Patents by Inventor Knut Hovring Riisnaes

Knut Hovring Riisnaes 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).

  • Device and method for generating digital signals each coding a value of an analog signal
    Patent number: 6836230
    Abstract: A number P of single analog inputs receive an analog signal having a frequency F from a sensor electrode. A single digital output sequentially generates a number P of first digital signals coding the amplitude values of the analog signal. A first multiplexer with a number M of multiple analog inputs with a number N of single analog inputs receives the analog signal and outputs the analog signal on a multiple analog output with a number N of second single analog outputs. A phase sensitive amplifier with a number N of single analog inputs and a number N of single analog outputs is connected to the second single analog outputs of the fist multiplexer. A second multiplexer with a number N of single analog inputs and a single analog output is connected to the single analog outputs of the phase sensitive amplifier.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: December 28, 2004
    Assignees: STMicroelectronics S.A., Idex ASA
    Inventors: Laurent Le Pailleur, Knut Hovring Riisnaes, Ovidiu Vermesan
  • Device and method for generating digital signals each coding a value of an analog signal
    Publication number: 20040027263
    Abstract: A number P of single analog inputs receive an analog signal having a frequency F from a sensor electrode. A single digital output sequentially generates a number P of first digital signals coding the amplitude values of the analog signal. A first multiplexer with a number M of multiple analog inputs with a number N of single analog inputs receives the analog signal and outputs the analog signal on a multiple analog output with a number N of second single analog outputs. A phase sensitive amplifier with a number N of single analog inputs and a number N of single analog outputs is connected to the second single analog outputs of the fist multiplexer. A second multiplexer with a number N of single analog inputs and a single analog output is connected to the single analog outputs of the phase sensitive amplifier.
    Type: Application
    Filed: April 22, 2003
    Publication date: February 12, 2004
    Inventors: Laurent Le Pailleur, Knut Hovring Riisnaes, Ovidiu Vermesan