Ring core keyboard entry device

Ring counter

Ring coupled mechanical filter

Ring oscillator having a substantially sinusoidal signal

Ring oscillator with frequency control loop

Ripple reducing smoothing circuits

Robust data extension for 8vsb signaling

Robust system for transmitting and receiving map data

Robust vector quantization of line spectral frequencies

Rodenticide

Rom-based finite impulse response filter for use in mobile...

Rotary encoding switch

Rotatable resistive vane wave guide attenuator

Rotated-bit pulse width modulated digital-to-analog converter

Rotationally invariant trellis coding incorporating...

Rounded keypad

Routing logic means for a communication switching element

Rpm information signal generating circuitry for electronic...

Rugged quartz clock

Ruggedized analog front-end for a network communicative...