Time Division Multiplexing Of Luminance And Chrominance (e.g., Mac) Patents (Class 348/489)
  • Patent number: 9723308
    Abstract: An image processing apparatus capable of reducing a capacity of a storage element includes: a first variable-length decoding unit that sequentially outputs, for each first unit of processing, one or more components included in the first unit of processing, by performing a first process on a coded stream; a reordering unit that sequentially outputs, for each second unit of processing different from the first unit of processing, one or more components included in the second unit of processing, by reordering the components outputted from the first variable-length decoding unit; and a second inverse quantization unit that performs a second process on the components outputted from the reordering unit, for each second unit of processing.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: August 1, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenji Oga, Hiroshi Amano, Takeshi Tanaka
  • Patent number: 8866968
    Abstract: Provided is a video processing device capable of displaying an easily viewable video utilizing a broader area in a display. A video processing unit that is included in the video processing device and processes an input video includes a first memory that stores the input video, a second memory that stores the input video, a compression/expansion control unit that compresses and/or expands a first area of the input video stored in the first memory and compresses and/or expands a second area of the input video stored in the second memory, and an image composing unit that generates an output video in which a video of the first area compressed and/or expanded by the compression/expansion control unit and a video of the second area compressed and/or expanded by the compression/expansion control unit are horizontally aligned.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: October 21, 2014
    Assignee: Panasonic Corporation
    Inventor: Takashi Kuwabara
  • Patent number: 8850714
    Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 8830398
    Abstract: It is determined whether or not an input image is an image converted from an image with a relatively low resolution based on one frame of an image. A resolution determination device includes: an edge strength calculator configured to obtain an edge strength of a pixel included in an input image based on luminance of the pixel and luminance of a pixel adjacent to the pixel, for each of a plurality of pixels included in the input image; and a resolution determiner configured to determine whether or not the input image is an image upconverted from an image with a predetermined resolution or less, based on distribution of the edge strengths.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Panasonic Corporation
    Inventors: Koichi Inoue, Shinichi Tomioka, Atsuhisa Kageyama
  • Patent number: 8823562
    Abstract: A first multiplexer, at each given cycle, outputs a second input data signal, after outputting a first input data signal. A second multiplexer, at each given cycle, outputs a fourth input data signal, after outputting a third input data signal. The second multiplexer outputs the third input data signal at a timing that coincides with the timing at which the second input data signal is output from the first multiplexer. At each given cycle, a third multiplexer, after outputting the first input data signal and the second input data signal output from the first multiplexer, outputs the third input data signal and the fourth input data signal output from the second multiplexer.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: September 2, 2014
    Assignee: Fujitsu Limited
    Inventor: Shigeto Suzuki
  • Patent number: 8570435
    Abstract: A video processing method and a device thereof are described. The method includes the steps as follows. An input video signal is received, in which a single period of the input video signal has a plurality of first input frames and a plurality of second input frames. The input video signal is processed, so as to generate an output video signal, in which a single period of the output video signal has a plurality of first output frames and a plurality of second output frames, and an amount of the first output frames is the same as an amount of the second output frames. A sum of the amount of the first output frames and the amount of second output frames is an integer multiple of a sum of an amount of the first input frames and an amount of the second input frames.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Jin-Sheng Gong, Hsieh Chun-Hsing
  • Patent number: 8564642
    Abstract: A communication method of transmitting video data which may include a predetermined number of bits as a unit from a source device to a sink device in sync with pixel clock and using individual transmission lines for respective color data or the like, may include preparing video data for three-dimensional display including the video data for a left eye and the video data for a right eye; forming the data for the left eye and for the right eye including the predetermined number of bits per pixel respectively; adding one of the data for the left eye and data for the right eye to the other thereof per pixel; forming the data of one pixel including twice the predetermined number of bits and transmitting the data at a timing in sync with the pixel clock; and transmitting the data for three-dimensional display from the source device to the sink device.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: October 22, 2013
    Assignee: Sony Corporation
    Inventor: Kazuyoshi Suzuki
  • Patent number: 8223162
    Abstract: An image processing apparatus, an image processing method, and a program thereof, and a display device are provided, in which reproduction of a secret image from one dispersed image is difficult. A secret image and a reverse image included in at least two types of images are in a relationship of forming image data of an image not correlated with the secret image when luminance values of image data respectively are added pixel by pixel.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: July 17, 2012
    Assignee: NEC Corporation
    Inventors: Daigo Miyasaka, Masao Imai, Fujio Okumura
  • Patent number: 7860180
    Abstract: The invention enables the transmission of continuous complex numbers using a symbol based transmission scheme such as OFDM. Accordingly, complex numbers are mapped to the constellation map, enabling a fine granularity of constellation points. This scheme may be used, for example, in the transmission of video where the coefficients representing the higher frequency of each of the video components, as well as the quantization error values of the DC and near DC components, or some, possibly non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a symbol.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: December 28, 2010
    Assignee: Amimon Ltd
    Inventors: Zvi Reznic, Nathan Elnathan, Meir Feder, Shay Freundlich
  • Publication number: 20100165195
    Abstract: A method for multiplexing measurements of related values using predetermined numbers of sources having intensities and subject to noise, and at least one sensor subject to saturation, said multiplexing comprising measuring each of said related values under a plurality of different combinations of said sources, the method comprises: generating a first set of multiplexing combinations; constraining said first set with respect to said saturation; modifying said first set with respect to said noise until an optimum is found between respective intensities and noise, and measuring said variables by multiplexing said sources according to said modified set.
    Type: Application
    Filed: March 13, 2008
    Publication date: July 1, 2010
    Applicant: Technion Research & Development Foundation Ltd.
    Inventors: Netanel Ratner, Yoav Yosef Schechner
  • Patent number: 6680852
    Abstract: A method of color-coding a blade and a bladed system is disclosed. The bladed system has a plurality of slots. In particular, the method facilitates selecting at least one slot for inserting therein the blade. One of a plurality of core colors is associated with each slot of the bladed system, whereas each core color indicates which type of blade can be inserted in the corresponding slot. One of the core colors is associated with the blade. In the bladed system, a slot which has an associated core color which matches the core color of the blade is selected. The blade is inserted in the selected slot.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: January 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Michael Wortman
  • Patent number: 6611215
    Abstract: A method comprising identifying a sample rate of received audio content, receiving a conversion sample rate, and converting the received audio content to the received conversion sample rate. Wherein the conversion comprises utilizing a repeating sequence of packets where all but one of the packets of each sequence are truncated to a whole number of samples, while the remaining packet is rounded up to the next whole number of samples if the conversion fails to resolve packet size to a whole number.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: August 26, 2003
    Assignee: Microsoft Corporation
    Inventors: Daniel J. Miller, Eric H. Rudolph
  • Patent number: 6429900
    Abstract: A method of transmission of wide bandwidth chroma signals converts a component video signal having a luminance and two half-bandwidth chroma components into a 0:4:4 video signal having no luminance component and two wide bandwidth chroma components. Half of the wide bandwidth chroma component samples are inserted into a standard serial digital data stream in place of the luminance component, and the second half of the wide bandwidth chroma component samples are inserted into the standard serial digital data stream in place of the two half-bandwidth chroma components.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 6, 2002
    Assignee: Grass Valley (U.S.) Inc.
    Inventors: Neil R. Olmstead, Bret Jones
  • Patent number: 5838394
    Abstract: A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color picture data having a non-interlaced data format with the sampling rate of the luminance signals and two-route color signals of 4:2:0 into a data string of even-numbered pixels and a data string of odd-numbered pixels, separating the two-route color signals of the color picture data into a data string of the former half pixels and a data string of the latter half pixels, and distributing and re-arraying the separated data, a storage unit having a storage capacity of at least one frame and adapted for storing data in a data re-arraying sequence by the input converting unit, a display data converting unit for converting the data stored in the storage unit into picture-displaying data, and a controller for controlling the input converting unit into synchronization with data writing in the storage unit.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: November 17, 1998
    Assignee: Sony Corporation
    Inventors: Masato Kajimoto, Hirofumi Murase
  • Patent number: 5654773
    Abstract: A picture storage device conveniently employed in conjunction with an electronic still camera or a video camera has an input data converting unit for separating luminance signals of input color picture data having a non-interlaced data format with the sampling rate of the luminance signals and two-route color signals of 4:2:0 into a data string of even-numbered pixels and a data string of odd-numbered pixels, separating the two-route color signals of the color picture data into a data string of the former half pixels and a data string of the latter half pixels, and distributing and re-arraying the separated data, a storage unit having a storage capacity of at least one frame and adapted for storing data in a data re-arraying sequence by the input converting unit, a display data converting unit for converting the data stored in the storage unit into picture-displaying data, and a controller for controlling the input converting unit into synchronization with data writing in the storage unit.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Sony Corporation
    Inventors: Masato Kajimoto, Hirofumi Murase
  • Patent number: 5583574
    Abstract: A video data transmitter includes: chrominance-data multiplexer which multiplexes parallel data obtained by digitizing a chrominance signal Pb, which is a component signal of an analog HDTV video signal, with parallel data obtained by digitizing a chrominance signal Pr; a word multiplexer which multiplexes parallel data obtained by digitizing a luminance signal Y, which is a component signal of analog HDTV video signal, with the output data of the chrominance-data multiplexer, and a parallel-to-serial converter which converts the parallel data output from the word multiplexer. A video data receiver includes a serial-to-parallel converter which converts received serial data into parallel data and a word separator which separates the output data of the serial-to-parallel converter into parallel data in the Y channel and parallel data in the Pb/Pr channel.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masatoshi Tanaka, Kenshi Taniguchi, Tomotaka Takeuchi
  • Patent number: 5557426
    Abstract: An image information signal processing apparatus for processing a first image information signal having at least a first image signal and a second image signal which is different from the first image signal, and a second image information signal having a third image signal with a frequency band wider than that of the first image signal or the second image signal. When the first image information signal is input, the apparatus forms first image data corresponding to the first image signal and second image data corresponding to the second image signal by performing sampling of the first image information signal in accordance with a first sampling signal having a first sampling frequency. When the second image information signal is input, the apparatus forms third image data corresponding to the third image signal by performing sampling of the second image information signal in accordance with a second sampling signal whose frequency is higher than that of the first sampling signal.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: September 17, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuguhide Sakata
  • Patent number: 5523795
    Abstract: A method and an apparatus capable of transmitting and receiving multiplexed signals as serial data in such a manner that, even in a state where a continuous signal such as an audio digital signal is not in synchronism with another signal such as a video digital signal, the continuous signal can be properly reproduced on a reception side. Address data based on a word clock of another digital signal is sampled on a transmission side in accordance with a sampling clock of the continuous signal, and the sampled address value is included in the multiplexed signals to be thereby transmitted together to the reception side.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: June 4, 1996
    Assignee: Sony Corporation
    Inventor: Mamoru Ueda
  • Patent number: 5465158
    Abstract: In a video tape recorder of the color under recording type, in which a low frequency band converted carrier chrominance signal is recorded together with an FM luminance signal, another FM modulator is provided for modulating a wide band chrominance signal. An additional head records the FM chrominance signal on at least a part of a track on which video signal has been recorded in the color under recording. In reproduction, it is checked whether the FM chrominance signal is reproduced or not for selecting the FM chrominance signal or the color under recorded carrier chrominance signal as a reproduced chrominance signal output.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: November 7, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshihiro Morioka, Masaaki Kobayashi, Mutsuyuki Okayama, Etsuto Nakatsu, Kohei Suzuki
  • Patent number: 5459519
    Abstract: A video image decoder architecture for implementing a processing algorithm in the 40-ms mode on high-resolution TV sets, of a kind adapted to handle TV signals being received on respective transmission channels (J,L), which comprises a video signal demultiplexer receiving the transmission channels (J,L); and respective processing blocks for separately handling the signals from each of the channels (J,L). Each processing block includes a video image format converter, a local memory connected to an output of the converter, and at least one median filter and one systolic filter cascade connected after the memory for restoring, by interpolation, signal samples related to successive lines of the video image. A summing node adds the outputs from each processing block so as to obtain a time mean between restored samples of the channels (J,L).
    Type: Grant
    Filed: May 11, 1994
    Date of Patent: October 17, 1995
    Assignee: SCS Thompson Microelectronics, S.r.l.
    Inventors: Fabio Scalise, Rinaldo Poluzzi
  • Patent number: 5396293
    Abstract: An arrangement for enhancing an image corresponding to a television signal including a digital component includes a variable bandwidth filter and a control unit for controlling the bandwidth of the filter in response to the bit error rate (BER) of the digital component of the television signal. The control unit increases the bandwidth as the BER and therefore the signal quality increases and decreases the bandwidth as the BER and therefore the signal quality decreases. In one embodiment, the control unit is responsive to both the BER and the "darkness" of the image represented by the television signal so as to restrict the bandwidth more for relatively dark areas than for relatively light areas.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: March 7, 1995
    Assignee: Deutsche Thomson-Brandt GmbH
    Inventor: Christopher J. Shellard
  • Patent number: 5351090
    Abstract: When transmitting an audio signal by multiplexing in a synchronous period of a video signal, a buffer memory for time axis adjustment of the audio signal is controlled. The number of audio signal samples in the buffer memory is detected in every n fields (n being a positive integer) of video signal, and when it is different from a specific value, the read or write address of the buffer memory is preset, so that the number of audio signal samples in the buffer memory is kept constant at the moment of inspection in every n fields. Besides, by inspecting the number of audio signal samples in the buffer memory in one field or more, a line providing a maximum or minimum value of the number of samples is stored, and thereafter the number of audio signal samples in the buffer memory in that line is kept constant, so that the buffer memory capacity may be utilized effectively.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: September 27, 1994
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventor: Kazuhiko Nakamura
  • Patent number: 5347315
    Abstract: A X-MAC encoder enables a plurality of components to be encoded, each having a sequence of packets, with the packets being distributed in successive bursts each occupying a predetermined fraction of a television frame line. It comprises a plurality of blocks each having at least one packet encoder provided with a buffer memory for storing digital data coming from a source, and an encoder for distributing the packets in bursts of adjustable duration not greater than the duration of one television line. A base encoder assembly contains a programmable device for allocating a determined window of the television frame to each block. It calls a burst of length corresponding to the width within the window that is allocated by the programmable device, on the basis of the respective block burst encoder, at the beginning of each window in a line.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: September 13, 1994
    Assignee: Matra Communication
    Inventors: Jean Mary, Jean-Michel Masson
  • Patent number: 5327227
    Abstract: A de-interleaving system includes a generator for generating a write address for storing input audio data of a D2 MAC signal in units of packets, a generator for generating a read address for de-interleaving the stored audio data of the D2 MAC signal in units of packets so that the audio data is arranged in the sequence of pre-interleaving, a plurality of RAMs for storing the audio data of the D2 MAC signal according to the write address applied from the write address generator and for reading the stored audio data according to the read address applied from the read address generator, and several selectors for receiving the write address and read address from the write address generator and read address generator so as to apply the addresses to corresponding RAMs in units of packets of audio data. The system can enhance the error correction capability by receiving D2 MAC signals interleaved in units of packets and de-interleaving audio data in a normal sequence.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: July 5, 1994
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hong S. Han