JPS57191875A - Tracking mute controller - Google Patents

Tracking mute controller

Info

Publication number
JPS57191875A
JPS57191875A JP7598581A JP7598581A JPS57191875A JP S57191875 A JPS57191875 A JP S57191875A JP 7598581 A JP7598581 A JP 7598581A JP 7598581 A JP7598581 A JP 7598581A JP S57191875 A JPS57191875 A JP S57191875A
Authority
JP
Japan
Prior art keywords
tracking
signal
muting
switches
analog
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
JP7598581A
Other languages
Japanese (ja)
Other versions
JPH0118516B2 (en
Inventor
Mitsuhiro Otogawa
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.)
Akai Electric Co Ltd
Original Assignee
Akai 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 Akai Electric Co Ltd filed Critical Akai Electric Co Ltd
Priority to JP7598581A priority Critical patent/JPS57191875A/en
Publication of JPS57191875A publication Critical patent/JPS57191875A/en
Publication of JPH0118516B2 publication Critical patent/JPH0118516B2/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
    • 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 The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To realize a simple constitution excluding a muting analog switch, by turning off all analog switches for tracking control by means of the mute signal and accordingly cutting off the transmission of the tracking signal. CONSTITUTION:The output of one of the NOR circuits 140 and 150 forming a logical circuit 220 together with an inverter 160 is inverted to a high level alternately and every time the reproduced signal of the discrimination signal fP3 with which the tracking signals fP1 and fP2 at both ends of a track is applied. Then one of the analog switches 70 and 90, 100 and 80 connected to the rectifiers 110 and 120 is turned on among the analog switches 70 and 80, 90 and 100 by which the signals fP1 and fP2 are switched complementarily. Thus a servo tracking output is produced from a differential amplifier 130. When a high-level muting signal TM is applied in the quick forwarding mode, etc., the outputs of the circuits 140 and 150 are not inverted into a high level. The switches 70-100 are not turned on to cut off the tracking signal. As a result, no muting analog switch is required for the subsequent devices after the amplifier 130.
JP7598581A 1981-05-19 1981-05-19 Tracking mute controller Granted JPS57191875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7598581A JPS57191875A (en) 1981-05-19 1981-05-19 Tracking mute controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7598581A JPS57191875A (en) 1981-05-19 1981-05-19 Tracking mute controller

Publications (2)

Publication Number Publication Date
JPS57191875A true JPS57191875A (en) 1982-11-25
JPH0118516B2 JPH0118516B2 (en) 1989-04-06

Family

ID=13592059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7598581A Granted JPS57191875A (en) 1981-05-19 1981-05-19 Tracking mute controller

Country Status (1)

Country Link
JP (1) JPS57191875A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011169696A (en) * 2010-02-17 2011-09-01 Asahi Kasei Electronics Co Ltd Magnetic sensor unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011169696A (en) * 2010-02-17 2011-09-01 Asahi Kasei Electronics Co Ltd Magnetic sensor unit

Also Published As

Publication number Publication date
JPH0118516B2 (en) 1989-04-06

Similar Documents

Publication Publication Date Title
JPS5784377A (en) Device for detecting obstacle
EP0354519A3 (en) Surround decoder
ES2076207T3 (en) SWITCHING CIRCUIT.
JPS57191875A (en) Tracking mute controller
JPS5781630A (en) Electronic circuit
JPS57148479A (en) Apparatus controlling system
JPS6420720A (en) Output buffer circuit
JPS5712467A (en) Radio-cassette device
JPS56141622A (en) Switching circuit
JPS5525121A (en) Switching control system of hybrid type double system controller
EP0343553A3 (en) Low voltage-controlled, stand-by electronic circuit with delayed switch off
JPS56135347A (en) Switch system on steering wheel
DE3278005D1 (en) Dual polarity switchable operational amplifier circuit
JPS5741704A (en) Sequence controller
ATE33434T1 (en) ADAPTIVE EQUALIZATION FOR MULTI-STAGE SIGNAL EQUALIZATION.
JPS57113404A (en) Signal secrecy maintaining device
JPS522348A (en) Input-output apparatus controlling system
JPS6489900A (en) Sound signal attenuation device
JPS57203317A (en) Channel selecting circuit
JPS6437019A (en) Plasma processor
EP0153413A4 (en) Sequence changeover system for profiling control apparatus.
JPS56157148A (en) Stereo and monaural change-over device
JPS55143821A (en) Automatic frequency control unit
JPS57208745A (en) Stereo demodulation circuit
JPS52121181A (en) Cascade control equipment