JPS5654667A - Identifying device for existence of record information of record disk reproducer - Google Patents

Identifying device for existence of record information of record disk reproducer

Info

Publication number
JPS5654667A
JPS5654667A JP13149579A JP13149579A JPS5654667A JP S5654667 A JPS5654667 A JP S5654667A JP 13149579 A JP13149579 A JP 13149579A JP 13149579 A JP13149579 A JP 13149579A JP S5654667 A JPS5654667 A JP S5654667A
Authority
JP
Japan
Prior art keywords
existence
record
record information
level
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
JP13149579A
Other languages
Japanese (ja)
Other versions
JPS6242347B2 (en
Inventor
Minoru Kosake
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.)
Pioneer Video Corp
Universal Pioneer Corp
Original Assignee
Pioneer Video Corp
Universal Pioneer 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 Pioneer Video Corp, Universal Pioneer Corp filed Critical Pioneer Video Corp
Priority to JP13149579A priority Critical patent/JPS5654667A/en
Priority to US06/196,148 priority patent/US4340950A/en
Priority to DE19803038650 priority patent/DE3038650C2/en
Priority to GB8032959A priority patent/GB2061072B/en
Publication of JPS5654667A publication Critical patent/JPS5654667A/en
Priority to GB08318878A priority patent/GB2134356B/en
Publication of JPS6242347B2 publication Critical patent/JPS6242347B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To prevent the runaway of the motor or the pickup and furthermore realize an end detection, by detecting the FM carrier level of the aural information having no level difference between the inner and outer circumferences of a disk and thus performing an identification for existence of the record information. CONSTITUTION:A comparison 9 is given between the AGC output of the detecting circuit 8 which detects the level of the aural information signal and the reference voltage. And the comparison output is used for the identification signal for existence of the record information. For example, if the reference voltage is set at the earth level, the comparison output shows a high and low levels according to the presence or absence of the AGC output respectively.
JP13149579A 1979-10-12 1979-10-12 Identifying device for existence of record information of record disk reproducer Granted JPS5654667A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13149579A JPS5654667A (en) 1979-10-12 1979-10-12 Identifying device for existence of record information of record disk reproducer
US06/196,148 US4340950A (en) 1979-10-12 1980-10-10 Video disc player
DE19803038650 DE3038650C2 (en) 1979-10-12 1980-10-13 Apparatus for reproducing information read from a video disc
GB8032959A GB2061072B (en) 1979-10-12 1980-10-13 Video disc player
GB08318878A GB2134356B (en) 1979-10-12 1983-07-13 Video disc player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13149579A JPS5654667A (en) 1979-10-12 1979-10-12 Identifying device for existence of record information of record disk reproducer

Publications (2)

Publication Number Publication Date
JPS5654667A true JPS5654667A (en) 1981-05-14
JPS6242347B2 JPS6242347B2 (en) 1987-09-08

Family

ID=15059329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13149579A Granted JPS5654667A (en) 1979-10-12 1979-10-12 Identifying device for existence of record information of record disk reproducer

Country Status (1)

Country Link
JP (1) JPS5654667A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869375U (en) * 1981-11-02 1983-05-11 三洋電機株式会社 Accidental disk insertion alarm device
JPS58102340A (en) * 1981-12-11 1983-06-17 Teac Co Optical reproducing device
JPS58114353A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk-shaped recording medium reproducer
JPS58114354A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk reproducer
JPS58164056A (en) * 1982-03-20 1983-09-28 Pioneer Electronic Corp Disk player
JPS58164059A (en) * 1982-03-20 1983-09-28 Pioneer Electronic Corp Disk player
JPS59191140A (en) * 1983-04-12 1984-10-30 Onkyo Corp Device for discriminating inside and outside of information recording disk
JPS59180265U (en) * 1983-05-20 1984-12-01 三洋電機株式会社 Disk judgment circuit
JPS62101147U (en) * 1985-12-18 1987-06-27
JPS6427073A (en) * 1988-06-17 1989-01-30 Matsushita Electric Ind Co Ltd Reproducing device for disc-shaped recording medium
JPH0242677A (en) * 1989-03-17 1990-02-13 Sanyo Electric Co Ltd Disk reproducing device
JPH02118920A (en) * 1989-09-22 1990-05-07 Teac Corp Optical reproducing device
JPH06295518A (en) * 1994-03-23 1994-10-21 Sony Corp Disk player

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6485431A (en) * 1987-09-28 1989-03-30 Toshiba Corp Radio telephone system
JPH02129838U (en) * 1989-03-31 1990-10-25
DE102009050529B4 (en) 2009-10-23 2020-06-04 Volkswagen Ag Mobile device system for a motor vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054107A (en) * 1973-09-08 1975-05-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5054107A (en) * 1973-09-08 1975-05-13

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869375U (en) * 1981-11-02 1983-05-11 三洋電機株式会社 Accidental disk insertion alarm device
JPS58102340A (en) * 1981-12-11 1983-06-17 Teac Co Optical reproducing device
JPS6343814B2 (en) * 1981-12-11 1988-09-01 Teac Corp
JPS63865B2 (en) * 1981-12-26 1988-01-08 Matsushita Electric Ind Co Ltd
JPS58114354A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk reproducer
JPS58114353A (en) * 1981-12-26 1983-07-07 Matsushita Electric Ind Co Ltd Disk-shaped recording medium reproducer
JPS58164056A (en) * 1982-03-20 1983-09-28 Pioneer Electronic Corp Disk player
JPS58164059A (en) * 1982-03-20 1983-09-28 Pioneer Electronic Corp Disk player
JPH0452544B2 (en) * 1982-03-20 1992-08-24 Pioneer Electronic Corp
JPH0452545B2 (en) * 1982-03-20 1992-08-24 Pioneer Electronic Corp
JPS59191140A (en) * 1983-04-12 1984-10-30 Onkyo Corp Device for discriminating inside and outside of information recording disk
JPH0419611B2 (en) * 1983-04-12 1992-03-31 Onkyo Kk
JPS59180265U (en) * 1983-05-20 1984-12-01 三洋電機株式会社 Disk judgment circuit
JPS62101147U (en) * 1985-12-18 1987-06-27
JPS6427073A (en) * 1988-06-17 1989-01-30 Matsushita Electric Ind Co Ltd Reproducing device for disc-shaped recording medium
JPH0242677A (en) * 1989-03-17 1990-02-13 Sanyo Electric Co Ltd Disk reproducing device
JPH02118920A (en) * 1989-09-22 1990-05-07 Teac Corp Optical reproducing device
JPH0467256B2 (en) * 1989-09-22 1992-10-27 Teac Corp
JPH06295518A (en) * 1994-03-23 1994-10-21 Sony Corp Disk player

Also Published As

Publication number Publication date
JPS6242347B2 (en) 1987-09-08

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