Receiving circuit, receiving device, and receiving method
AssigneeSony Corporation
InventorHitoshi Tomiyama
Life of this patent
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Abstract
A receiving circuit includes: a mixing section configured to mix a local oscillation signal with a positioning signal that is received by an antenna within a constant receiving frequency band that includes a resonance frequency of the antenna, and output a mixed signal of the local oscillation signal and the positioning signal; and a control section configured to sequentially select any of a plurality of carrier frequency bands used in the positioning signal, and configured to switch the resonance frequency of the antenna to a specific frequency within the selected carrier frequency band, and switch a frequency of the local oscillation signal, based on the specific frequency and a frequency of the mixed signal.
Claims17
A receiving circuit, comprising:
- a mixing section configured to mix a local oscillation signal with a positioning signal that is received by an antenna within a constant receiving frequency band that includes a resonance frequency of the antenna, and output a mixed signal of the local oscillation signal and the positioning signal;
- and
- a control section configured to sequentially select any of a plurality of carrier frequency bands used in the positioning signal, and configured to switch the resonance frequency of the antenna to a specific frequency within the selected carrier frequency band, and switch a frequency of the local oscillation signal, based on the specific frequency and a frequency of the mixed signal.
A receiving device, comprising:
- a mixing section configured to mix a local oscillation signal with a positioning signal that is received by an antenna within a constant receiving frequency band that includes a resonance frequency of the antenna, and output a mixed signal of the local oscillation signal and the positioning signal;
- and
- a control section configured to sequentially select any of a plurality of carrier frequency bands used in the positioning signal, and configured to switch the resonance frequency of the antenna to a specific frequency within the selected carrier frequency band, and switch a frequency of the local oscillation signal, based on the specific frequency and a frequency of the mixed signal.
A receiving method, comprising:
- mixing, by a mixing section, a local oscillation signal with a positioning signal that is received by an antenna within a constant receiving frequency band that includes a resonance frequency of the antenna, and outputting a mixed signal of the local oscillation signal and the positioning signal;
- and
- performing control, by a control section, of sequentially selecting any of a plurality of carrier frequency bands used in the positioning signal, and switching the resonance frequency of the antenna to a specific frequency within the selected carrier frequency band, and switching a frequency of the local oscillation signal, based on the specific frequency and a frequency of the mixed signal.
Dependencies are inferred from the claim text.