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:
Mar. 31, 2009
Filed:
Jan. 23, 2007
Yohtaro Umeda, Kanagawa, JP;
Atsushi Kanda, Kanagawa, JP;
Yohtaro Umeda, Kanagawa, JP;
Atsushi Kanda, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A driver circuit includes first and second three-terminal active elements, and first and second delay units. The first and second three-terminal active elements are series-connected. Each of the first and second three-terminal active elements has an amplification function and first, second, and third electrodes. The second and third electrodes of each three-terminal active element are series-connected between the first and second potentials. The first and second delay units receive the same input signal. The outputs of the first and second delay units are respectively connected to the first electrodes of the first and second three-terminal active elements. The delay amount of the second delay unit is larger than that of the first delay unit. The delay amount of the first delay unit is a finite value including zero.