The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1982
Filed:
Feb. 05, 1980
Arliss E Whiteside, Royal Oak, MI (US);
Morris D Freedman, Southfield, MI (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
The invention is a synchronizer for synchronizing the operation of the computers in a multiple computer system. One synchronizer is associated with each computer, and it regularly generates signals to initiate the operations in its own computer which must be synchronized among the computers. The synchronizer comprises a start synchronizer module (458), a sampling data table including a sampling timer (460), a check sampling timer module (464), and a find sampling number agreement module (466). The sampling period timer times a sampling period having a predetermined time interval. At the end of each sampling period, the check sampling timer module sends a sampling number message containing a new sampling number. The find sampling number agreement module (466) generates a voted sampling number when sampling number messages received from like synchronizers in a predetermined number of computers contain the same sampling number. When a voted sampling number is obtained, the synchronizer generates a signal initiating in its own computer the operations which are to be synchronized among the computers. Also, the remaining time in the sampling period timer is adjusted to synchronize its period with like sampling period timers in the other computers. When no voted sampling number is obtained, the start synchronizer module (458) is enabled to restart the synchronizer.