Patents by Inventor Alexander D. Raji

Alexander D. Raji 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: 9807391
    Abstract: Methods, systems, and computer readable media can be operable to reduce the number of video streams or increase the quality of delivered video with the same number of video streams in a multiple bitrate video encoding. Multiple video resolutions and/or frame rates can be combined into a single stream. In embodiments, optimal segments from a plurality of input streams can be selected for inclusion in an output stream based upon a range of acceptable quantization parameter values for the output stream and a quality characteristic associated with the optimal input stream.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 31, 2017
    Assignee: ARRIS Enterprises LLC
    Inventors: Ramesh V. Panchagnula, Alexander D. Raji
  • Publication number: 20160255348
    Abstract: A method of encoding digital content is provided that allows for adaptive joint bitrate allocation that allocates bits for audio and video. The method includes: determining an overall transport stream bitrate, determining a target audio bitrate for each audio stream based on their complexity, determining a portion of the overall transport stream bitrate available for video streams by subtracting the sum of the target audio bitrates from the overall transport stream bitrate, allocating a target video bitrate for each video streams out of the portion of the overall transport stream bitrate available for video streams, encoding audio streams at the target audio bitrates, encoding video streams at the target video bitrates, and combining the audio streams and video streams with a multiplexor into a transport stream.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventors: Ramesh V. Panchagnula, Alexander D. Raji
  • Publication number: 20160182906
    Abstract: Methods, systems, and computer readable media can be operable to reduce the number of video streams or increase the quality of delivered video with the same number of video streams in a multiple bitrate video encoding. Multiple video resolutions and/or frame rates can be combined into a single stream. In embodiments, optimal segments from a plurality of input streams can be selected for inclusion in an output stream based upon a range of acceptable quantization parameter values for the output stream and a quality characteristic associated with the optimal input stream.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 23, 2016
    Inventors: Ramesh V. Panchagnula, Alexander D. Raji
  • Patent number: 8731216
    Abstract: Systems and methods of this disclosure can operate to provide audio level normalization in multimedia streams. In some implementations, audio level normalization can include partially decoding audio frames included in a multimedia stream, calculating an average energy level of the partially decoded frames, comparing the average energy level of the partially decoded frames to a nominal energy level, modifying a dialnorm setting associated with the multimedia stream, and reencoding the partially decoded audio frames for inclusion as a modified audio stream corresponding to the video stream.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: May 20, 2014
    Assignee: AARIS Enterprises, Inc.
    Inventors: Santhana Chari, Alexander D. Raji
  • Patent number: 8654849
    Abstract: Methods and systems for integrated transcoding on a plurality of data channels to convert one or more data channels from an incoming encoding format to an outgoing encoding format are disclosed.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 18, 2014
    Assignee: ARRIS Enterprises, Inc.
    Inventors: Jungfeng Bai, John Hartung, Sam John, Santhana Krishnamachari, Tse Hua Lan, Joe Monaco, Ramesh Panchagnula, Alexander D. Raji
  • Publication number: 20110096846
    Abstract: Methods for performing ad insertion prior to performing statistical multiplexing on one or more digital video streams including programs are disclosed. Select coded frames of a program and an advertisement are decoded and re-encoded at a predetermine bit rate to obtain a revised program representing the original program with the advertisement inserted at a select time.
    Type: Application
    Filed: September 27, 2010
    Publication date: April 28, 2011
    Inventors: Santhana Chari, Alexander D. Raji, Junfeng Bai
  • Publication number: 20100158126
    Abstract: Methods and systems for integrated transcoding on a plurality of data channels to convert one or more data channels from an incoming encoding format to an outgoing encoding format are disclosed.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Applicant: ARRIS GROUP, INC.
    Inventors: Junfeng Bai, John Hartung, Sam John, Santhana Krishnamachari, Tse Hua Lan, Joe Monaco, Ramesh Panchagnula, Alexander D. Raji