Patents by Inventor Friedrich Bollmann

Friedrich Bollmann 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).

  • DYNAMICALLY ENABLING A SECURITY FEATURE OF A WIRELESS COMMUNICATION DEVICE BASED ON ENVIRONMENTAL CONTEXT
    Publication number: 20230199496
    Abstract: Wireless communication device and methods for operating the same. One wireless communication device includes an electronic processor configured to operate the wireless communication device in a first security mode of a plurality of available security modes.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 22, 2023
    Inventors: Melanie King, Friedrich Bollmann, Clarence Coffee, Divya Ramamoorthy, David Weygandt
  • Communication system and method for controlling access to portable radio public safety service applications
    Patent number: 11653193
    Abstract: A communication system and method are provided for authenticating a portable radio from a plurality of shared portable radios. The authentication controls access to user personal profiles and public safety service applications associated with a public safety agency. A firearm having a firearm user ID stored therein, communicates the firearm user ID over short range communications to the portable radio. The firearm user ID may be used for single factor authentication or combined with a PIN entry for multi-factor authentication.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 16, 2023
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Melanie King, Clarence Kevin Coffee, Friedrich Bollmann, Divya Ramamoorthy, David Weygandt
  • Battery protection circuit with isolation device failure detection
    Patent number: 11502520
    Abstract: A battery module includes a first load terminal, a second load terminal, a first charger terminal, a charger enable terminal, and a battery having a first battery terminal coupled to the first load terminal and a second terminal coupled to the second load terminal. A first isolation device is coupled between the first load terminal and the first charger terminal and has an enable terminal coupled to the charger enable terminal. A first protection circuit includes a second isolation device coupled between the second battery terminal and the second load terminal and a first sensing circuit configured to enable the second isolation device responsive to detecting a failure of the first isolation device.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 15, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Muhamad Ridzuan Azizan, Abdul Rashid Abdul Halim, Friedrich Bollmann, Kow Chee Chong, Jeevan Kanesalingam, Macwien Krishnamurthi, Chen Kok Yeoh
  • BATTERY PROTECTION CIRCUIT WITH ISOLATION DEVICE FAILURE DETECTION
    Publication number: 20210265847
    Abstract: A battery module includes a first load terminal, a second load terminal, a first charger terminal, a charger enable terminal, and a battery having a first battery terminal coupled to the first load terminal and a second terminal coupled to the second load terminal. A first isolation device is coupled between the first load terminal and the first charger terminal and has an enable terminal coupled to the charger enable terminal. A first protection circuit includes a second isolation device coupled between the second battery terminal and the second load terminal and a first sensing circuit configured to enable the second isolation device responsive to detecting a failure of the first isolation device.
    Type: Application
    Filed: February 24, 2020
    Publication date: August 26, 2021
    Inventors: Muhamad Ridzuan Azizan, Abdul Rashid Abdul Halim, Friedrich Bollmann, Kow Chee Chong, Jeevan Kanesalingam, Macwien Krishnamurthi, Chen Kok Yeoh