Matches 1 - 50 out of 121 1 2 3 >
Match Document Document Title
6947254 Interchangeable cartridge data storage system for devices performing diverse functions  
A system for exchanging digital data among a plurality of hand-held computer devices. Digital signals are written by a first hand-held device to a mini-cartridge that mini-cartridge is...
6411584 Cartridge loading apparatus and methods of manufacturing and operating same  
A cartridge unloading apparatus for a disk drive having a cartridge loading end, a remote end, and a base plate. The apparatus is employed for tiltably unloading the disk from a spindle magnet with...
RE37084 Objective lens driving apparatus for optical disc player  
Disclosed is an objective lens driving apparatus having a holder 9 holding an objective lens 1 and connected to a base 17 through at least four linear members 13, such that the holder 9 can be...
5703730 Lens drive apparatus  
A lens drive apparatus for driving vertically and horizontally a lens component by employing magnets and coils, includes a lens component, a lens support member, a mass balancing member for...
5533000 Disk apparatus including a disk driving member adapted to hold two different size disks  
A turn table in an optical disk apparatus in accordance with the present invention is provided with a mount section for use in a mini disk (MD) at the top portion thereof and another mount section...
5175724 Capacitance disc information retrieval system  
A system for retrieving information on a random basis from a disc having the information thereon in a spiral path around the disc. The system includes a turntable rotatable about a central spindle...
5124974 Mechanism for adjusting the position of pickup in a disc player  
A mechanism for adjusting the position of a pickup used in a disc player. The mechanism includes a slider which is driven along a path in the radial direction of a turntable. The slider has a...
5103344 Optical pickup  
An optical pickup, wherein tracking coils are bonded to respective opposite corner parts of two square-tube-shaped focusing coils symmetrically with respect to the optical axis of a lens...
4878214 Objective lens supporting device for optical pickup  
An objective lens supporting device for an optical pickup including an objective lens opposed to an optical disc, a lens holder for holding the objective lens, a plurality of supporting rods formed...
4831612 Optical disc reading apparatus  
An optical disc reading apparatus having a reduced overall height and simplified structure. The disc drive motor is mounted with its output shaft extending downward. A turntable is fixed to the...
4802081 Elongated phonograph pick-up head with snap-together construction  
A stereo phonograph pick-up head or cutter has a slim elongated construction utilizing an elongated mount having connector pins at its rear end. Two elongated pole pieces fit into the mount, each...
4571717 Adapter for a plug-in cartridge  
An adapter for a phonographic tone arm for interchangeable mounting of a plug-in cartridge of a linear tracking arm to a head shell of an offset tone arm. The plug-in cartridge has a predetermined...
4542494 Arrangement for fastening a phonograph stylus holder to the tone arm  
Arrangement for fastening a phonographs stylus holder to its tone arm. The arrangement has a plurality of pins affixed to the tone arm, and sleeves inserted in openings in the stylus holder. The...
4534022 Phonograph pick-up with improved shield grounding  
A grounding technique for a screening shell of a phonograph cartridge. A connector pin is offset with respect to other pins of the cartridge so as to be in direct contact with one of the walls of...
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...
4488285 Stylus lifter locking mechanism for video disc player  
The stylus arm carriage is provided with a rotatably-mounted torsional spring element. When the carriage is driven to an off-record home position, a pad mounted in the player above the carriage...
4481614 Velocity correction apparatus for disc record player  
A velocity correction apparatus for a disc record player includes a permanent magnet attached to a cartridge mounted pickup arm and an electromagnetic coil secured in a cartridge supporting...
4358841 Video disc player having stylus protecting apparatus  
The video disc player includes a selectively-actuated stylus arm lifter. When the player is in the PLAY mode, a forward bias is applied to the lifter electromagnet to cause it to lower the stylus...
4340957 Cartridge and headshell assembly  
An improved cartridge and head shell assembly which permits separate but simultaneous adjustment of the cartridge overhang, vertical tracking angle and lateral tracking angle by means of a single...
4340949 Processor controlled video disc servo system  
A video disc player is described wherein the signal pickup stylus is mounted in a carriage assembly that is advanced across the record in discreet steps, each step traversing a fixed number of...
4333174 Transducer displacement apparatus for video disc player  
In a video disc player, a mechanism, responsive to opening of the carriage lid, retracts a carriagemounted transducer to accommodate a pickup cartridge in a compartment provided in a pickup arm...
4325132 Unitary phonograph cartridge and head assembly  
A unitary headshell and phonograph cartridge assembly in which the vertical angle and overhang dimension can both be independently adjusted, thereby to permit the cartridge assembly to be used with...
4323998 Video disc locked groove corrector  
A video disc player having an adaptive bumper apparatus which tracks the signal pickup stylus to maintain a fixed spatial relation therebetween. The bumper is fixed to an electromechanical...
4276635 Pickup cartridge and mounting device therefor  
A pickup cartridge and a pickup cartridge mounting device therefor wherein a plug protrusion of tetragonal sectional area is formed at the rear end of a pickup cartridge, a recess of tetragonal...
4271335 Pickup cartridge having a resilient biasing member for holding an elongated stylus holder against a support surface thereof  
An improved type of pickup cartridge comprising a stylus assembly, a cartridge body case to receive the stylus assembly therein, and pole pieces provided to support the stylus assembly in the...
4270758 Lever operated stylus guard for phonograph pick-up cartridge  
A stylus guard assembly for use with a phonograph pick-up cartridge, which assembly includes a cam member, a manually operated lever with a pivot operating arm and walls providing detent surfaces....
4269416 Head shell for record player tonearms  
A head shell for a record player tonearm comprises a composite material essentially consisting of a thermoplastic resin and graphite powder. The composite material is prepared by kneading the...
4259550 Acoustic device with floating vibrating means  
An acoustic device comprising a main body having a magnet attached thereto, a vibrating means disposed to cooperate with said magnet of said main body for converting an electrical vibration into a...
4212490 Head shell for pick-up arms and method of making same  
A head shell for pick-up arms and method of making same comprising a flat part for mounting a cartridge formed by machine-pressing a part of a tubular member and a connector mounted at the opening...
4205856 Pickup cartridge  
A pickup cartridge for reproducing disk-shaped record carriers having a spiral groove as an information track carrying audio and/or video information. A horn-shaped resilient seal member prevents...
4143248 High fidelity phonograph pick-up arm  
A phonograph pick-up arm having a shank which is at least partly made of a composite material consisting of high strength fibres embedded in a synthetic resin, a head for a connection and...
4135722 Record-cutting system  
A cutting transducer is mounted on a radius arm positioned in the same relationship with a turntable as is conventional for the tone arm of a record player. Cross-feed is established by a screw...
4124217 Signal pick-up apparatus for reproducing a recording disc  
In a signal pick-up apparatus for reproducing a recording disc, a pick-up cartridge casing is detachably loaded at a predetermined position on a pick-up apparatus structure. An arm is rotatably...
4121836 Stylus cartridge suspension for record players  
There is described a novel suspension for mounting a phonograph transducer cartridge which has a stylus engageable in the groove of a phonograph record disc. The suspension mounts the cartridge for...
4119844 Phonograph cartridge and sensor assembly  
A phonograph cartridge is provided for use on a programmable phonograph turntable or changer. The cartridge includes a housing for mounting an electro-mechanical transducer on the end of a...
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...
4065134 Needle assemblies for phonograph pickup cartridges  
A needle assembly for a phonograph pickup cartridge wherein the pickup needle coupler and shank are movable relative to a drive member which is disposed between the needle shank and the...
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...
4053161 Stylus arm lifting/lowering apparatus for a video disc player  
A video disc player includes a stylus arm carrying a stylus at one end thereof. The stylus is subject to engagement with a grooved record rotatably disposed on a turntable for playback. The other...
4049280 Pickup cartridge  
A pickup cartridge for a video disc player encloses a stylus arm unit comprising a stylus arm carrying a stylus at one end thereof. A connector plate is secured to the other end of the stylus arm...
4040635 Releasable stylus arm magnetic coupling  
A pickup cartridge for a video disc player encloses a stylus arm unit comprising a stylus arm carrying a stylus at one end and a magnetizable connector plate secured at its other end. A permanent...
4038682 Video disc player apparatus for establishing electrical connection between a stylus electrode and a signal processing circuit  
A video disc player includes a carriage supporting signal processing circuitry having an electrical input terminal. A pickup cartridge which is removably mounted in said carriage contains a stylus...
4030124 Video disc playback system and pickup cartridge therefor  
A pickup cartridge encloses a stylus arm carrying a stylus at one end thereof. The other end of the stylus arm is secured to a connector plate via a compliant member. A spring releasably clamps the...
4030123 Stylus adjustment apparatus for a video disc player  
A system for playing back prerecorded signals from a spirally-grooved and rotatable record includes a carriage mounted for lateral motion relative to a motorboard of the system in correlation with...
4029322 Pickup arm assembly  
A phonograph pickup arm assembly in which one end of the arm is fitted with a quick-connect socket for receiving a cartridge shell. The socket is slotted and the cartridge shell includes a pin for...
4013845 Temperature compensating reproducing system  
A record reproducing system comprising a displacement detection type cartridge and a reproducing circuit for converting the output signal of the displacement detection type cartridge into audio...
3966216 Cartridge assembly for record player tone arm  
A cartridge assembly for a tone arm of a record player is provided with a movable cartridge-mounting plate so that the cartridge holder can be quickly connected and disconnected to the electrical...
3963864 Pickup arm assembly  
A pickup arm has an intermediate portion interconnecting a first end portion and a second end portion. An end of the first end portion is secured to a supporting structure of a disc record player....
3957272 Cartridge shell for phonograph pickup  
A cartridge shell for supporting a phonograph cartridge on the end of a tone arm is provided which is formed of a sheet of carbonaceous fibers bonded together by a synthetic resin into an L-shaped...
3956581 Pickup arm apparatus  
A conductive pickup arm has a first portion and a further portion. One end of the pickup arm first portion is secured to a player supporting structure by a pickup arm support. During playback, (1)...
Matches 1 - 50 out of 121 1 2 3 >