Patents by Inventor Michael Marhoefer

Michael Marhoefer 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).

  • Patent number: 8966568
    Abstract: A method and a device for data processing are provided comprising a first instance comprising at least one local trusted unit (LTU) and a local trust manager (LTM), the method comprising the step: The local trust manager provides a policy related information to the at least one local trusted unit and/or to a second instance.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 24, 2015
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Joerg Abendroth, Michael Marhoefer, Manfred Schaefer
  • Publication number: 20110161234
    Abstract: An ordering scheme is described, for example an ordering and payment scheme for mobile communication devices. The ordering scheme enables an Internet shop or another service provider to issue binding offers to a mobile communication device or the like and to receive an acceptance of the offer from the mobile device. The acceptance is encrypted using a private key of mobile device and the offer may be encrypted using a private key of the service provider. The service provider liaises with a payment broker and a charging system for controlling the transfer of funds from the user to the service provider. An identity management system may be provided to control access to the modules of the ordering scheme.
    Type: Application
    Filed: June 15, 2009
    Publication date: June 30, 2011
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Jorge Cuellar, Werner Dittmann, Matthias Franz, Michael Marhoefer, Achill Andreas Schirilla, Konstantin Weber
  • Publication number: 20110131627
    Abstract: A method and a device for data processing are provided comprising a first instance comprising at least one local trusted unit (LTU) and a local trust manager (LTM), the method comprising the step: The local trust manager provides a policy related information to the at least one local trusted unit and/or to a second instance.
    Type: Application
    Filed: April 29, 2008
    Publication date: June 2, 2011
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Joerg Abendroth, Michael Marhoefer, Manfred Schaefer
  • Patent number: 4651076
    Abstract: A power maximizing circuit for a stepper motor employing a switching regulator that conducts current to a variable voltage supply until a predetermined voltage is attained. The predetermined voltage is varied to achieve resonance compensation.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: March 17, 1987
    Assignee: Bodine Electric Company
    Inventors: Norman E. Oltendorf, Michael Marhoefer
  • Patent number: 4540928
    Abstract: A closed loop resonance compensation method and circuit for a stepper motor stabilizes the stepper motor control system while operating in the mid-frequency range. The stepper motor stabilization method and means corrects for mid-frequency resonance errors by deriving a velocity error signal from the total current in the motor windings and uses this signal, through feedback to the source of clock pulses, to correct the short term rotor velocity with respect to the stator field.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: September 10, 1985
    Assignee: Bodine Electric Company
    Inventor: Michael Marhoefer