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.:

US 7956779 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 07, 2011

Filed:

Jul. 30, 2009
Applicants:

Yi-jan Emery Chen, Taipei, TW;

Pang-jung Liu, Taipei, TW;

Inventors:

Yi-Jan Emery Chen, Taipei, TW;

Pang-Jung Liu, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A non-linear interpolation circuit includes current interpolation units and an I-V converter. The current interpolation units receive an operating voltage corresponding to digital image data and corresponding reference voltages to generate corresponding operating currents. When the operating voltage changes, at least one of the corresponding current interpolation units generate the corresponding operating current, and the operating currents with respect to the operating voltage are superimposed to form an interpolation current. The I-V converter converts the interpolation current into an interpolation voltage. An interpolation current generating circuit and a method for converting digital data into analog data are also disclosed herein.


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