Format Detection Patents (Class 348/558)
  • Patent number: 7554605
    Abstract: A video signal transformation method and device for adapting display devices to heterogeneous signal formats, the method comprising the steps of: detecting a source video signal and the display format of a display device; and transforming the source video signal into the format of the display device for using the transformed video signal as the input of the display device while the source video signal is not conformed with the format of the display device. In addition, the device includes a detection device and a processing device, wherein this detection device detects the source video signal and the display format of the display device, whilst the processing device configured to convert the source video signal and output it to at least one corresponding display device, whereby a method and device for outputting various video signals can be achieved, and avoid users from the trouble at the time of transition period of display system.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: June 30, 2009
    Assignee: Via Technologies, Inc.
    Inventors: Morgan Chang, Sheng-che Tsao
  • Patent number: 7551229
    Abstract: An apparatus comprising a tuner module configured to demodulate a first television signal and a second television signal that corresponds to the first television signal; and a controller electronically coupled to the tuner module, the controller configured to compare a value of a first variable to a threshold level, the value of the first variable related to a quality of the first television signal; wherein the controller switches from outputting for display the first television signal to outputting for display the second television signal that corresponds to the first television signal in response to comparing the value of the first variable to the threshold level.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: June 23, 2009
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Arthur H. Ozaki, Michael Donald McDermott, Peter Shintani
  • Patent number: 7545386
    Abstract: The conversion of Mobile Display information used in a wide variety of Mobile Devices into Unified Image Formats is disclosed to enable viewing on a desktop computer system in addition to manual and automated testing of Mobile Content. In order to support the variety of Mobile Displays available, and to process the Mobile Display information in real-time, a configurable emulation system may be employed to model the Image Commands being used for each type of available Mobile Display. This emulation system can then provide a representative view of the image as it would be displayed on the Mobile Display, but in a format that can be utilized by other manual or automated systems.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: June 9, 2009
    Assignee: Mobile Complete, Inc.
    Inventors: David John Marsyla, Faraz Ali Syed
  • Patent number: 7545407
    Abstract: The present invention relates to a method of recording still pictures and audio data onto a rewritable recording medium. The present method records still-picture video and audio files of the recording format of a digital till camera under a subdirectory of a DCIM (Digital Camera IMages) directory of DCF (Design rule for Camera File system) and still-picture video and/or audio files of the recording format of a disk video recorder under a subdirectory of a moving-picture directory, creates management information for searching and presentation control of the still-picture video and audio files below the DCIM directory and the still-picture video and/or audio files below the moving-picture directory, and records the created management information under another subdirectory of the moving-picture directory. Thus, efficient and convenient file management is possible through a single recording medium, which results in remarkable improvement of use convenience of a motion picture recorder and a digital still camera.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: June 9, 2009
    Assignee: LG Electronics Inc.
    Inventors: Soung Hyun Um, Kang Soo Seo, Byung Jin Kim
  • Publication number: 20090141172
    Abstract: A TV system, a multimedia processing apparatus, and a method thereof are provided. The TV system comprises a multimedia processing apparatus and a display unit. The multimedia processing apparatus comprises a multiplexer, a controller, and a detector. The multiplexer receives a plurality of input signals. The controller signals the multiplexer to select one of the plurality of input signals in turn. The detector detects the selected input signal to generate a status of the selected input signal until all of the input signals have been detected. Then, the display unit displays the detected input signals.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 4, 2009
    Applicant: MEDIATEK, INC.
    Inventor: Chuan-Te Liu
  • Patent number: 7542097
    Abstract: A video signal processing apparatus and a video signal processing method are capable of outputting a display having a high picture quality by effectively utilizing an output resolution. A microcomputer controls a shrinkage filter, a memory and an enlargement filter to carry out a resolution conversion process of converting the signal format of a video signal into a selected output signal format depending on the output format setting of a D terminal of the video processing apparatus, and outputs the video signal.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: June 2, 2009
    Assignee: Sony Corporation
    Inventor: Taro Suito
  • Patent number: 7538821
    Abstract: A display apparatus and a method of displaying an image using the display apparatus.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: May 26, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Won-seok Ahn, Young-ho Lee
  • Patent number: 7532252
    Abstract: A video signal mode detector for automatically detecting and indicating the type of video signal being received in terms of its video signal characteristics, including horizontal line count and progressive or interlaced scanning.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: May 12, 2009
    Assignee: National Semiconductor Corporation
    Inventor: Dongwei Chen
  • Patent number: 7528889
    Abstract: A system and method for displaying frames with dynamically changing display parameters is described herein. The display engine stores new display parameters detected by the decoder in one buffer of a ping pong buffer, while continuing to use another set of display parameters stored in the other ping pong buffer. The display engine switches the buffers when the first frame for which the new display parameters are applicable is to be presented.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: May 5, 2009
    Assignee: Broadcom Corporation
    Inventors: Sandeep Bhatia, Srilakshmi D, Srinivasa Mpr, Mahadhevan Sivagupnaman
  • Publication number: 20090109336
    Abstract: A video device comprises: a video signal processor generating a standard definition video signal at least having a composite signal and a high definition component video signal; an outputting unit outputting the standard definition video signal or the high definition component video signal to a cable to be connected; a discriminating unit discriminating a kind of cable connected to the outputting unit; and a switch allowing the outputting unit to selectively output the standard definition video signal and the high definition component video signal on the basis of the discrimination result of the discriminating unit. When the discriminating unit determines that the cable connected to the outputting unit is a cable for a high definition signal, the switch allows the outputting unit to output the high definition component video signal.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 30, 2009
    Inventors: Hiroyuki WATANABE, Makio Niwa
  • Patent number: 7522217
    Abstract: A system for overlaying a motion video signal onto an analog signal on a display. The system includes a motion video processing unit for receiving and processing the motion video signal into a signal having an analog video format, a video format analyzer and synchronizer device for receiving the analog signal and for determining video timing parameters and a corresponding original pixel clock of the analog signal and for controlling video timing parameters of the motion video signal to match the video timing parameters of the analog signal determined by the video format analyzer and synchronizer device so as to provide an output motion video signal which is synchronized with the analog signal and a display determining device for determining the display of the analog output signal or the synchronized output motion video signal on the display.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: April 21, 2009
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Mark A. Champion, David H. Bessel
  • Patent number: 7518661
    Abstract: A system and method for detecting a mode of an audio signal is disclosed. The system includes an integrated circuit with an input to receive a signal and an audio processor coupled to the input. The audio processor includes an audio standard detection module, wherein the audio standard detection module detects a characteristic of the received signal that identifies a television audio standard by measuring the energy level of a plurality of different frequency bands of the received signal.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 14, 2009
    Assignee: Sigmatel, Inc.
    Inventor: Jeffrey Donald Alderson
  • Publication number: 20090079870
    Abstract: A first candidate selection portion 130 selects format candidates based on the horizontal synchronizing cycle and the vertical synchronizing cycle of an input video signal. A second candidate selection portion 140 selects formats having the tolerance ranges for the horizontal synchronizing cycles within which the horizontal synchronizing cycle of the input video signal falls as format candidates. A format decision portion 160 determines the format of the input video signal from format candidates from the first candidate selection portion 130 when format candidate(s) is obtained by the first candidate selection portion 130, and determines the format of the input video signal from format candidates selected by the second candidate selection portion 140 when no format candidate is obtained by the first candidate selection portion 130.
    Type: Application
    Filed: August 14, 2008
    Publication date: March 26, 2009
    Inventor: Takeo Matsui
  • Patent number: 7508453
    Abstract: A video data stream containing picture video and a vertical synchronization signal is processed in a microprocess that performs statistical evaluation of the frequency of the vertical synchronization signal of the video data stream. The statistical evaluation includes producing the statistical mean value and variance of the frequency of the vertical synchronization signal.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: March 24, 2009
    Assignee: Thomson Licensing
    Inventor: Janghwan Lee
  • Patent number: 7505088
    Abstract: A signal selector selects one of a ground wave digital signal and a digital cable television signal in accordance with program selection information and transmits the selected signal to a shared tuner circuit. The shared tuner circuit selects only a signal of a desired channel from a signal output from the signal selector and converts the selected signal to an IF signal. An 8VSB and QAM demodulation circuit receives the IF signal from the shared tuner circuit and demodulate the signal in an 8VSB or QAM system to generate a transport stream. Thus a tuner for ground wave digital broadcasting and that for digital CATV broadcasting can be implemented as a shared tuner circuit surrounded by a single casing.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 17, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masanori Kitaguchi
  • Patent number: 7502073
    Abstract: A signal processor generates signals to reproduce video and audio from a received encoded digital signal. The signal processor includes: a first decoder for separating a first video signal and a first audio signal from a digital signal; a second decoder for separating a second video signal and a second audio signal from a digital signal; a video controller, which receives the first and second video signals, subjects a selected video signal to video processing; a clock generator for generating a clock signal of which the frequency corresponds to that of the first audio signal; an audio processor, which receives the second audio signal and the clock signal and converts the frequency of the second audio signal into that of the first audio signal; and an audio switch which outputs one of the two audio signals that is associated with the video signal being selected by the video controller.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: March 10, 2009
    Assignee: Panasonic Corporation
    Inventor: Minoru Umesako
  • Publication number: 20090051812
    Abstract: A signal adjuster is disclosed to include a first connector and a second connector respectively connected to a signal source and a video display device, a buffer for buffering a high frequency signal, a signal bandwidth detector connected to the buffer for detecting the continuation condition of the high frequency signal, an adjustable equalizer connected between the buffer and the second connector and connected with the signal bandwidth detector for actively adjusting signal strength of the high frequency signal subject to the detection of the signal bandwidth detector, an amplifier for amplifying the enhanced high frequency signal from the adjustable equalizer, and a driver for driving the second connector to output the amplified high frequency signal from the amplifier to the video display device.
    Type: Application
    Filed: October 28, 2008
    Publication date: February 26, 2009
    Applicant: SURE-FIRE ELECTRICAL CORPORATION
    Inventor: Chang-Pin Wang
  • Patent number: 7495680
    Abstract: A display apparatus that displays a composite image signal obtained by combining an image signal for a side panel with an input image signal corresponding to a picture region and carries out a picture display based on peak luminance enhancement control, first detects an average brightness level of the input image signals when generating the image signal for the side panel. This sets the brightness level of the image signal for the side panel before the composition based on the detection result of the average brightness level of the input image signals so as to obtain a display brightness level in which the visual brightness of the displayed side panel is substantially constant, as a result of the peak luminance enhancement control. Accordingly, the brightness of the side panel becomes constant, thereby alleviating a burn-in phenomenon.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: February 24, 2009
    Assignee: Sony Corporation
    Inventor: Tomohiro Kimura
  • Patent number: 7495707
    Abstract: The present invention relates to a signal processing apparatus and method, a recording medium, and a program, in which a more preferable class can be easily selected. A region extracting unit 151 extracts a class tap from an input composite video signal, and pattern detecting units 152 to 154 detect patterns for classes by using different predetermined methods. A class-code determining unit 155 determines a class based on information from an evaluation table 156, and a coefficient memory 157 supplies a predictive coefficient corresponding to the class to a predictive computing unit 159. The predictive computing unit 159 performs predictive computing based on a predictive tap supplied from a region extracting unit 158 and the predictive coefficient supplied from the coefficient memory 157, so that a component Y signal is generated and is output therefrom. The present invention can be applied to a television receiver.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: February 24, 2009
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Shizuo Chikaoka, Sakon Yamamoto
  • Patent number: 7495706
    Abstract: In a video signal setting device, first, a setting screen displaying section in a system controller displays a setting screen on a TV receiver by an interlace video signal. After that, a progressive outputting section outputs a progressive signal to the TV receiver for a predetermined time with progressive setting. Next, an interlace output returning section returns a present output setting to an output setting to output the interlace video signal. Then a user sets a progressive output setting when a condition of screen by the progressive signal is normal and the user sets an interlace output setting in the case of not being normal.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: February 24, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventor: Takuya Suzuki
  • Publication number: 20090041015
    Abstract: A method for intelligently distributing packets of a data stream to multiple links of a network for simultaneous transmission via the multiple links, and for periodically re-allocating the distribution, achieves higher network throughput. The method has particular application for streaming audio-video traffic on a home local area network that has a source device, like a media server PC, and a destination device, like a digital TV. One of the links is assigned as the primary link (PL), and another link is assigned as a backup link (BL). Periodically a signal is sent from the source device over each link to the destination device and the round-trip travel time (RTT) for the signal and response for each link is measured. The RTT for a link is a good measure of the current end-to-end link status and generally will change during the time that the data stream is being transmitted as a result of certain events, such as traffic load and interference.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 12, 2009
    Applicant: SHARP LABORATORIES OF AMERICA, INC.
    Inventor: Fan Zhang
  • Publication number: 20090028391
    Abstract: The invention discloses motion detecting method and apparatus thereof. The method and apparatus are utilized to detect a motion condition of a target pixel.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Inventor: Wen-Jyh CHEN
  • Publication number: 20090027554
    Abstract: A video apparatus and a method for recognizing a digital interface thereof are disclosed. The method for recognizing the digital interface of the video apparatus enables a multimedia source to re-execute a high definition multimedia interface (HDMI) recognition to deal with errors when the multimedia source connected using the HDMI fails to recognize that the video apparatus supports the HDMI due to a cable connection error, an EDID recognition error, or an HDCP authentication error. The video apparatus determines whether or not a format of an input video signal is HDMI or DVI, and displays a result on a screen so that a user can recognize the format. As a result, the video apparatus enables a user to recognize whether or not the HDCP authentication error is occurred, and notifies the user of a method for improving the cause of the HDCP authentication error.
    Type: Application
    Filed: February 5, 2008
    Publication date: January 29, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Young-joong NOH
  • Patent number: 7480011
    Abstract: A video processing chip capable of adjusting aspect ratio and a method of displaying an image thereby are provided. The video processing chip outputs an adjusted image signal according to a video signal to an LCD panel to display an image. The video processing chip includes a video processor, a ratio detector, a timing controller, and a multiplexer. The video processor generates an image signal according to the video signal. The ratio detector detects the aspect ratio of the video signal, and outputs a ratio control signal according to a ratio setting value. The timing controller outputs a vertical blanking signal, a horizontal blanking signal, and a blanking data in responding to the ratio control signal. The multiplexer selects the blanking data signal or the image signal as the adjusted image signal to be outputted, so that the displayed image has the aspect ratio corresponding to the ratio setting value.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: January 20, 2009
    Assignee: Au Optronics Corp.
    Inventors: Min-Chien Kuo, Chi-Mao Hung
  • Patent number: 7468755
    Abstract: A video signal receiving device comprises signal processing units which separate video components and audio components from received signals conforming to HDMI standard, and carry out a decoding process on the components, respectively, to thereby restore analog video signals and audio signals, a detecting unit which detects a change in received signals to generate a first detection signal, and a detecting unit which detects a change in a received connection recognition signal to generate a second detection signal, and a mute control unit which carries out a mute process for the signal processing units not to output audio signals.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: December 23, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Morio Ando
  • Patent number: 7468757
    Abstract: Herein described are at least a system and a method of more effectively detecting and correcting irregularities when performing an inverse telecine deinterlacing of pull-down video. These irregularities may be caused by editing of the video, which when left undetected, may result in displaying video of unacceptable quality. In a representative embodiment, the method determines a first pixel luminance of an absent pixel using a luminance generated from one or more first present pixels, determines a second pixel luminance of the absent pixel using a luminance generated from one or more second present pixels, and determines a first luminance approximation for the absent pixel. In a representative embodiment, the system comprises a memory, a software resident in the memory, and a processor used to execute the software, such that executing the software performs the inverse telecine deinterlacing to result in an improve displayed video image quality.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: December 23, 2008
    Assignee: Broadcom Corporation
    Inventor: Richard Hayden Wyman
  • Patent number: 7468756
    Abstract: Herein described is a system and method of detecting 2:2 and/or 3:2 pull-down video. In addition, aspects of the present invention provide a system and method to identify and lock onto a field phase of a received 2:2 or 3:2 pull-down video signal. The system for detecting a field phase in 2:2 pull-down video comprises a first circuitry that computes unexpected motion values, a second circuitry that implements an alternating straight through or crossover function, a third circuitry that performs processing and generates one or more control signals, a pair of counters, and a phase selection circuitry. The method comprises computing luminance approximations of pixels associated with an output video frame, computing one or more first differences, and computing a second difference for each absent pixel of the output video frame based on one of five field phases.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: December 23, 2008
    Assignee: Broadcom Corporation
    Inventor: Richard Hayden Wyman
  • Publication number: 20080303947
    Abstract: An AV device comprises a processing section for carrying out a process for view and listening, a signal output section for outputting a signal to the processing section, first signal input sections including a mobile audio input terminal, a first detecting section for detecting insertion/removal of a plug into/from the mobile audio input terminal, and a first control section for controlling the connection between the first signal input sections and the signal output section according to the result of the detection by the first detection section. Another AV device is provided in which insertion/removal of a plug into/from a second signal input section and indication information is outputted to a second video display section according to the detection result. With such constitutions, various processings can be carried out according to insertion/removal of a plug.
    Type: Application
    Filed: August 25, 2006
    Publication date: December 11, 2008
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Sunao Ohnishi, Tomoya Nakamura, Hideyoshi Fukuoka, Kenroh Sikada
  • Patent number: 7453520
    Abstract: An apparatus and method of processing a plurality of video input signals in a display device by sensing a new video signal, aside from a presently displayed video signal, input through a video interface, and automatically displaying a menu of display options for the newly input video signal to convert input/output paths of video signals from the presently displayed video signal to the newly input video signal. Input of a new video signal, aside from a presently displayed video signal, is periodically checked, and if the new video signal is input, a new video signal input message and a predetermined menu for selecting whether to display the new video signal are automatically displayed. According to an input menu selection signal, the new video signal is displayed or the displaying of the presently displayed video signal is continued.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: November 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jung-dae Kim
  • Patent number: 7450180
    Abstract: A (50) method and apparatus (110) for determining a scanning format of a frame of a video signal determines (52) if any interfield motion exists within the frame; and indicates (53) that the frame is interlaced scanned if interfield motion is detected and indicates (54) that the frame is progressive scanned if interfield motion is not detected. The determination is based on spatial correlation within and around one or more edges of one or more objects in the frame. This can be accomplished by identifying zig-zag or zipper effects near one or more edges of one or more objects in the frame, identifying motion between fields or identifying motion near one or more edges of one or more objects.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: November 11, 2008
    Assignee: General Instrument Corporation
    Inventors: David M. Baylon, Kevin M. McKoen
  • Patent number: 7446818
    Abstract: An apparatus and related method for detecting film mode using motion estimation. In the method, a pixel region in each field is sequentially chosen as a target pixel region in a target field to be processed with a motion estimation operation.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: November 4, 2008
    Assignee: Realtek Semiconductor Corp.
    Inventor: Po-Wei Chao
  • Patent number: 7436458
    Abstract: A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 14, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Satoru Takashimizu, Kenji Katsumata, Yuji Yamamoto, Satoshi Iimuro, Takanori Eda, Shuko Sei
  • Publication number: 20080246874
    Abstract: A method for detecting a video signal that represents an image sequence and exhibits linewise repeated video data comprises selecting a plurality of line groups each having a first, a second and a third line, which originate from two consecutive fields in the case of a field sequence and from one field in the case of a frame sequence. The method determines for each line group a first line-distance measure for a difference between video contents of the first and second lines and a second line-distance measure for a difference between video contents of the second and third lines. The method then interprets the first and second line-distance measures with regard to the presence of a significant difference between these line-distance measures.
    Type: Application
    Filed: April 7, 2008
    Publication date: October 9, 2008
    Inventors: Marko Hahn, Christian Tuschen, Gunter Scheffler, Markus Schu
  • Patent number: 7430019
    Abstract: An apparatus to improve an image sharpness and a method thereof which can improve the image sharpness of an image through an adaptive operation of the apparatus according to resolutions of input/output video signals and an emphasis of edge portions of the image.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: September 30, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Byeong-jin Kim, Hyo-jin Son
  • Patent number: 7430017
    Abstract: Provided are an apparatus for automatically detecting broadcasting signals and a method of the same to conveniently detect the broadcasting system of the broadcasting signals. The apparatus includes a frequency detection unit detecting a color sub-carrier frequency of the broadcasting signals, a synchronous signal separation unit separating a horizontal synchronous signal of the broadcasting signals, and a control unit determining a type of broadcasting system of the broadcasting signals using the color sub-carrier frequency and the horizontal synchronous signal.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 30, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung-chull Lee
  • Publication number: 20080211965
    Abstract: The present invention is generally directed to automated methods and systems for converting image streams having a first frame rate to a second frame rate without the need for user intervention. Embodiments of the present invention obviate the effects of processing of a telecine process. In one embodiment, where frames are encoded by a single video field, a statistical analysis of the differences between adjacent frames reveals a telecine pattern, thereby identifying which frames to remove. In another embodiment, where frames are encoded by even and odd video fields, which are interleaved to produce the frame, a statistical analysis of the differences between adjacent fields reveals the telecine pattern, identifies which frames to remove, and identifies frames that are candidates for re-interleaving.
    Type: Application
    Filed: April 2, 2008
    Publication date: September 4, 2008
    Applicant: RealNetworks, Inc.
    Inventor: Alan Francis Lippman
  • Patent number: 7420617
    Abstract: An image display apparatus that detects a picture defect and shifts an image region to eliminate the picture defect. The image display apparatus includes a memory unit that temporarily stores an input image signal, a memory control unit that controls a readout start address for the memory unit, a display unit to which the image signal read out of the memory unit is supplied, a detection unit that detects an aspect ratio of the input image signal, and an address control signal generation unit which receives an output from detection unit and generates a readout start address control signal for the memory unit.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: September 2, 2008
    Assignee: Sony Corporation
    Inventors: Aya Takechi, Hiroyuki Kojima, Nobuo Ueki
  • Patent number: 7421191
    Abstract: An input check device generates a connected apparatus table showing the correspondence between recording/reproducing devices and their respective output signals on the basis of instruction signals entered from a connection information setting unit. A storage stores information as to which is the current target of reproduction among the recording/reproducing devices connected to the monitor device and also stores the connected apparatus table generated by the input check device.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: September 2, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichiro Umemoto, Takashi Toyota
  • Patent number: 7417688
    Abstract: An apparatus for automatically detecting and selecting between progressively scanned and interlaced signals has an input video signal 11 applied to a progressive frame detector 12, a de-interlacer 14 and a compensating delay 13 which has the same latency as the de-interlacer 14. The progressive frame detector determines if the input video signal is an interlaced signal or a progressively scanned signal. If it is determined that the applied signal is interlaced, then output from the de-interlacer 14 is selected. If, on the other hand, it is determined that the applied signal is progressively scanned, then the input video signal is selected after passing through the compensating delay. In both instances, the selected output is a progressive video signal 19 which may be transmitted if the device is used in an encoder or applied to a display device if the apparatus is used in a decoder.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: August 26, 2008
    Assignee: Tandberg Television ASA
    Inventors: Alois Martin Bock, Jeremy Bennett
  • Patent number: 7400364
    Abstract: A system for automatically tuning a primary broadcast receiver using a secondary broadcast receiver to receive a first broadcast signal corresponding to a source of an origin program, one or more program transition detectors to monitor first broadcast signal tuned by the secondary broadcast receiver to determine and signal a transition from a non-original program content to origin program content while a user views or hears alternate programming from a primary broadcast receiver, and automatically tuning of the primary broadcast receiver to the first broadcast signal upon detection by the program transition detector that one or more of user-specific tune conditions have been met.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: July 15, 2008
    Assignee: International Business Machines Corporation
    Inventors: Yen-Fu Chen, John Hans Handy-Bosma, Nancy T. Sun, Keith Raymond Walker
  • Publication number: 20080158422
    Abstract: A circuit, method and system for determining which type of video signal is to be generated by a media player are described herein. In the described embodiment, the media player has three video ports for transferring different types of video signal with each type of video signal requiring a predetermined number of ports for transferring its video signals, for example s-video requires two video ports. To determine which type of signal to generate, the detection circuit comprises a detector arranged to detect which of the video ports have a load coupled thereto, and is further arranged to control the media player to generate the type of video signal according to the number of ports detected that is coupled with the load.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Applicant: CREATIVE TECHNOLOGY LTD
    Inventors: Johnson CHUA, Chin Fang LIM
  • Patent number: 7385648
    Abstract: The present invention relates to a correction of image status information assigned on a local basis to a video image. Upon evaluating a predefined image portion comprising a plurality of image elements, incorrect determinations are detected and eliminated.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: June 10, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Michael Grundmeyer, Lothar Werner
  • Patent number: 7372508
    Abstract: The present invention presents an information-outputting apparatus, an information-reporting method and an information-signal-supply-route-selecting method, which provide a digital-content utilization environment giving the user a high degree of freedom to make use of the apparatus and the methods. The information-outputting apparatus receives an isochronous packet transmitted by a source external apparatus by adoption of an isochronous communication method through a digital bus connecting the external apparatus to the information-outputting apparatus. In the information-outputting apparatus, an IEEE 1394 I/F circuit extracts information on the source electronic apparatus and information on the transmission format. A control unit supplies these pieces of information to an OSD-generating circuit for displaying them on a screen of a display unit employed in the information-outputting apparatus.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: May 13, 2008
    Assignee: Sony Corporation
    Inventors: Hiroshi Utsunomiya, Satoshi Kobayashi, Futoshi Kaibuki
  • Patent number: 7369179
    Abstract: The present invention is generally directed to automated methods and systems for converting image streams having a first frame rate to a second frame rate without the need for user intervention. Embodiments of the present invention obviate the effects of processing of a telecine process. In one embodiment, where frames are encoded by a single video field, a statistical analysis of the differences between adjacent frames reveals a telecine pattern, thereby identifying which frames to remove. In another embodiment, where frames are encoded by even and odd video fields, which are interleaved to produce the frame, a statistical analysis of the differences between adjacent fields reveals the telecine pattern, identifies which frames to remove, and identifies frames that are candidates for re-interleaving.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: May 6, 2008
    Assignee: RealNetworks, Inc.
    Inventor: Alan Francis Lippman
  • Patent number: 7365798
    Abstract: The procedure of the invention acquires a maximum RB value, which is a largest value of an R signal component and a B signal component, on the assumption that the signal format of an input video signal is an RGB signal, and obtains an RGB probability corresponding to a degree of largeness of the maximum RB value. The procedure also acquires a minimum color difference value, which is a smallest value of a color difference signal component, on the assumption that the signal format of the input video signal is a Y/color difference signal, and obtains a color difference probability corresponding to a degree of smallness of the minimum color difference value. The procedure compares the RGB probability with the color difference probability and thereby determines whether the signal format of the input video signal is the RGB signal or the Y/color difference signal. This arrangement effectively enhances the haccuracy of discrimination between the RGB signal and the Y/color difference signal.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: April 29, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Yukihiro Nashida
  • Patent number: 7359007
    Abstract: A system and same method are provided for producing video signal timing to a display apparatus that has different input/output image/video format. In addition to an image scaler, the system comprises a clock adjuster including a first and a second clock generator. The first clock generator generates a first clock signal by which the input/source pixel data included in the input/source image frame are received. The second clock signal is generated and adjusted to have an average clock period such that the ratio of the input and output frame rates is substantially kept constant. Thus, the skew between the source/input images and the display/output images can be adjusted, and the output frame repeating and/or dropping can be avoided.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: April 15, 2008
    Assignee: Mediatek Inc.
    Inventor: Jen-Shi Wu
  • Patent number: 7349031
    Abstract: A television receiver having the function of displaying a plurality of types of television program videos which differ in the aspect ratio comprises means for judging, when channels are switched, whether or not a letter box is displayed on the previous channel and is also displayed on the new channel, and means for moving, when it is judged that the letter box is displayed on the previous channel and is also displayed on the new channel, the position of the letter box displayed on the new channel from the position of the letter box displayed on the previous channel.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 25, 2008
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Tatsuya Hosomi
  • Patent number: 7345709
    Abstract: A method and an apparatus of displaying component video signals. Firstly, a component video signal is received, and a vertical synchronous signal and a horizontal synchronous signal are separated from the component video signal. Thereafter, the format of the component video signal is determined by analyzing the vertical synchronous signal and the horizontal synchronous signal, and a video processing route corresponding to the format of the component video signal is chosen to generate visual output from the component video signal. Thus the visual output is displayed.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: March 18, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Chien-Ken Chang, Chung-Yi Yang, Chun-Hao Lee, Bao-Kim Liu
  • Patent number: 7339627
    Abstract: Certain embodiments of the invention may be found in a method and system for automatic aspect ratio detection and may comprise scanning lines in at least a selected portion of an image and locating a first reference pixel in one of the scanned lines. A corresponding sliding sum and a sliding number may be generated starting from the first reference pixel and a white edge determined based on the generated sliding sum and/or the generated sliding number. The first reference pixel may be a non-black pixel and a value which corresponds to and defines non-black may be variably defined. The sliding sum and the sliding number may utilize m bins, where m is greater than one (1). A luma sum threshold may be compared with the generated sliding sum to locate the white edge for aspect ratio detection.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: March 4, 2008
    Assignee: Broadcom Corporation
    Inventors: Brian Schoner, Darren Neuman
  • Patent number: RE40201
    Abstract: Disclosed is a video signal converting apparatus and a display device having the same which may convert a low-resolution video signal from a host into a different-resolution video signal capable of being displayed on the entire screen of a high-resolution supporting display device. The apparatus has a detector for detecting a first resolution signal indicative of a resolution of the first display signal using horizontal and vertical synchronization signals related to the first display, a comparator for comparing the first resolution signal with a second resolution signal indicative of a reference resolution; and a converter for converting the first display signal into the second resolution signal, if there is a difference between the first and the second resolution signals.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: April 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Byoung-Han Kim