Patent ID: 7308239
Filing Date: 2007-12-11
Classification: H03D,H03K,H04L

Abstract:
1. A receiver for receiving an amplitude shift keying signal comprising: a resonance circuit which receives the amplitude shift keying signal which is transmitted from transmitting side; a threshold signal generating circuit that includes a first diode to which the received amplitude shift keying signal is input and generates a threshold signal which practically follows a peak value of the amplitude shift keying signal; an input circuit including a second diode to which the received amplitude shift keying signal is input; a first comparator to which the amplitude shift keying signal is input from the input circuit through the second diode, the first comparator acting with the threshold signal through the first diode as a first threshold; a detection circuit for detecting output from the first comparator; and a second comparator to which output from the detection circuit is inputted, the second comparator acting with a second threshold that is a predetermined fixed value, wherein the first diode and the second diode are disposed in a same package.