Radio receiving apparatus and radio receiving method
First Claim
1. A radio receiving apparatus for receiving a radio signal having pulsating signals occurring at specific periods, said radio receiving apparatus comprising:
- a receiver for receiving the radio signal;
a regional level acquirer for acquiring first signal levels, each obtained by said receiver in one of individual regions into which each of the specific periods is divided;
a regional level storage for storing second signal levels acquired by said regional level acquirer in the individual regions under conditions where the radio signal is not received by said receiver for the individual regions;
a corrector for correcting the first signal levels in the individual regions obtained by said receiver based on the second signal levels in the individual regions stored in said regional level storage, respectively; and
a demodulator for demodulating the radio signal according to the first signal levels in the individual regions corrected by said corrector.
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Accused Products
Abstract
A radio receiving apparatus of the present invention is for receiving a radio signal having pulsating signals occurring at specific periods, wherein the radio receiving apparatus corrects signal levels received during communication in individual regions into which each of the aforementioned periods is divided based on signal levels received in the individual regions under conditions where the radio signal is not received. As a result of this correction, the radio receiving apparatus of the present invention can decrease the influence of noise having periodicity and improve reliability of communication.
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Citations
10 Claims
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1. A radio receiving apparatus for receiving a radio signal having pulsating signals occurring at specific periods, said radio receiving apparatus comprising:
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a receiver for receiving the radio signal; a regional level acquirer for acquiring first signal levels, each obtained by said receiver in one of individual regions into which each of the specific periods is divided; a regional level storage for storing second signal levels acquired by said regional level acquirer in the individual regions under conditions where the radio signal is not received by said receiver for the individual regions; a corrector for correcting the first signal levels in the individual regions obtained by said receiver based on the second signal levels in the individual regions stored in said regional level storage, respectively; and a demodulator for demodulating the radio signal according to the first signal levels in the individual regions corrected by said corrector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio receiving method for receiving a radio signal having pulsating signals occurring at specific periods, said radio receiving method comprising:
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receiving the radio signal by a receiver; acquiring first signal levels, each obtained by the receiver in one of individual regions into which each of the specific periods is divided; storing second signal levels acquired in the individual regions under conditions where the radio signal is not received by the receiver in a regional level storage for the individual regions; correcting the first signal levels in the individual regions based on the second signal levels stored in the regional level storage, respectively; and demodulating the radio signal according to the corrected first signal levels in the individual regions.
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Specification