FR1604157A - - Google Patents

Info

Publication number: FR1604157A
Authority: FR; France
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

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.)

1967-08-14

Filing date

1968-08-14

Publication date

1971-07-26

1968-08-14 Application filed filed Critical

1971-07-26 Application granted granted Critical

1971-07-26 Publication of FR1604157A publication Critical patent/FR1604157A/fr

Status Expired legal-status Critical Current

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
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
- G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
- 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
- G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Signal Processing For Digital Recording And Reproducing (AREA)
Digital Magnetic Recording (AREA)

FR1604157D 1967-08-14 1968-08-14 Expired FR1604157A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US66038367A	1967-08-14	1967-08-14

Publications (1)

Publication Number	Publication Date
FR1604157A true FR1604157A (fr)	1971-07-26

Family

ID=24649319

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1604157D Expired FR1604157A (fr)	1967-08-14	1968-08-14

Country Status (5)

Country	Link
US (1)	US3537084A (fr)
JP (1)	JPS4949B1 (fr)
FR (1)	FR1604157A (fr)
GB (1)	GB1242576A (fr)
NL (1)	NL163651C (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3631422A (en) *	1969-02-03	1971-12-28	Ibm	System for detection of data time interval measurement
US3761906A (en) *	1971-01-08	1973-09-25	Cogar Corp	Tape system
US3755792A (en) *	1971-03-26	1973-08-28	N Harvey	Digital data storage system
US3736581A (en) *	1971-07-02	1973-05-29	Honeywell Inc	High density digital recording
US3749889A (en) *	1971-08-19	1973-07-31	Interface Ind Inc	Reader apparatus for reading record materials at speeds which are independent of recording speeds
US3727202A (en) *	1972-01-10	1973-04-10	Telex Computer Products	Application of an automatic pulse width controlled, monostable multivibrator for detecting phase encoded information on magnetic tape
US3815108A (en) *	1972-03-17	1974-06-04	Gen Instrument Corp	Self-clocking nrz recording and reproduction system
US3838448A (en) *	1973-02-07	1974-09-24	Control Data Corp	Compensated baseline circuit
US4544964A (en) *	1978-02-24	1985-10-01	Burroughs Corporation	Strobe for read/write chain
JPS5813046A (ja) *	1981-07-17	1983-01-25	Victor Co Of Japan Ltd	デ−タ読み取り回路
GB2205467B (en) *	1987-05-28	1992-02-12	Apple Computer	Disk drive controller
US5151985A (en) *	1987-05-28	1992-09-29	Apple Computer, Inc.	Disk drive controller
US5303416A (en) *	1993-01-21	1994-04-12	Motorola, Inc.	Method and apparatus for adjusting peak and valley acquisition rates of a signal received by a radio communication device
US5394441A (en) *	1993-02-05	1995-02-28	Motorola, Inc.	Method and apparatus for digitally tracking highs and lows of a signal received by a radio communication device
US5425056A (en) *	1993-03-23	1995-06-13	Motorola, Inc.	Method and apparatus for generating threshold levels in a radio communication device for receiving four-level signals
US5557482A (en) *	1994-12-19	1996-09-17	International Business Machines Corporation	Multipath channel apparatus and method for data storage devices and communications systems wherein a data path is selected based on errors
US5670951A (en) *	1995-07-17	1997-09-23	Motorola, Inc.	Radio communication device and method for generating threshold levels in a radio communication device for receiving four-level signals

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2972735A (en) *	1955-05-04	1961-02-21	Lab For Electronics Inc	Data processing
US3067422A (en) *	1958-12-24	1962-12-04	Ibm	Phase distortion correction for high density magnetic recording
US3243580A (en) *	1960-12-06	1966-03-29	Sperry Rand Corp	Phase modulation reading system
US3271750A (en) *	1962-12-13	1966-09-06	Ibm	Binary data detecting system
US3223115A (en) *	1963-01-04	1965-12-14	W A Kates Company	Flow regulating apparatus
US3405391A (en) *	1964-12-21	1968-10-08	Ibm	Double frequency detection system

1967
- 1967-08-14 US US660383A patent/US3537084A/en not_active Expired - Lifetime
1968
- 1968-08-09 GB GB38050/68A patent/GB1242576A/en not_active Expired
- 1968-08-13 NL NL6811499.A patent/NL163651C/xx not_active IP Right Cessation
- 1968-08-14 FR FR1604157D patent/FR1604157A/fr not_active Expired
- 1968-08-14 JP JP43057454A patent/JPS4949B1/ja active Pending

Also Published As

Publication number	Publication date
NL6811499A (fr)	1969-02-18
JPS4949B1 (fr)	1974-01-05
NL163651C (nl)	1980-09-15
GB1242576A (en)	1971-08-11
US3537084A (en)	1970-10-27
NL163651B (nl)	1980-04-15

Publication	Publication Date	Title
FR1604157A (fr)	1971-07-26
AT298283B (fr)	1972-03-15
FR1604159A (fr)	1971-07-26
AU416737B2 (fr)	1971-09-03
AU610966A (fr)	1968-11-28
AU1273466A (fr)	1969-04-24
BE692552A (fr)	1967-07-13
BE692492A (fr)	1967-06-16
BE710173A (fr)	1968-05-30
BE710071A (fr)	1968-07-30
BE709989A (fr)	1968-07-26
BE709270A (fr)	1968-07-12
BE709071A (fr)	1968-05-16
BE708863A (fr)	1968-07-02
BE708843A (fr)	1968-05-16
BE692922A (fr)	1967-07-20
BE692780A (fr)	1967-07-03
BE692779A (fr)	1967-07-03
BE710399A (fr)	1968-08-06
BE692577A (fr)	1967-06-16
BE692553A (fr)	1967-07-13
AU97666A (fr)	1968-08-01
BE692493A (fr)	1967-06-16
BE710680A (fr)	1968-08-13
AU1614766A (fr)	1968-07-11

Legal Events

Date	Code	Title	Description
1986-06-20	ST	Notification of lapse