JPS5644166A - Disk device - Google Patents

Disk device

Info

Publication number
JPS5644166A
JPS5644166A JP11977479A JP11977479A JPS5644166A JP S5644166 A JPS5644166 A JP S5644166A JP 11977479 A JP11977479 A JP 11977479A JP 11977479 A JP11977479 A JP 11977479A JP S5644166 A JPS5644166 A JP S5644166A
Authority
JP
Japan
Prior art keywords
servo signal
time
signal area
gate circuit
bit
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.)
Pending
Application number
JP11977479A
Other languages
Japanese (ja)
Inventor
Masayoshi Kamo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11977479A priority Critical patent/JPS5644166A/en
Publication of JPS5644166A publication Critical patent/JPS5644166A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To make it possible to select freely a track positioning information pattern by making constant the readout time of the servo signal area of a sector servo system and then by locking the system until the next servo signal area the time later. CONSTITUTION:On detection of servo signal areas 14a and 14b, sample gate circuit 44 is driven at input timing to permit a servo signal inputted from terminal 40 to pass through it only for time T and after time T passes, sample gate circuit 44 is closed to develop the current charged voltage of capacitor 46 at output terminal 47, thereby holding the next servo signal area in a constant state. In this case, two-bit, three-bit systems, etc., can be selectively used for the servo signal.
JP11977479A 1979-09-18 1979-09-18 Disk device Pending JPS5644166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11977479A JPS5644166A (en) 1979-09-18 1979-09-18 Disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11977479A JPS5644166A (en) 1979-09-18 1979-09-18 Disk device

Publications (1)

Publication Number Publication Date
JPS5644166A true JPS5644166A (en) 1981-04-23

Family

ID=14769872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11977479A Pending JPS5644166A (en) 1979-09-18 1979-09-18 Disk device

Country Status (1)

Country Link
JP (1) JPS5644166A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186270A (en) * 1981-04-27 1982-11-16 Iomega Corp Head position control method of and apparatus for disc driving mechanism
JPS5862870A (en) * 1981-10-12 1983-04-14 Toshiba Corp Magnetic disk device
JPS6252713A (en) * 1985-08-30 1987-03-07 Nec Corp Floppy disc

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57186270A (en) * 1981-04-27 1982-11-16 Iomega Corp Head position control method of and apparatus for disc driving mechanism
JPH0237025B2 (en) * 1981-04-27 1990-08-22 Iomega Corp
JPS5862870A (en) * 1981-10-12 1983-04-14 Toshiba Corp Magnetic disk device
JPH0440790B2 (en) * 1981-10-12 1992-07-06 Tokyo Shibaura Electric Co
JPS6252713A (en) * 1985-08-30 1987-03-07 Nec Corp Floppy disc

Similar Documents

Publication Publication Date Title
JPS5644166A (en) Disk device
JPS5216932A (en) Indication method for cash register
FR1499713A (en) Method and device for recording electrical signals
JPS5494016A (en) Information signal reproducer
GB1411028A (en) Fast response sample and hold circuit
SE7610646L (en) DEVICE FOR READING MAGNETIZATION SAMPLES
US3624638A (en) Signal-converting method and apparatus
JPS5323663A (en) Circuit device for detecting physical character of flowing media using supersonic method
ES449035A1 (en) Device for encoding a plurality of analogical signals
JPS573141A (en) Memory device for pipeline operation
SU363945A1 (en) DEVICE FOR MEASUREMENT AND REGISTRATION OF CHANGES IN MAGNETIC INDUCTION IN WIDE INTERVAL
JPS55160393A (en) Read voltage setting system for semiconductor memory
Dingwall et al. A simple device for recording several channels of binary data on paper tape.
SU381100A1 (en) 15THE UNION
JPS5210705A (en) Magnetic card
JPS5777961A (en) Data-processing device for process-gas chromatograph
BOHNER Long term prognosis for sample processing and sample recognition. Image processing branch
JPS5210767A (en) Clock tester
RU2042270C1 (en) Device for search of noise-like signal
JPS5680891A (en) Analog value memory device
JPS52135270A (en) Testing apparatus for semiconductor elements
JPS56119984A (en) Read circuit
JPS52122125A (en) Method and device for detecting correct focusing based on focusing information at different times
JPS56107167A (en) Peak voltage detection device
JPS56124187A (en) Display method in information retrieving device