Patents by Inventor Engelbertus Petrus Gerardus Maria Kramer

Engelbertus Petrus Gerardus Maria Kramer 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).

  • Record carrier with watermark
    Patent number: 7801327
    Abstract: A record carrier includes a pattern of substantially parallel tracks for storing data in the form of marks, in which the data is encoded by a channel code. A watermark is provided by controlling the parameter of the channel code so as to introduce a predetermined run length distribution in the marks on the record carrier. Brightness differences are caused by introducing this run length distribution.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: September 21, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gertjan Yntema, Antonius Jacobus Johannes Werner, Engelbertus Petrus Gerardus Maria Kramer
  • Record carrier with watermark
    Patent number: 7263201
    Abstract: A record carrier includes a pattern of substantially parallel tracks for storing data in the form of marks, in which the data is encoded by a channel code. A watermark is provided by controlling the parameter of the channel code so as to introduce a predetermined run length distribution in the marks on the record carrier. Brightness differences are caused by introducing this run length distribution.
    Type: Grant
    Filed: November 12, 2001
    Date of Patent: August 28, 2007
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gertjan Yntema, Antonius Jacobus Johannes Werner, Engelbertus Petrus Gerardus Maria Kramer
  • Record carrier with watermark
    Publication number: 20030172276
    Abstract: The invention relates to a record carrier (1) comprising a pattern of substantially parallel tracks (2) for storing data in the form of marks, in which the data is encoded by means of a channel code. The record carrier further includes a watermark (3) which is provided by controlling the parameter of the channel code so as to introduce a predetermined run length distribution in the marks on the record carrier. Brightness differences are caused by introducing this run length distribution. The invention also relates to a device for reading a record carrier, a method of providing a watermark on the record carrier, and a device for providing a watermark on a record carrier.
    Type: Application
    Filed: July 10, 2002
    Publication date: September 11, 2003
    Inventors: Gertjan Yntema, Antonius Jacobus Johannes Werner, Engelbertus Petrus Gerardus Maria Kramer