Patents by Inventor Thomas Kirchlinde

Thomas Kirchlinde 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).

  • Remote-controlled access control device, in particular for a motor vehicle, and portable transponder which is configured for it
    Patent number: 6577227
    Abstract: A remote-controlled access control device includes a stationary transceiver device with a triggering device and a portable transponder. The stationary transceiver device transmits an interrogation code signal in response to the triggering device being activated. The portable transponder receives the interrogation code signal and has a manually activatable activation element. The portable transponder generates a code signal and transmits, together with the code signal, information indicating whether the code signal is generated in response to the interrogation code signal or in response to the activation element being activated. The stationary transceiver device receives the information together with the code signal and generates an unlocking signal based on an evaluation of the code signal with the information indicating whether the code signal is generated in response to the interrogation code signal or in response to the activation element being activated.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: June 10, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Kirchlinde, Thomas Röhrl, Wolfgang Piesch