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.

Date of Patent:
Sep. 17, 1991

Filed:

May. 16, 1990
Applicant:
Inventors:

Donald P Sturgis, Claremont, CA (US);

Michael Wolpert, Los Angeles, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
34082505 ; 34082501 ; 370 8512 ; 370 8515 ;
Abstract

A loop transmission system includes a plurality of micronodes and a central processor operative as a supervisory station linked by two loop transmission lines each capable of transmitting in either direction around the loop. The central processor is adapted to transmit, in alternative cycles in a first then in a second direction about the loop. Each micronode is adapted to respond in a direction opposite to the direction of the command transmission. The system is operative to provide alternative transmission paths in opposite directions around the loop such that if a fault occurs, the system retransmits the prior command in the opposite direction during a next cycle of operation. At most, a one cycle delay occurs, yet the system is inexpensive and easy to install.


Find Patent Forward Citations

Sturgis, Donald. (1991). Loop communication system (U.S. Patent No. 5049871). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5049871

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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