치하도록, 상기 뮤트명령에 의해 생성된 상기 뮤트신호를 선택하는 것을 특징으로 하는 디지털신호 뮤트방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7313353A JPH09153814A (ja) | 1995-11-30 | 1995-11-30 | ディジタル信号処理装置及び記録装置 |
JP95-313353 | 1995-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970031383A KR970031383A (ko) | 1997-06-26 |
KR100419984B1 true KR100419984B1 (ko) | 2004-05-07 |
Family
ID=18040237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960059202A KR100419984B1 (ko) | 1995-11-30 | 1996-11-28 | 디지털신호뮤트방법과디지털신호뮤트방법을이용하는디지털신호처리장치와디지털신호기록장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6400294B1 (ko) |
JP (1) | JPH09153814A (ko) |
KR (1) | KR100419984B1 (ko) |
CN (1) | CN1282947C (ko) |
SG (1) | SG95581A1 (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003006991A (ja) * | 2001-06-21 | 2003-01-10 | Sony Corp | デジタル信号処理装置及びデジタル信号処理方法、並びにデジタル信号再生受信システム |
US7173550B1 (en) * | 2001-07-13 | 2007-02-06 | Cirrus Logic, Inc. | Circuits, systems and methods for volume control in low noise 1-bit digital audio systems |
JP3912389B2 (ja) * | 2004-03-24 | 2007-05-09 | ソニー株式会社 | ディジタル信号処理装置及びディジタル信号処理方法 |
TWI355807B (en) * | 2008-06-26 | 2012-01-01 | Realtek Semiconductor Corp | Digital-to-analog converter for converting 1-bit s |
CN106866434B (zh) * | 2017-02-14 | 2018-10-30 | 齐鲁天和惠世制药有限公司 | 一种盐酸文拉法辛中间体的制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05145423A (ja) * | 1991-11-20 | 1993-06-11 | Sony Corp | デイジタル−アナログ変換方式 |
JPH06244732A (ja) * | 1992-02-07 | 1994-09-02 | Rockwell Internatl Corp | 入力信号を1−ビットシグマ−デルタ変調するための方法およびそのための装置 |
JPH07297646A (ja) * | 1994-04-26 | 1995-11-10 | Sony Corp | デジタル/アナログ変換回路 |
JPH07302100A (ja) * | 1994-03-03 | 1995-11-14 | Sony Corp | デジタル音声伝送装置 |
JPH07311593A (ja) * | 1994-05-18 | 1995-11-28 | Mitsubishi Electric Corp | サブバンド分割符号化オーディオ復号器のミューティング装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4142066A (en) * | 1977-12-27 | 1979-02-27 | Bell Telephone Laboratories, Incorporated | Suppression of idle channel noise in delta modulation systems |
US4812815A (en) * | 1985-12-25 | 1989-03-14 | Sharp Kabushiki Kaisha | Digital-to-analog converter system |
US4857928A (en) * | 1988-01-28 | 1989-08-15 | Motorola, Inc. | Method and arrangement for a sigma delta converter for bandpass signals |
US5444312A (en) * | 1992-05-04 | 1995-08-22 | Compaq Computer Corp. | Soft switching circuit for audio muting or filter activation |
US5574453A (en) * | 1994-03-03 | 1996-11-12 | Sony Corporation | Digital audio recording apparatus |
-
1995
- 1995-11-30 JP JP7313353A patent/JPH09153814A/ja not_active Withdrawn
-
1996
- 1996-11-20 US US08/754,270 patent/US6400294B1/en not_active Expired - Lifetime
- 1996-11-23 SG SG9611408A patent/SG95581A1/en unknown
- 1996-11-28 KR KR1019960059202A patent/KR100419984B1/ko not_active IP Right Cessation
- 1996-11-30 CN CNB96117255XA patent/CN1282947C/zh not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05145423A (ja) * | 1991-11-20 | 1993-06-11 | Sony Corp | デイジタル−アナログ変換方式 |
JPH06244732A (ja) * | 1992-02-07 | 1994-09-02 | Rockwell Internatl Corp | 入力信号を1−ビットシグマ−デルタ変調するための方法およびそのための装置 |
JPH07302100A (ja) * | 1994-03-03 | 1995-11-14 | Sony Corp | デジタル音声伝送装置 |
JPH07297646A (ja) * | 1994-04-26 | 1995-11-10 | Sony Corp | デジタル/アナログ変換回路 |
JPH07311593A (ja) * | 1994-05-18 | 1995-11-28 | Mitsubishi Electric Corp | サブバンド分割符号化オーディオ復号器のミューティング装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1282947C (zh) | 2006-11-01 |
JPH09153814A (ja) | 1997-06-10 |
SG95581A1 (en) | 2003-04-23 |
KR970031383A (ko) | 1997-06-26 |
US6400294B1 (en) | 2002-06-04 |
CN1164086A (zh) | 1997-11-05 |
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