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, 2019
Filed:
Aug. 23, 2017
Applicant:
Rohm Co., Ltd., Ukyo-ku, Kyoto, JP;
Inventor:
Hirotoshi Usui, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/045 (2006.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/045 (2013.01);
Abstract
A control circuit for a resistive film touch panel is provided. The control circuit comprises a first pin through a fifth pin. An A/D converter circuit is capable of selecting at least one from among the first pin through the fourth pin, and of converting the voltage at at least the one pin thus selected into a digital value. A bias circuit is capable of selectively generating a combination of electrical states including a first predetermined voltage state, a second predetermined voltage state, and a high-impedance state. A logic circuit processes an output signal of the A/D converter circuit.