Fujitsu Corporation

Sumimasa Sunaga

Koichi Kuroiwa

Shoji Taniguchi

Masami Kanasugi

Shift code patterns at four continuous phases obtained by dividing 15 shift code patterns given to the respective flip-flops of a linear feedback shift register of degree 4 into four parts are stored in a code memory (). Besides, mask code patterns to shift a phase of a PN code (PN) to be generated by every four phases, are stored in a code mask memory (). Next, a logical operation is performed at a phase shift circuit () by using the shift code pattern outputted from the code memory () and the mask code pattern outputted from the code mask memory (), to generate a PN code (PN) having a code length of 15 from a random phase.

PN code generator, GOLD code generator, PN code despreader, method for generating PN code, method for generating GOLD code, method for despreading PN code and computer program

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Kawasaki, Japan

Sumimasa Sunaga