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:
Aug. 09, 1988
Filed:
Mar. 17, 1987
Masahiro Inoue, Kanagawa, JP;
Rieko Yoshikawa, Kanagawa, JP;
Yoshiji Minagawa, Kanagawa, JP;
Noriyuki Kushiro, Kanagawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A gateway circuit which exchanges information between a leased-line information transmission system and a power line carrier information transmission system includes a control circuit which receives and formats information transmitted over the leased-line information system and a separate control circuit which receives and formats information received over the power line carrier system. The formatted information is provided to a third control circuit which buffers the information and converts between the leased-line format and the power line carrier format to enable signal exchange between the two information transmission systems. The general control circuit responds to load control commands generated by manual switches located on the control unit and to load control commands forwarded over the leased-line system. The general control unit also contains storage elements which maintain the operating state of electrical loads on the power line and only transmit control information when an operating state must be changed.