JPS62147974U - - Google Patents

Info

Publication number
JPS62147974U
JPS62147974U JP1987000045U JP4587U JPS62147974U JP S62147974 U JPS62147974 U JP S62147974U JP 1987000045 U JP1987000045 U JP 1987000045U JP 4587 U JP4587 U JP 4587U JP S62147974 U JPS62147974 U JP S62147974U
Authority
JP
Japan
Prior art keywords
piezoelectric element
terminal
output side
element driver
output
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
JP1987000045U
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS62147974U publication Critical patent/JPS62147974U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による無騒音サーチ軌跡図及び
波形図、第２図は本考案の無騒音スキツプサーチ
装置のブロツク図、第３図は第１図の倍速による
目標電圧波形図、第４図は第３図の出力波形図、
第５図は従来の高速再生時トラツクに対する再生
ヘツドの軌跡図及び波形図、第６図は高周波エン
ベロプ（ＲＦ ＥＮＶＥＬＯＰＥ）合成法に依る
従来の無騒音サーチ軌跡図及び波形図である。 （符号の説明）、１：１／Ｎ分周器、２：カウ
ンター、３：ラツチ回路、４：プリセツトカウン
ター、５：減算器、６，８：デイジタル／アナロ
グ変換器、７：線形直流増幅器、９：基準電圧発
生器、１０：圧電素子ドライバー、１１：圧電素
子。 Figure 1 is a noiseless search locus and waveform diagram according to the present invention, Figure 2 is a block diagram of the noiseless skip search device according to the present invention, Figure 3 is a target voltage waveform diagram at double the speed of Figure 1, and Figure 4 is a diagram of the target voltage waveform at double the speed of Figure 1. Output waveform diagram in Figure 3,
FIG. 5 is a trajectory diagram and waveform diagram of the reproducing head for a conventional high-speed reproduction track, and FIG. 6 is a conventional noiseless search trajectory diagram and waveform diagram based on a high frequency envelope (RF ENVELOPE) synthesis method. (Explanation of symbols), 1: 1/N frequency divider, 2: counter, 3: latch circuit, 4: preset counter, 5: subtracter, 6, 8: digital/analog converter, 7: linear DC amplifier , 9: Reference voltage generator, 10: Piezoelectric element driver, 11: Piezoelectric element.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] キヤツプスタンパルス信号ＣＦＧによりリセツ
トされ、１Ｎ分周器１の分周信号をカウントする
カウンター２の出力側をラツチ回路３を通じて減
算器５の比較入力端子に接続し、モード選択信号
ＭＳにより一定データ信号を出力するプリセツト
カウンター４の出力側を前記減算器５の基準入力
端子に接続すると共に、デイジタル／アナログ変
換器８及び基準電圧発生器９を通じて再生ボタン
信号ＰＢによりイネーブルされ、ヘツドスイツチ
ングパルス信号ＨＳによりリセツトされる圧電素
子ドライバー１０の基準電圧端子に接続し、前記
減算器５の出力側をデイジタル／アナログ変換器
６及び線形直流増幅器７を通じて圧電素子ドライ
バー１０の比較電圧端子に接続し且つ、減算器５
のサインビツト出力端子を圧電素子ドライバー１
０の正／逆選択端子に接続させて構成したことを
特徴とする圧電素子を利用した無騒音スキツプサ
ーチ装置。 The output side of a counter 2 which is reset by the capstan pulse signal CFG and counts the frequency divided signal of the 1N frequency divider 1 is connected to the comparison input terminal of the subtracter 5 through the latch circuit 3, and a constant data signal is output by the mode selection signal MS. The output side of the preset counter 4, which outputs connected to the reference voltage terminal of the piezoelectric element driver 10 which is reset by HS, the output side of the subtracter 5 is connected to the comparison voltage terminal of the piezoelectric element driver 10 through the digital/analog converter 6 and the linear DC amplifier 7; Subtractor 5
Connect the sine bit output terminal of piezoelectric element driver 1 to
1. A noiseless skip search device using a piezoelectric element, characterized in that it is connected to a positive/reverse selection terminal of 0.
JP1987000045U 1985-12-31 1987-01-05 Pending JPS62147974U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850018422U KR890004236Y1 (en) 1985-12-31 1985-12-31 Non-noise skip search apparatus

Publications (1)

Publication Number Publication Date
JPS62147974U true JPS62147974U (en) 1987-09-18

Family

ID=19247845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987000045U Pending JPS62147974U (en) 1985-12-31 1987-01-05

Country Status (2)

Country Link
JP (1) JPS62147974U (en)
KR (1) KR890004236Y1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453817A (en) * 1977-10-06 1979-04-27 Sony Corp Reproducing device of video signal
JPS54137222A (en) * 1978-04-18 1979-10-24 Sony Corp Displacement control system for magnetic converter head
JPS5539480A (en) * 1978-09-14 1980-03-19 Sony Corp Video signal regenerator
JPS5624887A (en) * 1979-08-08 1981-03-10 Matsushita Electric Ind Co Ltd Video tape recorder
JPS56127924A (en) * 1980-03-13 1981-10-07 Sony Corp Tape speed detecting circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453817A (en) * 1977-10-06 1979-04-27 Sony Corp Reproducing device of video signal
JPS54137222A (en) * 1978-04-18 1979-10-24 Sony Corp Displacement control system for magnetic converter head
JPS5539480A (en) * 1978-09-14 1980-03-19 Sony Corp Video signal regenerator
JPS5624887A (en) * 1979-08-08 1981-03-10 Matsushita Electric Ind Co Ltd Video tape recorder
JPS56127924A (en) * 1980-03-13 1981-10-07 Sony Corp Tape speed detecting circuit

Also Published As

Publication number Publication date
KR890004236Y1 (en) 1989-06-26
KR870011162U (en) 1987-07-15

Similar Documents

Publication Publication Date Title
JPS62147974U (en)
JPS60116634U (en) Magnetic tape running speed control circuit
JPS6211264U (en)
JPS59118111U (en) tape recorder
JPS60135840U (en) Tape speed control device
JPS582741U (en) recording device
JPS6137107U (en) PCM area data switching device using DTF servo
JPS6116701U (en) Sequential disk write current variable circuit
JPS6245731U (en)
JPS60159509U (en) Crosstalk prevention circuit
JPS6285904U (en)
JPS60132636U (en) intermittent drive circuit
JPH032441U (en)
JPS6276071A (en) Position signal generating device for magnetic recording and reproducing device
JPS5877810U (en) tape recorder
JPS60166842U (en) capstan servo circuit
JPS60194759U (en) magnetic recording and reproducing device
JPS59169599U (en) Voice coil motor drive circuit
JPS6456030U (en)
JPS6285909U (en)
JPS6072071U (en) video tape recorder
JPS60169702U (en) Audio noise removal circuit in VTR
JPS61193569U (en)
JPS5830953U (en) tracking circuit
JPH01133241U (en)