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| Number | Title | Issue Date |
| 7936659 | Method and apparatus for micro optical recording and playback tracking control The present invention uses a stationary medium and a stationary optical pickup unit. The stationary optical pickup unit has a laser, which sends a beam of light through an objective lens, which focuses the beam on a point on the track of the stationary medium. The b... | 05/03/2011 |
| 7230986 | Multistandard video decoder and decompression system for processing encoded bit streams including a video formatter and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit strea... | 06/12/2007 |
| 7095783 | Multistandard video decoder and decompression system for processing encoded bit streams including start codes and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit strea... | 08/22/2006 |
| 7061853 | High-density optical pickup for rotating media An optical pickup is described with an electronically adjustable beam spot size for reading optical media. Two proximal light sources are impinged on a selected track of the media and the reflected light is registered by photodetector arrays. The electrical signal g... | 06/13/2006 |
| 7050381 | Optical system having a convex surface for accessing a storage medium An optical system for accessing a storage medium. The system combines two kinds of laser diode, abandons some unnecessary optical elements used in the prior art, and further uses a Penta prism to fold the optical path. Moreover, the optical system uses a CZBO prism ... | 05/23/2006 |
| 7038979 | Method and apparatus for a high-speed search of an optical medium An apparatus and method for high-speed searching of an optical medium having a plurality of tracks. Light spots are directed by the apparatus onto the optical medium. As the spots traverse across the tracks in one of a first direction and a second direction, a photo... | 05/02/2006 |
| 6982935 | Pause control for a media player with a movable pickup A method and apparatus for suspending the operation of a rotating optical media player that uses simplified and efficient logic circuitry is described. When an operator initiates a pause operation, for example, by pressing a pause key, the current location of an opt... | 01/03/2006 |
| 6950930 | Multistandard video decoder and decompression system for processing encoded bit streams including pipeline processing and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit strea... | 09/27/2005 |
| 6910125 | Multistandard video decoder and decompression system for processing encoded bit streams including a decoder with token generator and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit strea... | 06/21/2005 |
| 6892296 | Multistandard video decoder and decompression system for processing encoded bit streams including a standard-independent stage and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the serial bit strea... | 05/10/2005 |
| 6842407 | Method and apparatus for tracking servo system The present invention provides a method for guiding a pick-up head to follow an information track. The method comprises the steps of sensing and sending notification of displacement between the pick-up head and the center of the information track, generating a first... | 01/11/2005 |
| 6814897 | Method for manufacturing a molding tool used for substrate molding The invention relates to methods for making mold tools. More particularly, the mold tools are used for molding a resin substrate which has fine pits, i.e., concavities and protuberances. The invention also pertains to a method for manufacturing a resin substrate. Su... | 11/09/2004 |
| 6799246 | Memory interface for reading/writing data from/to a memory A memory interface for connecting a bus to memory comprises an input, a buffer, an address input, a generator, and a writer. The input receives a plurality of data words from the bus. The buffer buffers the data words received from the bus. The address input receive... | 09/28/2004 |
| 6789045 | Time and work tracker for servers A time and work tracker that automatically collects and analyzes information about time and work performed on a wireless device is described herein. According to the present invention, a time and work tracking function is initiated on a wireless device. Thereafter, ... | 09/07/2004 |
| 6744711 | Method and apparatus for a high-speed search of an optical medium An apparatus and method conducts a high-speed search on an optical medium having a plurality of tracks on which information is recorded. At least a first light spot and a second light spot are directed by the apparatus onto the optical medium. The light spots traver... | 06/01/2004 |
| 6741529 | Method and apparatus for moving carriage assembly from initial position to target position and optical disc system including same An apparatus and method for moving a carriage assembly from an initial position to a target position relative to a storage medium rotating at a circumferential velocity. A processor determines a velocity trajectory relative to the radial distance of the initial posi... | 05/25/2004 |
| 6697930 | Multistandard video decoder and decompression method for processing encoded bit streams according to respective different standards A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the seria... | 02/24/2004 |
| 6687315 | Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing The invention provides a single chip implementation of a digital receiver for multicarrier signals that are transmitted by orthogonal frequency division multiplexing. Improved channel estimation and correction circuitry are provided. The receiver has high... | 02/03/2004 |
| 6581025 | Time and work tracker for wireless devices A time and work tracker that automatically collects and analyzes information about time and work performed on a wireless device is described herein. According to the present invention, a time and work tracking function is initiated on a wireless device. T... | 06/17/2003 |
| 6570839 | Optical data system and optical disk relating thereto An optical disk includes a plurality of tracks that are arranged in a predetermined number of zones. Each track is divided into a plurality of sectors. The sector number is different in each zone. The sector increases in number moving outwardly on the dis... | 05/27/2003 |
| 6542451 | Retrieving data from a storage device using programmable filter and equalizer An equalizer for producing an equalized signal from an input signal. The input signal has a DC component. The equalizer includes a programmable filter and equalizer. A detector for generating a threshold signal from a preprocessed signal. The preprocessed... | 04/01/2003 |
| 6532199 | Optical actuator assembly with lens position sensor for recording or playback An apparatus for optical reading or recording information on an optical disc is rotatable about an axis of rotation. The apparatus includes a carriage, an objective lens, and an objective lens holder. The carriage has a center of mass. The carriage is mov... | 03/11/2003 |
| 6493094 | Method and apparatus for beam directing Focusing means to focus a beam upon a reflective-transmissive surface. Reflecting means to reflect a central portion of the beam from the reflective-transmissive surface. Transmitting means to transmit a portion of the beam that lies outside the central p... | 12/10/2002 |
| 6445650 | High-speed dynamic actuating system for optical disks Disclosed is a high-speed dynamic actuating system for optical disks, particularly useful in an optical disk drive, wherein a closed-loop approach is used to overcome the diversity between devices and thus meet the requirement for high speed track-accessi... | 09/03/2002 |
| 6435737 | Data pipeline system and data encoding method A multi-standard video decompression apparatus has a plurality of stages interconnected by a two-wire interface arranged as a pipeline processing machine. Control tokens and DATA Tokens pass over the single two-wire interface for carrying both control and... | 08/20/2002 |
| 6434087 | Optical disc system and method for controlling bias coil and light source to process information on a storage medium An optical disc system for storing information on a medium includes a light source, a focusing mechanism, and a tracking mechanism wherein the mechanisms are controlled by a feedback loop and the focusing mechanism focuses light emitted by the light sourc... | 08/13/2002 |
| 6418097 | Analog to digital converter assembly for normalizing servo error signals and multiplexing reference voltage inputs and digital outputs and improved optical drive system including same An analog to digital circuit assembly includes a circuit for multiplexing a reference voltage input of an analog to digital converter to produce alternating normalized and referenced digital outputs of an analog signal input at a rate controlled by a samp... | 07/09/2002 |
| 6417859 | Method and apparatus for displaying video data This invention provides a method to control the buffering of encoded video data organized as frames or fields. This method involves determining the picture number of each incoming decoded frame, determining the expected presentation number at any time and... | 07/09/2002 |
| 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 a peeling action. The apparatus includes first and second... | 06/25/2002 |
| 6397167 | Time and activity tracker with hardware abstraction layer A method and system for automatically collecting and for analyzing information about time and work performed on a computer includes a hardware abstraction layer for monitoring activity on various user input devices. The system also includes the following ... | 05/28/2002 |
| 6378030 | Method and apparatus for processing video data A configurable RAM interface connecting a bus to RAM is adapted to receiving large multiword variable length tokens at a high data arrival rate, using a swing buffer and a buffer manager. An address source provides complete addresses to the interface. The... | 04/23/2002 |
| 6359938 | Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing The invention provides a single chip implementation of a digital receiver for multicarrier signals that are transmitted by orthogonal frequency division multiplexing. Improved channel estimation and correction circuitry are provided. The receiver has high... | 03/19/2002 |
| 6343061 | Optical data system and high density optical disk relating thereto An apparatus for recording data includes a source of digital data arranged into data words having a given number of bits and a converter that converts the data words to code words having one more bit than the given number using a group code recording form... | 01/29/2002 |
| 6330665 | Video parser A multi-standard video decompression apparatus has a plurality of stages interconnected by a two-wire interface arranged as a pipeline processing machine. Control tokens and DATA Tokens pass over the single two-wire interface for carrying both control and... | 12/11/2001 |
| 6330666 | Multistandard video decoder and decompression system for processing encoded bit streams including start codes and methods relating thereto A pipeline video decoder and decompression system handles a plurality of separately encoded bit streams arranged as a single serial bit stream of digital bits and having separately encoded pairs of control codes and corresponding data carried in the seria... | 12/11/2001 |
| 6326999 | Data rate conversion A method for converting frame data at a slower rate into field data at a faster rate in a video decoder comprises determining a basic field repetition rate such that a field is repeated an integer number of times in a frame period, calculating a ratio dif... | 12/04/2001 |
| 6317391 | Optical disc system having current monitoring circuit with improved bias coil assembly and controller for laser driver and method for operating same An optical drive system includes a computer that monitors the current in an improved bias coil assembly in conjunction with a magnetomotive field generator to determine when a predetermined current threshold is exceeded. The bias coil assembly includes a ... | 11/13/2001 |
| 6317393 | Method and apparatus for controlling an optical head relative to an initial track and a target track on a storage medium having data arranged thereon in tracks A method for moving an optical head from an initial track to a target track on a storage medium having data arranged in tracks thereon. The method includes determining a track crossing number indicating a number of tracks between the initial track and the... | 11/13/2001 |
| 6314069 | Apparatus and method for controlling a focused beam An apparatus and method is disclosed for focus control of a beam of radiant energy, wherein a detector of the beam has first and second outputs responsive to a position of the beam. A circuit is coupled to the outputs of the detector for producing an erro... | 11/06/2001 |
| 6297857 | Method for accessing banks of DRAM This invention discloses a method for accessing Dynamic Random Access Memory (DRAM) to store and retrieve data words associated with a two dimensional image. The DRAM includes two separate banks, a first bank and a second bank. Each bank is capable of ope... | 10/02/2001 |
