Patents by Inventor Pavel Novotny

Pavel Novotny has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10264261
    Abstract: Apparatuses and methods for initializing a CABAC state are disclosed herein. An example apparatus may include an encoder configured to receive a macroblock dependent on at least one unencoded macroblock. The encoder may further be configured to receive a plurality of CABAC states and initialize CABAC in accordance with one of the plurality of CABAC states to encode the macroblock prior to the at least one unencoded macroblock being encoded.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 16, 2019
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Eric C. Pearson, Pavel Novotny
  • Patent number: 10230956
    Abstract: Methods and apparatuses for optimizing rate-distortion of syntax elements are disclosed herein. An optimization block may be used in a video encoder and may include a candidate generation block and a best cost block. The optimization block may be configured to generate a plurality of candidates corresponding to respective differential levels. Each of the plurality of candidates may be based, at least in part, on a DC coefficient and provide a respective rate-distortion cost. The best cost block may be coupled to the candidate generation block and may be configured to select a candidate of the plurality of candidates according to a criteria.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: March 12, 2019
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Krzysztof Hebel, Eric C. Pearson, Pavel Novotny
  • Publication number: 20180332308
    Abstract: An apparatus includes a filter circuit and an encoder. The filter circuit may be configured to (i) calculate a noise level of a frame of a video signal based on a subset less than all of a plurality of blocks of the frame, where each of the blocks in the subset may have an associated weighted activity to variance ratio that exceeds a threshold value and (ii) generate a filtered video signal based on the noise level. An estimated noise level of each of the blocks in the subset may be selected from one of (a) an activity of the block, (b) another activity of a reference block of another frame and (c) a sum of absolute pixel differences between the block and the reference block. The encoder may be configured to generate a bitstream by encoding the filtered video signal.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 15, 2018
    Inventor: Pavel Novotny
  • Patent number: 10057601
    Abstract: A technique to perform filtering of ringing artifacts is disclosed herein. An example apparatus may include a decoder configured to receive a bitstream, decode the bitstream into blocks, identify conditions in the blocks associated with generation of ringing artifacts, and filter the ringing artifacts from one or more of the blocks responsive to identification of the conditions by the decoder. An example method may include detecting conditions in a bitstream that lead to ringing artifacts, configuring a filter based on the conditions, and filtering the ringing artifacts from blocks of decoded bitstream.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: August 21, 2018
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Pavel Novotny, Eric C. Pearson
  • Patent number: 10027986
    Abstract: Apparatuses and methods for filtering noise from a video signal are described herein. An example apparatus may include a noise filter system configured to filter noise from a frame of a video signal based on a noise level of the frame to provide a filtered video signal. The noise filter system may be configured to select macroblocks of the frame that have an associated weighted activity to variance ratio that exceeds a threshold value. The noise filter system may be further configured to calculate the noise level of the frame based on estimated noise levels of each of the selected macroblocks of the frame. The example apparatus may further include an encoder configured to encode the filtered video signal to provide a compressed bitstream.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 17, 2018
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventor: Pavel Novotny
  • Publication number: 20160373787
    Abstract: A technique to perform filtering of ringing artifacts is disclosed herein. An example apparatus may include a decoder configured to receive a bitstream, decode the bitstream into blocks, identify conditions in the blocks associated with generation of ringing artifacts, and filter the ringing artifacts from one or more of the blocks responsive to identification of the conditions by the decoder. An example method may include detecting conditions in a bitstream that lead to ringing artifacts, configuring a filter based on the conditions, and filtering the ringing artifacts from blocks of decoded bitstream.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 22, 2016
    Inventors: PAVEL NOVOTNY, ERIC C. PEARSON
  • Publication number: 20160352776
    Abstract: A method for managing local ports in a packet-oriented data network is proposed, wherein packets are assigned to a selected local port, and assignment of a local port is controlled based on observation of transmission on the network. The invention also relates to a local port managing device, a packet-oriented data network, a digital storage media, and a computer program product.
    Type: Application
    Filed: August 9, 2016
    Publication date: December 1, 2016
    Inventors: Tomas Malecek, Pavel Novotny, Martin Plsek
  • Publication number: 20160205398
    Abstract: Apparatuses and methods are disclosed herein that describe efficient encoding of random noise. For example, a method for efficiently encoding random noise is described that includes intra-coding a frame that includes noise and copying the noise from the intra-coded frame into a subsequent frame during encoding using motion estimation. An example apparatus for efficient encoding of random noise may include an encoder configured to copy noise from an encoded reference intra-coded frame into an inter-coded frame based on a best mode decision, wherein the inter-coded frame at least partially comprises noise, and a mode decision block configured to determine the best mode for encoding the inter-coded frame.
    Type: Application
    Filed: January 8, 2015
    Publication date: July 14, 2016
    Inventor: PAVEL NOVOTNY
  • Publication number: 20160088316
    Abstract: Apparatuses and methods for filtering noise from a video signal are described herein. An example apparatus may include a noise filter system configured to filter noise from a frame of a video signal based on a noise level of the frame to provide a filtered video signal. The noise filter system may be configured to select macroblocks of the frame that have an associated weighted activity to variance ratio that exceeds a threshold value. The noise filter system may be further configured to calculate the noise level of the frame based on estimated noise levels of each of the selected macroblocks of the frame. The example apparatus may further include an encoder configured to encode the filtered video signal to provide a compressed bitstream.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventor: Pavel Novotny
  • Publication number: 20160007023
    Abstract: Apparatuses and methods for adjusting coefficients for use in video encoding are described. An example apparatus may include an encoder that may be configured to receive transform coefficients and adjust selected ones of the transform coefficients (e.g. reset the selected ones to zero) based on a comparison with a threshold. The adjusted coefficients may then be quantized, which may result in effectively increasing a QP range of the encoder.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Inventor: PAVEL NOVOTNY
  • Publication number: 20150379693
    Abstract: A technique to perform edge-aware spatial noise filtering that may filter random noise from frames While maintaining the edges in the frames. The technique may include receiving a frame comprising a pint ht of pixels, filtering a subset of the plurality of pixels based on a weighting factor associated with each pixel of the subset of pixels, wherein the weighting factor is at least in part based on a difference in pixel value between the pixel and the individual pixels in the subset, and providing the filtered pixel to an encoder for encoding.
    Type: Application
    Filed: June 26, 2014
    Publication date: December 31, 2015
    Inventors: Pavel Novotny, Eric Pearson
  • Publication number: 20150312601
    Abstract: Examples methods and apparatuses including a statistical multiplexer (statmux) system with multiple channel rate control are described herein. The statmux system includes a rate controller, multiplex control unit and a plurality of encoders. An encoder of the plurality of encoders may be configured to provide a respective encoded bitstream of encoded coding units. The rate controller may buffer respective coding units of at least two of the plurality of channels based on statistical information from the plurality of encoders. The multiplex control unit may adjust multiplexing instructions for multiplexing the plurality of channels based on statistical information from the plurality of encoders, and may provide feedback to the rate controller based on the adjusted multiplexing instructions. The rate controller may provide a quality parameter to the plurality of encoders having a value based on the amount of buffered coding units and the feedback from the multiplex control unit.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 29, 2015
    Applicant: MAGNUM SEMICONDUCTOR, INC.
    Inventor: PAVEL NOVOTNY
  • Patent number: 9154782
    Abstract: Apparatuses and methods for adjusting coefficients for use in video encoding are described. An example apparatus may include an encoder that may be configured to receive transform coefficients and adjust selected ones of the transform coefficients (e.g. reset the selected ones to zero) based on a comparison with a threshold. The adjusted coefficients may then be quantized, which may result in effectively increasing a QP range of the encoder.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: October 6, 2015
    Assignee: Magnum Semiconductor, Inc.
    Inventor: Pavel Novotny
  • Publication number: 20150256832
    Abstract: Examples of methods and apparatuses for performing video quantization rate distortion calculations are described herein. An example apparatus may include an encoder configured to encode a macroblock of a frame. The encoder including a rate-distortion (RD) calculator configured to individually quantize a set of coefficient blocks using each of a subset of a plurality of quantization parameter (QP) values to provide individual sets of quantized coefficient blocks. Each of the individual sets of coefficient blocks is based on data of the macroblock. The RD calculator is further configured to determine individual accumulated rate and accumulated distortion value pairs for each of the plurality of QP values based on the individual sets of quantized coefficient blocks.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 10, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventors: Eric C. Pearson, Pavel Novotny
  • Publication number: 20150208069
    Abstract: A technique for improving the subject visual quality of encoded video that includes a video quality module configured to determine a video quality metric (VQM) for each data block of a plurality of data blocks and a modulator coupled to the video quality module. The modulator configured to modulate a video encoding parameter to improve the quality for each data block of the plurality of data blocks based on a normalized VQM for each data block of the plurality of data blocks.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 23, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventors: Lin Zheng, Pavel Novotny
  • Publication number: 20150124870
    Abstract: A video encoding method for encoding a stream of baseband video data. The stream of baseband video data is received as a plurality of coding units. Statistics of each coding unit in the plurality of coding units are gathered. A quantization parameter (QP) for each coding unit is determined from the corresponding statistics. The coding unit is trial encoded using the QP to generate a trial encoded coding unit; and the QP is updated based on the trial encoded coding unit. Trial encoding the coding unit and updating the QP are repeated until the trial encoded coding unit meets a predetermined criterion. Then the coding unit is final encoded using the updated QP to generate a final encoded coding unit.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventor: Pavel Novotny
  • Publication number: 20150078440
    Abstract: Apparatuses and methods for adjusting coefficients for use in video encoding are described. An example apparatus may include an encoder that may be configured to receive transform coefficients and adjust selected ones of the transform coefficients (e.g. reset the selected ones to zero) based on a comparison with a threshold. The adjusted coefficients may then be quantized, which may result in effectively increasing a QP range of the encoder.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventor: Pavel Novotny
  • Publication number: 20150071343
    Abstract: Examples methods and apparatuses including an encoding system with temporally adaptive quantization are described herein. An example apparatus may include an encoding system configured to receive a coding unit of a video signal. The coding unit may include a plurality of sub-coding units. The encoding system may be further configured to determine spatial complexity statistics and motion estimation statistics associated with a sub-coding unit of the plurality of sub-coding units. The encoding system may be further configured to modify a quantization parameter associated with the coding unit based on the spatial complexity statistics and the motion estimation statistics, and to encode the sub-coding unit using the modified quantization parameter.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventor: Pavel Novotny
  • Publication number: 20150063449
    Abstract: Apparatuses and methods for initializing a CABAC state are disclosed herein. An example apparatus may include an encoder configured to receive a macroblock dependent on at least one unencoded macroblock. The encoder may further be configured to receive a plurality of CABAC states and initialize CABAC in accordance with one of the plurality of CABAC states to encode the macroblock prior to the at least one unencoded macroblock being encoded.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 5, 2015
    Applicant: Magnum Semiconductor, Inc.
    Inventors: Eric C. Pearson, Pavel Novotny
  • Publication number: 20150030021
    Abstract: A method for managing local ports in a packet-oriented data network is proposed, wherein packets are assigned to a selected local port, and assignment of a local port is controlled based on observation of transmission on the network. The invention also relates to a local port managing device, a packet-oriented data network, a digital storage media, and a computer program product.
    Type: Application
    Filed: November 21, 2012
    Publication date: January 29, 2015
    Inventors: Tomas Maleck, Pavel Novotny, Martin Plsek