Signal frequency conversion circuit and signal frequency conversion method

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United States of America Patent

PATENT NO 9780729
SERIAL NO

15342214

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Abstract

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A signal frequency conversion circuit is configured to reduce power consumption and resource costs of the signal frequency conversion circuit. Embodiments of the present disclosure include a primary-stage frequency conversion module and at least one subsequent-stage frequency conversion module that is in series connection, where the primary-stage frequency conversion module includes a first filter and a numerically controlled oscillator NCO, and an output of the first filter is connected to an input of the NCO; each subsequent-stage frequency conversion module includes a second filter and a subsequent-stage frequency conversion unit, and an output of the second filter is connected to an input of the subsequent-stage frequency conversion unit; and an output of the NCO is connected to an input of a second filter in a first subsequent-stage frequency conversion module in the at least one subsequent-stage frequency conversion module in series connection.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sheng, Lanping Shanghai, CN 2 3

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