Patents by Inventor Marc E. C. Lambrechts

Marc E. C. Lambrechts 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: 6982699
    Abstract: An input device (302,316) includes a plurality of magnetic sensors (104,108,112) for measuring the components (106,110,114) of a magnetic field (102) at the position of the input device (302). The magnetic field may be the geomagnetic field of the earth or a magnetic field generated by a local magnet (602). The data of at least two (104,108) of the sensors are used for calculating a first signal (208) for controlling the translation movement of a graphical element (204) on a display (202).
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: January 3, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Kars-Michiel H. Lenssen, Marc E. C. Lambrechts, Gerardus J. J. Vos
  • Patent number: 6411280
    Abstract: An input device (200) comprises a number of distinct touch areas (230, 232), i.e. areas which are normally in contact with a user while manipulating the device. At least two of such touch areas (230, 232) have corresponding tactual cue generating units (240, 242) for conveying tactual cues via the touch areas (230, 232) to the user. In an application in which the input device (200) is used, the tactual cues can convey location or direction information relating to the application, by independently operating the tactual cue generating units (240, 242).
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: June 25, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jan W. Aarts, Marc E. C Lambrechts, Stefaan M. M. Note
  • Patent number: 6160538
    Abstract: A method of encoding manipulations of a multidimensional input device, such as a mouse, into data to be communicated to a data processing apparatus. Sensors in the input device detect manipulations of a member of the input device with respect to an X-axis and a Y-axis. From the sensor data, a direction and a magnitude of the manipulation is derived. These intermediate quantities are communicated to the data processing apparatus instead of the X- and a Y-values themselves. In the data processing apparatus, a decoder decodes the intermediate quantities into a further pair of X-and Y-values. The intermediate values more adequately represent the manipulations. Therefore, in input devices having a limited power budget, like TV remote controls and other wireless input devices, the method achieves a higher performance.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 12, 2000
    Assignee: U.S. Philips Corporation
    Inventor: Marc E. C. Lambrechts