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:
Nov. 10, 2009
Filed:
Jan. 16, 2007
Masaki Mori, Nukata-gun, JP;
Tadatoshi Asada, Anjo, JP;
Susumu Ueda, Okazaki, JP;
Hirokazu Toyoda, Nukata-gun, JP;
Masaki Mori, Nukata-gun, JP;
Tadatoshi Asada, Anjo, JP;
Susumu Ueda, Okazaki, JP;
Hirokazu Toyoda, Nukata-gun, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A noise free transceiver circuit includes a communication line, a power source line, a ground line, an output transistor having output terminals connected between the communication line and the ground line for outputting a communication signal to the communication line, a first circuit for applying a trapezoidal signal to the input terminal of the output transistor to turn on in synchronism with a transmission signal and a second circuit for turning off the output transistor when the level of the transmission signal is high. The output transistor is turned off when the communication signal is outputted. Therefore, noises of the power line are shut out of the output transistor.