Clock frequency control method and device, and IC card...

Clock pulse generator with selective pulse delay and pulse width

CMOS imaging device with integrated identification circuitry

Coaligned bar codes and validation means

Coaligned bar codes and validation means

Code and reading system

Code data read apparatus for photographic film

Code discriminator

Code identification apparatus

Code identification apparatus

Code Image reading apparatus

Code mark reader

Code reader

Code reader

Code reader

Code reader

Code reader

Code reader

Code reader

Code reader and card type recording medium