Filters for removing disturbances from signals

A system comprising:

• an input terminal operable to receive an input signal having one or more first pulses;
• a first delay circuit and a second delay circuit electrically coupled to the input terminal in parallel with one another,
• wherein the first delay circuit is operable to generate a first delay signal based on the input signal, the first delay signal having one or more second pulses, wherein each second pulse comprises a respective falling edge that is delayed in time with respect to a corresponding falling edge of the one or more first pulses,
• wherein the second delay circuit is operable to generate a second delay signal based on the input signal, the second delay signal having one or more third pulses, wherein each third pulse comprises a respective falling edge that is delayed in time with respect to a corresponding rising edge of the one or more first pulses;
• and
• a latch circuit electrically coupled to the first delay circuit and the second delay circuit, wherein the latch circuit is operable to generate a latch signal based on the first delay signal and based on the second delay signal.

A method comprising:

• receiving an input signal having one or more first pulses;
• generating a first delay signal based on the input signal, the first delay signal having one or more second pulses, wherein each second pulse comprises a respective falling edge that is delayed in time with respect to a corresponding falling edge of the one or more first pulses;
• generating a second delay signal based on the input signal, the second delay signal having one or more third pulses, wherein each third pulse comprises a respective falling edge that delayed in time with respect to a corresponding rising edge of the one or more first pulses;
• and
• generating, by a latch circuit, a latch signal based on the first delay signal and based on the second delay signal.

A delay circuit comprising:

• an input terminal;
• and
• an output terminal,
• wherein the delay circuit is operable to:
• receive an input signal at the input terminal, the input signal having one or more first pulses,
• generate a delay signal based on the input signal, the delay signal having one or more second pulses, wherein each second pulse comprises a respective falling edge that is delayed in time with respect to a corresponding rising edge of the one or more first pulses and a respective rising edge that is concurrent in time with a corresponding falling edge of the one or more first pulses, and
• output the delay signal at the output terminal.