초록 ▼

A spread spectrum radiocommunication device includes a plurality of digital data demodulators which are independently operated to track the paths of a multipath radio signal transmitted from a to-be-communicated device and PN code generators each of which has a ROM storing PN codes and which are res

A spread spectrum radiocommunication device includes a plurality of digital data demodulators which are independently operated to track the paths of a multipath radio signal transmitted from a to-be-communicated device and PN code generators each of which has a ROM storing PN codes and which are respectively provided in the digital data demodulators. In a control section, a ROM address latched by an address latch circuit is monitored and a PN address relative value is generated, and the PN address relative value is added to a basic address generated from an address counter in an address adder and the added address is supplied to the PN code ROM to generate a PN code.

대표청구항 ▼

[ What is claimed is:] [1.] A spread spectrum radiocommunication device comprising:a spread code memory for storing spread codes;a plurality of digital data demodulating circuits for independently demodulating multipath radio signals transmitted via a radio channel, each digital data demodulating ci

[ What is claimed is:] [1.] A spread spectrum radiocommunication device comprising:a spread code memory for storing spread codes;a plurality of digital data demodulating circuits for independently demodulating multipath radio signals transmitted via a radio channel, each digital data demodulating circuit comprising a readout address generating circuit for generating and supplying readout addresses to said spread code memory to read out the spread codes; andan address control circuit changing the readout addresses generated by the readout address generating circuits of said digital data demodulators based on differences between readout addresses generated by the address generating circuits and target addresses in order to cause chip phases of the spread codes read out from the spread code memory to coincide with chip phases of the multipath radio signals.