Sparking stylus for acoustic digitizer

Spatial and time multiplexing of multi-band signals

Spatial digitizer

Speech recognition bias equalization method and apparatus

Spinner transducer

Sports timekeeping system

Spread spectrum telemetry of physiological signals

Squelch circuit and tone signalling

Stage lighting lamp unit and stage lighting system including...

State-based remote control system

Status signal method and apparatus for movable barrier...

Stiffness tester

Storage system

Structural monitoring system using fiber optics

Stuck point indicating device with linear sensing means

Submarine observation apparatus and submarine observation...

Supervisory system having a dead band to prevent nuisance...

Supply current regulator for two-wire sensors

Survey controller multiplexer

Surveying apparatus