Patent ID: 7133467

Claim:
A demodulation apparatus comprising: a joint detection demodulator that demodulates by joint detection; a RAKE demodulator that demodulates by RAKE; a switching component that selects either the joint detection demodulator or the RAKE demodulator to demodulate a received signal; a switching determining component that determines, in accordance with a reception condition of the received signal, which demodulator is selected by the switching component; a storage component that stores a RAKE demodulation result provided by the RAKE demodulator when the RAKE demodulator is selected to demodulate the received signal; and an error detector that detects an error in a demodulation result provided by the selected demodulator, wherein when the error detector detects an error in the demodulation result stored to the storage component, the switching determining component controls the switch to select the joint detection demodulator to demodulate the received signal and the storage component provides the stored RAKE demodulation result to the joint detection demodulator for use in joint detection demodulating the received signal.