Demodulator Patents (Class 348/726)
  • Patent number: 10264163
    Abstract: A display apparatus is provided. The display apparatus includes a tuner configured to receive a broadcast signal including a plurality of frames by tuning a channel, a display configured to display the received broadcast signal, an interface comprising interface circuitry configured to receive a channel change command, communication circuitry configured to receive timing information of the reference frame of the broadcast signal provided through a channel tuned according to the channel change command from an external apparatus, and a processor configured to, in response to the channel change command being received, predict timing for receiving the reference frame through the tuner based on the timing information of the reference frame received through the communication circuitry, to determine timing for performing channel tuning according to the channel change command based on the predicted timing, and to delay the channel tuning until the determined timing.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Gun-young Bae
  • Patent number: 10230551
    Abstract: A signal processing device for a receiver includes: a descrambler, descrambling an input signal to generate a descrambled signal; a phase recovery circuit, performing phase recovery according to the descrambled signal to generate a phase recovered signal; an equalization module, performing equalization according to the phase recovered signal to generate an equalized signal; and a decoder, decoding the equalized signal to obtain data included in the input signal.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 12, 2019
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Ting-Nan Cho, Chia-Wei Chen, Kai-Wen Cheng, Tai-Lai Tung
  • Patent number: 10225828
    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating control information in a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). For example, an apparatus may include logic and circuitry configured to cause a wireless station to generate a PPDU comprising a header field, a payload after the header field, and a control trailer after the payload, the control trailer comprising control information, the header field indicating presence of the control trailer; and to transmit the PPDU over a directional wireless communication band.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: March 5, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Assaf Kasher, Carlos Cordeiro, Solomon B. Trainin
  • Patent number: 10122403
    Abstract: A wireless multi-band device comprises a radiating system comprising a ground plane layer, a boosting element, and a radiofrequency system, wherein the radiofrequency system comprises a tunable reactive element.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: November 6, 2018
    Assignee: Fractus Antennas, S.L.
    Inventors: Jaume Anguera Pros, Aurora Andujar Linares
  • Patent number: 10090869
    Abstract: A signal receiving apparatus includes a signal processing circuit, an adjacent-channel interference (ACI) filter and an ACI detecting circuit. The signal processing circuit performs a signal processing process on an input signal to generate a processed signal. The ACI filter filters out ACI from the processed signal to generate a filtered signal. The ACI detecting circuit detects an energy difference between the processed signal and the filtered signal, and provides the energy difference to the signal processing circuit as a reference for adjusting the signal processing process.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 2, 2018
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Chih-Cheng Kuo, Tai-Lai Tung
  • Patent number: 9900576
    Abstract: A device for coding three-dimensional video data includes a video coder configured to determine a first block of a first texture view is to be coded using a block-based view synthesis mode; locate, in a depth view, a first depth block that corresponds to the first block of the first texture view; determine depth values of two or more corner positions of the first depth block; based on the depth values, derive a disparity vector for the first block; using the disparity vector, locate a first block of a second texture view; and, inter-predict the first block of the first texture view using the first block of the second texture view.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: February 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Vijayaraghavan Thirumalai, Li Zhang, Ying Chen, Marta Karczewicz
  • Patent number: 9893417
    Abstract: A satellite communications terminal for a ship may include an antenna with three antenna feeds operable at respective different frequencies, and communications circuitry coupled to the three antenna feeds and being configurable for a selected antenna feed. The terminal also includes a positioner to mount the antenna to the ship and point the antenna. A controller may select an antenna feed, configure the communications circuitry, and operate the positioner to point the antenna to a selected satellite all based upon the location of the ship and at least one selection rule. The selection rule may be a communications circuitry configuration rule and/or a service level agreement rule.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 13, 2018
    Assignee: SPEEDCAST INTERNATIONAL LIMITED
    Inventors: Roy J. Paleta, Jr., Duncan McCoig, Colin Strachan, Andrew Lucas, Stuart Alexander Cossar, William Robertson Dunbar
  • Patent number: 9479827
    Abstract: Methods, systems, and computer readable media can be operable to distinguish between data signals and video signals based upon interleaver depths associated with the signals. A CPE device can identify an interleaver depth associated with a signal and can make the determination that the signal is a video signal when the interleaver depth is outside of a predetermined range, the predetermined range being based on interleaver depths that are expected for a data signal.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: October 25, 2016
    Assignee: ARRIS Enterprises, Inc.
    Inventor: Derek Alan Winters
  • Patent number: 9456171
    Abstract: The present invention provides a TV demodulator, which includes a TV digital-to-analog converter (TV DAC) and a calibration circuit. The TV DAC includes: a master control switch controlled by a calibration signal to generate a master current; a current distribution circuit distributing the master current to generate an analog output signal at an output terminal; a first switch electrically connected between the current distribution circuit and a first resistor; and a second switch electrically connected between the current distribution circuit and a second resistor. The calibration circuit generates the calibration signal according to the analog output signal, to feedback control the master current.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 27, 2016
    Assignee: PIXART IMAGING INCORPORATION
    Inventor: Chia-Ming Wu
  • Patent number: 9351335
    Abstract: The invention concerns a method and a Femto base station for transmitting broadcast services from a radiocommunication cellular network (10) to a mobile terminal (2), said mobile terminal (2) being adapted to receive said broadcast services either, in a first general mode, directly from one global base station (1) among a plurality of global base stations belonging to said radiocommunication cellular network (10), or, in a second specific mode, through a Femto base station (3). According to the invention, said method comprises the step of receiving (S30) at said Femto base station (3) services which are broadcast by the global base station (1) in the coverage of which said Femto base station (3) is located and the step of relaying (S32) the received services from said Femto base station (3) so that said mobile terminal (2) can receive the relayed services when it is in the second specific mode.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: May 24, 2016
    Assignee: Alcatel Lucent
    Inventors: Alberto Conte, Brice Leclerc
  • Patent number: 9258517
    Abstract: Methods and apparatuses for adaptively filtering video content are disclosed herein. An apparatus may include a filter configured to receive a video signal. The filter may further be configured to perform an up-conversion on a plurality of frames of the video signal to provide a plurality of up-converted frames. The filter may further be configured to filter the plurality of up-converted frames to provide a plurality of filtered frames and to perform a down-conversion operation on the plurality of filtered frames to provide a filtered video signal.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: February 9, 2016
    Assignee: Magnum Semiconductor, Inc.
    Inventors: Alexandros Tourapis, Lowell Leroy Winger, Michael Willis Milne, Jr., Daniel Joseph Bell
  • Patent number: 9258509
    Abstract: A broadcast receiving apparatus includes a receiving unit which receives a broadcast signal, a graphic user interface (GUI) generating unit which generates a GUI, a signal processing unit which generates a video frame to which the GUI is added, a display unit which displays the video frame to which the GUI is added, a communication unit which establishes a communication connection with a user terminal device that executes a smart view function, and a control unit which controls the broadcast receiving apparatus to perform a corresponding operation according to a touch coordinate value transmitted from the user terminal device. Thus, the broadcast receiving apparatus can be controlled in various forms through the user terminal device.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hyo-dae Kim
  • Patent number: 9209910
    Abstract: Techniques for improving rejection of out-of-band interference in a noise-cancelling receive architecture. In an aspect, capacitors blocking in-band signals and passing through out-of-band signals destructively couple an auxiliary mixer output to a mixer output. In a further aspect, cross-coupling capacitors are provided to couple a first signal path with a second signal path of the noise-cancelling receive signal path. Baseband poly phase cross-coupling blocker filtering is further provided for out-of-band interference cancellation to create notch responses at blocker offset frequencies. The techniques disclosed may readily be adapted for multi-phase local oscillator systems.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 8, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Hajir Hedayati, Wing Fat Andy Lau, Jeremy Darren Dunworth
  • Patent number: 9160576
    Abstract: Methods, systems, and computer readable media can be operable to conditionally use feedback equalization during equalization of a signal. In embodiments, a feedback component of a receiver can be turned off during initial ranging and periodic maintenance intervals, and resulting pre-equalization coefficients can be used to pre-distort subsequent data signals at a transmitter.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: October 13, 2015
    Assignee: ARRIS Enterprises, Inc.
    Inventor: Ayham Al-Banna
  • Patent number: 9031176
    Abstract: Repeatedly: pre-processing a received signal using feedback to obtain a pre-processed signal, the feedback being based on a previous signal, the previous signal being received prior to the received signal; evaluating at least one of a quality of a demodulated signal and a quality of a decoded signal, the demodulated signal being obtained from the pre-processed signal by demodulating, the decoded signal being obtained by decoding the demodulated signal; deciding if the respective at least one of the quality of the demodulated signal and the quality of the decoded signal is sufficient; selecting neither or one of the demodulated signal and the decoded signal as a selected signal based on the at least one of the quality of the demodulated signal and the quality of the decoded signal for which it is decided whether or not the quality is sufficient; and updating the feedback based on the selected signal.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: May 12, 2015
    Assignee: Broadcom Corporation
    Inventors: Hannu Mikael Vesala, Janne Ari Olavi Aula
  • Patent number: 9032449
    Abstract: The present invention concerns a method and associated apparatus for reducing the time required to scan an incoming satellite transmission power spectrum for available signals and to determine the characteristics of those signals. The frequency range of interest is scanned in narrow slices to determine approximate input power within each slice. Center frequencies and symbol rates of individual transponders are then estimated based upon these input power approximations.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 12, 2015
    Assignee: Thomson Licensing
    Inventor: Brian David Bajgrowicz
  • Publication number: 20150124173
    Abstract: A method and apparatus for providing additional information included in a video displayed on a display device using visible light communication (VLC). A data packet including video data and additional information for an object included in the video data is received. The video data is extracted from the data packet, and the video data is decoded. The additional information from the data packet is extracted, and the additional information decoded. The decoded video data is output through the display device, and at the same time, the additional information is transmitted for a particular object included in a video based on a VLC protocol using a light emitting device prepared in the display device. The additional information providing apparatus includes an image sensor module, a display module, a visible light receiving module, an additional information manager and a controller.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 7, 2015
    Inventors: Jong-Hoon ANN, Eun-Tae WON, Jae-Seung SON
  • Patent number: 9025085
    Abstract: Methods and apparatus for providing access to program channels, e.g., high definition programs and program channels which corresponding to a standard definition program and/or program channels are described. In accordance with the invention, a high definition auto tune function is supported. When enabled, in one exemplary embodiment, if a user selects a standard program definition channel, a check is automatically made to determine if a corresponding high definition program channel is available. The corresponding high definition program channel is a channel which provides the same program as on the selected standard definition channel but in high definition. When the auto tune function is enabled and a corresponding high definition channel is available, the device, e.g., set to box or tuner implementing the auto tune feature of the present invention, automatically tunes to the high definition channel instead of the standard definition channel.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: May 5, 2015
    Assignee: Time Warner Cable Enterprises LLC
    Inventor: Hugh Josephs
  • Publication number: 20150116599
    Abstract: There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles, and demodulates only a signal having a profile first received or only a signal having a predetermined profile, of the received signals.
    Type: Application
    Filed: May 22, 2013
    Publication date: April 30, 2015
    Inventors: Naoki Yoshimochi, Takashi Yokokawa, Kenichi Kobayashi
  • Publication number: 20150092112
    Abstract: There is provided a reception device which receives signals compliant with a DVB-T2 standard which possibly includes a plurality of different profiles and demodulates a signal having a predetermined profile, of the received signals, and demodulates a signal having a different profile when it is clear that the signal having the different profile is included.
    Type: Application
    Filed: May 23, 2013
    Publication date: April 2, 2015
    Inventors: Takashi Yokokawa, Naoki Yoshimochi, Kenichi Kobayashi
  • Publication number: 20150085195
    Abstract: Systems and methods are disclosed for MCM (multiple chip module) packages having multiple stacked demodulator dies that share one or more MCM pins. The shared pins can include clock generation pins, clock input/output pins, receive signal path input pins, voltage supply pins, ground supply pins, and/or any other desired pins. In addition to reducing footprint sizes for printed circuit board (PCB) applications, the multi-demodulator MCM package embodiments described herein also allow for improved routing of connection traces on PCBs.
    Type: Application
    Filed: August 6, 2014
    Publication date: March 26, 2015
    Inventors: Vitor Pereira, Ramin Khoini-Poorfard, Eric Mauger
  • Patent number: 8976301
    Abstract: The invention provides a digital television tuner having at least two branches that receive a radio frequency signal, wherein the radio frequency signal carries M channels (M is a positive integer). A target image data is generated in real time since at least one of the branches pre-extracts the image compression data of the next channel to be switched to.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: March 10, 2015
    Assignee: Realtek Semiconductor Corporation
    Inventor: Yi-Shu Chang
  • Publication number: 20150062438
    Abstract: A digital television includes a power line and a monitor. The power line includes a power connector, an electrical conductor, and a connector. The monitor includes a display module and a signal receiving module. The electrical conductor is used to supply power to the display module and the signal receiving module. The power line further comprises a transmitting module and an antenna conductor. The transmitting module is electrically connected to an external signal receiver to receive signal. The antenna conductor is connected to the transmitting module and the signal receiving module, whereby the signal received by the transmitting module is transmitted to the signal receiving module by the antenna conductor, and processed by the signal receiving module and transmitted to the display module. A digital television system is also provided.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Inventor: KUANG-YAO LIAO
  • Patent number: 8971424
    Abstract: A method for a receiver to estimate phase of a carrier wave, including receiving a carrier wave carrying pilot symbols and data symbols extending between the pilot symbols, determining phase of the carrier wave at received pilot symbols, and interpolating the phase of the carrier wave at points between pilot symbols based, at least in part, on an estimated phase of demodulated data symbols. Apparatus for estimate phase of a carrier wave, including a unit for determining phase of the carrier wave at received pilot symbols, and a unit for interpolating the phase of the carrier wave at points between pilot symbols based, at least in part, on an estimated phase of demodulated data symbols. Related apparatus and methods are also described.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 3, 2015
    Assignee: Ceragon Networks Ltd.
    Inventors: Isaac Rosenhouse, Alon Harel
  • Publication number: 20150055021
    Abstract: An apparatus includes a splitter to receive a radio frequency (RF) signal and to provide the RF signal to multiple channels of a tuner. Each channel may include an amplifier to amplify the RF signal, a mixer to downconvert the amplified RF signal to a second frequency signal using a local oscillator (LO) signal, where each of the channels is configured to receive a different LO signal, a filter to filter the downconverted second frequency signal, and a digitizer to digitize the downconverted second frequency signal. A clock generation circuit has multiple interpolative dividers and a frequency synthesizer to generate a reference clock signal. Each of the interpolative dividers is configured to receive the reference clock signal, generate a corresponding LO signal, and provide the corresponding LO signal to the mixer of at least one of the channels.
    Type: Application
    Filed: October 3, 2014
    Publication date: February 26, 2015
    Inventors: Mustafa H. Koroglu, Abdulkerim L. Coban
  • Patent number: 8953098
    Abstract: A television signal processing device and a television signal processing method are proposed according to embodiments of the present invention, wherein the television signal processing device includes a first signal processing unit, a television demodulator, and a second signal processing unit. The first signal processing unit performs a first signal processing operation upon a television signal according to a feedback signal to reduce distortion of the television signal and accordingly generate a processed television signal. The television demodulator is coupled to the first signal processing unit for receiving the processed television signal, and demodulating the processed television signal to generate a demodulated television signal.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 10, 2015
    Assignee: Mediatek Inc.
    Inventors: Seng-Chong Tiun, Ming-Luen Liou, Tsung-Han Wu, Yu Ding
  • Patent number: 8922719
    Abstract: Circuit for processing an input signal based on at least one reference signal, comprising a phase locked loop demodulator configured to receive a speed control signal and said input signal and further configured to follow a frequency and/or a phase of said input signal at a speed, wherein said speed depends on said speed control signal; and a reference signal detector configured to determine said at least one reference signal and to set said speed by outputting said speed control signal to said phase locked loop demodulator, wherein, if said reference signal detector detects said at least one reference signal, said reference signal detector decreases said speed.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: December 30, 2014
    Assignee: Sony Deutschland GmbH
    Inventors: Gerd Spalink, Ben Eitel
  • Publication number: 20140375892
    Abstract: An audio/video content receiver for receiving and decoding audio/video data signals modulated onto transmission channels, at least one transmission channel carrying non-viewing information includes: a tuner arrangement capable of concurrently tuning to two or more transmission channels; a multiplexer configured to generate a composite data signal from received audio/video signals relating to required programs for decoding; a content decoder capable of concurrently decoding two or more audio/video programs from the composite data signal; a detector configured to detect whether one or more of the transmission channels tuned by the tuner arrangement are not currently in use in respect of providing a program for decoding; a controller, responsive to a detection that a transmission channel is not currently in use, for controlling the tuner to tune that channel to a transmission channel carrying non-viewing information; and a non-viewing information decoder for decoding the received non-viewing information.
    Type: Application
    Filed: March 20, 2013
    Publication date: December 25, 2014
    Applicants: Sony Corporation, Sony Europe Limited
    Inventor: David Hill-Jowett
  • Publication number: 20140375890
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a first frame provided for a fixed terminal and a second frame provided for a mobile terminal, the second frame including common service data commonly provided for the fixed terminal and the mobile terminal; an information inserting unit configured to insert access information on the common service data into a signaling area of the first frame; and a transmitter configured to transmit the first and second frames.
    Type: Application
    Filed: February 10, 2014
    Publication date: December 25, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-hee HWANG, Hyun-koo YANG, Hak-ju LEE
  • Patent number: 8908107
    Abstract: A remote control system includes a remote control device and an electronic device. The remote control device includes an input element, a wireless transmitter to transmit an absolute coordinate signal and a motion signal and a control unit electrically connected to the input element and the wireless transmitter. The electronic device includes a wireless receiver and a display screen. The wireless receiver receives the absolute coordinate signal and the motion signal, and displays the absolute coordinate signal at the display screen via a cursor. When the electronic device does not receive the motion signal, the absolute coordinate signal is not operated on an application program of the electronic device. When the electronic device receives the motion signal, the absolute coordinate signal is operated on the application program.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: December 9, 2014
    Assignee: ASUSTeK Computer Inc.
    Inventor: Cheng-Shen Wu
  • Patent number: 8902365
    Abstract: Various embodiments are described herein for a universal television receiver that is capable of processing television channel signals broadcast according to a variety of analog and digital broadcast standards. In particular, various embodiments are provided for avoiding interferers in a desired television channel signal and these embodiments generally include changing sampling rate, shifting certain oscillation frequencies or changing sampling rate and shifting certain oscillation frequencies.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: December 2, 2014
    Inventors: Lance Greggain, Vyacheslav Shyshkin, Chris Ouslis, Steve Selby
  • Patent number: 8891022
    Abstract: Boot-up delay within a television receiver IC is substantially reduced by loading a portion of an operating program into the television receiver IC to enable execution of time-consuming receiver initialization operations, and then executing the receiver initialization operations concurrently with loading the remainder of the operating program into the television receiver IC. By this operation, the time required to execute the receiver initialization operations may be at least partly hidden under the time required to load the operating program, thereby substantially reducing the boot-up delay.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: November 18, 2014
    Assignee: Telegent Systems, Inc.
    Inventors: Shaori Guo, Zu Bing Yuan, Andrew J. Burstein
  • Patent number: 8885107
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program capable of appropriately demodulating a desired signal from a multiplexed signal obtained by multiplexing a plurality of signals. A preamble signal is detected from a multiplexed signal obtained by multiplexing a plurality of signals. When information for discriminating each of the signals that is contained in the preamble signal indicates a first signal, demodulation by a demodulator is continued and the first signal is demodulated. When information for discriminating each of the signals that is contained in the preamble signal indicates a second signal, demodulation is not performed by stopping the demodulation by the demodulator. The present technology can be applied to a signal processing device that processes signals for digital broadcasting.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: November 11, 2014
    Assignee: Sony Corporation
    Inventors: Takashi Yokokawa, Lachlan Bruce Michael, Yuken Goto, Kenichi Kobayashi
  • Publication number: 20140320748
    Abstract: A method and system for capturing, storing, and streaming over the air broadcasts based on user requests is disclosed. The system and method utilize subarrays of antenna elements for receiving over the air broadcasts. Processing pipelines are used to demodulate, transcode and index the content transmissions to produce content data that are streamed to users. In this way, the feeds from antennas can be accessed by users over a network connection.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Inventors: Chaitanya Kanojia, Joseph Thaddeus Lipowski
  • Patent number: 8872983
    Abstract: According to one embodiment, an information processing apparatus includes a receiver configured to receive content, an acquiring unit configured to acquire a time required for reproducing the content, a counter configured to count a first time including at least the required time, and a display controller configured to display the content on the display unit and terminate display of a video on the display unit after expiration of the first time.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hitoshi Yoshida
  • Patent number: 8860891
    Abstract: A method and apparatus for increasing the effective contrast ratio and brightness yields for digital light valve image projectors using a variable luminance control mechanism (VLCM), associated with the projector optics, for modifying the light output and provide a correction thereto; and an adaptive luminance control module (ALCM) for receiving signals from the video input board, the adaptive luminance control module producing a signal on a VLCM bus connecting the variable luminance control mechanism and the adaptive luminance control module, the signal causing the variable luminance control mechanism to change the luminance of the light output and provide a corrected video signal for the projector.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: October 14, 2014
    Inventors: Eddie E. Allen, Thomas D. Strade, Christopher Coley
  • Publication number: 20140300823
    Abstract: A digital television (DTV) receiver for processing a DTV signal, the DTV receiver including a receiver to receive a digital television signal including a plurality of extended text table (ETT) instances that appear in transport stream packets with common PID values, the ETT instances having common table ID values, each ETT instance comprising a section header and a message body, the section header containing a table identification (ID) extension field that serves to establish uniqueness of each ETT instance; a demodulator to demodulate the digital television signal; and an identifier to identify at least one pertinent ETT instance from the plurality of ETT instances.
    Type: Application
    Filed: June 20, 2014
    Publication date: October 9, 2014
    Inventors: Jin Pil KIM, Kyung Mee LEE
  • Patent number: 8856857
    Abstract: This technique relates to a receiving device, a receiving method, and a program that can demodulate transmitted signals with high accuracy. A receiving device of this disclosure includes: an amplifying unit that amplifies a received signal; an adjusting unit that adjusts gain of the amplifying unit in accordance with power of the signal; a demodulating unit that demodulates the amplified signal; and a detecting unit that detects an interval from the signal, information having the same content continuously appearing in the interval. The adjusting unit restricts the process of adjusting the gain of the amplifying unit in accordance with a result of the detection of the interval. This disclosure can be applied to receiving devices that receive broadcast signals compliant with DVB-C2 via a CATV network.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 7, 2014
    Assignee: Sony Corporation
    Inventors: Kenichi Kobayashi, Naoki Yoshimochi
  • Patent number: 8854541
    Abstract: A demodulator of a video demodulation device includes an analog-to-digital converter converting an analog IF signal into a digital IF signal, a luminance gain adjuster performing gain adjustment of a luminance component included in the digital IF signal such that a maximum of the luminance component within a predetermined period becomes equal to a predetermined reference value, and a synchronization corrector receiving as input a result of the gain adjustment, correcting a signal corresponding to a signaling period of the horizontal synchronizing signal, and outputting the signal as a CVBS signal. The synchronization corrector outputs, as the CVBS signal, a composite signal containing the luminance component and a color component included in the gain adjustment result when the composite signal is smaller than the reference value, or the reference value when the composite signal is equal to or greater than the reference value.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 7, 2014
    Assignee: Panasonic Corporation
    Inventor: Haruka Takano
  • Patent number: 8848112
    Abstract: A fast channel switching method and apparatus for a digital broadcast receiver having a single tuner are disclosed. The fast channel switching method includes setting an ongoing service channel and at least one standby service channel, buffering broadcast data received through the ongoing and standby service channels, outputting the buffered broadcast data of the ongoing service channel, determining whether the ongoing service channel is switched to one of the standby service channels, outputting, if the ongoing service channel is switched to one of the standby service channels, the buffered broadcast data of the switched standby service channel and resetting the ongoing and standby service channels.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong Wook Seo, Wei Jin Park, Jong Kerl Lee
  • Publication number: 20140267925
    Abstract: An apparatus includes a splitter to receive a radio frequency (RF) signal and to provide the RF signal to multiple channels of a tuner. Each channel may include an amplifier to amplify the RF signal, a mixer to downconvert the amplified RF signal to a second frequency signal using a local oscillator (LO) signal, where each of the channels is configured to receive a different LO signal, a filter to filter the downconverted second frequency signal, and a digitizer to digitize the downconverted second frequency signal. A clock generation circuit has multiple interpolative dividers and a frequency synthesizer to generate a reference clock signal. Each of the interpolative dividers is configured to receive the reference clock signal, generate a corresponding LO signal, and provide the corresponding LO signal to the mixer of at least one of the channels.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: SILICON LABORATORIES INC.
    Inventors: Mustafa H. Koroglu, Abdulkerim L. Coban
  • Publication number: 20140253812
    Abstract: Provided is an analog front end of a digital TV, a digital TV system having the same, and a method of operating the same. The analog front end includes: a first selection circuit which selectively outputs differential sound intermediate frequency signals or differential TV broadcast signals in response to a first selection signal; a second selection circuit which outputs a clock signal among a plurality of clock signals having a different sampling frequencies, in response to a second selection signal; and an analog-to-digital converter which converts output signals output from the first selection circuit to a digital code, according to a sampling frequency of a clock signal output from the second selection circuit.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho KIM, Ho Jin PARK, Hyung Woan KOO, Ki Ho LEE
  • Patent number: 8823806
    Abstract: A DTV pilot sensor generates DTV pilot tone detection decisions associated with monitored television band channels without knowledge or estimation of a noise level of the monitored channel.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 2, 2014
    Assignee: Wi-Lan, Inc.
    Inventors: Vajira Samarasooriya, Daniel Payer, Jung Yee
  • Patent number: 8817195
    Abstract: An embodiment of the present invention provides a method for digital television demodulation, comprising using adjacent-channel power dependent automatic gain control (AGC) for the digital television demodulation, wherein an AGC technique takes into account a total power as well as power of adjacent channels to control gain of a gain control amplifier.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 26, 2014
    Assignee: Intel Corporation
    Inventors: Parveen K. Shukla, Bernard Arambepola, Thushara Hewavithana, Sahan Gamage
  • Patent number: 8804846
    Abstract: An integrated circuit device for processing a signal includes: a digital television (DTV) demodulator which receives and demodulates a modulated DTV signal, and outputs a demodulated DTV signal; an analog TV demodulator which receives and demodulates a modulated analog TV signal, and outputs a demodulated first analog TV signal; and a multiplexer which receives the demodulated DTV signal from the DTV demodulator and the demodulated first analog TV signal from the analog TV demodulator, and selectively outputs one of the demodulated DTV signal and the demodulated first analog TV signal.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-ho Choi
  • Patent number: 8804049
    Abstract: The present invention relates to a wireless communication receiver, wireless communication receiving method and television receiver. The wireless communication receiver has signal processing circuits including a first signal processing circuit and a second signal processing circuit, a data storage module, and a deinterleaver. The first signal processing circuit receives a wireless communication signal and then performs a first signal processing to generate a first output data according to the wireless communication signal. The deinterleaver stores the first output data into the data storage module, and retrieves a deinterleaved data corresponding to the first output signal from the data storage module. The second signal processing circuit performs a second signal processing to generate a second output data according to the deinterleaved data.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 12, 2014
    Assignee: Mediatek Inc.
    Inventor: Shun-An Yang
  • Patent number: 8792589
    Abstract: A wireless microphone system broadcasts a pilot tone at the designated ATSC pilot position in the TV Band channel being used by the wireless microphone system. The pilot tone is a readily detectable waveform transmitted in the ATSC pilot position. The pilot tone can be generated by any one of: a standalone pilot tone generator; a pilot tone generator incorporated into a wireless microphone receiver; or, a pilot tone generator incorporated into a wireless microphone.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: July 29, 2014
    Assignee: Wi-LAN Inc.
    Inventors: Shiquan Wu, Vajira Samarasooriya
  • Patent number: RE45506
    Abstract: An enhanced VSB receiver includes a tuner which tunes an RF signal and converts it into an IF signal, an IF mixer which converts the IF signal into a baseband signal, and a demodulator which demodulates the baseband signal into a VSB signal. The enhanced VSB receiver further includes a map recovery unit which recovers VSB map information of the VSB signal, an enhanced equalizer for compensating channel distortion of the VSB signal and outputting an equalized symbol, and an enhanced Viterbi decoder for estimating whether polarity inversion occurred during a symbol period of the equalized symbol and Viterbi-decoding the equalized symbol based on the polarity estimation.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 5, 2015
    Assignee: LG Electronics Inc.
    Inventors: In Hwan Choi, Kyong Won Kang
  • Patent number: RE46175
    Abstract: A DTV transmitting system includes a pre-processor, a block processor, and a trellis encoder. The pre-processor pre-processes enhanced data by expanding the enhanced data at an expansion rate of 1/H. The block processor includes a first converter, a symbol encoder, a symbol interleaver, and a second converter. The first converter converts the expanded data into symbols. The symbol encoder encodes each valid enhanced data bit in the symbol at an effective coding rate of 1/H. The symbol interleaver interleaves the encoded symbols, and the second converter converts the interleaved symbols into enhanced data bytes. The trellis encoder trellis-encodes the enhanced data outputted from the block processor.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 4, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Woo Kim, In Hwan Choi, Hyoung Gon Lee
  • Patent number: RE46288
    Abstract: A digital television receiving system includes a first known data detector, a second known data detector, and a selector. The first known data detector detects a location of a first known data sequence in a broadcast signal by calculating a first correlation value between the broadcast signal and a first reference known data sequence. Similarly, the second known data detector detects a location of a second known data sequence in the broadcast signal by calculating a second correlation value between the broadcast signal and a second reference known data sequence. The selector selects the location information detected by one of the first and second known data detectors with a greater correlation value.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: January 24, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: In Hwan Choi, Kook Yeon Kwak, Byoung Gill Kim, Jin Woo Kim, Hyoung Gon Lee, Jong Moon Kim, Won Gyu Song