• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A high-density information record comprises a stamped thermoplastic (e.g., vinyl) disc having a constant-width spiral surface groove, the center-to-center spacing of successive closely spaced convolutions of the groove spiral being substantially constant and independent of the recorded information. The recorded information appears as an information track constituting variations in the geometry of the groove bottom along its length. Playback apparatus employs a stylus having a tip conformed to be received in the disc groove in engagement with smoothly curved side walls of groove. As a disc-supporting turntable rotates, the stylus rides in the groove passing over successive dimension-varying information track elements in the groove bottom, which serve to vary the capacitance presented between a conductive electrode incorporated in the stylus tip and a reference conductor (e.g., a conductive surface of the disc-supporting turntable). The capacitance variations occurring during playback are translated into electrical signal variations by appropriate circuitry. Per illustrative embodiment, inexpensively replicated video disc of appreciable playing time is subject to playback by above-described techniques.
    公开号:SU974942A3
    申请号:SU782701501
    申请日:1978-12-20
    公开日:1982-11-15
    发明作者:Осборн Стэнли Томас
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the accumulation of information, and personalized devices for reproducing video signals.
    A device for reproducing a video signal containing a reproducing element mounted with the possibility of movement relative to the tape recording medium, rolled up into a roll C1] ·
    Such a device has a relatively simple design, however, it is not possible to provide sufficient simplicity of its maintenance process.
    It is also known a device for reproducing a video signal containing 15 video plate made with a spiral groove at the bottom of which is located a recording track having. a variable relief proportional to the vipeocygnal and a reproducing needle mounted 20 with the possibility of relative longitudinal movement in a spiral groove made with inclined opposite side walls having a curvilinear shape and mating 25 with the sides to reproduce ; giving needle C 2].
    This device allows for the relative simplicity of the process of its ob—. neither am I serving.
    The disadvantage of such a device is the significant error of the result ‘reproduction of the video signal.
    The purpose of the invention is to reduce the error of the result of the video signal.
    This goal is achieved by the fact that rep *. the exhausting needle is made with a ribbon-shaped electrode symmetrically located in it, the width of which is equal to the width of the recording track, while the reproducing needle is mounted with the ability to move at the same height from the inclined opposite inclined side walls of the spiral groove, the distance between which is constant along the spiral groove.
    The drawing schematically shows one of the possible options proposed—
    974942.
    whom device to play the video signal.
    The device contains a video plate
    1, made with a spiral groove
    2, at the bottom of which is located a track 5 of 3 records having a variable topography proportional to the video signal.
    The device also contains a reproducing needle 4 mounted with the possibility of relative longitudinal W movement in a spiral groove 2 made with inclined opposite side walls 5. The inclined opposite side walls 5 of spiral groove 2 have a curved 15 shape and are conjugated with the sides of the reproducing needle 4.
    The reproducing needle 4 is made with a tape-shaped electrode 6 symmetrically disposed in it, the width of which is about the width of the track 3 of the recording. In addition, the reproducing needle 4 is installed with the ability to move at the same height relative to the inclined opposite side walls 5 of the spiral 25 groove 2. Moreover, the distance between the inclined opposite side walls 5 is constant along the spiral groove 2.
    When the video signal is reproduced, a relative longitudinal movement of the reproducing needle 4 in the spiral groove 2 occurs due to the rotation of the video plate 1 located on the electrically conductive disk, not shown in the drawing. In the process of this movement, the reproducing needle 4 is always at the same height relative to the inclined opposite side walls 5 of the spiral groove 2. Moreover, between the reproducing needle 4 and the recording track 3 there is always some air gap. The formation of the video signal is ensured by changing the capacitance between the tape-shaped electrode 6 and the electrically conductive disk in accordance with the change in relief ”, track 3 of the recording.
    Using the invention allows to significantly reduce the error in the result of video signal playback.
    权利要求:
    Claims (1)
    [1]
    Claim
    A device for reproducing a video signal containing a video plate made with a spiral groove, the bottom of which is a recording track having a variable topography proportional to the video signal, and reproducing a needle mounted with the possibility of relative longitudinal movement in a spiral groove made about inclined opposite side walls having curvilinear shape and mating with the lateral sides of the reproducing needle, due to the fact that, in order to reduce the error of the result The playback / reproducing needle is made with a tape-shaped electrode symmetrically located in it, the width of which is equal to the width of the recording track, and the reproducing needle is installed with the ability to move at the same height relative to the opposite side walls of the spiral groove, the distance between which is constant along the spiral groove.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU974942A3|1982-11-15|Pdlayback video signal device
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    US4490752A|1984-12-25|Rotary recording medium having a selectively reproducible continuous stream of audio signals recorded thereon and reproducing apparatus therefor
    EP0400678A3|1991-01-23|Signal recording/reproducing apparatus
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    JP2904666B2|1999-06-14|Magnetic recording / reproducing device
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    US4359769A|1982-11-16|Signal reproduction apparatus
    SU457089A1|1975-01-15|Needle for pickup
    JP3106539B2|2000-11-06|Rotating head drum device
    同族专利:
    公开号 | 公开日
    GB1392201A|1975-04-30|
    DE2213918A1|1972-09-28|
    NL7203747A|1972-09-26|
    ES401078A1|1975-10-01|
    SE400134B|1978-03-13|
    DE2213918B2|1977-04-28|
    GB1392204A|1975-04-30|
    HK50576A|1976-08-13|
    US3783196A|1974-01-01|
    CA968277A|1975-05-27|
    FR2130504A1|1972-11-03|
    JPS534414B2|1978-02-17|
    SE402996B|1978-07-24|
    MY7600274A|1976-12-31|
    JPS50161212A|1975-12-27|
    IT950433B|1973-06-20|
    JPS5134721B1|1976-09-28|
    SE7501091L|1975-01-31|
    SE7501092L|1975-01-31|
    FR2130504B1|1976-01-16|
    JPS534415B2|1978-02-17|
    SE383220B|1976-03-01|
    MY7600273A|1976-12-31|
    ATA248472A|1978-01-15|
    HK50476A|1976-08-13|
    JPS50155203A|1975-12-15|
    AT345574B|1978-09-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB153300A|1919-11-01|1922-02-01|Emil Waltz|Improvements in the recording and reproduction of sounds by means of a sound succession relief|
    US1590399A|1922-06-02|1926-06-29|Tykocinski-Tyeociner Joseph|Method of and means for reproducing sound|
    US2422140A|1943-05-15|1947-06-10|Rca Corp|Frequency modulated recording and reproducing system|
    GB830839A|1957-05-03|1960-03-23|David Myer Maurice|Apparatus for the reproduction of gramophone records|
    US3165580A|1962-06-18|1965-01-12|Iit Res Inst|Reproducing transducer for moving dielectric record|
    DE1181275B|1962-09-19|1964-11-12|Grammophon Ges Mit Beschraenkt|Arrangement for scanning recordings on tape or plate-shaped recording media|
    US3287563A|1962-11-07|1966-11-22|Minnesota Mining & Mfg|Spatial coherent reproducing system|
    US3378645A|1964-09-29|1968-04-16|Belock Instr Corp|Recorded dielectric medium and recording and playback methods and apparatuses|
    US3479491A|1964-11-18|1969-11-18|Bendix Corp|Electrostatic reader head|
    DE1549080A1|1967-02-07|1971-03-04|Telefunken Patent|Carrier with at least two signals recorded in a common groove|
    JPS515561B1|1969-05-29|1976-02-20|US3711641A|1971-03-22|1973-01-16|Rca Corp|Velocity adjusting system|
    US3872265A|1972-10-10|1975-03-18|Rca Corp|Video disc transmission line and stylus RF return systems|
    US3873782A|1973-02-08|1975-03-25|Rca Corp|Capacitive protection coupling element for stylus electrode discharge|
    GB1461398A|1973-03-26|1977-01-13|Rca Corp|Pick-up arm apparatus for video disc players|
    GB1456233A|1973-03-26|1976-11-24|Rca Corp|Stylus arm pivot|
    US3870835A|1973-04-16|1975-03-11|Rca Corp|Stylus control apparatus for a video disc record player|
    US3872241A|1973-07-12|1975-03-18|Zenith Radio Corp|Video disc pickup with capacitive tracking|
    US3940574A|1973-12-20|1976-02-24|Xerox Corporation|Reproduction of information from information-bearing discs|
    US3897955A|1974-10-24|1975-08-05|Zenith Radio Corp|Adjustable stylus assembly|
    US3952145A|1974-11-12|1976-04-20|Rca Corporation|Pickup arm cartridge apparatus|
    US3930117A|1974-11-14|1975-12-30|Rca Corp|Video capacitive disc playback apparatus and stylus with dielectric coating therefor|
    GB1527124A|1975-03-07|1978-10-04|Emi Ltd|Modulated groove records|
    US4183060A|1976-03-19|1980-01-08|Rca Corporation|Capacitance distance sensor apparatus for video disc player/recorder|
    US4286283A|1979-12-20|1981-08-25|Rca Corporation|Transcoder|
    US4387407A|1981-08-27|1983-06-07|Rca Corporation|Video disc player having auxiliary vertical synchronizing generator|
    US4481616A|1981-09-30|1984-11-06|Rca Corporation|Scanning capacitance microscope|
    USRE32457E|1981-09-30|1987-07-07|Rca Corporation|Scanning capacitance microscope|
    US4418407A|1981-12-03|1983-11-29|Rca Corporation|Video disc pickup stylus|
    US4648087A|1984-06-28|1987-03-03|International Business Machines Corporation|Capacitive sensing employing thin film inductors|
    US4829507A|1984-09-14|1989-05-09|Xerox Corporation|Method of and system for atomic scale readout of recorded information|
    US4878213A|1984-09-14|1989-10-31|Xerox Corporation|System for recording and readout of information at atomic scale densities and method therefor|
    US4907195A|1984-09-14|1990-03-06|Xerox Corporation|Method of and system for atomic scale recording of information|
    FR2608825B1|1986-12-19|1994-12-30|Enertec|DEVICE FOR DETECTING THE POSITION OF A MAGNETIC HEAD|
    JPS63199975A|1987-02-12|1988-08-18|Tech Res & Dev Inst Of Japan Def Agency|Safety valve|
    US4826732A|1987-03-16|1989-05-02|Xerox Corporation|Recording medium|
    JPH029381U|1988-07-04|1990-01-22|
    US20030191442A1|2000-08-11|2003-10-09|The Procter & Gamble Company|Topsheet for contacting hydrous body tissues and absorbent device with such a topsheet|
    US9104251B1|2011-07-27|2015-08-11|Cypress Semiconductor Corporation|Full-bridge tip driver for active stylus|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US12667871A| true| 1971-03-22|1971-03-22|
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