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:
Nov. 24, 1987
Filed:
Dec. 17, 1984
David L Kirk, Phoenix, AZ (US);
Honeywell Inc., Phoenix, AZ (US);
Abstract
Method and apparatus for synchronizing to a desired degree of accuracy the timing subsystems of the modules of a distributed local area network by the master and the slave. Each module includes a Module Central Processing Unit (MCPU) and a source of clock signals. Each MCPU includes a digital timing subsystem which produces a fine timing, a synchronization, and a real time timing signal. Two of the timing subsystems are provided with driver circuits one designated as the master and the other as the slave. Each timing subsystem, alternately receives the timing frames transmitted over the two cables of the network by the master and the slave. All timing subsystems other than the master, synchronize with the master. The slave transmits its timing frame in synchronization with the master.