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:
Jan. 16, 2001
Filed:
Jan. 23, 1998
Yoshiyuki Kokuhata, Nara, JP;
Masahiro Takahashi, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A voltage generation circuit includes a potential line for a voltage value VA, a group of potential lines constituted by potential lines for voltage values V,VM and VS, respectively, a potential line for a voltage value VB, a first capacitor, a second capacitor having a capacitance equal to the capacitance of the first capacitor, a first switch for selectively connecting the first terminal of the first capacitor to the potential line and one potential line out of the group of potential lines, and a second switch for selectively connecting a second terminal of the first capacitor to the potential line that applies a potential symmetric to the potential of one predetermined potential line out of the group of potential lines and to the first terminal of the second capacitor. The second capacitor includes first and second terminals connected to the potential line for VB and the one potential line out of the group of the potential lines, respectively. Connection switching of the first and second switches is controlled so that the first and second capacitors are charged and discharged in a complementary manner.