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| Number | Title | Issue Date |
| 7295762 | Information record medium having first and second recording layers in which mid areas are recorded respectively, and apparatus for recording the same An information record medium is provided with a first recording layer on which a data group is recorded, and a second recording layer on which a data group is recorded. On the first recording layer, a lead-in area, management information for the whole of recording i... | 11/13/2007 |
| 6711276 | Control method and apparatus for embedding information in data A watermark information embedding method, and apparatus, capable of suppressing the quality degradation of contents and increasing the survivability of embedded information. When embedding watermark information in moving picture data formed of a plurality of still p... | 03/23/2004 |
| 6707774 | Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function An apparatus for reading record information from a recording disk and outputting the read record information in order to reproduce the record information recorded on the recording disk, is provided. The record information includes: image information which represents... | 03/16/2004 |
| 6690638 | Supporting mechanism for an optical disc reproducing apparatus having a sub-frame for suppressing vibration A main frame is supported in a box, by first elastic members. An optical disc driving device is mounted on the main frame. A sub-frame is supported on the main frame by second elastic members.... | 02/10/2004 |
| 6633723 | Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function A system comprising a recording apparatus for recording record information onto a recording medium and a reproducing apparatus for reading the record information from the recording medium and outputting it to reproduce, is provided. The record information... | 10/14/2003 |
| 6552988 | Apparatus for reproducing information recorded on recording medium while adjusting middle level of detected signal corresponding to the information An information reproducing apparatus includes: a light emitting device that emits a light beam to the recording medium; a detecting device that detects the light beam reflected by the recording medium, and that generates a detection signal including a fir... | 04/22/2003 |
| 6529718 | Receiver with a search circuit This invention relates to a receiver with a search circuit that includes a RF-AGC circuit for gain control of a RF-AMP and for generating a control signal according to an output signal of the RF-AMP, a search circuit including a reception condition detect... | 03/04/2003 |
| 6385163 | Optical recording medium An optical recording medium comprises a first information recording surface; a first reflecting layer formed on the first information recording surface; a second information recording surface; and a second reflecting layer formed on the second information... | 05/07/2002 |
| 6369782 | Method for driving a plasma display panel A frame of a video signal is divided into a plurality of sub-frames. Each of the sub-frames is composed by an address period for selecting light emitting pixels or light non-emitting pixels at every scanning line in accordance with a pixel data, and a dis... | 04/09/2002 |
| 6356523 | Apparatus for reproducing information recorded on optical disc An apparatus for reproducing information recorded on an optical disc which can favorably accomplish a time base correction for a read signal in a simple configuration. Also, the apparatus precisely removes jitter components produced when a driving signal ... | 03/12/2002 |
| 6335713 | Drive apparatus which detects spatial charge voltage on charge storage light-emitting device and controls voltage and current based on the detection while drive current is blocked A drive apparatus for a charge storage light-emitting device which comprises drive-voltage applying means for applying a drive voltage to the charge storage light-emitting device, drive-current limiting means for limiting a drive current to be supplied to... | 01/01/2002 |
| 6310843 | Clock signal generating system A clock signal generating system of the present invention is provided for recording information on a disc. The disc has a plurality of recording tracks wobbled by a wobble signal having a predetermined frequency and a plurality of prepits disposed at posi... | 10/30/2001 |
| 6212038 | Shutter mechanism for disk cartridge A slide mechanism for a shutter, installed on a cartridge case of a disk cartridge, which is slidable in both right and left directions relative to the cartridge case from a neutral position at which a head access opening is closed by the shutter, and whi... | 04/03/2001 |
| 6185164 | Disk reproducing apparatus A disk reproducing apparatus with a plurality of disks arrayed and held therein selects a desired disk for reproduction from the arrayed disks. The disk reproducing apparatus includes an insertion slot which defines an insertion executable position, a dis... | 02/06/2001 |
| 6144625 | Optical disc discriminating system An optical disc discriminating system comprises: a tracking error signal generating means adapted to generate a tracking error signal whose amplitude level varies with a groove depth of information tracks on an optical disc; a tracking servo means for dir... | 11/07/2000 |
| 6088310 | Pickup for an optical system including a blazed hologram for dividing a laser A pickup for a recording and reproducing system has a hologram for dividing a laser beam from a laser diode into a main beam and a plurality of sub-beams. The hologram is provided to locate the sub-beams at positions rearward with respect to a scanning di... | 07/11/2000 |
| 6088506 | Information record medium, apparatus for recording the same and apparatus for reproducing the same An information reproducing apparatus has a read device, is capable of reproducing sub picture information and is also capable of performing a highlight display of the sub picture information. In an information record medium to be reproduced by this reprod... | 07/11/2000 |
| 6064357 | Driving method and apparatus for light emitting device A driving method and an apparatus for a light emitting device have a simple configuration and activate the device at an accurate luminous intensity. The apparatus includes a power supply which outputs a function of time in synchronization with a timing pu... | 05/16/2000 |
| 6023124 | Electron emission device and display device using the same An electron emission device exhibits a high electron emission efficiency. The device includes an electron supply layer of metal or semiconductor, an insulator layer formed on the electron supply layer, and a thin-film metal electrode formed on the insulat... | 02/08/2000 |
| 5990988 | Reflection liquid crystal display and a semiconductor device for the display A liquid crystal display device has a semiconductor substrate. A plurality of switching elements are arranged on the substrate in matrix, and a plurality of pixel electrodes are provided above the switching elements, arranged in matrix corresponding to th... | 11/23/1999 |
| 5987532 | Single-line, series connected, data transfer control system A plurality of series-connected units, e.g., display units, are controlled by serial command data transmitted from a computer. The computer transmits ID setting command data for the respective units in a sequential manner. A controller of each unit takes ... | 11/16/1999 |
| 5953585 | Method for manufacturing an organic electroluminescent display device A method for manufacturing an organic electroluminescent display device including one or more organic electroluminescent elements arranged on a light-permeable substrate, each element having a cathode, an emitting layer made of one or more organic substan... | 09/14/1999 |
| 5825789 | Process for producing a resonator in a semiconductor laser device A method for forming a resonator in a semiconductor laser device comprises the steps of; filling with a resin a gap surrounding the side surfaces of the waveguide for a resonator other than the end-surface to be polished; polishing the end-surface and the... | 10/20/1998 |
| 5822775 | Efficient data processing method for coefficient data in a digital dignal, processor A coefficient data transfer processing method for a digital signal processor which has a coefficient address pointer independent of a program counter, whereby a processing program and coefficient data are transferred and supplied from a microcomputer dete... | 10/13/1998 |
| 5799046 | Digital data signal reproducing apparatus A digital data signal reading and reproducing apparatus which can accurately read and reproduce a digital data signal recorded on a recording medium at a high density. There is performed a Viterbi decoding process in which a code series pattern which the ... | 08/25/1998 |
| 5742243 | Method and apparatus for reducing DC component of RLL codes Data converting method and apparatus for forming an RLL code which can perform a control to eliminate a DC component without an increase in number of bits. Natural numbers m, n, d, k, and k, satisfy conditions such that m | 04/21/1998 |
| 5739635 | Organic electroluminescent device An organic electroluminescent device comprises an anode, a positive-hole transport layer made of an organic compound, an emitting layer made of an organic compound, an electron transport layer made of an organic compound, an electron-injecting layer, and ... | 04/14/1998 |
| 5521750 | Process for forming proton exchange layer and wavelength converting element A wavelength converting element comprises; an X or Y-out substrate made of lithium tantalate crystal or lithium niobate crystal having a major surface containing a Z-axis of the crystal; polarization inversion layers formed the major surface each extendin... | 05/28/1996 |
| 5517476 | Digital signal reproducing apparatus using a viterbi decoder A digital signal reproducing apparatus which can reproduce a digital signal without deteriorating the performance of a Viterbi decoder being deteriorated even if a positional error due to some mechanism causes in reproducing information from a recording m... | 05/14/1996 |
| 5499440 | Staking method A perforated hole having a tapered wall is formed in a frame of a loudspeaker. The hole has a plurality of radial ribs on the tapered wall. A projection is provided on a metalic plate. The projection is engaged with the perforated hole and the top of the ... | 03/19/1996 |
| 5488258 | Circuit for muting noises in a power amplifier A power detector is provided for detecting closing of a power switch in a power supply, for producing a power-on signal after a predetermined time from detection of the closing of the power switch. An abnormality detector is provided for detecting an abno... | 01/30/1996 |
| 5475440 | Digital time base corrector for video signal reproduction A digital time base corrector which can perfectly eliminate residual errors. A sync clock signal whose phase is synchronized with a time base fluctuation included in a reproduction video signal is formed in accordance with at least one of the horizontal s... | 12/12/1995 |
| 5474825 | Optical recording medium An optical recording medium has a substrate, a recording film of phthalocyanine coloring matter and provided on the substrate, a light reflection film on the recording film, and a protection film on the light reflection film. The light reflection film is ... | 12/12/1995 |
| 5441474 | PCB working machine and method A PCB working machine includes a work table for holding a PCB substrate in place with a suction force; a spindle carrying a cutting tool; a controller for moving the spindle in accordance with a predetermined pattern; a collet chuck provided at a distal e... | 08/15/1995 |
| 5255162 | Lighting device for a grille of a car stereo A grille of a car stereo has a recess, an operation flap pivotally mounted in the recess, an opening for inserting a sound recording medium formed at a position behind the flap, and a liquid crystal display panel provided in the flap. The lighting device ... | 10/19/1993 |
| 5246324 | Structure for mounting an instrument on a body A pair of side panels of a car stereo have threaded holes. A pair of brackets are secured to the side panels for mounting the car stereo on a frame of an automobile. A preventing sheet is attached to a reverse side of the side panel for preventing chips b... | 09/21/1993 |
| 5247126 | Image reproducing apparatus, image information recording medium, and musical accompaniment playing apparatus In an image reproducing apparatus, a music information reproducing unit reproduces musical information, lyrics information or still picture information from a music information recording medium on which the musical information, the lyrics information or t... | 09/21/1993 |
| 5231396 | R-2R digital-to-analog converter having transistors of equal emitter size A digital-to-analog converter has a plurality of switches, each of which being responsive to a bit of a digital signal having n bits, to selectively pass therethrough a weighted current having a magnitude of 2i-1 Ic where i is an ith bit. The r... | 07/27/1993 |
| 5218450 | Apparatus for reproducing information from a recording medium in accordance with a search command An information recording medium playing apparatus detects a preset memory command of every data unit of a graphics information signal of a subcode of a CD format signal which playing an information recording medium. During play operation, address data cor... | 06/08/1993 |
| 5212818 | Radio station presetting method for radio receivers A radio station presetting method for radio receivers performs seek-scanning to select a predetermined number of radio stations with a reception field strength higher than a specified level in descending order of reception field strength and to set data o... | 05/18/1993 |
