Receiver device and reception method
AssigneeMitsubishi Electric Corporation
InventorKiyoshi Onohara
Life of this patent
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Abstract
Provided is a receiver device including a first A/D converter (203), a second A/D converter (204), an amplifier (205) which is provided at a previous stage of the second A/D converter (204), and a digital signal processing unit (207). The digital signal processing unit (207) includes an amplitude comparison unit (211) configured to compare an amplitude of a digital signal output from the first A/D converter (203) and an amplitude of a digital signal output from the second A/D converter (204) to make a determination, and to output a determination result, and a selector (212) configured to select one of the digital signal output from the first A/D converter (203) or the digital signal output from the second A/D converter (204) based on the determination result.
Claims13
A receiver device, comprising:
- A/D converters which include a first A/D converter and a second A/D converter, and each of the first A/D converter and the second A/D converter is configured to convert a reception signal formed of an analog signal to a digital signal;
- an amplifier which is provided at a previous stage of the second A/D converter;
- and
- a digital signal processor configured to process the digital signal output from the first A/D converter and the digital signal output from the second A/D converter,
- wherein the reception signal is directly input to the first A/D converter,
- wherein the reception signal having been amplified by the amplifier is input to the second A/D converter, and
- wherein the digital signal processor includes:
- amplitude comparison circuitry configured to compare an amplitude of the digital signal output from the first A/D converter and an amplitude of the digital signal output from the second A/D converter to make a determination, and to output a determination result;
- and
- a selector configured to select and output one of the digital signal output from the first A/D converter or the digital signal output from the second A/D converter based on the determination result.
A reception method, comprising the steps of:
- directly inputting a reception signal formed of an analog signal to a first A/D converter of a plurality of A/D converters to convert the reception signal to a digital signal;
- amplifying the reception signal;
- inputting the amplified reception signal to a second A/D converter of the plurality of A/D converters to convert the amplified reception signal to a digital signal;
- comparing an amplitude of the digital signal output from the first A/D converter and an amplitude of the digital signal output from the second A/D converter to make a determination, and outputting a determination result;
- and
- selecting and outputting one of the digital signal output from the first A/D converter or the digital signal output from the second A/D converter based on the determination result.
Dependencies are inferred from the claim text.