| US 7,596,168 B2 | ||
| Diversity receiving apparatus, controlling method of the same, and computer-readable medium containing program therefor | ||
| Yasuji Saito, Gunma (Japan) | ||
| Assigned to Sanyo Electric Co., Ltd., Osaka (Japan) | ||
| Filed on Jul. 13, 2006, as Appl. No. 11/457,224. | ||
| Claims priority of application No. 2005-206078 (JP), filed on Jul. 14, 2005. | ||
| Prior Publication US 2007/0014386 A1, Jan. 18, 2007 | ||
| Int. Cl. H04B 1/00 (2006.01) | ||
| U.S. Cl. 375—140 [375/142; 375/150; 375/267; 375/343] | 7 Claims |
| 1. A diversity receiving apparatus to which first and second reception signals received by different antennas are input, comprising:
one or more phase shifters that generate one or more third signals having phases different from the second reception signal
based on the second reception signal;
a correlation calculator that obtains a correlation between the first reception signal and each of the second reception signal
and the third reception signals;
a correlation comparator that selects the reception signal having the highest correlation with the first reception signal
from the second reception signal and the third reception signals;
a selector that selects and outputs one of the second reception signal or the third reception signals, based on an output
of the correlation comparator;
a combining device that outputs a signal formed by combining the first reception signal and the reception signal output from
the selector; and
a trigger issuing section that issues a trigger signal at predetermined time intervals,
wherein the correlation calculator obtains the correlation between the first reception signal and each of the second reception
signal and the third reception signals every time the trigger signal is issued, and
wherein the correlation comparator selects the reception signal having the highest correlation with the first reception signal
from the second reception signal and the third reception signals every time the trigger signal is issued.
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