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7328444 |
Shaft support mechanism of optical disk drive and skew adjustment mechanism of optical disk drive
A skew adjustment mechanism of an optical disk drive includes: a pair of rod-shaped guide shafts 32 a and 32 b that hold an optical pick-up unit 31 therebetween and guide the optical pick-up...
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7072274 |
Adaptive mounting system for data storage devices
An apparatus and method reduce the transfer of vibration to and/or from a data a data transfer mechanism in a data storage device by coupling an adaptive mount responsive to an electrical stimulus...
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6917520 |
Fixing device for data storage apparatus
A fixing device ( 1 ) for securing a data storage apparatus ( 50 ) in a mounting bracket ( 40 ) includes a screw ( 10 ), a grounding plate ( 20 ), and a spring gasket ( 30 ). The screw includes a...
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5247511 |
Compact sound record playing apparatus
A casing of a sound record playing apparatus includes of an upper body (1B) and a lower body (1A), and a vibration plate (16) is formed by reducing a thickness of a part of the upper body. An inner...
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4747092 |
Sound reproduction apparatus
In conventional audio disc playback apparatus the pick up arm is mounted on the turntable baseplate. Thus, the pick up arm is subject to vibration produced by the rotation of the turntable and its...
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4389718 |
Phonograph decoupling apparatus and method
A record playing apparatus has a plurality of small area contact mounting devices distributed around confronting surfaces of a lower and upper turntable platter, the lower turntable platter being...
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4358842 |
Record player
A record player is described having a turntable which is rotated by a pulsed motor energized from a motor drive circuit. The motor driving circuit includes a negative feedback servo loop which...
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4344167 |
Pickup device
A pickup device having an improved high fidelity in sound reproduction is provided. The pickup device comprises a vibration-absorbing member which is attached closely to a part of the head shell...
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4320492 |
Variable weight phonograph cartridge
To provide for adjustment of stylus tracking force appropriate to a particular tone arm with which a phonograph cartridge may be used, the cartridge is provided with a compartment into which one or...
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4279423 |
Phonograph decoupling apparatus
A record playing apparatus has a plurality of small area contact mounting devices distributed around confronting surfaces of a lower and upper turntable platter, the lower turntable platter being...
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4275888 |
Stabilizing and static removing attachment for phonograph pickup cartridge
An attachment for a phonograph pickup cartridge capable of removing static and stabilizing vibration of the cartridge body. A brush comprising bristles capable of engaging the inside of the grooves...
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4211422 |
Damping apparatus for damping the resonance of disc record tone arms
A damping apparatus for damping the resonance of a disc record tone arm, comprises first and second relatively movable members in engagement with energy absorbing material therebetween. One of...
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4198056 |
Protective device for record player
A protective device for pivotable attachment to the cartridge or pickup arm of a record player so that, when lowered onto a moving record disc, the record will pivot the device from a guard...
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4182517 |
Articulated parallelogram phonograph tonearm
An articulated phonograph tonearm includes a multipivot parallelogram linkage means for supporting the phonograph cartridge. The linkage means is mounted at one end of a rigid beam. The beam is...
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4147364 |
Non-vibration tone arm
A tone arm adapted to be disposed between a head shell and a holder for the tone arm, the tone arm comprising at least one hollow member contacting the head shell or the tone arm support and having...
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4127274 |
Tone arm system for record turntable
For use with a turntable structure for rotating a sound-recorded disc, an elongated tone arm is mounted pivotally intermediate its ends by a gimbal structure in which concentric rings are pivoted...
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4121837 |
Record player having a device for damping vibrations of a tone arm
A record player comprises a tone arm provided at the distal end thereof with a pickup cartridge, and a vibration damping device for damping a resonance of the tone arm. The damping device comprises...
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4113265 |
Tone pickup arm device keeping excellent dynamic lateral balance and damping effect
A pickup arm device having a dynamic damper and an adjustable dynamic lateral balancer both of which are provided between the head shell and the fulcrum at which the pickup arm is supported. The...
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4063285 |
Pickup device with a composite compliance arm
A pickup device for a video disk for extracting a signal from an information record medium having a high frequency signal recorded thereon in the form of an uneven groove, wherein a scanning body...
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3983318 |
Velocity correction system with damping means
One type of video disc reproducing system senses the capacitance between a stylus and a disc record to reconstruct the video information. The stylus includes a thin conductive element or electrode...
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3918722 |
Tone arm
A tone arm for a phonograph comprising an elongated member composed of carbonaceous fibers held in place by means of a binder. The invention also deals with a method of manufacturing such a tone...
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3909009 |
Tone arm and phonograph pickup assemblies
Our invention provides a simple, yet very effective connection between a phonograph pickup cartridge and a phonograph tone arm. Both cartridge and tonearm may be generally of standard construction...
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3760126 |
ELECTRET PHONOGRAPH PICKUP
An efficient kinetoelectric transducer is provided for use in a phonograph playback system. The transducer is positioned in the forward end portion of the pickup arm and includes a first electrode,...
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3691318 |
PRESSURE PICKUP TRANSDUCERS FOR MECHANICALLY STORED SIGNALS
A playback head for use with a record disc containing grooves whose walls undulate to constitute a spatial representation of the time variation of a signal to be reproduced, the head including a...
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3556537 |
TONE ARM
A tone arm is provided in which the tone arm is mounted on a horizontally disposed shaft, the shaft in turn being pivotally mounted in a vertical pivot assembly to allow vertical motion of the tone...
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3399900 |
Dynamic mechanism having a dampeer
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3366382 |
Apparatus for recording sound on or reproducing sound from disc records
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3360269 |
Miniaturized phonograph
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3321207 |
Damping means for a pickup cartridge
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3281154 |
Phonographs
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3168623 |
Piezoelectric transducer
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3042757 |
Stylus recording with superimposed high frequency excitation
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3031196 |
Tone arm damper
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3020361 |
Electromagnetic engraving apparatus
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3006651 |
Mounting means for phonograph tone arms
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3003772 |
Transducer assembly
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2983518 |
Pick-up cartridge and stylus supporting nosepiece therefor
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2983516 |
High fidelity transcription tone arm
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2962290 |
Phonograph pick-up
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2941810 |
Phonograph
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2938966 |
Electro-mechanical transducers
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2924461 |
Vibration damping means
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2868893 |
Dual needle phonograph pick-up
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2820854 |
Slide-in stylus assemblies
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2820853 |
Phonograph stylus assembly
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2819087 |
Pick-up device for record players
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RE14035 |
Title is not available
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