• 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:
    Electronic damping of a deflectable videotape transducer is effected by apparatus including a deflectable support arm for supporting the transducer and deflecting it in response to an electrical deflection signal. A signal transducer generates a deflection velocity signal representative of instantaneous deflection velocity of the transducer. A feedback loop receives the deflected velocity signal, converts it to a damping signal, and applies the damping signal to the deflectable support arm to dampen vibrations therein.
    公开号:SU1003775A3
    申请号:SU772468101
    申请日:1977-03-18
    公开日:1983-03-07
    发明作者:Ф.Равизза Раймонд
    申请人:Ампекс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    to the input of the second amplifier, and the output of the second voltage adder is connected to the input of the first amplifier and connected via a potentiometer to the input of the first voltage adder.
    The drawing shows a device for oblique-line recordings of HI reproduction on a magnetic tape, one of the variants.
    The device contains a frequency compensator 1, whose inputs are connected to the generator input 2 of the tuning signal and to the output of the driver 3 from the recording track. Shaper 3 of the bias signal from the recording platform is connected by an input to a magnetic head 4 fixed on the core, body 5 rigidly connected to the displacement sensor 6 from the recording track and to the first guide drum 7 mounted rotatably with respect to the fixed second guide drum (not shown). In this case, the holder 5 is made in the form of a bimorph piezoelectric ceramic element that is cantilever-fixed on the first guide drum 7 with the possibility of bending. The device also contains the first amplifier 8, the outputs of which are connected to the holder 5, the potentiometer 9 and the amplifier 10 connected in series, the first voltage adder 11, the differentiator 12, the low-pass filter 13, the phase shifter 14, the third amplifier 15 and the second voltage adder 16, input which is connected to the output of the frequency compensator 1. In this case, the displacement sensor 6 from the recording track is connected to the input of the second amplifier 10, and the output of the second voltage accumulator 16 is connected to the input of the first amplifier 8 and connected via a potentiometer 9 th first adder 11 stresses.
    The device works as follows.
    During playback, the signal of the magnetic head 4 is fed to the shaper 3 of the signal offset from the recording track, acting on the frequency compensator 1, which is also affected by the generator 2 of the tuning signal. Frequency compensator 1 produces a frequency-compensated bias signal arriving at the second voltage adder 16, to which a blanking signal is applied to the third amplifier 15. Output signal
    The second voltage adder 16, through the first amplifier 8, acts on the holder 5, which moves the magnetic head 4 in such a way that its displacement from the recording track is reduced.
    The use of the proposed device makes it possible to significantly reduce the displacement of the magnetic head from the recording WAY.
    权利要求:
    Claims (2)
    [1]
    1.Lazarev V.I. and others. Magnetic recording television images. M. -L.,. State Energy Publishing House, 1963, p. 72-79.
    [2]
    2. US patent number 3829892,
    cl. 360-73, 08.13.74. Prototype).
    &
    ; g
    类似技术:
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    US4093885A|1978-06-06|Transducer assembly vibration sensor
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    SU698049A1|1979-11-15|Device for stabilizing the tension of magnetic tape in tape-driving mechanism
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    JPS5888851A|1983-05-27|Magnetic recording and reproducing device
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    同族专利:
    公开号 | 公开日
    GB1579855A|1980-11-26|
    BE852629A|1977-07-18|
    CA1123512A|1982-05-11|
    DE2711935C3|1987-07-30|
    HK11986A|1986-02-28|
    JPS5931773B2|1984-08-04|
    NL177951C|1985-12-16|
    US4080636A|1978-03-21|
    NL7702542A|1977-09-21|
    ATA187777A|1983-03-15|
    DE2711935B2|1981-02-19|
    JPS52117107A|1977-10-01|
    IT1073209B|1985-04-13|
    NL177951B|1985-07-16|
    FR2344913A1|1977-10-14|
    AT388464B|1989-06-26|
    FR2344913B1|1980-05-09|
    DE2711935A1|1977-10-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3126535A|1961-12-27|1964-03-24|Transducer positioning system |
    US3184662A|1962-07-09|1965-05-18|Sperry Rand Corp|Closed loop servo system with dual channel degenerating feedback|
    US3501732A|1964-05-04|1970-03-17|Endevco Corp|Semiconductive piezoresistive transducer having a grooved support with electrical contacts|
    US3526726A|1967-09-27|1970-09-01|Ampex|Piezoelectric transducer assembly for positioning a magnetic record/reproduce head|
    SU402914A1|1971-06-07|1973-10-19|SHAKING MAGNETIC HEAD|
    JPS5227996B2|1971-08-30|1977-07-23|
    JPS5650329B2|1972-05-22|1981-11-28|
    US3787616A|1972-06-05|1974-01-22|Newell Ind|Time base error correction system and method|
    SU421041A1|1972-06-09|1974-03-25|
    NL7409513A|1974-07-15|1976-01-19|Philips Nv|Servo system for controlling position of magnetic reading head - has selection signals written into data tracks with simultaneous reading of adjacent tracks|US4203140A|1974-11-26|1980-05-13|Sony Corporation|Helical scan VTR with deflectable head|
    JPS598891B2|1974-11-26|1984-02-28|Sony Corp|
    US4288824A|1975-10-14|1981-09-08|Sony Corporation|Deflectable transducer mounting with damper for video signal reproducing apparatus|
    JPS6059787B2|1975-10-14|1985-12-26|Sony Corp|
    JPS6118252B2|1976-08-24|1986-05-12|Sony Corp|
    JPS5335511A|1976-09-13|1978-04-03|Sony Corp|Recorder-reproducer for picture signal|
    GB1560023A|1976-10-05|1980-01-30|Sony Corp|Automatic magnetic-head scan tracking arrangements|
    NL7702815A|1977-03-16|1978-09-19|Philips Nv|METHOD OF ADJUSTING THE POSITION OF A WRITING OR READING HEAD AND A DEVICE FOR PERFORMING THE METHOD.|
    JPS54307U|1977-06-04|1979-01-05|
    GB1580008A|1977-06-04|1980-11-26|Sony Corp|Automatic head tracking system|
    US4141047A|1977-09-12|1979-02-20|Sony Corporation|Method and apparatus for correcting tracking errors of a transducer which scans parallel record tracks|
    US4169276A|1977-10-17|1979-09-25|Ampex Corporation|Drive circuit for controlling a movable magnetic head|
    JPS62632B2|1977-10-24|1987-01-08|Sony Corp|
    JPS6127808B2|1977-12-29|1986-06-27|Sony Corp|
    JPS6123569B2|1977-12-29|1986-06-06|Sony Corp|
    JPS6142325B2|1978-01-17|1986-09-20|Sony Corp|
    JPS5923226Y2|1978-02-10|1984-07-11|
    US4318142A|1978-03-23|1982-03-02|Ampex Corporation|Automatically compensated movable head servo circuit and method|
    US4163993A|1978-03-23|1979-08-07|Ampex Corporation|Continuous slow motion automatic tracking system|
    US4319289A|1978-03-23|1982-03-09|Ampex Corporation|Movable head automatic position acquisition circuit and method|
    CA1147456A|1978-03-23|1983-05-31|Raymond F. Ravizza|Automatically compensated movable head servocircuit and method|
    US4197564A|1978-03-23|1980-04-08|Ampex Corporation|Automatically calibrated RF envelope detector circuit|
    JPS5528264U|1978-08-14|1980-02-23|
    US4199989A|1978-09-18|1980-04-29|Hughes Aircraft Company|Cold damping of mechanical structures|
    US4188645A|1978-11-02|1980-02-12|Burroughs Corporation|Piezoelectric servo for disk drive|
    JPS55157124A|1979-05-21|1980-12-06|Matsushita Electric Ind Co Ltd|Rotary magnetic head device|
    JPS639434B2|1979-05-31|1988-02-29|Sony Corp|
    JPS6319930B2|1980-03-13|1988-04-25|Sony Corp|
    JPS6326456B2|1980-05-08|1988-05-30|Sony Corp|
    US4374402A|1980-06-27|1983-02-15|Burroughs Corporation|Piezoelectric transducer mounting structure and associated techniques|
    JPS6242334B2|1980-07-03|1987-09-08|Matsushita Electric Ind Co Ltd|
    JPS5827886B2|1980-07-17|1983-06-13|Sony Corp|
    US4471392A|1982-03-31|1984-09-11|Rca Corporation|Automatic scan tracking with ringing control|
    US4536806A|1982-04-02|1985-08-20|Ampex Corporation|Microprocessor controlled multiple servo system for a recording and/or reproducing apparatus|
    JPH0154774B2|1983-04-14|1989-11-21|Victor Company Of Japan|
    JPH054115Y2|1983-11-18|1993-02-01|
    US4532802A|1984-05-31|1985-08-06|International Business Machines Corporation|Apparatus for analyzing the interface between a recording disk and a read-write head|
    US4647999A|1984-12-03|1987-03-03|Datatape Inc.|Frame for positioning transducing head|
    FR2579379B1|1985-03-19|1988-02-26|Souriau & Cie|CONNECTING ELEMENT BETWEEN AN ELECTRICAL CONDUCTOR AND A CONNECTOR CONTACT|
    US5057953A|1988-03-31|1991-10-15|Applied Magnetics Corporation|Head slider suspension assembly load beam having a fundamental mode vibration characteristic in the range of about 2000 hertz to about 4000 hertz|
    EP0372481B1|1988-12-06|1995-08-09|Mitsubishi Denki Kabushiki Kaisha|Magnetic recording and reproducing apparatus|
    US5021906A|1989-10-31|1991-06-04|International Business Machines Corporation|Programmable air bearing slider including magnetic read/write element|
    US5384676A|1991-04-19|1995-01-24|Mitsubishi Denki Kabushiki Kaisha|Magnetic head position controller in a magnetic recording and reproducing apparatus|
    JPH04128058U|1991-05-08|1992-11-20|
    US5378974A|1993-07-02|1995-01-03|The United States Of America As Represented By The Secretary Of The Air Force|Vibration damping system|
    US6310746B1|1999-06-23|2001-10-30|Read-Rite Corporation|Piezoelectric vibration damping for disk drives|
    KR20020020758A|1999-06-30|2002-03-15|추후|Active damping of actuator bearing translational mode|
    US6590748B2|2000-06-06|2003-07-08|Seagate Technology Llc|Combined servo-tracking and preload-controlling microactuator|
    US6807332B1|2000-11-06|2004-10-19|Western Digital , Inc.|Piezoelectric actuated optical switch|
    US6752250B2|2001-09-27|2004-06-22|Northrop Grumman Corporation|Shock, vibration and acoustic isolation system|
    DE102005060779B4|2005-12-16|2008-07-10|Eads Deutschland Gmbh|power generator|
    US8302456B2|2006-02-23|2012-11-06|Asylum Research Corporation|Active damping of high speed scanning probe microscope components|
    DE102006046593B4|2006-09-30|2009-12-10|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Device for reducing vibrations of a structure|
    US9383388B2|2014-04-21|2016-07-05|Oxford Instruments Asylum Research, Inc|Automated atomic force microscope and the operation thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US66858076A| true| 1976-03-19|1976-03-19|
    US05/677,827|US4080636A|1976-03-19|1976-04-16|System for damping vibrations in a deflectable transducer|
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