Patent ID: 6266364
Filing Date: 2001-07-24
Classification: H04B,H04J

Abstract:
A data processor comprising:a shift register for generating recurrence spreading codes:an initial data register, in which initial data for causing the shift register to generate a forefront spreading code in a recurrence spreading code series is stored beforehand;a preset data register for updatably and tentatively storing preset data for causing the shift register to generate a particular spreading code;a reset data register, in which state data of the shift register when restoring the forefront of the recurrence spreading code series is stored beforehand;a selector for selectively supplying the initial data stored in the initial data register and the preset data stored in the preset data register to the shift register;a comparator for comparing the state data stored in the reset data register and actual state data of the shift register;a timing generator for controlling, when the two compared state data coincide, the selector for causing the initial data stored in the initial data register to be supplied to the shift register; anda controller for causing state data to be generated and stored in the reset data register, causing initial data to be stored in the initial data register, causing preset data to be generated and stored in the preset data register, and then causing the timing generator to feed the stored reset data to the shift register.