Timing and lap counting device for a swimmer

Timing circuit

Timing interpolator

Trigger signal generating circuit with extraneous pulse preventi

Ultrasonic fuel gauging system using state machine control

Universal timing array

Variable rate output pulse generator

Vehicle elapsed mileage indicator

Velocity detection apparatus for an elevator

Vernier delay line interpolator and coarse counter realignment

Vital rate decoder

Watch-dog timer circuit and a microcomputer equipped therewith

Watchdog timer for resetting microcomputer before runaway

Waterproof digital lap counter

Wheel mounted data logger

Wristwatch-typed pedometer with wireless heartbeat signal...