Patents by Inventor Folke Ojemann

Folke Ojemann 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).

  • Optical sensor and method of suppressing interference light therefor
    Patent number: 6927385
    Abstract: An optical sensor includes a light transmitter for transmitting pulsed light signals and a light receiver for receiving them. In order to suppress the effects of interfering noise light, the light signals are transmitted according to a specified pattern including pulses in packages separated from each other by a specified interval, the pulses within each of the packages following one another with a specified carrier frequency. Groups each including two or more such pulse packages may be employed. The light receiver converts a received light signal into an electrical signal and directly thereafter passes the electrical signal through a bandpass filter with a pass band including this carrier frequency.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: August 9, 2005
    Assignee: Omron Corporation
    Inventors: Hubert Adamietz, Yasunobu Sakai, Martin Schurer, Folke Ojemann, Jochen Betz, Gerold Stauss
  • Optical sensor and method of suppressing interference light therefor
    Publication number: 20020167706
    Abstract: An optical sensor includes a light transmitter for transmitting pulsed light signals and a light receiver for receiving them. In order to suppress the effects of interfering noise light, the light signals are transmitted according to a specified pattern including pulses in packages separated from each other by a specified interval, the pulses within each of the packages following one another with a specified carrier frequency. Groups each including two or more such pulse packages may be employed. The light receiver converts a received light signal into an electrical signal and directly thereafter passes the electrical signal through a bandpass filter with a pass band including this carrier frequency.
    Type: Application
    Filed: March 27, 2002
    Publication date: November 14, 2002
    Inventors: Hubert Adamietz, Yasunobu Sakai, Martin Schurer, Folke Ojemann, Jochen Betz, Gerold Stauss