Patents Assigned to Entropic Communications
  • Apparatuses and Methods for Conversion of Radio Frequency (RF) Signals to Intermediate Frequency (IF) Signals
    Publication number: 20130278304
    Abstract: Various embodiments implement apparatuses and methods for conversion of radio frequency (RF) signals to intermediate frequency (IF) signals. More particularly, some embodiments are directed toward down conversion of RF signals to IF signals in a multi-band radio receiver, such as a satellite receiver, using a single oscillator for different frequency bands. For example, some of the apparatuses and methods presented are suitable for integration into monolithic RF integrated circuits in low-cost satellite receivers for home entertainment use.
    Type: Application
    Filed: August 27, 2012
    Publication date: October 24, 2013
    Applicant: Entropic Communications, Inc.
    Inventors: Jeremy Goldblatt, Branislav Petrovic, Martin Alderton, Wing Fat Andy Lau
  • Determining a vector field for an intermediate image
    Patent number: 8565313
    Abstract: The invention relates to a method for generating a motion vector field for an intermediate image disposed between a first and a second image.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: October 22, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Markus Schu, Peter Rieder, Kilian Jacob, Mark-Oliver Richter, Karsten Roscher
  • Broadband satellite system for the simultaneous reception of multiple channels using shared iterative decoder
    Patent number: 8566678
    Abstract: Multiple channels of received data are processed by a multiple channel demodulation and error correction decoding engine. The statistical uncertainty of processing channels with an iterative decoder are averaged across all the channels to reduce the total processing power required of the decoding engine compared to processing each channel with a separate engine. A set of input buffers holds blocks of data for each channel needing decoding. A quality measure is computed on each input block to set the priority and iteration allocation of decoding in the common decoder. The input RF signal is digitized by a broadband tuner that processes some or all of the channels to feed the multiple channel demodulator and decoder. Multiple decoded video data streams are output.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 22, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Donald Brian Eidson, Arndt Joseph Mueller, Joseph B. Soriaga, Itzhak Gurantz
  • Packet data transmission with optimum preamble length
    Patent number: 8559461
    Abstract: In a communication network, a sending node transmits a message with a multi-segment preamble and data to a receiving node. The receiving node calculates characteristics of the sending unit, channel, or transmitted signal by processing preamble segments. Once an unknown characteristic is determined, a segment of the preamble can be eliminated or reduced in length for subsequent messages, which increases efficiency of the message transmissions.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: October 15, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Wee Pen Goh, Anton Monk, Ron Porat
  • Method and apparatus for LDPC transmission over a channel bonded link
    Patent number: 8553727
    Abstract: A particular overall architecture for transmission over a bonded channel system consisting of two interconnected MoCA (Multimedia over Coax Alliance) 2.0 SoCs (“Systems on a Chip) and a method and apparatus for the case of a “bonded” channel network. With a bonded channel network, the data is divided into two segments, the first of which is transported over a primary channel and the second of which is transported over a secondary channel.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: October 8, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Michail Tsatsanis, Arndt Mueller, David Barr, Na Chen
  • Efficient decoders for LDPC codes
    Patent number: 8549377
    Abstract: An LDPC decoder, applicable to LDPC codes including codes where check nodes within the same group are connected to a common bit node, successively processes groups of check nodes in a particular iteration, including updating bit nodes in that same iteration responsive to messages generated in response to processing a group of check nodes. Within an iteration, the LDPC decoder may also track the number of unresolved parity check equations, and cease iterating or output to an outer block decoder if that number reaches a local minima or standard minimum, falls below a predetermined threshold, or its rate of change falls below a predetermined threshold, indicating a lack of convergence or false convergence condition. The LDPC decoder may also provide a feedback assist to a demodulator. Also, a novel memory configuration may store messages generated by the decoder in the course of check node processing.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Shachar Kons, Yoav GoldenBerg, Gadi Kalit, Eran Arad, Shimon Gur, Ronen Hershkovitz
  • Dynamic bitloading
    Patent number: 8542683
    Abstract: The subject matter disclosed herein relates to dynamically adjusting bitloading for multiple destinations on a network.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: September 24, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Kenneth Chu, Inderjit Singh
  • System and method for intra-frame compression using predictive coding
    Patent number: 8542938
    Abstract: A system and method for intra-frame compression using predictive coding utilizes some pixels of a macroblock of a video frame as reference pixels to perform predictive coding on the rest of the macroblock when some or all predefined reference pixels for performing predictive coding on the macroblock are not available in the video frame.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 24, 2013
    Assignee: Entropic Communications, Inc.
    Inventor: Anurag Goel
  • De-blocking and de-ringing systems and methods
    Patent number: 8537903
    Abstract: Disclosed herein are various embodiments of decoding systems and methods. In one embodiment, among others, a decoding system comprises a de-blocking system configured to receive decoded video data and decoding information and remove blocking artifacts from the decoded video data, and a de-ringing system configured to remove ringing artifacts from the de-blocked video data.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: September 17, 2013
    Assignee: Entropic Communications, Inc.
    Inventor: Kyoungwon Lim
  • Digitally controlled oscillator with thermometer sigma delta encoded frequency control word
    Patent number: 8536916
    Abstract: Systems and methods for generating a thermometer sigma delta encoded frequency control word for controlling a digitally controlled oscillator in accordance with embodiments of the invention are disclosed. In one embodiment, an all digital phase locked loop for generating an output clock signal includes a thermometer pulse coder configured to generate a frequency control word (FCW) that includes thermometer coded signals and a pulse modulated dither signal, and transmit the pulse modulated dither signal over a selected FCW signal line and transmit the thermometer coded signals over other FCW signal lines, and a digitally controlled oscillator to receive a FCW comprising a combined thermometer and pulse modulated signal and generate an output clock signal.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: September 17, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Josephus A. van Engelen, Hairong Yu, Howard A. Baumer
  • Video circuit
    Patent number: 8537076
    Abstract: The invention relates to a video circuit (1) for processing video signals which show images on a display panel with linear light transition, comprising a gamma correction circuit (3), a quantizer (11) and a sub-field generator circuit (8). To save computing time, a random-access memory (7) replaces the quantizer (64).
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: September 17, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Petrus Maria De Greef, Rob Anne Beuker
  • Arrangement and approach for image data processing
    Patent number: 8531610
    Abstract: Image data is processed to produce an output using a frame insertion approach. According to an example embodiment, frames are generated for video data, based upon the video data and the presence (or absence) of artifacts in the video data. In one application, a dynamic frame insertion approach is used to selectively generate peaked and blurred video frames in a manner that mitigates undesirable display and/or enhancement of artifacts by tuning down or turning off the generation and/or insertion of video frames.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: September 10, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Haiyan He, Johan Gerard Willem Maria Janssen, Erwin Ben Bellers, Franciscus Hendrikus Van Heesch
  • Method and apparatus for line based vertical motion estimation and compensation
    Patent number: 8526502
    Abstract: The present invention is related to line based vertical motion estimation and vertical motion compensation in consecutive frames of a motion picture, wherein the picture is divided in at least one region, and wherein: in a first summation luminance values for each line of the at least one region of a previous frame are summed, wherein the first summation of luminance values results in a previous accumulation profile; in a second summation of luminance values of for each line of the at least one region of a current frame are summed, wherein said second summation of luminance values results in a current accumulation profile; and wherein a vertical motion vector is derived by use of the previous accumulation profile and of the current accumulation profile.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: September 3, 2013
    Assignee: Entropic Communications, Inc.
    Inventor: Volker Blume
  • Method and system for frame insertion in a digital display system
    Patent number: 8519928
    Abstract: A method and system for frame insertion in a digital display system is provided. The method is adapted for use with a liquid crystal display (LCD) type display and is effective to substantially reduce motion blur. The LCD display receives a sequence of digitized input frames at a first frequency. The method generates a sequence of output frames that include the digitized input frames interspersed with a plurality of modified frames. Each of the modified frames is substantially similar to a preceding digitized input frame, but has a reduced luminance. The modified frames may be generated by multiplying a preceding digitized input frame by a reduced luminance factor. The reduced luminance factor may be determined as a fixed value or as a function of an average pixel level of a preceding frame.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: August 27, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Jiande Jiang, Walter C. Lin
  • Method and apparatus of power management of a node in home entertainment network by shifting from a normal state into either a first low power state based on the traffic at the node or a second low power state upon receipt of a message granting a request for the second low power state at the node
    Patent number: 8522061
    Abstract: A power management system for home entertainment networks having three power states. The network controller is empowered to move nodes within the home entertainment network between the power states.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: August 27, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Yoav Hebron, Michail Tsatsanis, Changwen Liu, Na Chen
  • Encryption by pixel property separation
    Patent number: 8520849
    Abstract: A method of encrypting a digital file composed of a sequence of bytes, each byte defined by a relative position within the digital file and a value, the method comprising: using an encryption key to encode the relative position separately from the value of each byte; and producing an encrypted digital file in which the correlation between relative position and value of each byte in the original digital file is concealed in the encrypted digital file.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 27, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Karthik Chandrashekar Iyer, Aravinda Subramanya
  • Multiple pass video decoding method and device
    Patent number: 8520741
    Abstract: The present invention relates to a video decoder (DEC) for decoding a bit stream (BS) corresponding to pictures (P) of a video signal, coded pictures being likely to include macroblocks coded in a progressive and in an interlaced way, said decoder including a decoding unit (DEU) for decoding macroblocks coded in a progressive way. A video decoder according to the invention includes a decoding configuration unit (DCU) for activating said decoding unit several times for decoding a single picture and for configuring the read and/or write stride at each pass of said picture in said decoding unit.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 27, 2013
    Assignee: Entropic Communications, Inc.
    Inventor: Stephane Valente
  • Low-resolution video coding content extraction
    Patent number: 8514942
    Abstract: Low complexity method directly decode low-resolution frames from compressed high-resolution videos that were encoded using predictive coding techniques like the H.264 video coding standard. The smaller the decoding resolution, the higher will be the computation and power savings of using the method. Low-frequency coefficients of 2D transformed predictions are added to the low-frequency coefficients of the transformed residual error. Low-frequency coefficients of the reconstructed data are then inverse transformed taking a smaller size transform. Further savings are obtained by reconstructing only those reference pixels that will be needed for accurate decoding of further Intra blocks.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: August 20, 2013
    Assignee: Entropic Communications, Inc.
    Inventor: Anurag Goel
  • Multimedia over coaxial cable access protocol
    Patent number: 8498294
    Abstract: A BCN network with BCN modems that communicate using predefined messages to establish, optimize and facilitate data communication.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: July 30, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Anton Monk, Brett Bernath, Itzhak Gurantz, Ladd El Wardani, Ron Porat, Yusuf Ozturk, Ron Lee, Wee-Peng Goh, Magnus Berggren
  • DEVICE, SYSTEM AND METHOD OF ACCESSING DATA STORED IN A MEMORY
    Publication number: 20130191598
    Abstract: Device, system and method of accessing data stored in a memory. For example, a device may include a memory to store a plurality of data items to be accessed by a processor; a cache manager to manage, a cache within the memory, the cache including a plurality of pointer entries, wherein each pointer entry includes an identifier of a respective data item and a pointer to an address of the data item; and a search module to receive from the cache manager an identifier of a requested data item, search the plurality of pointer entries for the identifier of the requested data item and, if a pointer entry is detected to include an identifier of a respective data item that matches the identifier of the requested data item then, provide the cache manager with the point from the detected entry. Other embodiments are described and claimed.
    Type: Application
    Filed: March 12, 2013
    Publication date: July 25, 2013
    Applicant: Entropic Communications, Inc.
    Inventor: Entropic Communications, Inc.