Abstract: A baseband carrier phase corrector is disclosed which permits rapid demodulation and demodulation of varying RF input signals. The baseband carrier phase corrector receives RF signals, or alternatively, IF signals, and converts the signals to baseband. An RF signal received by the baseband carrier phase corrector is split and multiplied with oscillating signals having a 90 degree phase differential. The resultant signals are baseband in-phase (I) and quadrature (Q) signals. The I and Q signals are filtered through low pass filters. The filtered I and Q signals are multiplied within a first complex multiplier with a generated phase error. The output of the first complex multiplier results in phase adjusted I and Q baseband signals. A symbol decision circuit estimates digital I and Q signals which are the allowed symbols closest in phase to the phase adjusted I and Q baseband signals. A second complex multiplier is coupled to the symbol decision circuit and to the outputs of the low pass filters.

Abstract: An automatic dog or cat feeder has a plurality of pairs of water and food bowls in a horizontally rotative tray, and a cover assembly for the rotative tray and having a front opening exposing only one pair at a time of the food and water bowls. The cover assembly contains a clock controlled drive mechanism for stepwisely turning the rotative tray member so that one pair of its pre-filled food and water bowls is exposed at the cover assembly front opening during each successive day during the automatic feeding of a house pet.