Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Reexamination Certificate
2009-12-01
2011-11-15
Phu, Sanh (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
C455S296000, C455S278100, C455S135000, C455S067130, C375S346000
Reexamination Certificate
active
08060020
ABSTRACT:
An apparatus and method for removing an interference signal using a selective frequency phase converter are disclosed. The apparatus for removing an interference signal using a selective frequency phase converter includes: a first phase converter configured to convert a phase of a received RF signal to differentially output first and second signals having a phase difference of 180° from each other; a second phase converter configured to receive the first signal and selectively convert the phase of a particular frequency band; a third phase converter configured to receive the second signal and selectively convert the phase of a particular frequency band; a timing controller configured to correct a signal delay time between the output from the second phase converter and that of the third phase converter; and an adder configured to add an output from the second phase converter and an output from the third phase converter, wherein the second and third phase converters phase-convert the first and second signals such that the phases of the signals of the particular frequency bands do not have a phase difference of 180° from each other.
REFERENCES:
patent: 7266062 (2007-09-01), Kurihara
patent: 7796967 (2010-09-01), Okada
patent: 2004/0136289 (2004-07-01), Kurihara
patent: 2009/0061805 (2009-03-01), Kim et al.
patent: 10-2008-0056599 (2008-06-01), None
Hooman Darabi, “A Blocker Filtering Technique for SAW-Less Wireless Receivers”, IEEE Journal of Solid-State Circuits, Dec. 2007, pp. 2766-2773, vol. 42, No. 12.
Bernard Tenbroek et al., “Single-Chip Tri-Band WCDMA/HSDPA Transceiver without External SAW Filters and with Integrated TX Power Control”, 2008 IEEE International Solid-State Circuits Conference, ISSCC 2008 / Session 10 / Cellular Transceivers / 10.2, 2008, pp. 202-203, 607.
Kim Seong Do
Lee Ja Yol
Shim Jae Hoon
Yu Hyun Kyu
Electronics and Telecommunications Research Institute
Phu Sanh
LandOfFree
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