Patents by Inventor Alan M. Rooke

Alan M. Rooke 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).

  • System for serial peripheral interface with embedded addressing circuit for providing portion of an address for peripheral devices
    Patent number: 6304921
    Abstract: A microcontroller (12) provides the address bit and device data start bits for the first peripheral device (PD) in a string of PDs (20-24 or 30-34). Each PD includes a string of flipflops (72-86). If the complete address matches, then the first PD (20) shifts out the device data start bits for the next PD (22) in that string. The address bit for the next PD is provided by the pull-up or pull-down device (52) hard-wired on the SI of the next PD. The device data start bits for the next PD are provided by right-most flipflops of the previous PD. If the address bit and device data start bits match the contents of the device registers of next PD, then that next PD enables SYSCLK to shift out the contents of flipflops.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: October 16, 2001
    Assignee: Motorola Inc.
    Inventor: Alan M. Rooke
  • Series parallel heated oxygen sensor heater control
    Patent number: 5637786
    Abstract: This invention teaches a series parallel heated oxygen sensor control wherein a parallel portion is used to apply heat to the oxygen sensor during warm-up and a series portion is used to apply heat to the oxygen sensor afterwards so that about one quarter of the amount of power is applied after warm-up.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Ford Motor Company
    Inventors: David C. Weber, Alan M. Rooke