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:
Oct. 22, 2019
Filed:
Jun. 06, 2014
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Takuma Nishimoto, Tokyo, JP;
Yutaka Igarashi, Tokyo, JP;
Yusaku Katsube, Tokyo, JP;
Kengo Imagawa, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Amplification of a signal by a small circuit size and reduction of a power are achieved. A current controlling current source unitchanges an outputting current based on a transition time setting signal tp. A current controlling current source unitchanges a drawing current based on a transition time setting signal tn. An amplitude control unitchanges a power source voltage supplied to the current controlling current source unitand changes amplitude of a voltage generated by a current outputted from the current controlling current source unit, based on amplitude setting signal ap. An amplitude control unitchanges a power source voltage supplied to the current controlling current source unitand changes amplitude of a voltage generated by the current drawn by the current controlling current source unit, based on amplitude setting signal an. The buffer unitdrives a load in accordance with the current outputted from the current controlling current source unitand the current drawn from the current controlling current source unit