Telecommunications – Carrier wave repeater or relay system – Transmitter/receiver feedback compensation
Reexamination Certificate
2011-01-11
2011-01-11
Lee, John (Department: 2618)
Telecommunications
Carrier wave repeater or relay system
Transmitter/receiver feedback compensation
C455S011100, C455S020000, C455S018000
Reexamination Certificate
active
07869761
ABSTRACT:
Disclosed herein is a radio frequency (RF) repeater comprising an analog signal processing unit and a digital signal processing unit, wherein the analog signal processing unit includes a filtering unit; an amplification unit on receiving side; a frequency conversion unit on receiving side; a frequency conversion unit on transmitting side; and an amplification unit on transmitting side, and the digital signal processing unit includes a receiving signal detection unit; the automatic gain control unit; a feedback signal detection unit; a feedback signal combining unit; a feedback signal elimination unit; an automatic delay control unit; and the control unit.According to the RF repeater and repeating method, installation cost is reduced, limitations in output magnitude and installation are overcome, and ensuring high output power characteristics.
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Baik Sung-Jun
cho Sung-min
Choi Gyeong-Ho
Ihm Jong-Tae
Kim Seong-keun
Airpoint Co., Ltd.
Lee John
Lowe Hauptman & Ham & Berner, LLP
SK Telecom Co. Ltd.
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