JPS5492155A - Retrieval device - Google Patents

Retrieval device

Info

Publication number
JPS5492155A
JPS5492155A JP16046877A JP16046877A JPS5492155A JP S5492155 A JPS5492155 A JP S5492155A JP 16046877 A JP16046877 A JP 16046877A JP 16046877 A JP16046877 A JP 16046877A JP S5492155 A JPS5492155 A JP S5492155A
Authority
JP
Japan
Prior art keywords
unit
moving amount
address
inputted
information
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
Application number
JP16046877A
Other languages
Japanese (ja)
Other versions
JPS6048055B2 (en
Inventor
Mitsuro Moriya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP52160468A priority Critical patent/JPS6048055B2/en
Publication of JPS5492155A publication Critical patent/JPS5492155A/en
Publication of JPS6048055B2 publication Critical patent/JPS6048055B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE: To retrieve desirable information at a high speed with high precision from information recorded at high density, by detecting a relative moving amount between a recording disk and pickup and its direction and by performing the arithmetic process of the moving amount and the address on the recording track on the disk.
CONSTITUTION: Picture information recorded on recording disk 3 is detected by pickup unit 4 with reflected light of beam 2 from light source 1 such as a laser, and unit 4 generates a pulse equivalent to the moving amount relative to disc 3. The output of unit 4 is inputted to movement detection circuit 11 which detects the moving amount and direction and address reader 13 which reads out the address of information under regeneration. The address of the desirable information is inputted to input unit 12 and output signal A of unit 12 and the output of unit 13 are processed by arithmetic unit 14 to obtain a preset value, which is inputted to up-down counter 15. The value counted from signals relating the moving amount and the direction from circuit 11 and the preset value in counter 15 is D/A-converted 16 and pickup driving element 18 is driven to retrieve the desirable information.
COPYRIGHT: (C)1979,JPO&Japio
JP52160468A 1977-12-29 1977-12-29 search device Expired JPS6048055B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52160468A JPS6048055B2 (en) 1977-12-29 1977-12-29 search device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52160468A JPS6048055B2 (en) 1977-12-29 1977-12-29 search device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP16219384A Division JPS60121535A (en) 1984-07-31 1984-07-31 Detector for track crossing direction or shift amount of light beam

Publications (2)

Publication Number Publication Date
JPS5492155A true JPS5492155A (en) 1979-07-21
JPS6048055B2 JPS6048055B2 (en) 1985-10-25

Family

ID=15715590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52160468A Expired JPS6048055B2 (en) 1977-12-29 1977-12-29 search device

Country Status (1)

Country Link
JP (1) JPS6048055B2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56124168A (en) * 1980-03-04 1981-09-29 Matsushita Electric Ind Co Ltd Device for reproducing information
JPS57147168A (en) * 1981-03-05 1982-09-10 Matsushita Electric Ind Co Ltd Jumping scanner
JPS581853A (en) * 1981-06-26 1983-01-07 Hitachi Ltd Position detector for pickup head
JPS5877037A (en) * 1981-10-30 1983-05-10 Hitachi Ltd Recorder and reproducer of optical information
JPS5891536A (en) * 1981-11-25 1983-05-31 Hitachi Ltd Accessing system of digital optical disk
JPS58137168A (en) * 1982-02-10 1983-08-15 Hitachi Ltd Disk device
JPS5948870A (en) * 1982-09-10 1984-03-21 Hitachi Ltd Random access device of video disk player
JPS6139239A (en) * 1984-07-28 1986-02-25 Sony Corp Optical disc player
JPS61196431A (en) * 1985-02-25 1986-08-30 Sony Corp Optical disk player
US5048001A (en) * 1989-04-07 1991-09-10 Matsushita Electric Industrial Co., Ltd. Load correction method for an information retrieval apparatus
US5109366A (en) * 1988-04-14 1992-04-28 Matsushita Electric Industrial Co., Ltd. Slip-off preventing tracking control apparatus
JPH09134531A (en) * 1996-10-16 1997-05-20 Hitachi Ltd Information memory apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110701A (en) * 1974-07-16 1976-01-28 Mitsumi Electric Co Ltd Dochokairo
JPS5117410A (en) * 1974-08-05 1976-02-12 Mansei Kogyo Kk YOMITORISOCHI
JPS5132217A (en) * 1974-09-13 1976-03-18 Teac Corp
JPS51117005A (en) * 1975-04-07 1976-10-14 Hitachi Ltd Tracking absorption equipment
JPS5215340A (en) * 1975-07-25 1977-02-04 Canon Inc Image read method and equipment
JPS52152704A (en) * 1976-04-23 1977-12-19 Thomson Brandt Optical data disk reader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110701A (en) * 1974-07-16 1976-01-28 Mitsumi Electric Co Ltd Dochokairo
JPS5117410A (en) * 1974-08-05 1976-02-12 Mansei Kogyo Kk YOMITORISOCHI
JPS5132217A (en) * 1974-09-13 1976-03-18 Teac Corp
JPS51117005A (en) * 1975-04-07 1976-10-14 Hitachi Ltd Tracking absorption equipment
JPS5215340A (en) * 1975-07-25 1977-02-04 Canon Inc Image read method and equipment
JPS52152704A (en) * 1976-04-23 1977-12-19 Thomson Brandt Optical data disk reader

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231428B2 (en) * 1980-03-04 1987-07-08 Matsushita Electric Ind Co Ltd
JPS56124168A (en) * 1980-03-04 1981-09-29 Matsushita Electric Ind Co Ltd Device for reproducing information
JPS57147168A (en) * 1981-03-05 1982-09-10 Matsushita Electric Ind Co Ltd Jumping scanner
JPH039554B2 (en) * 1981-03-05 1991-02-08 Matsushita Electric Ind Co Ltd
JPS581853A (en) * 1981-06-26 1983-01-07 Hitachi Ltd Position detector for pickup head
JPS5877037A (en) * 1981-10-30 1983-05-10 Hitachi Ltd Recorder and reproducer of optical information
JPS5891536A (en) * 1981-11-25 1983-05-31 Hitachi Ltd Accessing system of digital optical disk
JPH0551973B2 (en) * 1981-11-25 1993-08-04 Hitachi Ltd
JPS58137168A (en) * 1982-02-10 1983-08-15 Hitachi Ltd Disk device
JPS5948870A (en) * 1982-09-10 1984-03-21 Hitachi Ltd Random access device of video disk player
JPS6139239A (en) * 1984-07-28 1986-02-25 Sony Corp Optical disc player
JPS61196431A (en) * 1985-02-25 1986-08-30 Sony Corp Optical disk player
US5109366A (en) * 1988-04-14 1992-04-28 Matsushita Electric Industrial Co., Ltd. Slip-off preventing tracking control apparatus
US5048001A (en) * 1989-04-07 1991-09-10 Matsushita Electric Industrial Co., Ltd. Load correction method for an information retrieval apparatus
JPH09134531A (en) * 1996-10-16 1997-05-20 Hitachi Ltd Information memory apparatus

Also Published As

Publication number Publication date
JPS6048055B2 (en) 1985-10-25

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