Signal comparator circuit

Signal comparing circuit

Signal conditioning circuit for magnetic sensing means

Signal conversion circuit

Signal detecting circuit

Signal detecting circuit apparatus

Signal detecting circuit for electronic musical instrument

Signal detection apparatus using an adaptive threshold

Signal discriminating apparatus

Signal input circuit with constant operating power

Signal isolating and sampling circuit

Signal level comparing circuit

Signal level detector for compact disc player

Signal processing arrangements

Signal processing circuitry

Signal reading circuit

Signal sampling gate circuit

Signal selection circuit

Signal strength detector

Signal transition detection method and system