Patent ID: 7054401

Claim:
A parallel signal transmission device comprising: a transmitting unit, for converting serial signals into parallel signals to be transmitted, provided with a latch for periodically latching the parallel signals besides the transmitted parallel signals, a code signal generator for generating serial code signals including synchronizing signals from the signals latched at the latch, and a fixed delay portion for adjusting phases of the parallel signals to the serial code signals by delaying the parallel signals by a predetermined delay time; and a receiving unit, for receiving the parallel signals, provided with a clock recovery portion of the parallel signals and the serial code signals, a bit changeover portion for changing over bits of the parallel signals and the serial code signals based on clocks recovered by the clock recovery portion, a bit shift detector for detecting bit shift amounts of the parallel signals outputted from the bit changeover portion based on the serial code signals, and a variable delay portion for performing skew adjustments of the parallel signals outputted from the bit changeover portion depending on the bit shift amounts.