Patent ID: 8265122

Claim:
A receiver that receives each of pulse signals spread by spread codes, comprising: an RF front-end section which performs filtering and amplification on each received signal; an AD converter section which analog-digital converts signals outputted from the RF front-end section; a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon; a reception environment measuring section which measures reception environment constituted by components of the receiver using signals inputted to the baseband section; RF front-end, the AD converter and the baseband section of the receiver; and a mode controller for controlling operation modes of the baseband section, the AD converter section, the reception environment measuring section, and the parameter setting section, and a parameter register for storing the set parameters of the parameter setting section, wherein the baseband section includes plural blocks and control circuit units provided in each of the respective blocks, wherein, in the operation modes, there are a standby state mode, an initial setting mode, and a data reception mode, wherein, when the initial setting mode, the reception environments are measured by the reception environment measuring section using signals inputted to the baseband section prior to a start of a receiving operation of receiving said each of pulse signals; wherein parameters for each section of the receiver are set on the basis of output signals of the reception environment measuring section; wherein, when the receiver enters the data reception mode, said pulse signals are received, and wherein operating/non-operating states of the respective blocks in the baseband section are respectively controlled by control circuit units provided in each of the respective blocks according to the operation modes.