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    • 1. 发明申请
    • A COMMUNICATION RECEIVER AND METHOD
    • 通信接收机和方法
    • WO2016177410A1
    • 2016-11-10
    • PCT/EP2015/059859
    • 2015-05-05
    • HUAWEI TECHNOLOGIES CO., LTD.REGEV, DrorSHILO, ShimiEZRI, DoronBOON, Chirn ChyeYI, XiangZHANG, JunpingHU, GengenLIANG, DongLIU, Sheng
    • REGEV, DrorSHILO, ShimiEZRI, DoronBOON, Chirn ChyeYI, XiangZHANG, JunpingHU, GengenLIANG, DongLIU, Sheng
    • H04B1/00H04B15/06
    • H04B1/0053H04B1/006H04B1/0075H04B1/18
    • The invention relates to a communication receiver (100) for demodulating a plurality of frequency channels of a communication signal, wherein the plurality of frequency channels are arranged within a spectral range of interest of the communication signal and wherein the spectral range of interest has a spectral bandwidth ∆f and is situated around a frequency f RF . The communication receiver (100) comprises a mixer (101) being configured to mix the communication signal with a periodic mixing signal having a mixing frequency f C to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency f RF + f C and a second frequency spectrum portion comprising the spectral range of interest being situated around a frequency f RF – f C ; a first demodulator (103a) being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion of the mixed communication signal on the basis of a first local oscillator frequency f LO1 ; and a second demodulator (103b) being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion of the mixed communication signal on the basis of a second local oscillator frequency f LO2 .
    • 本发明涉及一种用于解调通信信号的多个频道的通信接收机(100),其中多个频道被布置在通信信号的感兴趣的频谱范围内,并且其中感兴趣的频谱范围具有频谱 带宽Δf并且位于频率fRF周围。 通信接收机(100)包括混频器(101),其被配置为将通信信号与具有混频器fC的周期性混频信号混合以获得混合通信信号,其中混合通信信号包括第一频谱部分,其包括频谱 感兴趣区域位于频率fRF + fC周围,第二频谱部分包括感兴趣的频谱范围围绕频率fRF-fC; 第一解调器(103a)被配置为基于第一本地振荡器频率fLO1来解调混合通信信号的第一频谱部分的感兴趣的频谱范围内的多个频率信道中的第一频率信道; 以及第二解调器(103b),其被配置为基于第二本地振荡器频率fLO2来解调混合通信信号的第二频谱部分的感兴趣的频谱区域内的多个频率信道的第二频率信道。
    • 2. 发明公开
    • DATA WRITING AND READING METHODS AND DEVICES, AND SYSTEM
    • EP4109447A1
    • 2022-12-28
    • EP21768319.2
    • 2021-03-11
    • Huawei Technologies Co., Ltd.
    • ZHENG, ChaoLIU, Sheng
    • G11B9/10
    • This application discloses a data writing and reading method and apparatus, and a system. The method increases a data storage density. The method is applied to a data storage system. The storage system includes a processor, a charged particle beam excitation modulation component, and a recording medium. The method is performed by the processor. The data writing method includes: obtaining to-be-written data; controlling, based on the to-be-written data, the charged particle beam excitation modulation component to generate a charged particle beam array with a target modulation feature; and controlling the charged particle beams in the charged particle beam array to act on the recording medium, to generate, in a target area of the recording medium, a target recording feature corresponding to the to-be-written data. The data reading method includes: controlling the charged particle beams in the charged particle beam array to act on a reacting area of the recording medium, to determine a target recording feature of a target area; and reading, based on the determined target recording feature of the target area, the to-be-read data.