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:
Feb. 02, 2016
Filed:
Nov. 28, 2011
Hiroaki Hoshika, Hitachinaka, JP;
Takeo Hosokawa, Hitachinaka, JP;
Hiroaki Hoshika, Hitachinaka, JP;
Takeo Hosokawa, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
Radiated noises of an output pulse signal are reduced. A pulse signal outputting apparatus outputs a pulse signal generated by a modulating means outside, the modulating means includes a calculation circuit that has a pull-up resistor which is connected to power supply inside, a general-purpose input/output terminal that is connected to the calculation circuit, input/output selecting means for selecting whether the general-purpose input/output terminal is used as an input terminal or an output terminal, pull-up resistor connecting means for connecting or disconnecting the pull-up resistor and the general-purpose input/output terminal, and a pull-up resistor connection control circuit that performs control so that the pull-up resistor connecting means is operated when the general-purpose input/output terminal is selected as the input terminal, the general-purpose input/output terminal is selected as the input terminal by the input/output selecting means when a transition of an output signal level of the pulse signal starts, the pull-up resistor and the general-purpose input/output terminal are connected by the pull-up resistor connecting means when the general-purpose input/output terminal is selected as the input terminal, and the general-purpose input/output terminal is switched to the output terminal by the input/output selecting means after a certain period of time has passed.