Device that filters the original information out of an altered signal again. DeviceNet - conformity and interoperability Confirmation of agreement of a bus node with the DeviceNet specifications and correct interoperability with other DeviceNet nodes.
A demodulator is an electronic circuit used to recover the information content from the carrier wave of a signal. The term is usually used in connection with radio receivers, but there are many kinds of demodulators used in many other systems. Another common one is in a modem, which is a contraction of the terms modulator/demodulator.