Seiji Okubo

Spread spectrum transmitter and spread spectrum receiver

Timing phase synchronization detecting circuit and demodulator

Spread spectrum communication system and method for the same

Timing reproducing device and demodulator

Automatic frequency control communication system

Timing reproducer and demodulator comprising this

Spread spectrum transmission apparatus, spread spectrum reception apparatus, and spread spectrum communication system

Initial acquisition circuit

Method and apparatus for reproducing timing, and a demodulating apparatus that uses the method and apparatus for reproducing timing

Automatic frequency control unit and spectrum spread receiving apparatus