(under the class definition) Subject matter wherein a signal sensed from the record carrier is used to control an external device.
(1) Note. The signal sensed from the record carrier may be a signal which was magnetically recorded thereon or an electrical or mechanical signal generated by mechanically, electrically or optically sensing an attachment to or modification of the record carrier.
(2) Note. A device which is extraneous to the normal function of recorders such as a printer for printing a label on the record from which the control signal is developed, although included within the same housing as the recorder, is considered an external device.
SEE OR SEARCH CLASS
318, Electricity: Motive Power Systems,
567+, and classes indicated in the search notes thereunder, for program or pattern controlled devices.
