Scan circuit and method for keyboard
Scanned switch matrix
Scanning optical keyboard
Scanning, row-column type keyboard
Seal membrane with integral microphone support
Secure keyboard with random order of key interrogation
Secure keypad scanning
Security keyboard matrix scanning method
Security system transmitter with opposed concave actuators
Segmented gain controller
Self-powered switching device
Self-scan programmable keypad interface
Sensing keys for keyboard
Sequential two-key system to input keyboard characters and...
Shared interface device
Single wire keyboard encode and decode circuit
Single-hand input keyboard
Single-hand mounted and operated keyboard
Smart multiple switch scanner, single wire bus multiplex system
Snap-on keyboard and method of integrating keyboard