H - Electricity – 03 – M
Patent
H - Electricity
03
M
354/70
H03M 1/00 (2006.01) G01T 3/00 (2006.01) G06F 17/40 (2006.01)
Patent
CA 1074448
ABSTRACT OF THE DISCLOSURE Electrical communication means for transmitting an analog signal generated at a first location to a remote second location which maximizes noise rejection uses analog to digital converters to sample the analog signal with a periodicity equal to an integral number of cycles of the transmission line frequency. At the receiving end, a summing unit receives the digital output and maintains a running digital sum. Upon receipt of a reset input, the sum is transmitted and cleared from the summing unit. The transmitted digital sum is shifted and the least significant bit dropped. A random access memory stores the transmitted sum while a counter cycles through its output states at the sampling frequency. A decoder responsive to a given output state of the counter provides an output which is transmitted to the reset input of the summing unit. A strobe input readies the random access memory to accept the trans- mitted sum and a second counter counts the decoder output and cycles through its output states which are also trans- mitted to the random access memory to identify the location within the random access memory that the transmitted sum is to assume.
239216
Einolf Charles W. (jr.)
Neuner James A.
Szabo Andras I.
Na
Westinghouse Electric Corporation
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