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| Number | Title | Issue Date |
| 7352683 | Information storage medium, recording method, reproducing method, and reproducing apparatus An information layer 0 comprises a system lead-in area, data lead-in area, data area, and middle area, an information layer 1 comprises a system lead-out area, data lead-out area, data area, and middle area, an end position of the data area of layer | 04/01/2008 |
| 7236432 | Apparatus for reading a data storage medium In an apparatus for reading a data storage medium, a control unit controls a first driving unit so as to enable the first driving unit to drive a carrier frame loaded with the data storage medium thereon to move back and forth between first and second limit position... | 06/26/2007 |
| 6195713 | Polling and displaying updated audio disk track number in a portable computer A computer system incorporating capabilities for displaying the audio disk track number when the computer system is playing an audio disk. The computer system determines if a disk is present in the disk drive. If a disk is present, the computer system det... | 02/27/2001 |
| 6108515 | Interactive responsive apparatus with visual indicia, command codes, and comprehensive memory functions An interactive conversational apparatus provides seamless uninterrupted conversational responsiveness to a variety of user inputs utilizing a storage media having a plurality of temporally related data storage tracks containing interactive conversational ... | 08/22/2000 |
| 5995077 | Portable, wearable read/write data device A wearable electronic data collection and storage device is used for recording field medical data. The device is small, portable and easily worn, similar to a watch or medallion and is capable of interfacing with a large, external accessing system. The de... | 11/30/1999 |
| 5646920 | Digital optical compact disc and compact disc player An improved digital optical compact disc incorporates a further information storage element or area for storage and retrieval of track play selection information. The further storage area is comprised of defined information containing regions whose shadin... | 07/08/1997 |
| 4698702 | Playback apparatus for rotary recording medium Playback apparatus for a rotary recording medium includes a playback head for sensing signals from a plurality of tracks which are formed on a rotary recording medium in such a manner that the front end of recording operation continues to the last end the... | 10/06/1987 |
| 4613967 | Disc player An apparatus for reproducing information signals recorded in spiral or coaxial tracks of a record disc includes a pick-up device operative, upon scanning of a track of the disc while the latter is rotated, to reproduce the information signals recorded in ... | 09/23/1986 |
| 4580257 | Dual drive system for phono pickup arm A dual drive system for an automatic record player of a type in which programmed music selection can be carried out. The drive system includes a mechanical first drive system for mechanically driving the pickup arm and an electromagnetic second drive syst... | 04/01/1986 |
| 4530083 | Rotatable memory disk apparatus A rotatable memory disk apparatus is provided with a memory disk with a number of tracks driven by a motor and a control circuit for positioning an optical head on an addressed track. The apparatus includes a speed control device for rotating the disk at ... | 07/16/1985 |
| 4528653 | Record player with automatic music search function A record player is equipped with a tonearm control which enables the record player to perform an automatic music search, that is, the pickup device of the tone arm may be automatically controlled to be set down at the beginning of a selected song. It may ... | 07/09/1985 |
| 4480280 | Rotary recording medium reproducing apparatus address search A rotary recording medium reproducing apparatus for reproducing a rotary recording medium recorded with a program information signal and different kinds of address signals having mutually different predetermined codes in correspondence with the program in... | 10/30/1984 |
| 4437180 | Apparatus for controlling pickup arm in record or video disk player A pickup arm controlling apparatus for an audio record or a video disk player, comprising an optical detecting device provided at the foremost end portion of a pickup arm for detecting a non-recorded groove portion, arranged so that a reproduction of the ... | 03/13/1984 |
| 4437181 | Automatic record playing apparatus having a tone arm position detecting device A record disc playing apparatus has a tone arm position detecting device which comprises a position detection part comprising a plurality of reading elements aligned in line, a code part comprising a plurality of rows of code patterns shifted in the direc... | 03/13/1984 |
| 4408310 | Simplified sound reproducing device driven by a spring motor A winding knob and a winding wheel for winding a drive spring are received in alignment around and along the center shaft and are capable of being coupled together in both directions of winding and their axial movement. A reverse slippage restraining post... | 10/04/1983 |
| 4307418 | Video disc player system for correlating stylus position with information previously detected from disc A video disc playback system for detecting field number information recorded on a sectored video disc and representing stylus location, and for correlating presently received field number information with previously received field number information. Pres... | 12/22/1981 |
| 4138663 | Optical reader for information discs equipped with means for automatic access to the information The optical reader, for information discs of which the items of information are locatable by addresses previously recorded on each of the grooves forming the track, comprises a device for counting the number of grooves traversed during search phases which... | 02/06/1979 |
| 4114893 | Gramophone equipment Gramophone equipment incorporating photoelectric scanning to detect bands between record tracks; an electronic counter to count the detected bands; a selector for making track selections; an electronic memory for storing selections; control circuitry for ... | 09/19/1978 |
| 4079261 | Detector for distinguishing between recorded and unrecorded bands of a phonograph record A detector for scanning the surface of a record on a phonograph turntable to distinguish between recorded and unrecorded bands by detecting physical differences on the record surface. The detector illuminates a portion of the record surface and senses lig... | 03/14/1978 |
