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| Number | Title | Issue Date |
| 7327839 | Cables, systems and methods for wiring a structure for telephone service A method for wiring an architectural structure for telephone service includes providing a cable. The cable includes a sheath and first and second pairs of conductor members. The sheath includes first and second longitudinally extending sheath passages and a partitio... | 02/05/2008 |
| 7161877 | Method and circuit for generating a tracking error signal using differential phase detection A circuit for generating tracking error signal using differential phase detection, comprising a quadrant photodetector for receiving optical signal and inducting splitting signal A, splitting signal B, splitting signal C and splitting signal D, two adders for genera... | 01/09/2007 |
| 7106668 | Disk drive apparatus A disk drive apparatus for a disk having helically-formed or concentric circle-like formed tracks includes a spindle motor for controlling a rotation of the disk; a pick-up device for recording or reproducing information on or from the disk; a stepping motor for mov... | 09/12/2006 |
| 7096237 | Recording and/or reproduction apparatus, file management method and providing medium The invention provides a file system which can record and/or record AV signals simply onto and/or from a disc in a home. The file system is incorporated in a recording and/or reproduction apparatus which uses a disc type recording medium, and records management info... | 08/22/2006 |
| 7085200 | Stepping motor controlling method and disk apparatus A disk apparatus includes a pick-up for reading/writing signals from/on a disk; a pick-up base provided with the pick-up; a traverse motor for moving the pick-up in a radial direction of said disk; a feed screw rotated by the traverse motor and provided with a threa... | 08/01/2006 |
| 7035172 | Method of logically erasing contents of a CD-RW disc while preserving disc ID A method is designed to logically erase contents of a CD-RW disc in response to an erase command. The CD-RW disc is optically rewriteable, and has a program area and a PMA area. The program area is recorded with the contents in the form of tracks. The PMA area is re... | 04/25/2006 |
| 7027978 | Voice recording and reproducing apparatus, information processing apparatus, and recording medium having recorded an information processing program A system control portion of a voice data recording and reproducing apparatus converts inputted voice signals into digitized voice data, adds header information stored in a table composed of a rewritable nonvolatile storage medium to the converted voice data and reco... | 04/11/2006 |
| 6934773 | Computer system for enabling an optical drive to self-test analog audio signal paths when no disc is present A computer system includes a chassis, a processor mounted in the chassis, a memory coupled to the processor, and an optical disc drive coupled to the processor and the memory, the optical disc drive comprising a removable storage media, the optical disc drive being ... | 08/23/2005 |
| 6881949 | Method and system for synchronizing information specific to a location on a surface with an external source An apparatus including sensors that aid in the location of a stylus within the groove of a rotating record. The location of the stylus corresponds to a portion of an audio waveform present at a unique location within the groove. Using the correspondence between the ... | 04/19/2005 |
| 6873577 | Optical head position control for optical recording device a data player or a method in which a reading and/or writing head is positioned according to anyone of 3 methods or combinations thereof: Calculating a desirable speed curve to position the head from a first to a second position and adjust the speed of the head's mov... | 03/29/2005 |
| 6760281 | Push-button speed change device for CD ROM drive A push-button speed change device for CD ROM drive is included in a CD ROM drive having a system casing and a front panel, and the front panel has indicating light, CD loader, and a plurality of control buttons. By means of each control button, it individually contr... | 07/06/2004 |
| 6657928 | Disc player with floating lock mechanism and select mechanism An idler plate 14 turns in accordance with a rotational direction of a worm wheel (drive gear) 12, which constantly engages with a worm 11 provided on a shaft of a loading motor 10. Three idler gears 15 to 17, which constantly engage with the worm wheel 1... | 12/02/2003 |
| 6542446 | Optical disc, and optical disc accessing apparatus capable of securing pickup to base A portable optical disc apparatus made into a slim-type apparatus and an optical disc adapted for the portable optical disc apparatus are disclosed. In the portable optical disc apparatus, a pickup is secured onto a base, and a movable member in the picku... | 04/01/2003 |
| 6490235 | Storage and reproduction apparatus with rotary control element for controlling operations A storage and reproducing apparatus includes a signal processing block, a memory, a reproduction block, an operation block, and a control block. The signal processing block converts a sound signal, into a digital signal. The memory stores a digital signal... | 12/03/2002 |
| 6470063 | Method and device to update data transfer count for disc drive Method and device to update a data count in a data transfer operation in which a data counter generates an intermediate count value in accordance with a first amount of data to be transferred to a storage media; and an augmenter augments the intermediate ... | 10/22/2002 |
| 6421305 | Personal music device with a graphical display for contextual information An audio system for playing recordings of audio programming includes a relatively large display device on which contextual information about the audio programming may be displayed. The contextual information is recorded on the same recording medium as the... | 07/16/2002 |
| 6333901 | Disc reproducing apparatus for determining a track jump A disc reproducing apparatus is provided which is adapted to scan information tracks to read information recorded on an information recording medium. This disc reproducing apparatus comprises: determining means capable of determining an actually happened ... | 12/25/2001 |
| 6236631 | Frame number detection for signals produced from optical disk A frame number detector for detecting frame number receives input signals consisting of a plurality of sectors. A sector consists of a plurality of frames, a frame including synchronizing signals and data, the synchronizing signals having a pattern used t... | 05/22/2001 |
| 6233079 | Light-signal transmitting apparatus, light-signal receiving apparatus, light-signal transfer apparatus and light-signal transfer method A light-signal transfer apparatus capable of continuously reproducing signals even if the transfer passage is temporarily intercepted, the apparatus being structured in such a manner that a delay memory delays time-sequential digital data to generate digi... | 05/15/2001 |
| 6229777 | Information recording medium, apparatus and control method therefor An information recording and control method and apparatus for a recording medium disc having information previously recorded thereon. New information is overwritten at least a portion of the previously recorded information in a recording area of the recor... | 05/08/2001 |
| 6226236 | Information data transfer system An information data transferring system comprising a circuit for reading information data as reproduction data and subcode data and demodulating the read data, a circuit for subjecting the information data to an error correction process, a circuit for gen... | 05/01/2001 |
| 6119259 | Method and apparatus of improving reliability of a descrambling operation in a DVD player A method and apparatus for improving reliability of a descrambling operation of data in a DVD player. The method includes the steps of establishing a bit value corresponding to a predetermined portion of ID data in each of sectors of the data to be descra... | 09/12/2000 |
| 5943303 | Disk playback device and method of controlling the device A chassis has rotatably mounted thereon a magazine for accommodating a plurality of disks as positioned upright. A playback portion and an insertion-discharge portion are arranged respectively inside and outside the magazine radially thereof. Roller units... | 08/24/1999 |
| 5930226 | Storage medium storing plural data of plural types in reproduction order with identification information A recording apparatus generates a plurality of pieces of data to be recorded on a storage medium, and to be reproduced in a plurality of modes of reproduction; generates identification information indicating a reproduction mode; and writes the pieces of d... | 07/27/1999 |
| 5745474 | Apparatus and method for reproducing data from disk, method for recording data on disk and disk An apparatus for reproducing data recorded on a disk (10) has a head part (12) for reading data from the disk, storage parts (17, 18) for storing the data read by the head part, and a control part (15) which pre-reads the data from the disk and stores the... | 04/28/1998 |
| 5248888 | Process for positioning a record changing device having reflective markers A method of adjusting the moveable unit of a positioning device having a light source and a photodetector for scanning markers identifying positions at which the moveable unit is to be located includes the steps of accurately and manually positioning the ... | 09/28/1993 |
| 5150340 | Disc apparatus for reading out information from disc recording medium A disc apparatus includes a drive mechanism rotatively driving a disc recording medium and having a motor and a chucking mechanism provided on a shaft of the motor, a head reading out information from the disc recording medium, a disc loading detector for... | 09/22/1992 |
| 4707815 | Apparatus for a record player distinguishing between recorded and unrecorded portions of a disc An unrecorded portion detecting apparatus for a record player. The apparatus has a device such as light-emitting diode for applying light to disc surface and a pair of light-sensitive devices such as phototransistors for sensing light reflected by the dis... | 11/17/1987 |
| 4523305 | Magnetically recordable label for mechanically-defined information-bearing discs There is described, among other things, an accessory for a phonograph record disc which has a center hole axially of a label portion of the disc. The accessory comprises a sheet which is of circular annular shape and has a diameter not substantially great... | 06/11/1985 |
| 4495533 | Disk memory indexing system In accordance with one embodiment of this invention, the second pulse P2 of pulse pair P1, P2 on a disk memory servo track is used as the optional pulse which conveys information relating to the status of the track. In this manner, the possibility of erro... | 01/22/1985 |
| 4471476 | Pickup arm drive device In a pickup arm drive device of a record player capable of automatically selecting a desired music on a record disc on which a plurality of pieces of music are recorded, at least two inter-music sensors are arranged near a stylus on the pick-up arm to det... | 09/11/1984 |
| 4466086 | Apparatus for playing record discs in an automatic mode and an automatic music piece selection mode An automatic record disc playing apparatus comprises a tone arm having a connection part onto which a normal head shell having a plurality of terminals for transmitting signals which are picked up by a pickup cartridge and a head shell for automatic music... | 08/14/1984 |
| 4398278 | Record player program selector A program selector for a record player of the type having a turntable supported on a movable carrier which is actuable to move the turntable into and out of a housing, and having a tone arm which is movable across the surface of a record and controllable ... | 08/09/1983 |
| 4361880 | Programmable automatic record player A pickup arm is equipped with a photo sensor assembly for detecting non-recorded portions on a disk. The sensor is located in such a position that horizontal distance between the stylus tip and the detecting point of the sensor measured in the direction o... | 11/30/1982 |
| 4342110 | Record disc playing apparatus with automatic cancellation of inside force on tone arm A record disc playing apparatus comprises a horizontal drive motor for imparting a horizontal rotational force to a tone arm an address signal generating device for generating an address signal corresponding to a horizontal rotational angle position of th... | 07/27/1982 |
| 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 information tracks. A digital processing unit, responsive to t... | 07/20/1982 |
| 4323997 | Linear-tracking pick-up arm drive assembly A linear-tracking pick-up arm drive assembly of an audio or video disc player, wherein the movement of the pick-up arm of the disc player is monitored by a photoelectric, photomagnetic or electrostatic pick-up device for controlling the current or voltage... | 04/06/1982 |
| 4317190 | Pickup arm movement control system for record player When a photoelectric detector in a record player is moved under the control of a signal supplied by a control circuitry in order to detect a required unmodulated space on a surface of a record disk to be played, a pickup arm is moved according to an outpu... | 02/23/1982 |
| 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 |
| 4301526 | Tonearm control system based on absolute tonearm position A tonearm control device in which tonearm position is detected by counting output pulses generated in response to a reversible electric motor output used for providing horizontal tonearm movement. A sensor is employed to detect non-recorded portions betwe... | 11/17/1981 |
