CA2017210A1 - Methodes et appareil d'enregistrement et de lecture de signaux audio - Google Patents
Methodes et appareil d'enregistrement et de lecture de signaux audioInfo
- Publication number
- CA2017210A1 CA2017210A1 CA2017210A CA2017210A CA2017210A1 CA 2017210 A1 CA2017210 A1 CA 2017210A1 CA 2017210 A CA2017210 A CA 2017210A CA 2017210 A CA2017210 A CA 2017210A CA 2017210 A1 CA2017210 A1 CA 2017210A1
- Authority
- CA
- Canada
- Prior art keywords
- sound signal
- recording
- analog
- digital sound
- amplitude
- 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 abstract 10
- 238000000034 method Methods 0.000 title abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000001419 dependent effect Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12844789 | 1989-05-22 | ||
| JP128447/89 | 1989-05-22 | ||
| JP2023348A JPH0372721A (ja) | 1989-05-22 | 1990-02-01 | 録音および再生方法並びに録音および再生装置 |
| JP23348/90 | 1990-02-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2017210A1 true CA2017210A1 (fr) | 1990-11-22 |
| CA2017210C CA2017210C (fr) | 1995-01-03 |
Family
ID=26360696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002017210A Expired - Fee Related CA2017210C (fr) | 1989-05-22 | 1990-05-18 | Methodes et appareil d'enregistrement et de lecture de signaux audio |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5089820A (fr) |
| CN (1) | CN1023353C (fr) |
| AU (1) | AU617611B2 (fr) |
| CA (1) | CA2017210C (fr) |
| DE (1) | DE4015910C2 (fr) |
| ES (1) | ES2024800A6 (fr) |
| FR (1) | FR2648262B1 (fr) |
| GB (1) | GB2232024B (fr) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329062A (en) * | 1990-07-31 | 1994-07-12 | Casio Computer Co., Ltd. | Method of recording/reproducing waveform and apparatus for reproducing waveform |
| ES2135408T3 (es) * | 1991-05-29 | 1999-11-01 | Pacific Microsonics Inc | Sistema mejorado de codificacion/decodificacion de señales. |
| JPH04357716A (ja) * | 1991-06-04 | 1992-12-10 | Mitsubishi Electric Corp | マルチチャンネルdaコンバータ |
| JP3163119B2 (ja) * | 1991-07-19 | 2001-05-08 | シャープ株式会社 | 記録再生装置 |
| CH688459A5 (de) * | 1992-02-04 | 1997-09-30 | Ascom Audiosys Ag | Verfahren zur Digitalisierung eines Signals, Verarbeitungseinheit zu dessen Ausfuehrung |
| JPH0779204A (ja) * | 1993-09-06 | 1995-03-20 | Mitsubishi Electric Corp | 移動体通信機器 |
| CN1074641C (zh) * | 1994-01-19 | 2001-11-07 | 聂学军 | 数字音响的设计方法及装置 |
| CN1074849C (zh) * | 1995-09-01 | 2001-11-14 | 苏勇 | 音频信号保真变速处理方法 |
| CN1145519A (zh) * | 1995-09-01 | 1997-03-19 | 苏勇 | 音频信号保真变速处理方法 |
| EP1011091B1 (fr) * | 1995-09-29 | 2004-04-28 | Yamaha Corporation | Méthode et dispositif pour la génération de son musical |
| JPH09198089A (ja) * | 1996-01-19 | 1997-07-31 | Matsushita Electric Ind Co Ltd | 再生速度変換装置 |
| US7049989B2 (en) * | 2004-10-01 | 2006-05-23 | Smiths Aerospace Llc | Unified analog input front end apparatus and method |
| US9236837B2 (en) | 2011-08-25 | 2016-01-12 | Infineon Technologies Ag | System and method for low distortion capacitive signal source amplifier |
| US8638249B2 (en) | 2012-04-16 | 2014-01-28 | Infineon Technologies Ag | System and method for high input capacitive signal amplifier |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1261253A (fr) * | 1960-03-28 | 1961-05-19 | Système de transmission à modulation d'impulsions codées | |
| US3187323A (en) * | 1961-10-24 | 1965-06-01 | North American Aviation Inc | Automatic scaler for analog-to-digital converter |
| US3411153A (en) * | 1964-10-12 | 1968-11-12 | Philco Ford Corp | Plural-signal analog-to-digital conversion system |
| US3509558A (en) * | 1965-10-22 | 1970-04-28 | Nasa | Wide range data compression system |
| DE1276708B (de) * | 1966-04-05 | 1968-09-05 | Siemens Ag | Pulscodemodulationssystem mit Kompandierung |
| CH464290A (de) * | 1967-09-26 | 1968-10-31 | Siemens Ag Albis | Verfahren und Einrichtung zur Codierung von pulsamplitudenmodulierten Signalen in Puls-Code-Modulationsanlagen |
| US3500247A (en) * | 1968-01-08 | 1970-03-10 | Communications Satellite Corp | Non-linear pulse code modulation with threshold selected sampling |
| US3696399A (en) * | 1970-09-11 | 1972-10-03 | Coulter Electronics | Range expansion method and apparatus for multichannel pulse analysis |
| US4048635A (en) * | 1975-09-15 | 1977-09-13 | Texaco Inc. | Seismic playback/monitor system |
| US4091379A (en) * | 1976-05-03 | 1978-05-23 | Litton Business Systems, Inc. | Analog to digital wave shaping system |
| DE2644255A1 (de) * | 1976-09-28 | 1978-03-30 | Siemens Ag | Schaltungsanordnung zur automatischen messbereichsumschaltung eines analog-digital-umsetzers |
| FR2378401A1 (fr) * | 1977-01-20 | 1978-08-18 | Cit Alcatel | Procede et dispositif pour adapter un signal analogique en vue de son codage numerique dans un codeur ayant une plage de codage donnee |
| US4177457A (en) * | 1977-12-12 | 1979-12-04 | Texaco Inc. | Floating point playback system |
| JPS58218011A (ja) * | 1982-06-10 | 1983-12-19 | Matsushita Electric Ind Co Ltd | 大振幅の信号の録音再生が可能なpcm録音再生装置 |
| JPS5939134A (ja) * | 1982-08-30 | 1984-03-03 | Hitachi Ltd | 折線伸張回路 |
| DE3328111A1 (de) * | 1983-08-04 | 1985-02-21 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Quasi-momentanwert-kompander |
| JPS6044837A (ja) * | 1983-08-23 | 1985-03-11 | Victor Co Of Japan Ltd | 波形再生装置 |
| JPS60119672A (ja) * | 1983-12-02 | 1985-06-27 | Victor Co Of Japan Ltd | 楽器音符号の読出装置 |
| US4603321A (en) * | 1985-01-17 | 1986-07-29 | Detente, Co. | Analog-to-digital interface circuit for electronic musical equipment |
| US4879558A (en) * | 1986-12-12 | 1989-11-07 | Sangamo Weston, Inc. | Data compression apparatus and method for data recorder with waveform envelope display |
| JP2553534B2 (ja) * | 1986-12-26 | 1996-11-13 | 松下電器産業株式会社 | テレビジヨン映像信号制御装置 |
| JP2533062Y2 (ja) * | 1987-07-03 | 1997-04-16 | ヤマハ株式会社 | アナログディジタル変換回路 |
| US4926063A (en) * | 1988-11-14 | 1990-05-15 | Kollmorgen Corporation | Square root digital-to-analog converter |
| EP1026083A1 (fr) * | 1999-02-03 | 2000-08-09 | Thies Eggers | Dispositif de coupe pour séparer des emballages d'une bande |
-
1990
- 1990-05-02 GB GB9009886A patent/GB2232024B/en not_active Expired - Fee Related
- 1990-05-03 AU AU54644/90A patent/AU617611B2/en not_active Ceased
- 1990-05-15 FR FR9006038A patent/FR2648262B1/fr not_active Expired - Fee Related
- 1990-05-17 DE DE4015910A patent/DE4015910C2/de not_active Expired - Fee Related
- 1990-05-18 CA CA002017210A patent/CA2017210C/fr not_active Expired - Fee Related
- 1990-05-22 US US07/527,212 patent/US5089820A/en not_active Expired - Lifetime
- 1990-05-22 CN CN90103810A patent/CN1023353C/zh not_active Expired - Fee Related
- 1990-05-22 ES ES9001421A patent/ES2024800A6/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4015910A1 (de) | 1990-11-29 |
| FR2648262B1 (fr) | 1995-08-04 |
| ES2024800A6 (es) | 1992-03-01 |
| GB2232024A (en) | 1990-11-28 |
| CN1047586A (zh) | 1990-12-05 |
| GB9009886D0 (en) | 1990-06-27 |
| DE4015910C2 (de) | 1994-06-16 |
| AU617611B2 (en) | 1991-11-28 |
| AU5464490A (en) | 1990-11-29 |
| CN1023353C (zh) | 1993-12-29 |
| US5089820A (en) | 1992-02-18 |
| FR2648262A1 (fr) | 1990-12-14 |
| GB2232024B (en) | 1994-01-12 |
| CA2017210C (fr) | 1995-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |