Bandwidth Reduction System Patents (Class 348/384.1)
  • Patent number: 8175325
    Abstract: Watermark information (denoted WM) consists of several symbols which are embedded continuously by reference sequence modulation in an audio or a video signal. At decoder site the WM is regained using correlation of the received signal with a corresponding reference sequence. The symbols form watermark data frames. The invention uses for the bit values ‘zero’ and ‘one’ in each payload symbol and for each payload symbol in a watermark data frame different reference sequences, without using synchronisation symbols. A logarithmic search is performed in the WM decoder to reduce the numbers of correlations to be calculated. The invention makes watermarking of critical sound signals much more robust.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: May 8, 2012
    Assignee: Thomson Licensing
    Inventors: Peter Georg Baum, Ulrich Schreiber
  • Publication number: 20120105715
    Abstract: The present invention relates to an displaying apparatus comprising: a signal converting unit demodulating a digital signal generated by a tuner and encodes an analog signal decoded by the tuner; a decoding unit decoding the demodulated digital signal or the encoded analog signal to generate an image signal or a voice signal; a storing unit storing the image signal or the voice signal; a broadcast program processing unit providing information of a next program using the image signal or the voice signal while a current program is broadcasted; a controlling unit controlling the decoding unit and the broadcast program processing unit; and a displaying unit displaying information of the next program on broadcasting the current program under the control of the controlling unit.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 3, 2012
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Young Chul Kim
  • Patent number: 8161513
    Abstract: A method of receiving a broadcast signal including a Non-Real-Time (NRT) service and a broadcast receiver are disclosed herein. A method of receiving a broadcast signal including an NRT service, the method comprises receiving a broadcast signal including first signaling information and second signaling information, identifying the NRT service based on the first signaling information, parsing the second signaling information to identify an Internet Protocol (IP) address of an NRT service signaling channel, receiving the NRT service signaling channel by accessing the IP address, and downloading a desired NRT service based on the NRT service signaling channel.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jong Yeul Suh, Gomer Thomas, Jae Hyung Song, Jin Pil Kim, Ho Taek Hong, Joon Hui Lee
  • Patent number: 8161512
    Abstract: A method of receiving a broadcast signal including a Non-Real-Time (NRT) Receiver Targeting service is disclosed herein. A method of receiving a broadcast signal including a Non-Real-Time (NRT) Receiver Targeting service, the method comprises receiving broadcast signal including first signaling information and second signaling information, identifying an NRT service based on the first signaling information, parsing a Receiver Targeting Descriptor from the second signaling information, determining validity of the NRT service or an NRT content based on a targeting_criterion_type_code included in the Receiver Targeting Descriptor, and downloading the NRT service or the NRT content when a receiver determines the NRT service or the NRT content to be valid.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jong Yeul Suh, Kwan Suk Kim, Gomer Thomas, Jae Hyung Song, Jin Pil Kim, Ho Taek Hong, Joon Hui Lee
  • Patent number: 8144998
    Abstract: The present invention relates to an image processing method and apparatus for processing compressed image generated by segmenting image data into a plurality of MCUs and using a compression method in which a frequency transformation is applied to each MCU. In a case that the compressed image is decoded, each MCU is classified according to the frequency coefficients therein, and color separated data is generated for each MCU based on the decoded data resulting from the decoding and the results of the MCU classification.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: March 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuya Imafuku
  • Patent number: 8139872
    Abstract: The claimed subject matter provides a system and/or a method that facilitates optimally and efficiently utilizing an image file format. A server can host an image that is partitioned into two or more tiles, wherein the two or more tiles collectively represent the image in entirety and are defined in at least one image file format. A tile generator can evaluate at least one tile to identify a suitable image file format based upon at least one of a characteristic of such file format or a context of a use for the tile. A browser can utilize the tile in the identified file format in order to render a portion of the image.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 20, 2012
    Assignee: Microsoft Corporation
    Inventors: Jonathan R. Howell, Jeremy E. Elson, John R. Douceur
  • Publication number: 20120013746
    Abstract: A server may provide information describing characteristics of audio and video components to a client, separately from encoded samples of the audio and video components themselves. The client may use the information to select components, and then to request the selected components, e.g., in accordance with a streaming network protocol. In one example, an apparatus for sending encapsulated video data includes a processor configured to determine characteristics for components of a plurality of representations of video content, wherein the characteristics comprise at least one of a frame rate, a profile indicator, a level indicator, and dependencies between the components, and one or more interfaces configured to send the characteristics to a client device, receive a request from the client device for at least one of the components after sending the characteristics, and send the requested components to the client device in response to the request.
    Type: Application
    Filed: January 6, 2011
    Publication date: January 19, 2012
    Applicant: QUALCOMM Incorporated
    Inventors: Ying Chen, Marta Karczewicz, Yong Wang
  • Publication number: 20120008774
    Abstract: A multifunction device for television set and a method to enhance video content provided to a display device of said television set. The multifunction device comprises an input for receiving audio/video data from an audio/video content data source, an output for outputting audio/video data to the display device, and communication means for accessing Internet or a local area network for collecting additional data. The multifunction device being connected and powered by a common interface of the display device further comprises image processing means configured for receiving first image data from the input, a converter configured for receiving additional data from Internet or a local area network and for converting said additional data into additional image data, an image merging module configured for combining said additional image data with all or part of the input first image data to obtain second image data to be forwarded to the output connected to the display device.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Applicant: Nagravision S.A.
    Inventors: André Kudelski, Christophe Nicolas
  • Patent number: 8090025
    Abstract: A residual picture is produced and encoded that is a residual picture that is a residual signal between a picture to be coded that is an input moving-picture video signal to be subjected to coding and a predictive picture produced from a reference picture that is a local decoded video signal for each of a plurality of rectangular zones, each composed of a specific number of pixels, into which a video area of the moving-picture video signal is divided. A boundary condition of each of a plurality of borders is obtained between the rectangular zones and another plurality of rectangular zones adjacent to the rectangular zones, and a border, of the reference picture, having a boundary condition that matches the boundary condition, is found by motion-vector search in the reference picture, and border motion-vector data is generated that is data on a motion vector from a border of the rectangular zone in the picture to be coded to the border of the reference picture thus found.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: January 3, 2012
    Assignee: Victor Company of Japan, Ltd.
    Inventor: Satoru Sakazume
  • Patent number: 8055091
    Abstract: A method and apparatus, particularly suited to SIMD instruction sets, to filter streaming video information encoded under a predictive encoding algorithm specified under video encoding standards, such as MPEG 4 or H.264/AVC. The filtering operation de-blocks or removes unwanted borders in the perceived video. During the filtering process, a series of filtering mask is generated based on temporal and spatial statistics of predictive encoded video information, which is then recursively applied to the video in order to gate filtered or unfiltered video to an output channel according to coefficients of the masks. The filtering mask effectively yields a decision or rule-based map that transforms the video on a pixel-by-pixel basis thereby avoiding complex and processor-intensive decision tree logic customarily required to process individual pixels of successive macroblocks that may have different filtering requirements.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Krishna C. Ratakonda, Cesar A. Gonzales, Thomas A. Horvath, Thomas McCarthy
  • Publication number: 20110261889
    Abstract: An interactive user interface, such as a remote terminal user interface, is compressed prior to transmission to a video client. The compression may be performed independently of any other video that may be simultaneously transmitted to the video client. At the client side, two compressed video streams (remote user interface and video content) may be decompressed independently of each other. In some cases, technology already existing in some client devices, such as picture-in-picture (PiP) capability, may be leveraged to decompress the received compressed remote user interface without needing to modify the hardware of those client devices.
    Type: Application
    Filed: April 27, 2010
    Publication date: October 27, 2011
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventor: Mark Francisco
  • Publication number: 20110249720
    Abstract: Reducing a frame size in a memory for a receiver includes compressing a first analog television picture frame, storing the compressed frame in the memory, decompressing the compressed frame from the memory, obtaining a second analog television picture frame. The first frame includes a first set of pixels that further include at least one of Red/Green/Blue (RGB) samples and, the second frame includes a second set of pixels. Each of the first set of pixels of first frame being decompressed are compared with the corresponding second set of pixels of second frame to obtain an alpha (?) factor. A Signal to Noise Ratio (SNR) and a motion per pixel of the first set of pixels and the second set of pixels are compared. Each of a pixel is displayed based on the ? factor.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 13, 2011
    Applicant: NEWPORT MEDIA, INC.
    Inventor: Nabil Yousef Wasily
  • Patent number: 8027385
    Abstract: A method (1600) and apparatus (220) for encoding a sequence of images for transmission over a communication network is disclosed. Initially (1602) an object-based first image is rendered from a computer graphics application (240). The rendered first image is then (1604) encoded (226) according to a predetermined encoding scheme and transmitted (1606) for remote display (116). A test (1608) is then performed to determine if any more images are to be rendered. If so, the next (further) image is rendered (1612) from the computer graphics application (240). Changes between the first image and the further image are then determined (1614) from a change indicating output (244,246) of the computer graphics application (240). The identified changes are then used (1616) to determine a manner in which the further image is to be encoded according to the predetermined format. The further image is then encoded (1618) based upon the changes, and transmitted (1620) for remote display.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: September 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Zhenya Alexander Yourlo
  • Publication number: 20110216162
    Abstract: Techniques for multi-view video format control are provided. In some embodiments, a display video format supported by a display panel is determined. A video format code is extracted from a coded bitstream in which a plurality of images is encoded in two or more source video formats. The video format code identifies a source video format in which a set of images in the plurality of images is encoded. A video format filter is selected to modify the set of images encoded in the source video format to generate another set of images encoded in the display video format. The other set of images encoded in the display video format is sent to the display panel.
    Type: Application
    Filed: January 4, 2011
    Publication date: September 8, 2011
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Gianluca Filippini, Reinhard Steffens, James Dougherty, Thomas Zato
  • Publication number: 20110216239
    Abstract: A system transmits human interface data (HID) as ancillary data to a television receiver over white space. Content on a user mobile device may be wirelessly displayed on an external display device. It may be desirable to have user interactions with the mobile device (such as controls for video games) displayed on the external display device in a manner that does not suffer from the latency of standard video being set to the display device. The HID may be captured and processed separately from the video data. The HID may be formed into a transport stream for transmission over white space. The HID may be included as ancillary data in the transport stream. Timestamps may be used to coordinate the transmission of the HID as well as its processing when received by a television receiver.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: Qualcomm Incorporated
    Inventor: Vijayalakshmi R. Raveendran
  • Patent number: 8000539
    Abstract: A method and apparatus is disclosed herein for geometrical image representation and/or compression. In one embodiment, the method comprises creating a representation for image data that includes determining a geometric flow for image data and performing an image processing operation on data in the representation using the geometric flow.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: August 16, 2011
    Assignee: NTT DoCoMo, Inc.
    Inventors: Onur G. Guleryuz, Arthur L. Cunha
  • Patent number: 8000387
    Abstract: In a communication system, Huffman coding techniques are used to obtain shaping gains for an improvement in data transmission rates. More particularly, a novel method of Huffman shaping is described that achieves a shaping gain of greater than 1 dB. The shaping gain results in a higher data rate transmission in a communication system where transmitted power is constrained.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 16, 2011
    Assignee: Broadcom Corporation
    Inventors: Gottfried Ungerboeck, Arthur J. Carlson
  • Publication number: 20110187923
    Abstract: A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 4, 2011
    Inventors: Jin Pil Kim, C. Gomer Thomas
  • Publication number: 20110176009
    Abstract: A client device, a control method thereof, and an image service system including the client service and the control method are disclosed. The client device includes an image capturing unit to capture an image, an encoding unit to encode the image captured by the image capturing unit into a JPEG format according to a group map that includes not only Frames Per Second (FPS) values required for types of a plurality of image services but also compression information for each frame image, and a client controller to determine not only the FPS satisfying the plurality of image services but also the compression information for each frame image, and control an operation of the encoding unit in such a manner that images captured by the image capturing unit are encoded according to the determined FPS and compression information.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 21, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Byung Kwon CHOI, Woo Sup Han, Tae Sin Ha
  • Publication number: 20110176054
    Abstract: The present invention is directed to enabling image display at a high resolution according to connection of an external device 13 including a display environment having a higher resolution than that of a display specification of a receiver 3 itself. An encoder 5 compresses a captured image output from a camera 4 in either one of a QVGA mode and a VGA mode. A decoder 9 expands the compressed image input via sending and receiving circuits 6 and 8, and generates a QVGA expanded image from the compressed image in the QVGA mode while generating a VGA expanded image from the compressed image in the VGA mode. A QVGA display unit 11a displays the QVGA expanded image. A USB interface 12 outputs the VGA expanded image outward. When the external device 13 is not connected, the captured image is compressed in the QVGA mode, so that the QVGA expanded image is displayed on the QVGA display unit 11a.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 21, 2011
    Applicant: TOMY COMPANY, LTD.
    Inventor: Takeshi Omae
  • Patent number: 7984477
    Abstract: There are provided a method, a system and machine-readable medium for encoding a video broadcast. The method includes obtaining one or more first compression settings for the video broadcast from an electronic program guide (EPG), the EPG associating the video broadcast with the one or more first compression settings. The method further includes compressing the video broadcast using the one or more first compression settings into a distribution broadcast. Yet further, the method includes distributing the distribution broadcast. There is also provided a method, system and machine readable medium to provide compression settings for encoding a video broadcast. The method includes inserting one or more compression settings into an electronic program guide (EPG) in association with the video broadcast based on a content type of the video broadcast. The method further includes distributing the EPG.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 19, 2011
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Dinesh Nadarajah, Brad A. Medford
  • Patent number: 7982796
    Abstract: A computer readable medium for compressing video data with an edit track is provided. Generally, computer readable code for compressing video data is provided. The computer readable code for compressing comprises computer readable code for accessing the edit track to use data in the edit track during the compressing the video data.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: July 19, 2011
    Assignee: Apple Inc.
    Inventor: Michael F. Culbert
  • Publication number: 20110157463
    Abstract: The present invention relates to a broadcasting receiver and a method for providing a background channel EPG and comprises a first tuner that selects a channel chosen by a user; a second tuner that receives channels other than the channel tuned with said first tuner; a data parser that collects data broadcast signals from among the broadcast signals of the channels received at said second tuner; an image processor that processes said collected data broadcast signals to convert these into image data; a storage part that stores said converted image data; and a display part that displays the broadcast program information for the channels that are received via said second tuner, wherein said stored image data has been inserted into a channel screen selected via said first tuner.
    Type: Application
    Filed: August 28, 2009
    Publication date: June 30, 2011
    Inventor: Su Hyun Shin
  • Patent number: 7965768
    Abstract: The present invention provides an image coding apparatus and an image coding program that execute quantization control so that a generating bit is made close to a target bit. The image coding apparatus according to the present invention includes a generated bit measurement unit, a target bit setting unit, a residual bit computing unit for computing a residual value between the generated bit and the target bit, a remaining video buffer capacity measurement unit, and a quantization parameter computing unit for computing a quantization parameter to set the same to the quantization unit. The quantization parameter computing unit computes a quantization parameter for next image data to be encoded on the basis of at least one of the residual value computed and the remaining video buffer capacity measured.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: June 21, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Hiroaki Ito, Tomokazu Murakami, Isao Karube, Masaru Takahashi, Daisuke Yoshida
  • Publication number: 20110141347
    Abstract: A method of processing a non-real time service of a broadcast receiver, which receives and processes a service being transmitted in non-real time, and a broadcast receiver are disclosed. Herein, the method of processing a non-real time service in a broadcast receiver includes receiving in non-real time first signaling information including access information of a content item and second signaling information including detail information of the content item, receiving in non-real time a file belonging to the content item by accessing to a FLUTE session transmitting the content item, wherein the file corresponds to a compressed file that has one or more files including an entry file compressed therein, and decompressing the compressed file and then executing the content item referring to information on the entry file.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Applicant: LG ELECTRONICS INC.
    Inventors: Jong Yeul SUH, Gomer Thomas, Jin Pil Kim
  • Publication number: 20110128437
    Abstract: Provided are an image signal processing apparatus and a controlling method thereof. The image signal processing apparatus includes a signal decoder, an image signal processor, a display, a controller, a memory, and a power interface. The signal decoder decodes input signals, and the image signal processor processes signals decoded by the signal decoder so that they are outputable. The display outputs the signals processed by the image signal processor, and the controller allows a list of modules recognized by the connector to be displayed, and controls driving of the module selected by a user. The memory stores a program transmitted from the selected module, and the power interface supplies power to the module.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 2, 2011
    Inventors: Sim Hong Lee, Min-Chul Kim, Myoung Hwa Ko, Hee Tae Yoo, Hong Ki Kim, Su-Zin Lee, Jae Hyun Park
  • Publication number: 20110128438
    Abstract: The first color gamut conversion unit 102 limits, in a visually natural manner, an output signal to a signal within a range of the DCI color gamut through well-known color gamut conversion processing when there is a color region exceeding the DCI color gamut, the output signal being obtained through the imaging by the imaging unit 101 and represented by the primaries (R, G, and B) determined by a color filter of an image sensor of the camera. It is to be noted that a color gamut conversion technique may be any technique which can limit a color gamut such as gamut conversion processing (Non Patent Literature: “Fundamentals of Color Reproduction Engineering”, Corona Publishing Co., Ltd., pp. 178-180).
    Type: Application
    Filed: August 26, 2009
    Publication date: June 2, 2011
    Inventors: Haruo Yamashita, Yasuhiro Kuwahara, Takeshi Ito
  • Publication number: 20110102670
    Abstract: The present invention provides an audio video recording device which can easily post video contents on a video-sharing website without editing the video data to be posted.
    Type: Application
    Filed: January 6, 2011
    Publication date: May 5, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Miho TANJI, Yoriko Yagi, Teruyuki Morita, Yasutaka Ogama
  • Publication number: 20110096225
    Abstract: A method and system for altering a presentation of broadcast content is disclosed. Embodiments provide an accurate and efficient mechanism for suppressing advertisements by using downloaded templates to identify advertisements before suppression for a duration indicated by information downloaded about the advertisement, where the suppression is effectuated by controlling a display or set-top box using remote-control functionality. In one embodiment, a digital signal comprising broadcast content is accessed. A plurality of templates are received and stored, wherein each template represents a known portion of the broadcast content. The digital signal is then compared against a portion of the plurality of stored templates. Upon a match, a control signal operable to alter a component of a presentation of the known portion of the broadcast content is generated.
    Type: Application
    Filed: December 21, 2010
    Publication date: April 28, 2011
    Applicants: SONY CORPORATION, SONY ELECTRONICS INC.
    Inventor: Brant L. Candelore
  • Patent number: 7929795
    Abstract: Introducing a further prediction stage, namely a prediction of the motion vectors or the prediction error of the first prediction stage, does indeed at first increase the encoding or compression effort and, correspondingly, also the decoding or decompression effort, but the prediction proposed here leads to a significant improvement of the compression gain in relation to the effort in most graphics model sequences due to the uniformity of the motion.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: April 19, 2011
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Matthias Kautzer, Karsten Mueller, Aljoscha Smolic, Thomas Wiegand
  • Publication number: 20110085077
    Abstract: A content reproduction device has a television broadcast reception function and an Internet connection function, and includes a detection unit and a reproduction-output switching unit. The detection unit detects, when a content of a television broadcast is output for reproduction, a content which is the same as the content of the television broadcast and has a resolution higher than a resolution of the content of the television broadcast from among contents available via an Internet. The reproduction-output switching unit switches a content of the output for reproduction from the content of the television broadcast to the content detected by the detection unit if the detection by the detection unit is successful.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 14, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Akihiko Yamashita
  • Publication number: 20110063409
    Abstract: There is disclosed methods and apparatuses for multi-view video transmission and reception. The method comprises receiving a first sequence of pictures from a first view; and receiving a second sequence of pictures from a second view. The first sequence of pictures and the second sequence of pictures are divided into a first period of pictures and a second period of pictures, wherein no picture in the second period of pictures precedes any picture in the first period of pictures in output order. At least a third sequence of pictures is obtained of at least one view between the first view and the second view covering the first period of pictures. Said at least the third sequence of pictures and a first set of pictures of the first sequence of pictures and the second sequence of pictures that belong to the second period of pictures are encoded.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 17, 2011
    Applicant: NOKIA CORPORATION
    Inventor: Miska Matias Hannuksela
  • Publication number: 20110019018
    Abstract: An image compression system in coordination with camera motion includes a camera for capturing motion pictures; a motion detection device structurally connected with the camera for detecting motions of the camera; an image compression electrically connected with the camera for compressing the motion pictures; and a motion vector receiver electrically connected with the motion diction device and the image compression device for receiving motion signals generated by the motions and then transmitting the motion signals to the image compression device, whereby the image compression device can refer to the motion signals for calculation while compressing the motion pictures. Accordingly, the image compression system can compress the images in coordination with the camera motion and meanwhile eliminate the minor vibrations in the images.
    Type: Application
    Filed: July 22, 2009
    Publication date: January 27, 2011
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: Shi-Wu Lo, Jiun-In Guo, Tzu-Chun Chang
  • Patent number: 7873224
    Abstract: In an image/video encoding and decoding system employing an artifact evaluator a method and/or apparatus to process video blocks comprising a decoder operable to synthesize an un-filtered reconstructed video block or frame and an artifact filter operable to receive the un-filtered reconstructed video block or frame, which generates a filtered reconstructed video block or frame. A memory buffer operable to store either the filtered reconstructed video block or frame or the un-filtered reconstructed video block or frame, and an artifact evaluator operable to update the memory buffer after evaluating and determining which of the filtered video block or frame, or the un-filtered video block or frame yields better image/video quality.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: January 18, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Suhail Jalil, Khaled Helmi El-Maleh, Chienchung Chang
  • Patent number: 7855751
    Abstract: As shown in FIG. 7, a data receiver receives video data and audio data together with a frequency division parameter N that depends on the pixel clock of the video data and the sampling frequency of the audio data, and a count value CTS that is obtained by counting the period of the audio clock that has been subjected to frequency division by the frequency division parameter N, with the pixel clock, which are transmitted from a data transmitter, and subjects the pixel clock to frequency division by the count value CTS, phase-control the divided clock (s501) in accordance with a phase comparison clock (s505) that is obtained by dividing an audio clock (s403) oscillated from a VCO (504) by the frequency division parameter N, thereby generating an audio clock (s403). Accordingly, the data transmitter and the data receiver can satisfactorily implement multiplexing of audio data and video data, and transmission of the multiplexed data using an existing DVI cable, with a simple structure.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: December 21, 2010
    Assignee: Panasonic Corporation
    Inventor: Naoki Ejima
  • Patent number: 7853088
    Abstract: An input video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. Decoded is a given signal coded at a lower coding layer lower than a specific coding layer among the plurality of coding layers to generate a decoded signal of the lower coding layer. Spatial interpolation is applied to the decoded signal of the lower coding layer to generate an upscaled decoded video signal. The spatial interpolation is an upscaling procedure to upscale the decoded signal of the lower coding layer into a spatial resolution of the specific coding layer. A spatial high-frequency components estimation and scale up procedure is applied to the decoded signal of the lower coding layer to generate a high-frequency components signal. The upscaled decoded video signal and the high-frequency components signal are subtracted from the input video signal exhibiting a spatial resolution of the specific coding layer to produce a predictive-error signal.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: December 14, 2010
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Satoru Sakazume, Kazuhiro Shimauchi, Toru Kumakura, Motoharu Ueda
  • Publication number: 20100289904
    Abstract: Systems are disclosed that provide improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions. A high-resolution image sensor is used to convert light images into a high-resolution video data stream. A down sampler converts the high-resolution video data stream to a low-resolution video data stream, so that both a low-resolution data stream and a high-resolution data stream are available. While the low resolution-data stream can be sent to the computing device, a digital signal processor (DSP) processes the high-resolution video data stream in accordance with an input control signal that is comprised of desired high-resolution video stream parameters derived from the low-resolution video data stream.
    Type: Application
    Filed: May 15, 2009
    Publication date: November 18, 2010
    Applicant: Microsoft Corporation
    Inventors: Cha Zhang, Zhengyou Zhang, Zicheng Liu, Wanghong Yuan, Christian Huitema
  • Publication number: 20100275240
    Abstract: A television signal receiver is provided that includes: a television tuner module, a compression unit, and a transmission unit. Therein the television tuner module is for outputting a television data stream to the compression unit; the compression unit is for compressing the television data stream then outputting a compressed television data stream; next the transmission unit outputs the compressed television data stream; wherein the compression technique used by the compression unit is by compressing and converting each image within the television data stream into a dynamic image for sequential output.
    Type: Application
    Filed: April 28, 2009
    Publication date: October 28, 2010
    Inventor: Patrick Lin
  • Publication number: 20100238347
    Abstract: A video compression system is disclosed that is optimized to take advantage of the types of redundancies typically occurring on computer screens and the types of video loss acceptable to real time interactive computer users. It automatically adapts to a wide variety of changing network bandwidth conditions and can accommodate any video resolution and an unlimited number of colors. The disclosed video compression encoder can be implemented with either hardware or software and it compresses the source video into a series of data packets that are a fixed length of 8 bits or more. Sequences of one or more of these packets create unique encoding “commands” that can be sent over any network and easily decoded (decompressed) with either software or hardware. The commands include 3 dimensional copying (horizontal, vertical and time) and unique efficiencies for screen segments that are comprised of only two colors (such as text).
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Inventor: William A. Dambrackas
  • Publication number: 20100226435
    Abstract: A technique for frame rate conversion that utilizes motion estimation and motion compensated temporal interpolation includes obtaining a first image and a second image, where the first and second images correspond to different instances in time, compressing the second image using multiple motion vectors that result from motion estimation between the first image and the second image to generate a compressed image, and generating an interpolated image using the compressed image.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 9, 2010
    Applicant: NXP B.V.
    Inventors: Abraham Karel Riemens, Onno Eerenberg, Thijs Thomas Withaar, Timo Van Roermund
  • Patent number: 7792372
    Abstract: A method and apparatus are provided for encoding/decoding an image based on a region of interest (ROI). The method and apparatus provide error-resilience by duplicating ROI data in a variable manner according to image features or by reducing non-ROI data. The ROI based image encoding apparatus and method estimate a complexity for each block located in the ROI of an image, transform the image by creating more duplicate blocks for ROI blocks having high complexity and fewer duplicate blocks for ROI blocks having low complexity, and encode the transformed image.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kwang-yuel Ryu
  • Patent number: 7769237
    Abstract: The present invention leverages a lossless pixel palettization scheme to locally compress portions of at least a two-dimensional image. This provides a lossless compression means with a compression ratio comparable with lossy compression means, allowing for efficient data transfers without loss of image information. By utilizing locally-adaptive palettization, two-dimensional pixel information can be exploited to increase compression performance. In one instance of the present invention, a locally-adaptive, lossless palettization scheme is utilized in conjunction with a one-dimensional compression scheme to yield a further increase in compression ratio. This allows for the exploitation of two-dimensional data information along with the further compression of information reduced to one dimension.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: August 3, 2010
    Assignee: Microsoft Corporation
    Inventor: Andrew Kadatch
  • Patent number: 7761055
    Abstract: An antenna (8), mounted to a roof (3) of a building (1), receives digital broadcast transmissions and feeds a signal through a cable (9) to a desk stand (2). The desk stand has an amplifier and a loop antenna. A mobile telephone handset (6) capable of receiving digital broadcast transmissions also includes a loop antenna. Using inductive coupling, the signal is transmitted from the desk stand to the mobile telephone handset.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: July 20, 2010
    Assignee: Nokia Corporation
    Inventors: Kimmo Laiho, Mauri Mäkivuoti
  • Patent number: 7752052
    Abstract: A down-sampler 101 down-samples the sampling rate of an input signal from sampling rate FH to sampling rate FL. A base layer coder 102 encodes the sampling rate FL acoustic signal. A local decoder 103 decodes coding information output from base layer coder 102. An up-sampler 104 raises the sampling rate of the decoded signal to FH. A subtracter 106 subtracts the decoded signal from the sampling rate FH acoustic signal. An enhancement layer coder 107 encodes the signal output from subtracter 106 using a decoding result parameter output from local decoder 103.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: July 6, 2010
    Assignee: Panasonic Corporation
    Inventor: Masahiro Oshikiri
  • Patent number: 7742645
    Abstract: The encoding device of the present invention comprises a type determination unit inputs each bit of the weblet co-efficient in a depth direction in parallel and determines type information indicating which the bit is, the first “1” bit when viewed from an MSB side, a bit located further on the MSB side than the first “1” bit, a bit located further on an LSB side than the first “1” bit, a buffer unit for buffering the determined type information of each bit for each bit depth and a pass determination unit for determining pass information of a type information to process, of a plurality of pieces of type information, based on the plurality of pieces of buffered type information of the same depth.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: June 22, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventor: Sou Nakamura
  • Patent number: 7742646
    Abstract: Systems and methods for representing high dynamic range data in compressed formats with a fixed size block allow high dynamic range data to be stored in less memory. The compressed formats use 8 bits per pixel. A first compressed format includes two endpoint values and an index for each pixel in the block. A second compressed format includes four endpoint values, a partition index that specifies a mask for each pair of the four endpoint values, and an index for each pixel in the block. The two formats may be used for various blocks within a single compressed image and mode bits are included to distinguish between the two formats. Furthermore, each endpoint value may be encoded using an endpoint compression mode that is also specified by the mode bits. Compressed high dynamic range values represented in either format may be efficiently decompressed in hardware.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 22, 2010
    Assignee: NVIDIA Corporation
    Inventor: Walter E. Donovan
  • Publication number: 20100110285
    Abstract: A display system includes: an image data output device which outputs image data; an image display device which displays an image corresponding to the image data; and a control device which controls the image data output device; wherein one of the control device and the image data output device has a compression rate setting unit which determines whether the image corresponding to the image data is a natural image or not and sets a compression rate for the image in accordance with a type of the image; and the image data output device has an image data output unit which outputs a compressed image data acquired by compressing the image data at the compression rate set by the compression rate setting unit.
    Type: Application
    Filed: October 2, 2009
    Publication date: May 6, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuhiko NOBORI
  • Patent number: 7697606
    Abstract: In a communication system, Huffman coding techniques are used to obtain shaping gains for an improvement in data transmission rates. More particularly, a novel method of Huffman shaping is described that achieves a shaping gain of greater than 1 dB. The shaping gain results in a higher data rate transmission in a communication system where transmitted power is constrained.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: April 13, 2010
    Assignee: Broadcom Corporation
    Inventors: Gottfried Ungerboeck, Arthur J. Carlson
  • Patent number: 7676098
    Abstract: To reduce the amount of data transferred from an electronic apparatus to other electronic apparatus, a first compression unit compresses image data in units of m bits with a predetermined pattern to produce first compression data. A second compression unit compresses the first compression data in units of k bits to produce second compression data. And, an output unit outputs the second compression data according to a production order of the second compression data produced from the second compression unit.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 9, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Nakayama
  • Patent number: 7649994
    Abstract: A method of decoding symbols in which a first codeword has been spread by a second codeword to recover first information and second information is provided. The decoding occurs jointly, with an overall output determining both the first and second information. A first parallel code multiplying operation for each codeword of the second code is followed by a second parallel code multiplying operation for the first code. An overall maximum output of the second parallel code multiplying operations determines the output information.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: January 19, 2010
    Assignee: Nortel Networks Limited
    Inventors: Abdelgader Legnain, Xixian Chen