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.

Date of Patent:
Mar. 04, 2008

Filed:

Dec. 23, 2004
Applicants:

Si-bum Jun, Seoul, KR;

Tae-hui Cho, Gunpo-si, KR;

Sun-gi Lee, Seoul, KR;

Kook-jun Kim, Suwon-si, KR;

Inventors:

Si-Bum Jun, Seoul, KR;

Tae-Hui Cho, Gunpo-si, KR;

Sun-Gi Lee, Seoul, KR;

Kook-Jun Kim, Suwon-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/06 (2006.01); H04B 1/04 (2006.01); H04L 25/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An Ultra Wide Band (UWB) transmitting and receiving device that includes a Digital Signal Processor (DSP) for implementing a DC offset cancellation algorithm, an adder for adding a baseband transmission signal from the transmitter and a calibration signal produced by the algorithm of the DSP, a modulator for modulating the signal from the adder, a transmitter amplifier for amplifying the modulated signal, a coupler for applying the output of the transmitter to the receiver, and a switch for selectively connecting the output of the coupler to the input of the receiver.


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