Patent ID: 7027419

Claim:
A mobile communication terminal device of CDMA system comprising: a transmission circuit comprising a first code generating circuit for generating a multi-bit code necessary for transmission, a first storing device for storing value of each bit of said first code generating circuit, and a first control device for writing value of each bit at an arbitrary first write timing of said first code generating circuit, and reading the value of each bit stored in said first storage device at an arbitrary first read timing to set to each corresponding bit of said first code generating circuit; and a reception circuit comprising a second code generating circuit for generating a multi-bit code necessary for reception, a second storing device for storing value of each bit of said code generating circuit, and a second control device for writing value of each bit at an arbitrary second write timing of said second code generating circuit, and reading the value of each bit stored in said second storage device at an arbitrary second read timing to set setting to each corresponding bit of said second code generating circuit, wherein said arbitrary first write timing, said arbitrary first read timing, said arbitrary second write timing and said arbitrary second read timing are based on discontinuous transmission within a code period, wherein said first and second code generating circuits are the same circuit that is common to said transmission circuit and said reception circuit.