DE69021919T2 - Digitales Modulationsverfahren. - Google Patents
Digitales Modulationsverfahren.Info
- Publication number
- DE69021919T2 DE69021919T2 DE69021919T DE69021919T DE69021919T2 DE 69021919 T2 DE69021919 T2 DE 69021919T2 DE 69021919 T DE69021919 T DE 69021919T DE 69021919 T DE69021919 T DE 69021919T DE 69021919 T2 DE69021919 T2 DE 69021919T2
- Authority
- DE
- Germany
- Prior art keywords
- digital modulation
- modulation process
- digital
- modulation
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M5/00—Conversion of the form of the representation of individual digits
- H03M5/02—Conversion to or from representation by pulses
- H03M5/04—Conversion to or from representation by pulses the pulses having two levels
- H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
- H03M5/145—Conversion to or from block codes or representations thereof
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1090537A JPH02270422A (ja) | 1989-04-12 | 1989-04-12 | ディジタル変調方式 |
JP2826290A JPH063942B2 (ja) | 1990-02-09 | 1990-02-09 | ディジタル変調方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69021919D1 DE69021919D1 (de) | 1995-10-05 |
DE69021919T2 true DE69021919T2 (de) | 1996-03-28 |
Family
ID=26366316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69021919T Expired - Lifetime DE69021919T2 (de) | 1989-04-12 | 1990-04-11 | Digitales Modulationsverfahren. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4988999A (de) |
EP (1) | EP0392506B1 (de) |
KR (1) | KR940000946B1 (de) |
CN (1) | CN1017489B (de) |
CA (1) | CA2014299C (de) |
DE (1) | DE69021919T2 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5365231A (en) * | 1991-03-30 | 1994-11-15 | Kabushiki Kaisha Toshiba | Encoding apparatus for digital signal with improved block channel coding |
US5349349A (en) * | 1991-09-30 | 1994-09-20 | Sony Corporation | Modulator circuit for a recording for a digital recording medium |
DE69217860T2 (de) * | 1991-12-09 | 1997-10-16 | Matsushita Electric Ind Co Ltd | Digitale Modulator- oder Demodulatorschaltung |
KR0141126B1 (ko) * | 1992-08-31 | 1998-07-15 | 윤종용 | 디지탈 기록재생시스템에 있어서 코드변환제어장치 및 방법 |
US5341134A (en) * | 1992-12-30 | 1994-08-23 | Datatape Incorporated | Simple coding scheme for DC free channel codes of form M/N, where M=N-1 and M and N are positive integers |
CA2456968C (en) * | 1994-02-15 | 2005-01-25 | Philips Electronics N.V. | Method of converting a series of m-bit information words to a modulated signal, method of producing a record carrier, coding device, decoding device, recording device, reading device, signal, as well as a record carrier |
US5870037A (en) * | 1994-07-08 | 1999-02-09 | Sony Corporation | Method and apparatus, demodulating method and signal demodulating apparatus |
JP3541439B2 (ja) * | 1994-07-08 | 2004-07-14 | ソニー株式会社 | 信号変調方法及び装置、並びに信号復調装置及び方法 |
WO1996024933A1 (fr) * | 1995-02-10 | 1996-08-15 | Sony Corporation | Appareil de transfert de donnees numeriques |
JPH0917129A (ja) | 1995-06-30 | 1997-01-17 | Fujitsu Ltd | ライトデータの調整ビット決定方法、調整ビット決定回路、ライトデータ作成回路及びディスク装置 |
US5699434A (en) | 1995-12-12 | 1997-12-16 | Hewlett-Packard Company | Method of inhibiting copying of digital data |
JP3339539B2 (ja) * | 1995-12-13 | 2002-10-28 | 松下電器産業株式会社 | デジタル変調装置、その方法及び記録媒体 |
CA2321208A1 (en) | 1998-12-21 | 2000-06-29 | Koninklijke Philips Electronics N.V. | Device for encoding n-bit source words into corresponding m-bit channel words and decoding m-bit channel words into corresponding n-bit source words |
JP2004518241A (ja) * | 2001-02-02 | 2004-06-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 一連のmビットの情報ワードを被変調信号に変換する方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5619506A (en) * | 1979-07-23 | 1981-02-24 | Sony Corp | Code converting method |
US4833471A (en) * | 1984-03-26 | 1989-05-23 | Canon Kabushiki Kaisha | Data processing apparatus |
EP0162558B1 (de) * | 1984-05-21 | 1991-08-21 | Matsushita Electric Industrial Co., Ltd. | Verfahren und Vorrichtung zur Erzeugung eines lauflängenbegrenzten Kodes |
JPS61196469A (ja) * | 1985-02-25 | 1986-08-30 | Matsushita Electric Ind Co Ltd | デイジタル変調方法 |
EP0193153B1 (de) * | 1985-02-25 | 1991-11-13 | Matsushita Electric Industrial Co., Ltd. | Digitales Datenaufzeichnungs- und -wiedergabeverfahren |
JPS6216619A (ja) * | 1985-07-16 | 1987-01-24 | Matsushita Electric Ind Co Ltd | 符号変換装置 |
JPS6249724A (ja) * | 1985-08-29 | 1987-03-04 | Nec Corp | デジタル変調方式 |
US4833470A (en) * | 1986-07-15 | 1989-05-23 | Matsushita Electric Industrial Co., Ltd. | Code conversion apparatus |
-
1990
- 1990-04-09 US US07/506,270 patent/US4988999A/en not_active Expired - Lifetime
- 1990-04-10 CA CA002014299A patent/CA2014299C/en not_active Expired - Lifetime
- 1990-04-11 DE DE69021919T patent/DE69021919T2/de not_active Expired - Lifetime
- 1990-04-11 EP EP90106948A patent/EP0392506B1/de not_active Expired - Lifetime
- 1990-04-11 CN CN90102027A patent/CN1017489B/zh not_active Expired
- 1990-04-11 KR KR1019900004961A patent/KR940000946B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1046406A (zh) | 1990-10-24 |
DE69021919D1 (de) | 1995-10-05 |
CN1017489B (zh) | 1992-07-15 |
EP0392506B1 (de) | 1995-08-30 |
CA2014299C (en) | 1997-03-18 |
EP0392506A3 (de) | 1991-10-30 |
US4988999A (en) | 1991-01-29 |
CA2014299A1 (en) | 1990-10-12 |
EP0392506A2 (de) | 1990-10-17 |
KR940000946B1 (ko) | 1994-02-04 |
KR900017292A (ko) | 1990-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |