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. 04, 2008
Filed:
Jun. 03, 2004
Applicants:
Wang-rae Kim, Gyeonggi-Do, KR;
Kwang-eun Ahn, Gyeonggi-Do, KR;
Woo-sik Kim, Seoul, KR;
Inventors:
Assignee:
LG Electronics Inc., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/02 (2006.01); H04L 25/03 (2006.01); H04L 25/49 (2006.01);
U.S. Cl.
CPC ...
Abstract
A signal transmission apparatus comprises a plurality of look-up tables (LUTs) corresponding to operation areas of a nonlinear transmission device, an operational characteristic calculator, a LUT selector, and a predistorter. The LUTs are adapted to store gain values of input signal magnitudes. The LUT selector selects a LUT corresponding to a calculated operational characteristic. The selected LUT generates a gain value output signal. The predistorter generates a predistorted signal from the gain value output signal and an input signal. The predistorted signal is input to a nonlinear transmission device.