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:
Sep. 29, 1998
Filed:
Apr. 02, 1996
Shinichi Sasagawa, Miyagi-ken, JP;
Shin Kinouchi, Miyagi-ken, JP;
Seishi Namioka, Miyagi-ken, JP;
Nobuyuki Ichimiya, Miyagi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A signal transmission apparatus including a main unit having a signal transmission terminal, and one or more sub units (or repeaters) each having first and second signal transmission terminals. A loop connection line is provided between the main unit and a first sub unit, and additional loop connection lines are provided between subsequent pairs of sub units to convey signals from the main unit to each of the sub units, and from each of the sub units to the main unit. The main unit includes a controller, a signal generator for generating and sending a first signal to one of the sub units, and a signal processor for processing a second signal returned from one of the sub units in response to the first signal. Each of the sub units includes a controller, a destination signal determination section, and a signal transfer section for selectively capturing and transferring a signal according to its destination address.