Drop-out Detection Patents (Class 386/270)
  • Patent number: 11854580
    Abstract: User-generated content is received from multiple user devices, including first content recorded by a first user device during a first time interval and second content recorded by a second user device during a second time interval. If the second time interval immediately precedes, or immediately follows, the first time interval, then at least a portion of the second content may be appended to the first content. For example, if a user ends recording of the first content before an interesting event occurs, then a portion of the second content may be appended to the first content so that the user has a recording including the missed event. The second content may be selected based on a location, and/or a field of view of the second user device during the second time interval being similar to that of the first user device during the first time interval.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Rovi Guides, Inc.
    Inventor: Vishwas Sharadanagar Panchaksharaiah
  • Patent number: 11770518
    Abstract: Detecting stereoscopic camera desynchronization may include: receiving, at a processing unit, a first frame from a first camera and a second frame from a second camera, wherein the first camera provides first time data for when the first frame is captured by the first camera and the second camera provides second time data indicating when the second frame is captured by the second camera; associating, with the first image and independent of the first time data, a first timestamp; associating, with the second image and independent of the second time data, a second timestamp; and determining, by the processing unit, whether the first camera and the second camera are synchronized based on the first timestamp and the second timestamp.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: September 26, 2023
    Assignee: GHOST AUTONOMY INC.
    Inventors: Ashish Jain, Nelson Tam, Anjani Kumar Verma, James S. Cross
  • Patent number: 11100936
    Abstract: There is provided mechanisms for frame loss concealment. A method is performed by a receiving entity. The method comprises adding, in association with constructing a substitution frame for a lost frame, a noise component to the substitution frame. The noise component has a frequency characteristic corresponding to a low-resolution spectral representation of a signal in a previously received frame.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 24, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Stefan Bruhn
  • Patent number: 10924787
    Abstract: Systems, methods, and devices for synchronizing playback of segmented video content across multiple video playback devices are described herein. In example implementations, a video server provides, to one or more playback devices, an age of a playlist for the video content. A particular playback device receives fragments of the video content from the video server and schedules the video fragments for playback. If the actual playback time of a video fragment is not aligned with its scheduled playback time, then video fragment is modified, e.g., by adding video frames to or removing video frames from the video fragment. Modification of the video fragments continues until the actual playback times of the video fragments synchronize with their respective scheduled playback times.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 16, 2021
    Assignee: Comcast Cable Communications, LLC
    Inventor: Neill Kipp
  • Patent number: 10757469
    Abstract: Methods and systems for transmitting an interruption-free version of a television program for recording on a user equipment device. In one aspect, a system transmits a first stream including a television program to a user equipment device. The system receives an indication that the television program is being recorded on the user equipment device. The system determines whether an interruption is imminent during transmission of the television program. In response to determining that the interruption is imminent, the system generates a second stream including the television program. The second stream does not include the interruption during the transmission of the television program. The system transmits the second stream to the user equipment device along with an instruction to switch recording of the television program from the first stream to the second stream.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 25, 2020
    Assignee: Rovi Guides, Inc.
    Inventors: Daniel Thomas Ward, Arevik Chimayan, Walter R. Klappert
  • Patent number: 10734031
    Abstract: A communication apparatus configured to transmit information about content stored in an external apparatus is enabled to autonomously perform control based on a state based on reproduction processing of the content in a destination to which the information is transmitted. Another communication apparatus configured to receive related information about the content from the communication apparatus and perform the reproduction processing on the content based on the related information transmits information about the state related to the reproduction processing of the content. The communication apparatus receives the information about the state related to the reproduction processing of the content, and performs control based on the received information.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: August 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshiyuki Nakagawa
  • Patent number: 10529341
    Abstract: There is provided mechanisms for frame loss concealment. A method is performed by a receiving entity. The method comprises adding, in association with constructing a substitution frame for a lost frame, a noise component to the substitution frame. The noise component has a frequency characteristic corresponding to a low-resolution spectral representation of a signal in a previously received frame.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 7, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Stefan Bruhn
  • Patent number: 9972327
    Abstract: There is provided mechanisms for frame loss concealment. A method is performed by a receiving entity. The method comprises adding, in association with constructing a substitution frame for a lost frame, a noise component to the substitution frame. The noise component has a frequency characteristic corresponding to a low-resolution spectral representation of a signal in a previously received frame.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: May 15, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Stefan Bruhn
  • Publication number: 20150093097
    Abstract: It is provided a method for resuming an interrupted session of multimedia content with a rendering device. It comprises the steps of reading a status information of the interrupted session, said information being stored in a portable device; and resuming the session of the multimedia content based on the status information read.
    Type: Application
    Filed: December 21, 2011
    Publication date: April 2, 2015
    Applicant: Thomson Licensing
    Inventors: Yanfeng Zhang, Zhigang Zhang, Xaiojun Ma
  • Patent number: 8942543
    Abstract: Methods, systems, and software are provided herein that allow for storing a data file in a storage device. The storage system splits a video data file into a plurality of data segments, generates a plurality of recovery headers for the data segments, and combines ones of the recovery headers with ones of the data segments to form a plurality of storage packets.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: January 27, 2015
    Assignee: Verint Video Solutions Inc.
    Inventors: Mortimer Hubin, Sylvain Ouellet
  • Publication number: 20140334800
    Abstract: Systems and methods for a self-correcting DVR record pipeline may provider for simpler, lower cost transport producer hardware elements. A free running transport pipeline producer may fill transport buffers without waiting for feedback from the data consumer that data has been completely processed. The pipeline data consumer independently detects transport buffers that are overwritten before processing on the buffer content is complete. The pipeline data consumer drops or deletes any invalid content or stream data to recover from the data overflow condition.
    Type: Application
    Filed: April 8, 2014
    Publication date: November 13, 2014
    Applicant: General Instrument Corporation
    Inventors: Ernest G. Schmitt, Faisal Anwar, Surya P. Maheswaram, Manu Shrot
  • Patent number: 8774602
    Abstract: A method and system for recording a media file, include a recorder and a player. The recorder receives in real time a first content of the media file; stores the first content in a recorded media file; and determines that the recorded media file includes a hole. The player plays in real time the recorded media file including the hole. The recorder then receives a second file data packet which includes a second content of the media file to fill the hole, and stores the second content in the recorded media file. The recorded media file can be replayed with the filled hole. During the replay, more content of the media file is played than during the first play.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 8, 2014
    Assignee: TP Lab, Inc.
    Inventors: Chi Fai Ho, Shin Cheung Simon Chiu
  • Patent number: 8606081
    Abstract: A stream data recording device is provided for recording stream data on a recording medium. The stream data recording device includes a stream reception/analysis unit (101), acquiring stream data from reception data, a a missing portion detection unit (102) detecting a missing packet portion in the acquired stream data, a section information generation unit (103) generating time information specifying the duration of the unreceivable section including the packets whose missing portion has been detected and position information specifying the position of the unreceivable section in the stream data, and a recording unit (105) recording the acquired stream data, the generated time information and position information on the recording medium. Thus, even if the recording-target stream data is missing a portion during reception of the stream data, the data can be correctly played back from the seek time specified by a user.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventors: Kazuhiko Hirayama, Akihiro Miyazaki, Michiko Fuchikami, Norihiro Matsui, Nobunari Murai
  • Patent number: 8542983
    Abstract: A method of generating a summary of an audio/visual data stream is provided, the data stream comprising a plurality of consecutive frames having audio and visual properties. A plurality of shots of an audio/visual data stream are detected (step 204). A plurality of segments of the audio/visual data stream are determined (step 206), each segment comprising a plurality of the shots of the data stream having similar visual properties. A segment of the determined plurality of segments is selected (step 208). For each shot of said selected segment of said data stream, the audio in a plurality of consecutive frames which occur after the end of said shot is extracted (step 210). At least one of the shots is selected based on the extracted audio (step 212). A summary is generated to include the selected at least one of the shots (step 214).
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: September 24, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Milan Pastrnak, Pedro Fonseca
  • Patent number: 8521008
    Abstract: An image recording apparatus (e.g., a hard disk and so on) comprises (a) a recording unit adapted to record moving image data from an external device (e.g., a video camera and so on) on a recording medium; (b) a detection unit adapted to detect an occurrence of a dropout which occurs when the moving image data is recorded onto the recording medium; and (c) a transmitting unit adapted to transmit control data for notifying the presence and absence of a dropout to the external device.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: August 27, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Ohnishi
  • Patent number: 8521007
    Abstract: An information processing method includes the steps of analyzing moving-image content including image data and audio data, extracting scene metadata characterizing each scene for each scene constituting the moving-image content, deciding a reproduction mode of the moving-image content according to at least one of a reproduction environment of the moving-image content and setting information set by a user, generating loss recovery information for recovering loss information lost by changing the reproduction mode of the moving-image content using the scene metadata according to the decided reproduction mode, and outputting the generated loss recovery information in accordance with the moving-image content to be reproduced in the decided reproduction mode.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: August 27, 2013
    Assignee: Sony Corporation
    Inventors: Akifumi Kashiwagi, Hideki Noma, Tsugutomo Enami, Yoshihiro Manabe, Yuichi Abe, Itaru Kawakami
  • Patent number: 8427588
    Abstract: A TV receiver transmits video data from its tuner unit to its monitor unit via wireless transmission by using a channel shared with radar. When the tuner unit receives a program to be viewed, a recorder/player starts recording of the received program. When wireless transmission of the received program cannot be started on time at the program start time because of detecting an unused channel for wireless transmission, or when a radar wave in the shared channel is detected after starting wireless transmission and then wireless data transmission is interrupted, the recorder/player plays back on a time-shift basis the program recorded on the recording medium, and the program data played back is transmitted to the monitor unit. The TV receiver is capable of preventing the user from missing a program that he wants to view even when wireless data transmission is interrupted.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 23, 2013
    Assignee: Hitachi, Ltd.
    Inventor: Katsunobu Kimura
  • Patent number: 8340502
    Abstract: If a movie reproducing apparatus detects an error during reproduction of encoded movie data, based on management information that includes a recording position of an intra-picture coded picture included in the encoded movie data, the movie reproducing apparatus determines a position used when the error is recovered by searching for an intra-picture coded picture subsequent to a frame including data with the error as well as updates elapsed time information to be displayed based on a frame number of the searched intra-picture coded picture at the time the error is recovered.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tatsuya Higeta
  • Patent number: 8213770
    Abstract: An apparatus and method for storing digital broadcast data in a digital broadcast receiving terminal. If the digital broadcast receiving terminal enters a weak electric field strength region during reception of digital broadcast data, digital broadcast receiving terminal stops the process of receiving the digital broadcast data so as to check whether digital broadcast receiving terminal re-enters again into the strong electric field strength region. Then, if the digital broadcast receiving terminal re-enters the strong electric field region, the terminal shifts a TS value of a received digital broadcast data frame to the value obtained by adding a frame interval of the digital broadcast data frames to the TS value of the previous data frame that had been completely stored just before the digital broadcast receiving terminal entered the weak electric field strength region.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Young-Sik Lee, Dong-Jun Kum
  • Patent number: 8150234
    Abstract: A system and method for evaluating a video signal comprising a plurality of video frames. In the plurality video frames, the number of pixels changed from one frame to the next are analysed and each frame is identified as being a repeat if a set proportion of the pixels present in the current frame match those present in the previous frame. The resultant pattern of repeat frames in the video signal is recorded. The resultant pattern is then scanned to determine whether or not a given repeat frame is part of a temporally repetitive pattern and those repeat frames not determined to be part of the temporally repetitive pattern are identified. As result of the above, video quality assessment is able to treat these two types of temporal artefact separately so as to distinguish between the almost invisible regular frame loss and the visually disturbing irregular frame loss.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: April 3, 2012
    Assignee: British Telecommunications public limited company
    Inventor: Alexandre J Bourret
  • Patent number: 8086091
    Abstract: A data recording system includes a data acquiring apparatus that acquires data externally and a data recording apparatus that is communicably connected to the data acquiring apparatus via a network, and records data transmitted from the data acquiring apparatus. The data acquiring apparatus includes a data acquiring unit, a temporary storage unit, a transmitting-receiving unit, a communication-band management unit, and a control unit. The data recording apparatus includes a transmitting-receiving unit, a recording unit, and a control unit.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 27, 2011
    Assignee: Pioneer Corporation
    Inventor: Toshihiro Sotomaru
  • Patent number: 7881588
    Abstract: A reproducing apparatus includes: a reproducing unit for reproducing, from a recording medium on which main image for normal reproduction data and specific reproduction image data made up of a plurality of blocks each including first data and second data are recorded, the main image data and the specific reproduction image data; a detecting unit for detecting an error in the first data and an error in the second data in the respective blocks of the specific reproduction image data that is reproduced by the reproducing unit, independently; and an interpolation processing unit for interpolating independently the first data and the second data in which the error is detected by the detecting unit, by selectively using a plurality of interpolating methods.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 1, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shigeki Mochizuki