JPS5651067A - Access circuit - Google Patents

Access circuit

Info

Publication number
JPS5651067A
JPS5651067A JP12499179A JP12499179A JPS5651067A JP S5651067 A JPS5651067 A JP S5651067A JP 12499179 A JP12499179 A JP 12499179A JP 12499179 A JP12499179 A JP 12499179A JP S5651067 A JPS5651067 A JP S5651067A
Authority
JP
Japan
Prior art keywords
fed
comparison
circuit
output
program number
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
JP12499179A
Other languages
Japanese (ja)
Inventor
Masayuki Yoshitome
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12499179A priority Critical patent/JPS5651067A/en
Publication of JPS5651067A publication Critical patent/JPS5651067A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To enable to detect desired data quickly and accurately, by controlling a means of digital comparison for each bit, and a drive means such as a pickup with a control signal introduced from the compared output.
CONSTITUTION: A digital comparison circuit 49 is fed for program number information and desired program number in playback in binary code from a program number detection circuit 48 and a keyboard 50 respectively. The code comparison in this comparison circuit 49 is made every bit, and the result of comparison is fed to a D/A converter 52. The output of the converter 52 is fed to a voltage controlled oscillator circuit 53, and the output is fed to an exciting timing generation circuit 54. On the other hand, the reversing signal C output of the comparison circuit 49 is fed to the direction of rotation switching terminal of the exciting timing generation circuit 54. Thus, the desired data can quickly and accurately be detected.
COPYRIGHT: (C)1981,JPO&Japio
JP12499179A 1979-09-28 1979-09-28 Access circuit Pending JPS5651067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12499179A JPS5651067A (en) 1979-09-28 1979-09-28 Access circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12499179A JPS5651067A (en) 1979-09-28 1979-09-28 Access circuit

Publications (1)

Publication Number Publication Date
JPS5651067A true JPS5651067A (en) 1981-05-08

Family

ID=14899195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12499179A Pending JPS5651067A (en) 1979-09-28 1979-09-28 Access circuit

Country Status (1)

Country Link
JP (1) JPS5651067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885979A (en) * 1981-11-14 1983-05-23 Sony Corp Disk reproducer
EP0272090A2 (en) * 1986-12-15 1988-06-22 Pioneer Electronic Corporation Address search method for video disk player or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885979A (en) * 1981-11-14 1983-05-23 Sony Corp Disk reproducer
JPH0332156B2 (en) * 1981-11-14 1991-05-10 Sony Corp
EP0272090A2 (en) * 1986-12-15 1988-06-22 Pioneer Electronic Corporation Address search method for video disk player or the like

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