H - Electricity – 04 – B
Patent
H - Electricity
04
B
179/2
H04B 1/64 (2006.01)
Patent
CA 1194426
SYSTEM FOR MAXIMUM EFFICIENCY TRANSFER OF MODULATED SIGNALS UTILIZING LINE SYSTEMS ABSTRACT OF THE DISCLOSURE A signal transfer and processing system for use with a transmission line includes transmission line interface circuitry and signal processing circuitry. The processing circuitry receives a signal to be processed, providing a processed signal for further use. An input bandpass filter selectively limits the bandwidth of the input signal. A primary active frequency control selectively controls the relative level of the signal provided from the primary bandpass filter means for selectively controlling the relative level of signal dynamics within different frequency bands for providing a frequency controlled signal, which is compressed by a compressor. A secondary active frequency control selectively controls the relative level of the primarily compressed signal within different frequency bands to provide a frequency controlled primarily compressed signal which is further compressed by a secondary compressor. A feedback circuit between the primary and secondary compressors limits compression by the primary compressor as a time-delayed function of level increase of the secondarily compressed signal. An output bandpass filter limits bandwidth of the secondarily compressed signal. Switching circuits interconnect signal input and signal output of the signal processing cir- cuitry with the transmission line for causing signals transmitted by the transmission line to be automatically directed through the signal processing circuitry.
429464
A. Partnership Coghill Marvin; Trustees Of Metme Communications
Bloy Graham P.
Eberhardt Alfred F.
Meredith & Finlayson
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