| 摘要 |
A synchronous control apparatus for reception control in wireless packet communication suppresses detection errors during controlling synchronization to detect codes for improved signal reception. An initial synchronizer includes a code correlator for receiving delayed waves on plural paths. The code correlator outputs a correlation level value through another correlator. The correlation level value is compared with a threshold value from a threshold value register, with the result inputted into an address counter. The correlation level value is also inputted into a correlation level hold circuit. The hold circuit sums the correlation level values obtained in the correlator for a portion of the paths corresponding to a count in the address counter. The hold circuit compares the summed correlation level values with another threshold value from another threshold value register, and uses the result as a basis to set a top timing for receiving delayed waves.
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