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4466023 |
Video disk player simulator, method and apparatus
A system and method for simulating the operation of a video disk player playing an interactive video disk, which comprises a video tape player, a timing code reader, a monitor, a computer, and an...
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4466024 |
Two-sided use of floppy disks
A reliable, fast, easily operated system for enabling the use of both sides of existing single-sided floppy diskette units involving creation of new disk-positioning (DP) holes centered at a...
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4464695 |
Magnetic tape cassette apparatus having an over-travel pushbutton movement
A magnetic tape-cassette apparatus comprising at least two push-buttons which have individual functions in the apparatus, when individually pushed in to produce a normal travel of their push-button...
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4464694 |
Tape recorder
A tape recorder consisting of a main body, a cassette lid which opens and closes the cassette room and touch-type switches provided on the cassette lid to execute various types of operation modes.
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4463397 |
Cassette tape recorder
Playback, recording, and stop button plates are slidably mounted in parallel on a base plate. When pressed, the recording button plate engages the playback button plate so as to be locked to a...
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4462553 |
Endless cassette tape for video tape recorder
An endless cassette tape for a video tape recorder has a length which is the sum of the length of the outer rim of a section including a supply reel and a take-up reel and at least the length of...
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4458281 |
Magnetic tape head cleaning apparatus
A housing of substantially the same shape and size of a magnetic tape cassette is adapted to be inserted within the cassette receiving aperture of the magnetic tape playback/recording unit. Three...
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4458275 |
Method and device for testing units for processing magnetic disks
The method of testing units for the processing of magnetic disks comprises the insertion of a suitably modified disk into the testing unit and the reading of this disk when operations controlled by...
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4454550 |
Cleaning cartridge assembly for a cassette cleaner
A cartridge having a housing removably mounted in a cleaning cassette. The housing has a first pivotal connecting member to pivotally engage a matching connecting means in the structure, and a...
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4450491 |
Operation lever mechanism for magnetic tape recording/reproducing apparatus
An operation lever mechanism for a tape player which comprises an array of operation levers including a play-operation lever for advancing a head plate alone, a stop-operation lever for retiring...
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4450495 |
Portable acoustic device
A portable stereo system includes a body unit having a tape player and a hinge portion and loudspeaker units having matching hinge portions. The player and loudspeakers can be coupled by a hollow...
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4447840 |
2-Speed magnetic-tape cassette apparatus
In a magnetic-tape cassette apparatus with an electrical power supply (43, 62), a power switch (5, 40, 61) for switching the power supply on and off, a capstan (24) for tape transport, and a speed...
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4445158 |
Cleaning head assembly for a cassette cleaner
A "U" shaped mounting head in which is mounted a removeable retaining device adapted to retain a cleaning pad therein. The retaining device has sidewalls that fit against side surfaces of a recess...
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4445159 |
Chassis for video tape recorder
A chassis for video tape recorder molded integrally with a fiber-reinforced plastic composition is light in weight and can meet the requirements for attainment of high precision. It is possible to...
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4437131 |
Locking device for the tape cassette compartment of a magnetic tape apparatus
A locking device for the pivotable tape cassette compartment of a magnetic tape apparatus comprising a radially open detent groove in the side wall of the cassette compartment and a cooperating...
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4434447 |
Cassette tape recorder
A cassette tape recorder comprises a multi-function eject lever rotatably mounted on a base board. The eject lever is provided with a guide pin for pushing a cassette toward the heads by engagement...
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4430680 |
Reciprocating member control mechanism in tape player
In a magnetic tape recording/playing device, a reciprocating member control mechanism, in which reciprocating members employed in the channel change mechanism, FF (fast forward)/REW (rewind)...
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4430279 |
Process for producing zirconia yttria grinding media used for grinding magnetic coating powder
This invention discloses zirconia-containing grinding media in the preparation of magnetic disc coating and method for producing such grinding media. The grinding media essentially consists of...
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4428010 |
Drive mode switching device for magnetic tape recorder/reproducer
A tape recorder/reproducer of the automatic reverse type includes fast forward and reverse buttons which are switchably connected to the fast tape speed direction controls so that the desired...
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4428005 |
Mode selecting device for a video signal reproducing apparatus
A mode selecting device for a video tape reproducing apparatus of the type in which a magnetic tape is transported past rotary magnetic heads, includes a control shaft adapted to rotate about an...
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4425999 |
Security seal apparatus
There is disclosed a security seal apparatus for securing information recorded on a recording medium such as a floppy disc or recording tape which incorporates an aperture therein. The security...
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4425595 |
Locking device of a starting position searching mechanism
A locking device for locking a starting position searching mechanism which comprises a slide plate for sliding when being pushed by a fast-forwarding operational rod or rewinding operational rod...
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4423455 |
Tape counter for multispeed tape recorder/player
A tape counter for a multispeed tape recorder having a multispeed tape transport, a speed switch for designating a specific tape speed of the transport, a tape running detector for generating count...
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4420783 |
Mode selector assembly for use in tape recorders
A mode selector assembly for use in a tape recorder or the like is disclosed herein, for placing the tape recorder or the like into a selected operating mode by means of a rotating member upon the...
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4413299 |
State indicating device in a rotary recording medium reproducing apparatus
A state indicating device in a reproducing apparatus for reproducing a rotary recording medium recorded with signals which has been accommodated within a case, where the case has a space for...
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4413328 |
Storage subsystems employing removable media and having a digital display on each recorder
In a storage subsystem employing removable record media such as contained in a cartridge, each storage recorder has a multidigit alphanumeric display located immediately above a cartridge receiver....
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4413291 |
Cassette tape player-recorder
A cassette tape player-recorder of slot-in type which includes first detecting means for detecting the insertion of cassette into the slot, second detecting means for detecting correct placement of...
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4412263 |
Recording head protective overlay and cleaning arrangement
A recording head protective overlay arrangement with an alarm capability is provided. The protective overlay is continuously replenishable between the recording surface of the recording head and...
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4411008 |
Method and apparatus for controlling tape transport apparatus in search sequence
Method and apparatus for controlling tape movement to a given position by utilizing the combination of periodic determinations of tape position by calculation based on reel speed ratios, and...
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4409634 |
Tape recorder
A tape recorder capable of detecting and discriminating the position of an operating button by the touch of a finger tip comprises a projected wall having a predetermined configuration positioned...
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4408241 |
Cleaning device
A cleaning device for magnetic tape heads comprises a mylar tape on which is deposited a layer of a low-tack adhesive. A dacron fabric is bonded to the mylar tape by the adhesive layer. This dacron...
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4408238 |
Magnetic head arm assembly
A cantilever magnetic head support arm assembly for a disk file comprises a flat beam structure and a means of damping the structure against out-of-plane vibrations. The damping means comprises a...
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4408237 |
Magnetic record/playback apparatus
A magnetic record/playback apparatus in which a member to be operated upon ejecting operation is provided with a projection; a head changeover member provided on a head plate for changing pressing...
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4408243 |
Tape cleaner
A tape cleaner for cleaning debris from the surface of a recording tape uses a tape wiping or cleaning medium advanced across the surface of the recording tape at a speed correlated with a selected...
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4403369 |
Internal caddy cleaning apparatus
The walls of a video disc caddy are vibrated at or near their resonant frequency to dislodge foreign matter adhering to the inside surfaces of the walls. The separated foreign matter is collected...
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4404611 |
Bidirectional cassette transport
The present invention is directed to an improved bidirectional cassette transport wherein the various operating modes can be achieved through the use of a single lever. The device is characterized...
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4404607 |
Magnetic reproducing apparatus
A magnetic reproducing apparatus includes reproducing operation slider movably mounted on a main chassis. A head lever, which is positioned at approximately a right angle to the reproducing...
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4404610 |
Mode selection assembly for use in tape recorders or the like
A mode selection assembly for use in tape recorders or the like is disclosed which includes a rotating member (for example, a gear) rotatable in an intermittent manner and bearing a plurality of...
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4399527 |
Dictation display device
A display device for use in a dictation transcription station comprising a plurality of selectively actuatable lighted segments (10). A pair of shift registers (25, 26) are used to retain...
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4398279 |
Digital display for dictation transcriber for indicating remaining tape within discrete segments of dictation
A display for a record playback apparatus where the record medium includes end and instruction indicia signals recorded thereon, of which the end signals delimit segments of dictation on the...
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4394697 |
Magnetic recording/reproducing apparatus
A magnetic record/reproduce apparatus comprising drive force transmitting means including levers that are actuated by one drive motor to drive a reproducing magnetic medium and a recording magnetic...
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4390918 |
Operating mode switching mechanism for a tape recorder
An operating mode switching mechanism for a tape recorder for effecting various operations in response to operation of manually operating keys comprises a single solenoid for causing a rotary wheel...
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4390980 |
Demultiplexing plural data streams
A method is presented for demultiplexing two or more streams of data multiplexed in a phase shifted arrangement. Demultiplexing is accomplished by multiplying the composite signal by an individual...
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4388712 |
Combined electronic apparatus indicator and cassette tape transducer apparatus, particularly combined radio-recorder for automotive use
To provide ample space for display of output of electrical signals, typically frequency and operating conditions of a radio receiver, tape recorder, and other electronic components, a display panel...
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4385335 |
Method and apparatus for centering magnetic disks
A centering device (10) to effect registration of a magnetic disk (11) with respect to the protective envelope (12) within which the disk (11) is encased. The centering device (10) has a receiving...
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4384311 |
Method for cleaning the disc surface and the head support structure in a magnetic disc drive
In a magnetic disc drive, there is disclosed a method for cleaning the magnetic disc surfaces and the heads. The heads are loaded and caused to fly on the disc surfaces. The spindle motor speed is...
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4383285 |
Memory error signal devices for tape cassettes with memory
For cassettes with memory for storing data relating to the cassette or the tape therein, memory error signal devices having two states representing that the cassette memory has an error or has no...
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4378578 |
Mode control device for tape recorders
A mode control device for a cassette tape recorder in which operational functions are combined with a small number of operational buttons or keys. A slidably-mounted electric source operation lever...
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4378576 |
Removable disc media
An apparatus is disclosed for mounting a magnetic disc on a rotatable spindle. The apparatus includes a molded plastic disc-carrying hub having a circumferential collar, a central housing...
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4370549 |
Electronic counter circuit for tape recorder
An electronic counter circuit counts pulse signals generated according to the rotation of a takeup shaft of a tape recorder to display a value corresponding to a run of a tape. In the electronic...
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