Patents Assigned to Genesis Microchip Inc.
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Publication number: 20050125179Abstract: A method of auto-calibration of a liquid crystal display (LCD) is described. The method is carried out by generating and displaying on the LCD a test patch at a first grey level, generating a first signal based upon the test pattern at the first grey level, generating and displaying a second test patch at a second grey level, generating a second signal based upon the test pattern at the second grey level, and calculating an entry to an LCD overdrive table based upon the first and the second signal.Type: ApplicationFiled: November 22, 2004Publication date: June 9, 2005Applicant: Genesis Microchip Inc.Inventors: Steve Selby, Andrew MacKinnon
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Publication number: 20050104899Abstract: A configurable real time data processor arranged to provide a data stream to a display unit having an associated set of display attributes. A number of ports each of which is configured to receive an input data stream, an adaptive image converter unit coupled to at least one of the ports suitable for converting a corresponding input data stream to a corresponding converted data stream having associated converted data stream attributes, an image compositor unit arranged to combine the converted data streams to form a composited data stream, an image enhancer unit arranged to enhance the composited data stream to form an enhanced data stream, and a display unit interface arranged process the enhanced data stream suitable for display on the display unit.Type: ApplicationFiled: November 19, 2003Publication date: May 19, 2005Applicant: Genesis Microchip Inc.Inventors: Peter Swartz, Ramesh Dandapani, Xu Dong
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Publication number: 20050062711Abstract: In a digital display device, a packet based method of driving selected pixel elements by way of associated data latches included in a column driver is disclosed. For each frame lines in a video frame, a number of video data packets are provided directly to the column driver at a link rate and each of the number of data latches are populated with appropriate video data based upon video data packets within a line period ?. Selected pixel elements are driven based upon the video data.Type: ApplicationFiled: July 29, 2004Publication date: March 24, 2005Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20050066085Abstract: A method of coupling a multimedia source device to a multimedia sink device by providing a source device having a transmitter unit coupled thereto, providing sink device having a receiver unit coupled thereto, receiving a source data stream in accordance with a native stream rate by the transmitter unit, coupling the transmitter unit and the receiver unit by way of a linking unit, forming a multimedia data packet stream formed of a number of multimedia data packets and generating a transport schedule for transferring the multimedia data packet stream in accordance with a link rate between the transmitter unit and the receiver unit wherein the multimedia dataType: ApplicationFiled: July 29, 2004Publication date: March 24, 2005Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20050062699Abstract: In a video processor unit, a method of providing a video data stream at a clock rate that is independent of a pixel clock rate. Receiving native video data from a video source at a native clock rate, storing the video data in a memory unit, reading selected portions of the video data at a memory clock rate, rasterizing the selected video data, packetizing the rasterized video data, sending the packetized video data to a display unit by way of a link at a link rate, wherein the link rate is directly related to the memory clock rate.Type: ApplicationFiled: July 29, 2004Publication date: March 24, 2005Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Patent number: 6871008Abstract: In a system for processing and displaying a DVD-video data stream, a system for decoding and processing a subpicture data stream. The subpicture data stream comprises a subpicture pixel data stream and a subpicture display control data stream. The subpicture display control data stream preferably comprises one or more display control commands, one or more of which include subpicture display control information. The system comprises at least one processing unit for processing software programmed to perform at least some subpicture data stream decoding and subpicture display control command execution. In addition, the system further comprises a subpicture hardware unit configured to receive the subpicture pixel data stream, subpicture control information extracted from a subpicture display control command executed by said at least one processing unit, and subpicture display control commands not executed by said at least one processing unit.Type: GrantFiled: January 3, 2000Date of Patent: March 22, 2005Assignee: Genesis Microchip Inc.Inventors: Sandro H. Pintz, Vijay Kamarshi, Teju J. Khubchandani
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Patent number: 6859237Abstract: A television line doubler (interlaced to progressive scan converter) incorporating the following aspects—an improved field motion detector which does not treat low frequency vertical transitions as motion; a frame motion detector having an improved ability to differentiate motion from subcarrier signal components; a sawtooth artifact detector; a sawtooth artifact detector in combination with a film pattern detector, such that the artifact detector can take the film pattern detector out of film mode earlier than it would if it only were responsive to a break in the film pattern; tandem field motion detectors; an improved field based film detector; film pattern detectors and motion detectors used therewith which operate by performing end-of-field calculations; the combination of a field motion detector and a frame motion detector such that the frame motion detector provides a motion signal used as a verification by the field motion detector; an improved NTSC film detector requiring a minimum number of NTSC filmType: GrantFiled: March 14, 2003Date of Patent: February 22, 2005Assignee: Genesis Microchip Inc.Inventor: Peter D. Swartz
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Patent number: 6847365Abstract: A media processing system is provided including a DRAM that includes a plurality of storage locations for storing digital data being processed by said media processing system, said digital data including video data that is compressed in a standardized format, a system for processing said digital data that includes said standardized format compressed video data to produce compressed video images and image data, a system for decoding said standardized format compressed video images to generate full motion video pixel data, a system for sharing said DRAM between said processing means and said decoding means, and a system for producing a full motion video signal from said full motion video pixel data. The media processing system may also have a system for multiplying or combining a first pixel by a second pixel in a single clock cycle.Type: GrantFiled: January 3, 2000Date of Patent: January 25, 2005Assignee: Genesis Microchip Inc.Inventors: Richard G. Miller, Louis A. Cardillo, John G. Mathieson, Eric R. Smith
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Patent number: 6845450Abstract: Keys (e.g., decryption key, authentication key) are stored in a non-volatile memory of a display unit. The keys are retrieved in encrypted form into an integrated circuit. The integrated circuit decrypts the keys and uses the keys. As the keys are available in decrypted form only within the integrated circuit and potentially only during use, the keys may not be available to unauthorized third parties.Type: GrantFiled: August 31, 2000Date of Patent: January 18, 2005Assignee: Genesis Microchip Inc.Inventors: Osamu Kobayashi, Ali Noorbakhsh, Chia-Lun Hang, Jih-Hsien Soong, Tzoyao Chan
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Patent number: 6833839Abstract: An apparatus and method for allowing color adjustments in display devices is disclosed The apparatus comprises a multi-resolution structure for providing color adjustments; and an interpolator for interpolating at least one offset of the multi-resolution structure. An apparatus and method in accordance with the present invention uses a combination of color look-up tables with different levels of resolution, followed by interpolation to provide a display process which has high resolution but utilizes minimal memory. In so doing, memory is used for high-resolution areas only where needed. The multi-resolution structure is a very good approximation to the theoretical mapping table in the areas where it is needed. At the same time, since the high resolution areas are localized, a significant reduction in memory storage is possible.Type: GrantFiled: May 13, 2002Date of Patent: December 21, 2004Assignee: Genesis Microchip Inc.Inventors: Hari Nair, Neha Agrawal, Saif Choudhary, Shashi Kumar, Arun Johary
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Publication number: 20040228365Abstract: According to some embodiments of the invention, a method of minimizing buffer requirements, in a packet based multimedia system having a multimedia source device coupled to a multimedia display device by way of a bi-directional auxiliary channel arranged to transfer information between the display device and the source device and vice versa and a unidirectional main link arranged to carry multimedia data packets from the multimedia source device to the multimedia display device is disclosed. Interspersing special characters that allow the display device to distinguish each bit of pixel data included in the data packets thereby requiring only a small FIFO type buffer unit.Type: ApplicationFiled: December 2, 2003Publication date: November 18, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040218598Abstract: A transmission efficient packet based display interface arranged to couple a multimedia source device to a multimedia sink device is disclosed. The transmission efficient interface includes a bi-directional auxiliary channel arranged to transfer information between the multimedia source device and the multimedia sink device and vice versa, wherein the information transferred over the auxiliary channel includes a set of packet attributes. The interface also includes a unidirectional main link arranged to carry a number multimedia data packets from the transmitter unit to the receiver unit each having a multimedia data packet header. In the described embodiment, each of the headers is substantially reduced in size over what would otherwise be necessary since the packet attributes are communicated via the auxiliary channel prior to the transmission of the main link packets over main link thereby minimizing the packet overhead and providing a very high main link efficiency.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040221312Abstract: A method, apparatus and system of reducing multimedia packet overhead, in a packet based multimedia system having a multimedia source device coupled to a multimedia display device by way of a bi-directional auxiliary channel arranged to transfer information between the display device and the source device and vice versa and a unidirectional main link arranged to carry multimedia data packets from the multimedia source device to the multimedia display device is disclosed.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040218625Abstract: An enumeration method for the link rate and a pixel/audio clock rate. The method can be performed by expressing the pixel/audio clock rate and the link rate with four parameters, A, B, C, and D based upon a master frequency 23.76 GHz as 210×33×57×111 Hz, and regenerating a pixel/audio clock from the link clock.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040218599Abstract: A packet based display interface arranged to couple a multimedia source device to a multimedia sink device is disclosed that includes a transmitter unit coupled to the source device arranged to receive a source packet data stream in accordance with a native stream rate, a receiver unit coupled to the sink device, and a linking unit coupling the transmitter unit and the receiver unit arranged to transfer a multimedia data packet stream formed of a number of multimedia data packets based upon the source packet data stream in accordance with a link rate between the transmitter unit and the receiver unit.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040221315Abstract: A packet based display interface arranged to couple a multimedia source device to a multimedia sink device is disclosed that includes a transmitter unit coupled to the source device arranged to receive a source packet data stream in accordance with a native stream rate, a receiver unit coupled to the sink device, and a linking unit coupling the transmitter unit and the receiver unit arranged to transfer the video data in the form of a number of main link characters at a link character clock rate that is independent of the native stream rate such that video data and the link character clock are asynchronous to each other.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040221056Abstract: A method and apparatus of optimizing transmission (both real time and continuous) of a number of multimedia data packets between a multimedia source device and a multimedia display device is disclosed. In the described embodiment, the multimedia source device and the display device are coupled by way of a unidirectional main link arranged to carry the multimedia data packets from the multimedia source device and the multimedia display device and a bi-directional auxiliary channel arranged to transfer information between the multimedia source device and the multimedia display device. The method can be carried out by following at least the following operations. Providing a test pattern by the multimedia source device on the main link, determining a transmission quality factor of the main link based upon the test pattern, and optimizing the transmission of the multimedia data packets based upon the transmission quality factor.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040218624Abstract: A packet based closed loop video display interface with periodic status check capability arranged to couple a multimedia source device and a multimedia sink device that includes an adjustable, high speed main link arranged to carry a number multimedia data packets from the multimedia source device to the multimedia sink device. A bi-directional auxiliary channel arranged to provide a number of support functions useful for main link set up and supporting main link operations such as periodically sending a status check of the multimedia display device to the multimedia source device such that the closed loop created by combining the adjustable, high speed main link with a very reliable auxiliary channel allows for robust operation of the display interface over a variety of main link conditions.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Publication number: 20040218627Abstract: In a system having a bi-directional auxiliary channel arranged to transfer information between a video source and a video display and vice versa and a unidirectional main link arranged to carry a number multimedia data packets from the video source to the video display, a method of establishing a stable main link. The method is carried out by performing a link training session carried out over the auxiliary channel to establish the stable main link, prior to starting transmission of multimedia data packet streams from a video transmitter to a video receiver over the main channel.Type: ApplicationFiled: December 2, 2003Publication date: November 4, 2004Applicant: Genesis Microchip Inc.Inventor: Osamu Kobayashi
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Patent number: 6804449Abstract: An apparatus, method, and manufacture for playing video in reverse can be implemented using frames from prior video object units. Scaling can be implemented to playback a video in reverse at a speed approaching normal forward play. A smooth shuttle can be implemented to transition between slow reverse, pause and slow forward.Type: GrantFiled: January 5, 2000Date of Patent: October 12, 2004Assignee: Genesis Microchip Inc.Inventor: Pratish R. Desai