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:
Oct. 18, 1988
Filed:
Sep. 17, 1986
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
The present invention relates to a loop network arranged by loop-connecting a control station and a number of substations through a main transmission path where at least one of the substations comprises a branch station inserting and coupling another station into the main transmission path as a lobe or subloop. In order to prevent an out-of-step condition of the main transmission path, resulting from a failure in the lobe or subloop, the branch station includes a frame buffer for normally selecting the signal from the lobe or subloop and selecting the signal from the main transmission path during detection of a failure and on a bypass command, and for accumulating the selected signal in units of a single frame, and a mechanism for supplying the accumulated signal to the main transmission path.