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    • 5. 发明申请
    • WIRELESS DEVICE WITH BUILT-IN SELF TEST (BIST) CAPABILITY FOR TRANSMIT AND RECEIVE CIRCUITS
    • 具有内置自检(BIST)功能的无线设备发送和接收电路
    • US20140256376A1
    • 2014-09-11
    • US13875083
    • 2013-05-01
    • QUALCOMM INCORPORATED
    • Haim Mendel WeissmanAvigdor BrillantLior RavivMohammad Ali TassoudjiYu-Chin OuMazhareddin Taghivand
    • H04B17/00
    • H04B17/14H04B17/19
    • A wireless device with built-in self test (BIST) capability for testing/calibrating transmit and receive circuits is disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) includes a first circuit and a second circuit. The first circuit (e.g., a transmitter or a mixer) provides a test signal to at least one transmit path. The test signal is electro-magnetically coupled from the output of the at least one transmit path to a test signal line. For example, the test signal may be provided from the at least one transmit path via at least one antenna feed line to at least one antenna element and may be electro-magnetically coupled from the at least one antenna feed line to the test signal line. The second circuit (e.g., a buffer, a receiver, or a mixer) processes a received test signal from the test signal line.
    • 公开了一种具有内置自检(BIST)功能的无线设备,用于测试/校准发射和接收电路。 在示例性设计中,装置(例如,无线装置或集成电路)包括第一电路和第二电路。 第一电路(例如,发射机或混频器)向至少一个发射路径提供测试信号。 测试信号从至少一个发射路径的输出到测试信号线电磁耦合。 例如,测试信号可以经由至少一个天线馈送线路从至少一个发射路径提供给至少一个天线元件,并且可以从至少一个天线馈线到电测磁耦合到测试信号线。 第二电路(例如,缓冲器,接收器或混频器)处理来自测试信号线的接收到的测试信号。
    • 10. 发明授权
    • Noise canceler for use in a transceiver
    • 用于收发器的噪音消除器
    • US09450623B2
    • 2016-09-20
    • US14491851
    • 2014-09-19
    • QUALCOMM Incorporated
    • Haim Mendel WeissmanAvigdor Brillant
    • H04B1/44H04B1/10
    • H04B1/10H04B1/123H04B1/525
    • 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.
    • 公开了一种用于收发器的噪声消除器。 在示例性实施例中,一种装置包括用于输出放大的发射信号的分离放大器,分离放大器在接收频带中提供第一噪声衰减因子。 该装置还包括发射天线以发射放大的发射信号,该发射天线通过在接收频带中提供第二噪声衰减因子的天线隔离因子与接收天线隔离。 该装置还包括噪声消除器,其被配置为从接收信号中减去检测信号以获得经调整的接收信号,其中,所述检测信号的减法在所述接收频带中提供第三噪声衰减因子,并且其中所述第一,第二和第三 噪声衰减因子组合在接收频带中提供选定量的噪声衰减。