Resources Contact Us Home
Peripheral unit controller

Image Number 6 for United States Patent #4428044.

A synchronization scheme is used in a peripheral unit controller which consists of two duplicated units whose outputs are matched. In addition, each duplicated unit contains a pair of microprocessors whose outputs are also matched. The synchronization scheme allows each microprocessor to run its own diagnostics independently, and to synchronize itself with the other microprocessor of the pair. After the synchronization occurs in both microprocessor pairs, the duplicated units are synchronized. Synchronization is achieved by using a real-time clock and the interrupt structure of each microprocessor.

  Recently Added Patents
Anti-GITR antibodies
Processing autocomplete suggestions
Level shifter and method of using the same
Apparatus and method for information display of portable device
Clock face
Leadless integrated circuit packaging system and method of manufacture thereof
Digital processing method and system for determination of optical flow
  Randomly Featured Patents
Ignition system and components thereof
Stencil stamp unit
Dynamic infant nasal CPAP system and method
Robust multi-modal method for recognizing objects
Spinning reel
Cover for light and/or fragrance emitter
Magnetic recording medium and magnetic recording apparatus
Pay yourself first with user guidance
Strut mount
Methods and apparatus for twin beam computed tomography