Rca Inc.

Elcom Technologies, Inc.

Joseph Robert Ader

Chandrakant Bhailalbhai Patel

Robert A Dischert

Jack R Harford

Robert J Topper

Henry Charles Klein

John Artman

Stephen Pudles

Remote control apparatus for a power line communications system in which control signals are transmitted, via the power line to, from the location of utilization equipment to a control unit located at a remote point and by which the utilization equipment is controlled.

Remote control apparatus for power line communications system

A power line communications system in which information signals are frequency multiplied in a transmitter unit, so that the critical information portions of the information signals are frequency shifted from a notch in the frequency response characteristic between an outlet in the power line communications system to which the transmitter unit is connected and an outlet in the power line communications system to which a receiver unit is connected, whereby the critical information portions of the information signals are not lost in the notch.

Power line communications system

A frame comb type composite video decoder which does not require motion adaptive processing circuitry generates low frequency luminance signal components from one field of composite video signal. The high frequency luminance component is derived from two lines of composite video signal from each of two fields disposed before and after the field from which the low frequency luminance signals is developed.

Luminance/chrominance separation circuitry

In a digital television receiver, a digital signal processing system generates samples of binary coded color mixture digital signals that are a representation of color picture information. The values of binary coded coefficients that convert the representation of the color picture information into binary coded color difference signals are stored in a memory accessed by a microprocessor. In response to adjustment of controls such as contrast and tint, the microprocessor modifies the coefficients. The modified coefficients are placed in a digital store such as a latch arrangement. A multiplier arrangement receives samples of the color mixture digital signals as first inputs for multiplying them by corresponding modified coefficients that are supplied by the digital store as second inputs. A clock signal is generated that sequentially clocks out of the digital store selected ones of the modified coefficients for developing a sequence of products corresponding to the color mixture components of the color difference signal. The products are then combined to form samples of the binary coded color difference signal.

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Yardley, PA, United States of America

Joseph Robert Ader