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.

Date of Patent:
Sep. 20, 2005

Filed:

May. 02, 2003
Applicants:

Chun Hui Huang, Hsinchu, TW;

Chih Lung Liu, Hsinchu, TW;

Inventors:

Chun Hui Huang, Hsinchu, TW;

Chih Lung Liu, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F013/14 ;
U.S. Cl.
CPC ...
Abstract

The present invention provides a transmission interface conversion device, which can first convert the communication signal of a master equipment controller and then connect to a plurality of slave devices through a pair of transmission lines so as to perform data transmission and power supply synchronously. The transmission interface conversion device includes: a conversion interface, formed by at least one repeater circuit, which transmits data by half-duplex; a signal inspector, which inspects whether a signal has been transmitted to the conversion interface; a control unit, to determine the orientation and the operation method of the repeater circuit by using the signal that has been inspected by the signal inspector; and a voltage adjustor, to supply needed electric power to all the above-mentioned circuits. The invention has features of being installed and maintained easily as well as being able to reduce the cost of cabling.


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