FR2470489B1 - BIDIRECTIONAL PULSE GENERATOR FOR DRIVING A DEVICE TRANSDUCER OF A READ NEEDLE - Google Patents

BIDIRECTIONAL PULSE GENERATOR FOR DRIVING A DEVICE TRANSDUCER OF A READ NEEDLE

Info

Publication number
FR2470489B1
FR2470489B1 FR8024425A FR8024425A FR2470489B1 FR 2470489 B1 FR2470489 B1 FR 2470489B1 FR 8024425 A FR8024425 A FR 8024425A FR 8024425 A FR8024425 A FR 8024425A FR 2470489 B1 FR2470489 B1 FR 2470489B1
Authority
FR
France
Prior art keywords
driving
pulse generator
bidirectional pulse
device transducer
read needle
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.)
Expired
Application number
FR8024425A
Other languages
French (fr)
Other versions
FR2470489A1 (en
Inventor
James Albert Wilber
Todd J Christopher
Kevin Charles Kelleher
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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from US06/095,310 external-priority patent/US4313062A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of FR2470489A1 publication Critical patent/FR2470489A1/en
Application granted granted Critical
Publication of FR2470489B1 publication Critical patent/FR2470489B1/en
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
    • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
    • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
    • H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
    • H03K4/69—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier
    • H03K4/72—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier combined with means for generating the driving pulses
    • H03K4/725—Push-pull amplifier circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/94—Generating pulses having essentially a finite slope or stepped portions having trapezoidal shape
FR8024425A 1979-11-19 1980-11-18 BIDIRECTIONAL PULSE GENERATOR FOR DRIVING A DEVICE TRANSDUCER OF A READ NEEDLE Expired FR2470489B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/095,310 US4313062A (en) 1979-11-19 1979-11-19 Bidirectional deflector driver for video disc
US9824379A 1979-11-28 1979-11-28

Publications (2)

Publication Number Publication Date
FR2470489A1 FR2470489A1 (en) 1981-05-29
FR2470489B1 true FR2470489B1 (en) 1986-01-17

Family

ID=26790072

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8024425A Expired FR2470489B1 (en) 1979-11-19 1980-11-18 BIDIRECTIONAL PULSE GENERATOR FOR DRIVING A DEVICE TRANSDUCER OF A READ NEEDLE

Country Status (3)

Country Link
DE (1) DE3043672C2 (en)
FR (1) FR2470489B1 (en)
GB (1) GB2064252B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1022225A (en) * 1964-10-16 1966-03-09 Ibm Waveform generating circuit
US3648067A (en) * 1970-07-30 1972-03-07 Bendix Corp Gated variable polarity reversing ramp generator
NL173343C (en) * 1972-03-29 1984-01-02 Philips Nv Apparatus for reading a disc-shaped record carrier with image and / or audio signals encoded in optical form.
GB1519974A (en) * 1974-08-22 1978-08-02 Rca Corp Disc record groove skipper apparatus
CA1131775A (en) * 1978-11-16 1982-09-14 John C. Bleazey Track skipper for video disc player

Also Published As

Publication number Publication date
DE3043672A1 (en) 1981-08-27
FR2470489A1 (en) 1981-05-29
GB2064252A (en) 1981-06-10
GB2064252B (en) 1983-11-30
DE3043672C2 (en) 1987-01-22

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Legal Events

Date Code Title Description
ST Notification of lapse