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6879469 |
Adjusting mechanism for flying pickup head in data storage device
The present invention provides a tuning mechanism for flying pickup heads in data storage devices. The pickup device includes a coil, a pivot, a suspension, and a piezoelectric bender. The...
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5172370 |
Disk reproducing apparatus equipped with a pickup device capable of reading both sides of a disk
A disk reproducing device that has two guide rails disposed at both sides of a disk and that reads data recorded on both sides of the disk using a single pickup device (21) by moving the pickup...
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4877667 |
Optical disc with inhibited thermal distortion
An optical disc in which distortion due to temperature change is inhibited has a magnetic positioning disc 3 of specified diameter mounted at the center of the disc substrate 1 having an...
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4750164 |
Optical system driving device
In an optical system driving device, a support structure supporting an optical system holding member for movement relative to a base member is constituted by a plurality of bar-like support members...
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4722080 |
Transducer arm assembly for disk play-back machines
A tangential transducer arm assembly for disk play-back machines, whose pivot for movement in the plane which is parallel to the surface of a disk, is disposed upon a carriage for linear movement...
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4580258 |
Phonograph
Apparatus for correcting or compensating for the tracking error of the pivotally mounted (1) tone arm (23) of a phonograph includes a first intermediate member (9) to which said tone arm (23) is...
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4497053 |
Accurately tracking phonograph arm
A phonograph tone arm cartridge rotating system that keeps the cartridge perpendicular to the record groove radius by pivoting it with a belt and pulley linkage that does not change length or...
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4364121 |
Pickup cartridge for video disc player
A pickup cartridge is received in a compartment provided in a translatable carriage of a video disc player. The spacing between the cartridge and the compartment walls is such that access to the...
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4346466 |
Compensator for horizontal angular error of a record-player arm
A mechanical compensator for the horizontal angular error of the playing arm of a record player. A lever is mounted upon and rotatable in a horizontal plane about a first bearing affixed to the...
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4344168 |
Equipment for playing gramophone records and method of operation thereof
Equipment for playing gramophone records, and a method of operating same to reduce or eliminate so-called lateral tracking error comprising a turntable deck (10), a rotatable turntable (11)...
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4302834 |
Phonograph pickup arm
A phonograph pickup arm for use in disc records arranged to compensate for error in the tracking path. By use of adjacent curved surfaces in mounting and support members the point of rotational...
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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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4153256 |
Tangential tracking tonearm
A tonearm system is provided in accordance with the invention in which the tonearm is mechanically maintained in tangential tracking relationship in the groove in a record during the playing...
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4111433 |
Tone arm control system
The cantilevered stylus is provided with transducers capable of sensing the subsonic spectrum and a constant deflection of the stylus in the horizontal as well as in the vertical plane to provide...
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4066266 |
Attitude control device
A main system is provided with one or more subordinate systems pivotally connected thereto. The subordinate system can be programmed as desired to move in reference to the main system by the...
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4032158 |
Method and apparatus for indicating angular displacement
A tone arm for a record player having a mirror at one end is provided. Opposite the mirror are a light source and two detector elements. When the tone are pivots from a desired angle light from the...
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4004081 |
Optical videodisc pickup arm with moving coil drive means
The arm carrying the optical head that projects and focuses a light beam onto a record trace on a video disc record is provided with a tracking movement by mounting the arm on an...
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3940149 |
Tonearm linear-drive apparatus
There is disclosed a tonearm linear-drive apparatus wherein the pivotal point of the tonearm is moved in the linear direction which is parallel with the pickup stylus linearly moving direction...
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3924860 |
Pick-up arm assembly
A pick-up arm assembly comprising a pick-up arm carrying a stylus-holding member so that the length of the stylus-holding member intersects with the line connecting a fulcrum of the pick-up arm to...
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3920249 |
Pickup guidance mechanisms
A pickup guidance mechanism for gramophone disc records comprises a straight arm on which the pickup is carried and which is pivoted for rotation in a plane parallel to the record, a slave arm also...
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3865384 |
DISC RECORD PLAYER
A disc record player comprising a hole position adjusting mechanism mounted on a tone arm mounting board, the hole position adjusting mechanism including a first disc which is associated with the...
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3850435 |
GRAMOPHONE PICKUP GUIDANCE MECHANISMS
A pickup guidance mechanism for gramophone disc records comprising a pickup which can receive a stylus for engaging a groove on the record, an arm on which the pickup is carried for guidance across...
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3813100 |
CAM ACTION TANGENTIAL TRACKING TONE ARM PIVOT MECHANISM
A cam action tangential tracking tone arm pivot assembly and more particularly an improved tangential tracking tone arm pivot assembly for phonographs, working on the principle of simultaneous...
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3661397 |
ADDRESSING MECHANISM
A device for retrieving selected informational material stored in a groove formed in a rotatable recording element. A stylus, which is disposed above the recording element, is mounted at a fixed,...
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3485501 |
PHONOGRAPH TONE ARM ASSEMBLY
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3476394 |
TRAVERSING MECHANISM FOR PICK-UP TRANSDUCER ARM FOR DISC RECORDS
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3430965 |
PHONOGRAPH PICKUP ARM
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3313546 |
Supporting device for a phonograph pickup
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3232625 |
Phonograph pick-up arm
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3059934 |
Pick-up arm
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3051493 |
Phonograph pick-up device
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3005059 |
Tone arm mechanism
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2990185 |
Sound reproducing apparatus
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2983517 |
Phonograph tone arm
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2977126 |
Phonograph pickup arm
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2966360 |
Pick-up devices
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2946596 |
Pick-up arm for speaking machine
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2937877 |
Tone arm with straight line motion
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2862716 |
Tone arm for sound reproduction
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2837339 |
Phonograph pickup
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