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:
Feb. 10, 2009
Filed:
Mar. 27, 2007
Cheol-min Kim, Seoul, KR;
Il-gon Kim, Seoul, KR;
Gi-chang Lee, Seoul, KR;
Yang-hwa Choi, Yongin-si, KR;
Oh-kyong Kwon, Seoul, KR;
Cheol-Min Kim, Seoul, KR;
Il-Gon Kim, Seoul, KR;
Gi-Chang Lee, Seoul, KR;
Yang-Hwa Choi, Yongin-si, KR;
Oh-Kyong Kwon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A digital-to-analog converter (DAC) includes a decoder unit for receiving an external digital data signal operating over a first predefined voltage range (i.e., 0-5V); a resistor array for generating a plurality of gray voltages defined across a second voltage range that is substantially wider than the first predefined voltage range, and a voltage selecting unit for selecting one of the gray voltages based on an output of the decoder unit, wherein the decoder unit includes a plurality of decoder stages and first and second boost circuits for generating output signals operating over a third voltage range (i.e., 0-7V) that is substantially wider than the first predefined voltage range while not requiring an additional power supply for producing voltages of the third voltage range (i.e., 0-7V).