Patents by Inventor Erwin KOEFERL

Erwin KOEFERL 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).

  • Apparatus and method for detecting actuation of a switch
    Patent number: 11442553
    Abstract: The invention relates to a method and an apparatus with circuitry comprising at least one mechanical switch serving to open and/or close an electric contact and a processor unit serving to perform first query and a second query of a contact state of the contact, with the processor unit further serving to provide an output signal on the basis of information on a change of the contact state of the contact detected by means of the first and second queries, wherein the processor unit is configured to perform the second query after the first query with a timing so that the second query precedes an expected bounce of the contact.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 13, 2022
    Assignee: CHERRY GMBH
    Inventor: Erwin Koeferl
  • APPARATUS AND METHOD FOR DETECTING ACTUATION OF A SWITCH
    Publication number: 20190391669
    Abstract: The invention relates to a method and an apparatus with circuitry comprising at least one mechanical switch serving to open and/or close an electric contact and a processor unit serving to perform first query and a second query of a contact state of the contact, with the processor unit further serving to provide an output signal on the basis of information on a change of the contact state of the contact detected by means of the first and second queries, wherein the processor unit is configured to perform the second query after the first query with a timing so that the second query precedes an expected bounce of the contact.
    Type: Application
    Filed: June 21, 2018
    Publication date: December 26, 2019
    Inventor: Erwin KOEFERL