Apparatus and method for reading punched cards

Apparatus for reading encoded information on a carrier subject t

Arrangement for synchronizing an information reading device with

Arrangement for synchronizing an information reading device with

Badge reader with reliable data clocking means

Card reader with improved data processing timing control

Data card reader employing synchronization and resynchronization

Encoding mechanism for holed badge readers

Indicia reading method and apparatus

Manually operable card reader including column sensor

Method for checking the compatibility of a mobile station and a

Scannable document velocity detector

Sensor alignment circuit and method of operation

System and method for managing a plurality of local lists of...

Wideband frequency multiplier particularly adapted for use in ba