Resources Contact Us Home
Peripheral unit controller

Image Number 8 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
Measurement protocol for a medical technology apparatus
Systems and methods for tracking power modulation
Actuator, actuator structure and method of manufacturing actuator
Preparation and its use of derivatization reagent for detecting L-carnitine or D-carnitine
Herbal composition for the treatment of wound healing, a regenerative medicine
Enzymatic demethylation of flavonoids
Device for data routing in networks
  Randomly Featured Patents
Magnetic damping system to limit blade tip vibrations in turbomachines
Managing network traffic flow
Shelf and cabinet assembly
Dual stub axle air spring suspension with high-axle hydraulic lift
Method for over-expression and rapid purification of biosynthetic proteins
Acoustic emission detector and controller
Method of making aluminum sheet product and product therefrom
Flow stabilized, retractable seal, double-block and bleed plug valve
Preparation of flat items for automatic dispensing
Heart pacer lead wire with break-away needle