Patents by Inventor Rogatus Hubertus Hermanus Wester

Rogatus Hubertus Hermanus Wester 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).

  • Robust method for achieving audio/video synchronization in MPEG decoders in personal video recording applications
    Patent number: 7315622
    Abstract: A receiver for receiving an MPEG encrypted transport stream and outputting audio and video signals comprising: a decryptor adapted to receive and decrypt the encrypted transport stream; a de-multiplexer adapted to convert the decrypted transport stream to audio and video elementary streams and to change the values in presentation time stamp and decoding time stamp fields of each packet of the audio and elementary streams to match the time of a receiver record clock; a storage sub-system adapted to store the audio and the video elementary streams and to change the values in the presentation time stamp and decoding time stamp fields of each header of the audio and video elementary streams to compensate for the amount of time the audio and video elementary streams are stored; and audio and video decoders to decode the audio and video elementary streams respectively.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: January 1, 2008
    Assignee: NXP B.V.
    Inventors: Murali Mani, Ramanathan Meenakshisundaram, Rogatus Hubertus Hermanus Wester, Auke van der Schaar
  • Robust method for achieving audio/video synchronization in MPEG decoders in personal video recording applications
    Publication number: 20040001591
    Abstract: A receiver for receiving an MPEG encrypted transport stream and outputting audio and video signals comprising: a decryptor adapted to receive and decrypt the encrypted transport stream; a de-multiplexer adapted to convert the decrypted transport stream to audio and video elementary streams and to change the values in presentation time stamp and decoding time stamp fields of each packet of the audio and elementary streams to match the time of a receiver record clock; a storage sub-system adapted to store the audio and the video elementary streams and to change the values in the presentation time stamp and decoding time stamp fields of each header of the audio and video elementary streams to compensate for the amount of time the audio and video elementary streams are stored; and audio and video decoders to decode the audio and video elementary streams respectively.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Murali Mani, Ramanathan Meenakshisundaram, Rogatus Hubertus Hermanus Wester, Auke Sjoerd van der Schaar