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:
Nov. 02, 2010
Filed:
Mar. 07, 2007
Sung-jun Baik, Daegu, KR;
Byung-soo Chang, Gyeonggi-do, KR;
Seong-choon Lee, Seoul, KR;
Kyoo-tae Ryoo, Gyeonggi-do, KR;
Jeong-hwi Kim, Seoul, KR;
Jong-sik Lee, Seoul, KR;
Sung-Jun Baik, Daegu, KR;
Byung-Soo Chang, Gyeonggi-do, KR;
Seong-Choon Lee, Seoul, KR;
Kyoo-Tae Ryoo, Gyeonggi-do, KR;
Jeong-Hwi Kim, Seoul, KR;
Jong-Sik Lee, Seoul, KR;
Airpoint, , KR;
KT Corporation, , KR;
Abstract
An adaptive feedback estimation and cancellation (AFEC) apparatus includes: a controller for generating and outputting control information by using a synchronization signal from an external synchronization acquisition unit and base station information, in order to remove a feedback signal that exists in a forward/reverse repeater signal to be repeated and then send the forward/reverse repeater signal; a first feedback prediction canceller for adaptively removing a feedback signal that exists in the forward repeater signal based on the control information from the controller and automatically adjusting the gain of the forward repeater signal; and a second feedback prediction canceller for adaptively removing a feedback signal that exists in the reverse repeater signal based on the control information from the controller and automatically controlling the gain of the reverse repeater signal.