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:
Nov. 15, 2016
Filed:
Oct. 17, 2014
Raydium Semiconductor Corporation, Hsinchu, TW;
Po-Cheng Lin, Hsinchu, TW;
Raydium Semiconductor Corporation, Hsinchu County, TW;
Abstract
An analog data transmitter applied in a LCD apparatus includes an output pad, a channel operational amplifier, an initial switch, an auxiliary switch module, and a detection unit. The detection unit selectively starts a first switch unit or a second switch unit of the auxiliary switch module according to a pulse width modulation corresponding to a data conversion amplitude of an output data signal outputted from the output pad. During a period of the first switch unit or the second switch unit operating from a first time to a second time, transistors in an output stage of the channel operational amplifier operate in a linear region of smaller resistance instead of a saturation region of larger resistance, and the initial switch is turned-off during the period and not started until the second time. The length of the period corresponds to the pulse width modulation.