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 7224750 B1

PDF
Full Text
Expired
Date of Patent:
May. 29, 2007

Filed:

Jun. 13, 2003
Applicants:

Jae-wan Kim, Yongin, KR;

In-chul Hwang, Seoul, KR;

Hae-moon Seo, Yongin, KR;

Young-jin Kim, Yongin, KR;

Inventors:

Jae-wan Kim, Yongin, KR;

In-chul Hwang, Seoul, KR;

Hae-moon Seo, Yongin, KR;

Young-jin Kim, Yongin, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and extracting a RF input signal having a desired frequency; a mixing unit for mixing the RF input signal provided from the pre-processing unit with a local oscillation signal having the same frequency as the RF input signal and generating a desired baseband signal; a noise-free-signal amplifying unit for shifting the desired baseband signal to a band that is free of effects due to 1/f noise, amplifying the shifted baseband signal, and re-shifting the amplified signal to the baseband; and a baseband processing unit for selecting a desired channel signal from the amplified baseband signal to be provided from the noise-free-signal amplifying unit and amplifying the selected signal.


Find Patent Forward Citations

Kim, Jae-wan. (2007). Apparatus and method for receiving rf signal free of 1/f noise in radio communication system (U.S. Patent No. 7224750). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7224750

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…