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:
Jun. 11, 2013
Filed:
Jun. 28, 2011
Takashi Komiyama, Tokyo, JP;
Kentaro Kitahori, Tokyo, JP;
Yoshinori Monaka, Tokyo, JP;
Azbil Corporation, Tokyo, JP;
Abstract
Channels, which are assigned to each individual lower-level device that are the input/output destinations for HART communications signals that are produced through superimposing, onto a 4 to 20 mA DC signal, digital signals that have been converted into 1200 Hz and 2200 Hz frequency signals; a first controlling portion for controlling communications with a higher-level device; and HART communications portions, provided for each individual channel, for extracting frequency signals from the HART communications signals received through the channels, and for sending to the controlling portion digital signals corresponding to the frequency signals, are provided; where the first controlling portion sends, to the higher-level device, the digital signals received from the individual HART communications portions.