Invention Application
- Patent Title: NOISE CANCELER FOR USE IN A TRANSCEIVER
- Patent Title (中): 噪音消除器用于收发器
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Application No.: US14491851Application Date: 2014-09-19
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Publication No.: US20160087658A1Publication Date: 2016-03-24
- Inventor: Haim Mendel Weissman , Avigdor Brillant
- Applicant: QUALCOMM Incorporated
- Main IPC: H04B1/10
- IPC: H04B1/10

Abstract:
A noise canceler for use in a transceiver is disclosed. In an exemplary embodiment, an apparatus includes a split amplifier to output an amplified transmit signal, the split amplifier providing a first noise attenuation factor in a receive band. The apparatus also includes a transmit antenna to transmit the amplified transmit signal, the transmit antenna being isolated from a receive antenna by an antenna isolation factor that provides a second noise attenuation factor in the receive band. The apparatus also includes a noise canceler configured to subtract a detection signal from a received signal to obtain an adjusted received signal, wherein subtraction of the detection signal provides a third noise attenuation factor in the receive band, and wherein the first, second, and third noise attenuation factors combine to provide a selected amount of noise attenuation in the receive band.
Public/Granted literature
- US09450623B2 Noise canceler for use in a transceiver Public/Granted day:2016-09-20
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