Multiplex communications – Duplex – Communication over free space
Reexamination Certificate
2011-05-24
2011-05-24
Ngo, Ricky (Department: 2464)
Multiplex communications
Duplex
Communication over free space
C370S281000, C370S294000, C370S295000, C455S079000, C455S073000
Reexamination Certificate
active
07948924
ABSTRACT:
A Radio Frequency (RF) front-end apparatus in a wireless communication system is provided. The apparatus includes a plurality of BandPass Filters (BPFs) for band-pass filtering a transmission signal or a reception signal, at least one circulator for dividing a signal transmission path and a signal reception path and at least one switch for controlling the signal transmission path and the signal reception path. The RF front-end apparatus provided by the present invention supports various frequency bands and optionally supports TDD and FDD in a wireless communication system.
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Gidado Rasheed
Jefferson IP Law, LLP
Ngo Ricky
Samsung Electronics Co,. Ltd.
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