Spread spectrum communication apparatus
AssigneeCanon Kabushiki Kaisha
InventorKatsuo Saito
Life of this patent
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Abstract
A spread spectrum communication apparatus comprises a correlator for correlating a received signal and a reference signal, a synchronizing circuit for synchronizing codes for spread spectrum communication according to a correlation output of the correlator, a controller for controlling a transmission power according to the output of the correlator, and a detector for detecting the output of the correlator. The synchronizing circuit synchronizes the codes according to the output of the correlator detected by the detector. The controller controls the transmission power according to the output of the correlator detected by the detector.
Claims20
A spread spectrum communication apparatus comprising:
- correlating means for correlating a received signal and a reference signal and for outputting a synchronizing signal based on a correlation of the received signal and the reference signal;
- synchronizing means for synchronizing codes for receiving a spread spectrum signal according to the synchronizing signal outputted from said correlating means;
- and
- control means for controlling a transmission power according to the synchronizing signal outputted from said correlating means.
A spread spectrum communication apparatus comprising:
- output means for outputting a synchronizing signal based on a correlation of a received signal and a reference signal, the synchronizing signal for synchronizing codes for receiving a spread spectrum signal;
- and
- control means for controlling a transmission power according to the synchronizing signal.
A method for controlling a power of a transmitting spread spectrum signal, comprising steps of:
- detecting a synchronizing signal outputted from a correlator which correlates a received signal and a reference signal, the synchronizing signal for synchronizing codes for receiving a spread spectrum signal;
- and
- controlling the power of the transmitting spread spectrum signal according to the synchronizing signal detected in said detecting step.
Dependencies are inferred from the claim text.