By Controlling Video Or Sync Generator Patents (Class 348/516)
  • Patent number: 9013631
    Abstract: Methods and apparatus for processing and displaying caption information associated with a video program are provided. The caption information is extracted from a video signal and different captions are rendered in sequence for different segments of the video program. A plurality of the different captions is blended in a form for simultaneous display superimposed on video images during one of the different segments of the video program. The different captions may be the latest caption corresponding to the current segment of video and a previous caption corresponding to a previous video segment. These different captions can be displayed such that they overlie each other and such that their opacity is different. In this manner, a viewer is able to have a prolonged period of time to read captions and can readily distinguish the current caption from the previous caption.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 21, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Denis Sergeyevich Suvorov, Anton S. Korchazhinskiy, Irina Spirina
  • Publication number: 20150098021
    Abstract: The pending disclosure includes a computer server receiving a video file and a global positioning system (GPS) data file. The video file includes video frames each having a timestamp and the GPS data file includes portions of geographic data each having a timestamp. Further, the computer server receives video user input from a user device indicating a user selection of a synchronization video frame and a GPS user input from the user device indicating a user selection of a synchronization portion of geographic data. The computer server processes the selected synchronization video frame and the synchronization portion of geographic data to determine the timestamp of both the synchronization video frame and the synchronization portion of the geographic data. Further, the computer server synchronizes the GPS data file with the video file based on the timestamp of the synchronization video frame and the synchronization portion of the geographic data.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: Delightfit, Inc.
    Inventors: Peter O'Sullivan, Richard M. Yumul
  • Publication number: 20150055014
    Abstract: A system, method, and apparatus for handling transition errors is presented herein. The transition errors include handling unreported time base discontinuities during trick mode transition, miscalculated time stamps during trick mode transition, erroneous sequence end codes, and unreported broken group of picture transmission. Unreported time base discontinuities are detected by comparing the program clock reference (PCR) value of the data packet to the system time clock (STC). If the difference exceeds a predetermined threshold, the STC is set to the PCR value. Miscalculated time stamps are detected by examining the difference in PTS values between temporally adjacent data packets. If the difference is not within a margin of error from predetermined value, the PTS is disabled. Unreported broken groups of pictures are handled by skipping the first two B-frames of the first group of pictures following a trick mode transition.
    Type: Application
    Filed: September 12, 2014
    Publication date: February 26, 2015
    Inventors: Xuemin Chen, Jiang Fu, David P. Bogosh
  • Patent number: 8917354
    Abstract: A method for detecting motion in video fields of video data, comprises the steps of: calculating texture information for a pixel in the video fields; determining a threshold value as a function of the calculated texture information; calculating a differential value for the pixel; and detecting motion in the video fields as a function of the determined threshold value and the calculated differential value.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: December 23, 2014
    Assignee: Amlogic Co., Ltd.
    Inventors: Dongjian Wang, Xin Hu, Xuyun Chen
  • Patent number: 8913189
    Abstract: Audio data and video data are processed to determine one or more audible events and visual events, respectively. Contemporaneous presentation of the video data with audio data may be synchronized based at least in part on the audible events and the visual events. Audio processing functions, such as filtering, may be initiated for audio data based at least in part on the visual events.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 16, 2014
    Assignee: Amazon Technologies, Inc.
    Inventors: Richard William Mincher, Todd Christopher Mason
  • Patent number: 8896705
    Abstract: A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: November 25, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chih-Chiang Chiu, Tien-Hua Yu, Wen-Cheng Wu
  • Publication number: 20140333836
    Abstract: A video synchronization apparatus and method by adding sync data to an ancillary data space of a video signal are provided. A sync data adding apparatus may include a sync data generator to generate sync data; and a sync data adder to add the sync data to an ancillary data space of a video signal.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 13, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Suk Hee Cho, Se Yoon Jeong, Jong Ho Kim, Sung Hoon Kim, Jin Soo Choi, Jin Woong Kim
  • Patent number: 8860882
    Abstract: A system for constructing seamlessly viewable multimedia content from selectably presentable multimedia content blocks includes a block definition module for facilitating creation and modification of the content blocks. The block definition module includes a media assignment submodule for associating a synchronized audio and video segment with a content block. Also included is a block linking submodule for creating seamless connections between content blocks, whereby a transition between the connected blocks occurs substantially without interruption upon viewing the multimedia content. The block definition module further includes a layer submodule for associating an interactive layer having interactive controls with the content block.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: October 14, 2014
    Assignee: JBF Interlude 2009 Ltd—Israel
    Inventors: Jonathan Bloch, Barak Feldman, Tal Zubalsky, Kfir Y. Rotbard
  • Patent number: 8842223
    Abstract: The present technology relates to a transmitter apparatus, an information processing method, a program, and a transmitter system capable of easily transmitting a wideband signal. The transmitter apparatus includes: a first acquisition unit that obtains first transmission control information; a second acquisition unit that obtains second transmission control information similar to information input to another transmitter apparatus; and a generating unit that processes transmission target data based on a parameter contained in the first transmission control information and generates data including the processed transmission target data and the second transmission control information. The present technology can be applied to a transmitter apparatus that transmits a DVB-C2 signal.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 23, 2014
    Assignee: Sony Corporation
    Inventors: Hiroo Takahashi, Lachlan Bruce Michael, Takashi Yokokawa, Naoki Yoshimochi, Takahiro Okada
  • Patent number: 8817185
    Abstract: According to one embodiment, an electronic device includes a reproduction controller and a transmitter. The reproduction controller is configured to reproduce a first type of information of a first content. The first content includes a plurality of types of information. The transmitter is configured to transmit an instruction to reproduce a second type of information of the first content to other electronic device.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: August 26, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hiroshi Kazawa
  • Patent number: 8773585
    Abstract: A method for identifying state of macro block of de-interlacing computing and an image processing apparatus are provided, the method is as follows. A video frame is divided into a plurality of regions, where each of the regions includes a plurality of macro blocks. Then, a basic threshold corresponding to each of the regions is provided according to a position of each of the regions in the video frame, and a first macro block is identified to be a first type macro block or a second type macro block according to the basic threshold corresponding to one of the regions where the first macro block of the macro blocks locates. Then, a corresponding de-interlacing computing step is performed on the first macro block according to an result that the first macro block is identified as the first type macro block or the second type macro block.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: July 8, 2014
    Assignee: ALi (Zhuhai) Corporation
    Inventors: Jin-Song Wen, Feng Gao, Jin-Fu Wang
  • Patent number: 8760584
    Abstract: A memory space configuration method applied in a video signal processing apparatus is provided. The method includes: arranging a first memory space and a second memory space in a memory, the first and second memory spaces being partially overlapped; determining a type of a signal source; when the signal source is a first video signal source, enabling a first processing circuit and buffering data associated with the first video signal source by using the first memory space; and, when the signal source is a second video signal source, enabling a second processing circuit and buffering data associated with the second video signal source by using the second memory space. The second processing circuit is disabled when the first processing circuit is enabled; the first processing circuit is disabled when the second processing circuit is enabled.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 24, 2014
    Assignee: MSTAR Semiconductor, Inc.
    Inventor: Po-Jen Yang
  • Patent number: 8749709
    Abstract: An input card of video switcher includes a detection block for detecting errors in the timing signals of a digital video signal within a range. For timing signals with errors that fall within the range, the input card implements a correction block to correct the signals to an expected resolution. For timing signals with errors that fall out of the range, the input card does implement the correction block and passes the raw timing signal through.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: June 10, 2014
    Assignee: Crestron Electronics Inc.
    Inventor: Adolfo Velasco
  • Patent number: 8711886
    Abstract: The invention concerns a device for transmitting packets in a packet communication network comprising at least two stations, characterized in that it includes means for: extract image cues from a synchronizing signal, initializing a first counter based on said image cues, initializing a second counter every “m” zero crossing of the first counter, sampling the second counter at all the Tech periods, where Tech is derived from a time base synchronized on all the network stations, and transmitting packets containing the samples in the network. The invention also concerns a device for receiving packets in a packet communication network comprising at least two stations.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: April 29, 2014
    Assignee: Thomson Licensing
    Inventors: Thierry Tapie, Serge Defrance, Bertrand Huguies
  • Publication number: 20140078399
    Abstract: A video projector, a cluster of video projectors and a method for wirelessly transmitting image data within the cluster of video projectors. The video projector includes a first antenna located at a first side of the projector and a second antenna located at a second side of the projector, opposite to the first side. Image data is divided into sub-parts, and distributed by assigning each image data sub-part to a video projector. A video projector receiving image data sub-parts extracts and stores the image data sub-part assigned to it, and retransmits image data sub-parts assigned to respectively a second and third video projectors.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Laurent Frouin, Lionel Tocze, Pierre Visa
  • Patent number: 8582033
    Abstract: After a sending-side clock and a clock 34 of a communication unit 33 on a receiving side are synchronized with each other, the first vertical synchronizing signal is generated in accordance with the sending-side clock, and movie data 5 representing a movie is generated by generating frame data in accordance with the generated first vertical synchronizing signal. Start time data indicating the time for starting generation of the movie data 5 and the movie data 5 are sent as communication data from the sending side to the communication unit 33. Then, the second vertical synchronizing signal is generated in accordance with the clock 34 of the communication unit 33 and the start time data received as the communication data. The frame data 50 included in the movie data 5 received as the communication data is presented in accordance with the second vertical synchronizing signal.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 12, 2013
    Assignee: MegaChips Corporation
    Inventor: Takashi Sawada
  • Patent number: 8576922
    Abstract: Techniques for synchronizing audio and video content for presentation to a user at a same rate are provided. Streams of content from two or more sources of media, each media source having an associated clock, are synchronized by a synchronizing component and processor with respect to a master clock. As well, techniques are provided for ensuring that output devices are synchronized at preview startup. That is, such techniques ensure that the output devices start playing the media at the same time as well as at the same rate.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: November 5, 2013
    Assignee: Apple Inc.
    Inventors: Nicolas Moss, Gregory R. Chapman, John Samuel Bushell, Bradley Ford
  • Patent number: 8520143
    Abstract: There is provided a method of measuring delay variation between first and second elementary streams in a digital audiovisual data stream, comprising detecting and storing digital audiovisual data stream timestamp values, detecting and storing elementary stream timestamp values for the first and second elementary streams, interpolating the digital audiovisual data stream timestamp values and elementary stream timestamp values to form data sets having mutual sampling points, and subtracting the interpolated data set for the first elementary data stream from the interpolated data set for the second elementary data stream to form elementary stream difference values indicative of changes in delay over time between first and second elementary streams.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: August 27, 2013
    Assignee: Tektronix International Sales GmbH
    Inventors: Martin Norman, Paul Robinson
  • Patent number: 8405774
    Abstract: A synchronization signal control circuit according to embodiments includes a phase difference detecting section and a vertical synchronization correction control section. When a vertical synchronization period of an input video signal is within a compensation period range between a minimum vertical synchronization period and a maximum vertical synchronization period, the synchronization signal control circuit outputs a display vertical synchronization signal used for displaying the input video signal to a display section capable of providing a display based on the input video signal. The phase difference detecting section detects a phase difference between an input vertical synchronization signal based on the input video signal and the display vertical synchronization signal. The vertical synchronization correction control section corrects the cycle period of the display vertical synchronization signal within the compensation period range so as to reduce the phase difference.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: March 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Hori, Koichi Sato
  • Patent number: 8379149
    Abstract: A display apparatus includes a signal input unit through which an image signal is input, the image signal comprising a synchronization signal and an active signal; an adjustment signal generating unit that generates an adjustment signal; a signal processing unit that receives the adjustment signal and adjusts the image signal based on the received adjustment signal; and a controller which analyzes the input signal and controls the adjustment signal generating unit to change characteristics of the adjustment signal if the adjustment signal does not lie within a blanking interval between the synchronization signal and the active signal. With this configuration, even when an image signal having a reduced blanking interval between the synchronization signal and the active signal is input, the adjustment signal can be generated within the blanking interval of the image signal, not within the active signal interval.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: February 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Joo-hee Jeon
  • Patent number: 8355081
    Abstract: The invention discloses a display control device and method thereof. The display control device and method thereof utilize the phase deviation and the frequency deviation between the output signal and the input signal caused during channel switching to provide converting time acceptable by a display device and to achieve the objective of balancing the data stream transmission.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: January 15, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Wen-Hsia Kung, Yu-Pin Chou, Yi-Teng Chen
  • Patent number: 8294820
    Abstract: A video signal synchronization signal generating apparatus for making a display reference synchronization signal Vb that serves as a reference of video display and has a first frequency and an input synchronization signal Vi that constitutes images and has a second frequency synchronized with each other, the apparatus including: a frequency ratio generating section configured to divide a frequency that is double the first frequency by the second frequency to calculate a frequency ratio n; a Vx generation comparator circuit section configured to generate coincidence signal Vx? having pulses that are inserted by equally dividing one period of the input synchronization signal Vi by the frequency ratio n; and a Vx generation circuit section configured to remove the alternate pulses of the coincidence signal Vx? to generate synchronization signal Vx of a same phase as the phase of the input synchronization signal Vi.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: October 23, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Hori, Koichi Sato, Takeshi Inagaki
  • Patent number: 8218079
    Abstract: A stream generating apparatus includes an acquirer which acquires from an external source a reference signal synchronized with the video signal, a self-driven counter which has a first count mode in which the number of clocks in the frame period is counted in synchronization with a reference signal acquired by the acquirer thereby to generate and supply a first frame sync signal to the first and second signal processing units, and a second count mode in which the number of clocks in the frame period is counted independently not in synchronization with the reference signal thereby to generate and supply a second frame sync signal to the first and second signal processing units, and a controller which switches a count mode between either from the first count mode to the second count mode or from the second count mode to the first count mode based on predetermined conditions.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: July 10, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masashi Shiratori
  • Patent number: 8164689
    Abstract: A synchronizing signal control circuit includes: a phase detecting section configured to detect a phase difference between a display synchronizing signal and an input synchronizing signal; an adding section configured to add a set value for setting a synchronization compensation period and the detected phase difference; a synchronization phase correcting section configured to correct the phase of the input synchronizing signal on the basis of the output signal of the adding section; a gate signal generating section configured to generate a gate signal representing the synchronization compensation period based on the display synchronizing signal; a synchronization determining section configured to determine whether the synchronization can be effected, by detecting whether the input synchronizing signal exists within the synchronization compensation period; and a selecting section configured to perform switching to the corrected input synchronizing signal on the basis of the determination result of the synchron
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: April 24, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Hori, Koichi Sato
  • Patent number: 8089526
    Abstract: A circuit is used to process video signal from a video sensor. The video signal includes video content signal and synchronization signals. The circuit includes a status register, a data register, and a processor. The status register provides a sampling clock signal to the data register and the video sensor. The sampling clock signal is synchronized with the synchronization signals to sample the video signal. The status register stores the synchronization signals. The data register storing the video content signal. The processor is coupled to the status register and the data register. The processor reads the video content signal from the data register according to the synchronization signals in the status register.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: January 3, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Ke-You Hu
  • Patent number: 7948557
    Abstract: An apparatus for generating a control signal for a film event system is described for synchronizing film events with an image reproduction, wherein a film comprises film information applied in a time sequence, and the apparatus comprises a means for storing the film information, wherein a time scale is associated to the stored film information, a means for receiving a section read from the film, a means for comparing the read section to the stored film information and a means for determining the control signal based on the comparison and the time scale.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 24, 2011
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Thomas Sporer, Michael Beckinger
  • Patent number: 7900236
    Abstract: A system for transmitting auxiliary data within a modulated video signal from a broadcast source to a hand-held device with a slot, the system comprising the broadcast source comprises means for transmitting auxiliary data to the slotted hand-held device via the modulated video signal; an interface device electronically coupled to the hand-held device via the slot and comprises a card microcontroller, a receiver electronically coupled to the card microcontroller for receiving the modulated video signal from the broadcast source, and circuitry electronically coupled to the card microcontroller and the receiver for demodulating the modulated video signal and reproducing the auxiliary data, and transferring the auxiliary data to the hand-held device via an interface protocol, and the hand-held device with the slot comprises a microcontroller for processing the signal auxiliary data received via the interface protocol from the interface device.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: March 1, 2011
    Assignee: Koplar Interactive Systems International, L.L.C.
    Inventors: Yousri H. Barsoum, Alan G. Maltagliati, Christopher E. Chupp, Daniel A. Ciardullo
  • Patent number: 7856365
    Abstract: The present invention provides physicians access to formulary data as well as important clinical and practice management information at the point of care on easy-to-use handheld electronic devices. The invention also provides a method for distributing medical data to medical personnel. The method comprises the steps of storing medical data in a database and periodically communicating selected medical data between the database and an electronic device to establish a medical data distribution system subsidized by sponsoring entities. The invention also provides a computer readable memory storing executable instructions for execution by a computer system such that the computer system functions in a specified manner. The instructions comprise instructions for storing medical data in a database, and instructions for periodically communicating selected medical data between the database and an electronic device to establish a medical data distribution system subsidized by sponsoring entities.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: December 21, 2010
    Assignee: ePocrates, Inc.
    Inventors: Richard Alan Fiedotin, Jeffrey Alan Tangney, Thomas Ho Lee
  • Publication number: 20100315553
    Abstract: To provide an audio-video data synchronization method whereby an increase in the amount of control message transmission can be suppressed and the video output can be prevented from being interrupted.
    Type: Application
    Filed: February 5, 2009
    Publication date: December 16, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Ayako Takatsuji, Junji Yoshida, Masazumi Yamada
  • Publication number: 20100295993
    Abstract: An apparatus and a method for synchronization between video and audio in a mobile communication terminal are provided. The method for the synchronization between the video data and the audio data in the mobile communication terminal includes acquiring Presentation Time Stamp (PTS) information for each of audio data and video data which need to be played simultaneously; determining a delay time between the terminal and a wireless device which plays one data of the audio data and the video data; generating new PTS information for the one data by reflecting the determined delay time in the PTS information; and synchronizing the one data and the other data using the new PTS information for the one data and the acquired PTS information for the other data.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyu-Bong Oh
  • Patent number: 7688324
    Abstract: According to one embodiment, a graphics/video processor includes a memory controller. The memory controller includes a first arbiter that receives memory client requests to access a memory device, and a first memory buffer coupled to the first arbiter. The first arbiter stores client requests that are selected by the first arbiter. The memory controller also includes a second arbiter coupled to the first memory buffer and a second memory buffer coupled to the second arbiter. The second arbiter receives requests from the memory client requests stored in the first memory buffer. The second memory buffer stores the client requests selected by the second arbiter. Further, the memory controller includes a third arbiter coupled to the second memory buffer. The third arbiter provides access of the memory device to the client requests stored in the second memory buffer.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: March 30, 2010
    Assignee: Zoran Corporation
    Inventors: David R. Auld, Bruce K. Holmer, Hong-Jyeh Jason Huang, Gerard K. Yeh
  • Patent number: 7663698
    Abstract: A genlock device comprises: means (31) for inputting an external reference signal; means (32,33,34,36,39,40,41,42,44) for generating a master reference clock signal synchronized in phase with the external reference signal; and means (37) for storing a genlock state. The genlock state includes, for example, absence of a synchronization signal in the external reference signal. The genlock device can further comprise: means (45) for storing a voltage value determined so that a voltage controlled oscillator (40) oscillates a signal having a frequency higher or lower by a predetermined value than a reference frequency of the voltage controlled oscillator; and means (44) for judging whether a voltage value which controls the voltage controlled oscillator is larger or smaller than the voltage value.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 16, 2010
    Assignee: Leader Electronics Corporation
    Inventor: Tomomi Hara
  • Patent number: 7650624
    Abstract: A system for transmitting auxiliary data within a modulated video signal from a broadcast source to a hand-held device with a slot, the system comprising the broadcast source comprises means for transmitting auxiliary data to the slotted hand-held device via the modulated video signal; an interface device electronically coupled to the hand-held device via the slot and comprises a card microcontroller, a receiver electronically coupled to the card microcontroller for receiving the modulated video signal from the broadcast source, and circuitry electronically coupled to the card microcontroller and the receiver for demodulating the modulated video signal and reproducing the auxiliary data, and transferring the auxiliary data to the hand-held device via an interface protocol, and the hand-held device with the slot comprises a microcontroller for processing the signal auxiliary data received via the interface protocol from the interface device.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: January 19, 2010
    Assignee: Koplar Interactive Systems International, L.L.C.
    Inventors: Yousri H. Barsoum, Alan G. Maltagliati, Christopher E. Chupp, Daniel A. Ciardullo
  • Patent number: 7649569
    Abstract: System and method for digitally correcting time base errors in video display systems. A preferred embodiment comprises 1) correcting time base errors in a first portion of a horizontal line of video information, wherein the first correcting makes use of an error estimate for the horizontal line of video information and a preceding horizontal line of video information, 2) correcting time base errors in a second portion of a horizontal line of video information, wherein the second correcting makes use of an error estimate for the horizontal line of video information, and 3) repeating the first correcting and the second correcting for remaining horizontal lines of video information in the digitized video signal.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: January 19, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Peter Chang, Rajitha Padakanti
  • Patent number: 7577197
    Abstract: A video encoder includes a frame synchronizer to temporarily store video data supplied from an exterior in a plurality of memory banks repeatedly selected in a predetermined sequence and to read the video data successively from the plurality of memory banks repeatedly selected in said predetermined sequence, an encode unit to encode the video data read by the frame synchronizer, and a control unit to perform a bank switch process that swaps one memory bank among the plurality of memory banks for another memory bank separate from the plurality of memory banks.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: August 18, 2009
    Assignee: Fujitsu Microelectronics Ltd.
    Inventor: Tetsu Takahashi
  • Patent number: 7551227
    Abstract: A signal processor includes a picture input section for receiving a video bit stream, a video decoding section for decoding the video bit stream, a picture display section for outputting decoded data from the video decoding section, a digital image input section for receiving digital image data, a digital image display section for outputting the digital image data, a blending section for generating a picture signal from the digital image display section and the picture display section, an audio input section for receiving the digital audio data and the audio bit stream, an audio decoding section for decoding audio data and the audio bit stream, an audio output section for adding an audio signal to data from the audio decoding section to generate a signal and outputting the generated signal, and a synchronizing section for synchronizing respective outputs of the blending section and the audio output section.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: June 23, 2009
    Assignee: Panasonic Corporation
    Inventors: Akifumi Yamana, Ryouji Yamaguchi
  • Patent number: 7522216
    Abstract: A video synchronization signal detector for detecting occurrences of single and double frequency synchronization signal pulses present during a vertical synchronization interval.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 21, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Dongwei Chen
  • Patent number: 7511764
    Abstract: The present invention provides a synchronization system comprising a base unit and at least one video camera. The base unit includes a master time-base adapted to set a time period that samples a frame of video data, a memory, and a base unit communications transceiver. The base unit communications transceiver is adapted to transmit a frame synchronization signal to a video camera communications transceiver. The video camera includes an image sensor adapted to store the video data, an exposure control adapted to control an exposure level of the image sensor, and a camera time-base adapted to receive the frame synchronization signal from the video camera communications transceiver. The camera time-base is further adapted to receive the frame synchronization signal, reset its time and initiates its internal timing sequence, transmit signals to the exposure control to control a length of the exposure, and transmit timing signals to the image sensor to read the video data.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 31, 2009
    Inventors: Alan Neal Cooper, Christopher Michael Fritz, James Walter Exner
  • Patent number: 7509263
    Abstract: The present invention provides physicians access to formulary data as well as important clinical and practice management information at the point of care on easy-to-use handheld electronic devices. The invention also provides a method for distributing medical data to medical personnel. The method comprises the steps of storing medical data in a database and periodically communicating selected medical data between the database and an electronic device to establish a medical data distribution system subsidized by sponsoring entities. The invention also provides a computer readable memory storing executable instructions for execution by a computer system such that the computer system functions in a specified manner. The instructions comprise instructions for storing medical data in a database, and instructions for periodically communicating selected medical data between the database and an electronic device to establish a medical data distribution system subsidized by sponsoring entities.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: March 24, 2009
    Assignee: ePocrates, Inc.
    Inventors: Richard Alan Fiedotin, Jeffrey Alan Tangney, Thomas Ho Lee
  • Patent number: 7480009
    Abstract: A digital television (DTV) receiver is provided, comprising: a demodulator that demodulates television signals and outputs equalizer training signals in the form of real (I) and imaginary (Q) data; a sync signal detector, and a phase compensator that offsets the phase of the I and Q data based on the phase offset signal and outputs phase adjusted I data under control of the lock control signal. The sync signal detector comprises: a correlator that correlates the equalizer training signals including the I and Q data; a power calculator that calculates the sum of the power of the correlated I and Q data; a comparator that compares (the sum) against a preset threshold and outputs a compare indication signal; a sync lock controller that monitors the compare indication signal and outputs a lock control signal; and a phase calculator that calculates a phase of the equalizer training signals based on the I and Q data and outputs a phase offset signal based on the compare indication signal.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: January 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jonghwan Cheon, Minho Kim, Hyunbae Jeon, Sergey Zhidkov
  • Patent number: 7471337
    Abstract: A method for synchronization of an audio stream and a video stream comprising the steps of (A) determining a first presentation time stamp from the video stream and generating a first handshake signal when the video stream is ready to be transmitted, (B) repeating and dropping one or more audio frames of the audio stream in response to the first handshake signal and a plurality of first predetermined threshold values until a second presentation time stamp from the audio stream matches the first presentation time stamp and generating a second handshake signal when the audio stream is ready to be transmitted and (C) transmitting the video stream and the audio stream in response to the second handshake signal.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: December 30, 2008
    Assignee: LSI Corporation
    Inventors: Paul J. Wells, Herve Brelay
  • Publication number: 20080266453
    Abstract: A method by which a DTV receiver that receives a terrestrial broadcast DTV signal may automatically determine the local time for the local terrestrial broadcast region, as well as DTV receivers that implements such a method, is described. The method includes obtaining a unique identifier of a terrestrial broadcast signal, wherein the unique identifier is transmitted as part of the terrestrial broadcast signal, accessing a memory to obtain a local time offset and a Daylight Savings Time (DST) observance indicator associated with the unique identifier, and calculating the local time based on the local time offset and the DST observance indicator. Additional methods for providing channel availability information to a user based on the unique identifier are described.
    Type: Application
    Filed: April 25, 2007
    Publication date: October 30, 2008
    Applicant: BROADCOM CORPORATION
    Inventor: Jeffrey P. Fisher
  • Publication number: 20080239147
    Abstract: The invention discloses a display control device and method thereof. The display control device and method thereof utilize the phase deviation and the frequency deviation between the output signal and the input signal caused during channel switching to provide converting time acceptable by a display device and to achieve the objective of balancing the data stream transmission.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: REALTEK SEMICONDUCTOR CORP.
    Inventors: Wen-Hsia KUNG, Yu-Pin CHOU, Yi-Teng CHEN
  • Patent number: 7376151
    Abstract: A method of transmitting timing critical data via an asynchronous channel without changing any datum to be transmitted. The timing critical data can be an MPEG transport stream. The asynchronous channel can be a computer or telephone network, a digital storage media such as a digital VCR, or a digital interface. The method involves tagging each transmission unit of the data stream, before inputting to the channel, with timing information, and using the timing information at the output end of the channel to recreate the proper data timing, Various schemes are described for packing the timing information tags with each or a plurality of transmission units.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: May 20, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ronald W. J. J. Saeijs, Imran A. Shah, Takashi Sato
  • Patent number: 7359005
    Abstract: In a method and system for component sync detection and alignment, the Y/G channel is used as a master channel from which the vertical and the horizontal syncs are detected by a master sync generator. The master sync generator determines a fast and slow slice level for generating a rough and a fractional detection of the vertical sync and the horizontal sync and also generates a master sync timing window signal. A slave sync generator aligns the Pb/B and Pr/R channels to the Y/G channel by making use of the vertical, horizontal, and timing window sync signals produced by the master sync generator and by generating a slave slice level to detect the vertical and horizontal syncs in the slave channels. Positional differences in the alignment between the master channel and the slave channels are determined and stored for use in subsequent frame alignment.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: April 15, 2008
    Assignee: Broadcom Corporation
    Inventors: Charles Monahan, Aleksandr Movshovich, Brad Grossman
  • Patent number: 7295248
    Abstract: An external synchronous signal circuit comprises: means for measuring a phase difference between the external frame synchronous signal (FRM_SYNC) and the frame synchronous signal (FRM) of the digital video signal; means for generating a signal (EXT_H) having the same period as that of the horizontal synchronous signal (HBK) of the digital video signal, the signal (EXT_H) having the measured phase difference with reference to the frame synchronous signal (FRM) of the digital video; and means for generating a signal (EXT_F) having the same period as that of the frame synchronous signal (FRM) of the digital video signal, the signal (EXT_F) having the measured phase difference with reference to the frame synchronous signal (FRM) of the digital video. The generated signals (EXT_F) and (EXT_H) are outputted as an external frame timing signal and an external horizontal timing signal of an external synchronous signal.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: November 13, 2007
    Assignee: Leader Electronics Corporation
    Inventor: Noriyuki Suzuki
  • Patent number: 7268827
    Abstract: A timing signal transferring circuit (10) that may be arranged to stably transfer a timing signal (S1) between two video signal processing circuits that may operate at different clock frequencies has been disclosed. A first timing signal (S1) may be received from a pre-stage video processing circuit (13). The first timing signal (S1) may be synchronous with a pre-stage system clock (C1) and may be set to the vicinity of a center of a screen by a video signal. A second timing signal (S2) may be generated on the basis of first timing signal (S1) and transferred to a post-stage video signal processing circuit (14). Second timing signal (S2) may be synchronous with a post-stage system clock (C2). In this way, a disturbance or distortion of a video on a screen due to a difference in system clock frequency affecting a video signal in the post-stage circuit may be reduced or eliminated.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: September 11, 2007
    Assignee: NEC Electronics Corporation
    Inventors: Hiroyuki Fukumori, Eifuu Nezu, Kenji Suzuki
  • Patent number: 7218356
    Abstract: A synchronization signal generating apparatus and method in which an input circuit is inductively coupled to an alternating current signal line. The input circuit generates a rectified signal. A switch has a switch input and a switch output in which the switch input is electrically connected to the input circuit and is enabled when the voltage of the rectified signal is greater than a predetermined voltage and is disabled when the rectified signal voltage is less than the predetermined voltage. A pulse generating circuit has a pulse generating circuit input and a pulse generating circuit output. The pulse generating circuit input is electrically connected to the switch output. The pulse generating circuit generates a pulse each time the switch is enabled. The synchronization signal generating apparatus is used in a synchronized television display system to signal a video switch to switch the video signal generated by a camera to a monitor based on the occurrence of the synchronization signal.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: May 15, 2007
    Assignee: Pelco
    Inventor: David Rowe
  • Patent number: 7193657
    Abstract: Disclosed is a video signal processing apparatus comprising a plurality of line memories to which in sequence input video signal data is written on a line-by-line basis; a timing controller for controlling a timing to write video signal data to the plurality of line memories and a timing to read video signal data from the plurality of line memories; a computation output portion for computing video signal data read from the plurality of line memories and outputting video signal data differing in resolution which is determined by a pixel count in the horizontal direction and a line count in the vertical direction; and a line controller which vary the pixel count in specified lines of video signal data obtained from the computation output portion, depending on a conversion rate of the video signal data resolution.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: March 20, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Kazunori Chida
  • Patent number: 7180491
    Abstract: A false DE rejection system is described. DEs are ignored during a programmable vertical lockout period. Internal timing is used during the vertical lockout period to count the number of vertical lines to ignore. The first DE received after the vertical lockout period signifies the start of the next graphics frame. Default video is output during the vertical lockout period. The TCON is synchronized to the start of the graphics frame. A horizontal line length timer measures the timing for the horizontal line length. The horizontal line length timer may also keep a moving average of all of the lines that it has measured. This helps to ensure that the TCON does not get out-of-sync with the input stream during the vertical blanking periods. The DE rejection system includes automatic blanking detection that ignores DEs that occur after the end of a predetermined graphics frame. The vertical lockout does not occur until there has been no DE for an entire line.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: February 20, 2007
    Assignee: National Semiconductor Corporation
    Inventors: Bruce C. Moore, Richard Alexander Erhart, Donald E. Camp, Mark Kuhns