JPS6013539B2 - コ−ド変換装置 - Google Patents

コ−ド変換装置

Info

Publication number: JPS6013539B2
Authority: JP; Japan
Prior art keywords: code; output; frequency; signal; ros
Prior art date: 1976-06-11
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

Application number

JP52061317A

Other languages

English (en)

Japanese (ja)

Other versions

JPS52153418A (en

Inventor

ペ−タ−・アンソニ−・フラナスツエク

デビツト・アレン・トンプソン

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

Priority date (The priority date 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 date listed.)

1976-06-11

Filing date

1977-05-27

Publication date

1985-04-08

1977-05-27 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1977-12-20 Publication of JPS52153418A publication Critical patent/JPS52153418A/ja

1985-04-08 Publication of JPS6013539B2 publication Critical patent/JPS6013539B2/ja

Status Expired legal-status Critical Current

Links

238000006243 chemical reaction Methods 0.000 title claims description 8
238000012544 monitoring process Methods 0.000 claims description 4
238000000034 method Methods 0.000 description 11
230000001186 cumulative effect Effects 0.000 description 10
230000000295 complement effect Effects 0.000 description 8
238000005516 engineering process Methods 0.000 description 5
238000013461 design Methods 0.000 description 2
238000010586 diagram Methods 0.000 description 2
230000002265 prevention Effects 0.000 description 2
238000012546 transfer Methods 0.000 description 2
238000004891 communication Methods 0.000 description 1
230000008602 contraction Effects 0.000 description 1
230000001276 controlling effect Effects 0.000 description 1
238000001514 detection method Methods 0.000 description 1
239000004744 fabric Substances 0.000 description 1
230000001788 irregular Effects 0.000 description 1
238000012806 monitoring device Methods 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
238000005070 sampling Methods 0.000 description 1
230000003595 spectral effect Effects 0.000 description 1
230000007704 transition Effects 0.000 description 1
238000013519 translation Methods 0.000 description 1

Classifications

- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing For Digital Recording And Reproducing (AREA)
Dc Digital Transmission (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)

JP52061317A 1976-06-11 1977-05-27 コ−ド変換装置 Expired JPS6013539B2 (ja)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/695,295 US4028535A (en)	1976-06-11	1976-06-11	Apparatus and method for generating a data code with a spectral null
US695295		1976-06-11

Publications (2)

Publication Number	Publication Date
JPS52153418A JPS52153418A (en)	1977-12-20
JPS6013539B2 true JPS6013539B2 (ja)	1985-04-08

Family

ID=24792436

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP52061317A Expired JPS6013539B2 (ja)	1976-06-11	1977-05-27	コ−ド変換装置

Country Status (7)

Country	Link
US (1)	US4028535A (2)
JP (1)	JPS6013539B2 (2)
CA (1)	CA1089993A (2)
DE (1)	DE2726198C2 (2)
FR (1)	FR2354663A1 (2)
GB (1)	GB1536628A (2)
IT (1)	IT1115323B (2)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5619506A (en) *	1979-07-23	1981-02-24	Sony Corp	Code converting method
US4567464A (en) *	1983-01-28	1986-01-28	International Business Machines Corporation	Fixed rate constrained channel code generating and recovery method and means having spectral nulls for pilot signal insertion
US4691292A (en) *	1983-04-13	1987-09-01	Rca Corporation	System for digital multiband filtering
JPS62298234A (ja) *	1986-06-13	1987-12-25	インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション	非対称ランレングス制限コ−ド化方法
JPH07114011B2 (ja) *	1988-09-20	1995-12-06	富士通株式会社	サーボ信号書込み方法
US5424881A (en) *	1993-02-01	1995-06-13	Cirrus Logic, Inc.	Synchronous read channel
US6028731A (en) *	1996-03-29	2000-02-22	Bond; Charles R.	Method and system for providing servo signals to a magnetic head positioning system of disk drive
US9209912B2 (en) *	2009-11-18	2015-12-08	Silicon Laboratories Inc.	Circuit devices and methods for re-clocking an input signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2116224B1 (2) *	1970-10-29	1974-10-31	Ibm France
FR2118410A5 (2) *	1970-12-17	1972-07-28	Ibm France

1976
- 1976-06-11 US US05/695,295 patent/US4028535A/en not_active Expired - Lifetime
1977
- 1977-04-26 FR FR7713457A patent/FR2354663A1/fr active Granted
- 1977-05-20 IT IT23795/77A patent/IT1115323B/it active
- 1977-05-27 JP JP52061317A patent/JPS6013539B2/ja not_active Expired
- 1977-06-07 CA CA280,033A patent/CA1089993A/en not_active Expired
- 1977-06-09 GB GB24254/77A patent/GB1536628A/en not_active Expired
- 1977-06-10 DE DE2726198A patent/DE2726198C2/de not_active Expired

Also Published As

Publication number	Publication date
IT1115323B (it)	1986-02-03
CA1089993A (en)	1980-11-18
DE2726198C2 (de)	1983-05-05
US4028535A (en)	1977-06-07
DE2726198A1 (de)	1977-12-22
FR2354663B1 (2)	1980-02-08
FR2354663A1 (fr)	1978-01-06
GB1536628A (en)	1978-12-20
JPS52153418A (en)	1977-12-20

Publication	Publication Date	Title
EP0234957B1 (en)	1992-12-16	Sync signal detection apparatus
JPH0544206B2 (2)	1993-07-05
JPS61108226A (ja)	1986-05-26	データの符号復号化方法
JPH04225625A (ja)	1992-08-14	ディジタル変調方式
JPH0519332B2 (2)	1993-03-16
US3996613A (en)	1976-12-07	Data recording and transmission apparatus utilizing non-consecutive zero coding
JPS6013539B2 (ja)	1985-04-08	コ−ド変換装置
JPS6226102B2 (2)	1987-06-06
KR950006085B1 (ko)	1995-06-08	부호변조장치
EP0206221B1 (en)	1990-02-21	Apparatus for recording and reproducing digital signal
US4700241A (en)	1987-10-13	Apparatus for recording and reproducing digital signals
US6044053A (en)	2000-03-28	Dc-balance-value calculation circuit and recording signal generator using the same
JP3368914B2 (ja)	2003-01-20	クロック回路及びこれを用いた磁気ディスク装置
KR970010524B1 (ko)	1997-06-26	디지탈 변조방법 및 장치
JPH0480576B2 (2)	1992-12-18
JPS60114053A (ja)	1985-06-20	符号変換方式
USRE28330E (en)	1975-02-04	Self-clocking five bit record-playback ststem
GB2205467A (en)	1988-12-07	Disk drive controller
JP2962027B2 (ja)	1999-10-12	情報変換方法および情報記録装置
JP2648909B2 (ja)	1997-09-03	書込みタイミング補償装置
JP3031920B2 (ja)	2000-04-10	マルチトラック型ディジタル磁気記録装置
JPH01221918A (ja)	1989-09-05	可変長符号変換装置
JP2713011B2 (ja)	1998-02-16	情報変換方法および情報記録装置・情報再生装置
JPS59888B2 (ja)	1984-01-09	デ−タ符号器
EP0488689B1 (en)	1997-06-04	Multi-channel data recorder