Patents by Inventor Alain Poirel

Alain Poirel 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).

  • Telecommunication apparatus comprising a peripheral recognition device
    Patent number: 6161027
    Abstract: A main apparatus has power supply terminals for supplying power to a peripheral and a recognition device for recognizing various types of peripherals by simply connecting said peripheral between said terminals and for selecting a power supply voltage as a function of the impedance of said peripheral between these terminals.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: December 12, 2000
    Assignee: U.S. Philips Corporation
    Inventor: Alain Poirel
  • Telecommunication equipment comprising a magnetic device for recognizing peripherals
    Patent number: 6088448
    Abstract: An apparatus for connecting to a number of peripheral devices has a detection device for detecting coupling of a particular one of the peripheral devices to the apparatus. The detection device has a first magnetic means and the particular one of the peripheral devices has a second magnetic means for cooperating with the first magnetic means. The first and second means form a unique pair for uniquely recognizing the particular one of the peripheral devices among the peripheral devices.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: July 11, 2000
    Assignee: U.S. Philips Corporation
    Inventor: Alain Poirel