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:
Feb. 24, 2009
Filed:
Aug. 30, 2001
Michiya Takemoto, Tokyo, JP;
Toshikazu Yoshida, Tokyo, JP;
Hiroaki Mukai, Tokyo, JP;
Yoshihiro Asashiba, Tokyo, JP;
Hiroshi Ichibangase, Tokyo, JP;
Seiji Kozaki, Tokyo, JP;
Mitsuyoshi Iwasaki, Tokyo, JP;
Michiya Takemoto, Tokyo, JP;
Toshikazu Yoshida, Tokyo, JP;
Hiroaki Mukai, Tokyo, JP;
Yoshihiro Asashiba, Tokyo, JP;
Hiroshi Ichibangase, Tokyo, JP;
Seiji Kozaki, Tokyo, JP;
Mitsuyoshi Iwasaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A primary station equipment unit transmits, to a secondary station equipment unit, a message transmission enable signal granting transmission of a PST message from the secondary station equipment unit, when a predetermined period of time defined for transmission elapses after the primary station equipment unit transmitted a downstream PST message in a redundancy switching process corresponding to the secondary station equipment unit.