Computer interface device
Computer security system for a time shared computer accessed ove
Computer systems to inhibit unauthorized copying, unauthorized u
Computer telephone access security processor
Conditional replenishment video encoder with sample grouping and
Conductive electrode arrays and arrays of resistive elements for
Conductive stylus storage for a portable computer
Constant-voltage power supply
Contact sensitive device
Contact touchscreen with an improved insulated spacer arrangemen
Contacting pickup optical reproduction system
Contrast, brightness and peaking control circuit
Control circuit for electromagnetically-operated recorders in te
Control device of a teletypewriter to be used by invalids
Control method of a plurality of locators and control device of
Control system for functional sequences
Controllable cursor vacuum hold down
Controller for an acoustic touch panel
Controller for an acoustic wave touch panel
Conversational video system