Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-12-18
1998-12-15
Bacares, Rafael
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359161, 372 32, H04B 1004
Patent
active
058503056
ABSTRACT:
A communication system, such as a cable television system, includes an optical transmitter (FIG. 2) that includes adaptive predistortion control circuitry (104). The adaptive predistortion control circuitry (104) measures the distortion produced by television band signals processed in the communication system. In the optical transmitter (FIG. 2), the distortion signal produced by the television signals is a relatively high-level signal from which necessary predistortion control signals may be more easily processed. Additionally, the adaptive predistortion control circuitry (104) detects both the amplitude and the polarity of distortion within the optical output (FIG. 2) of the optical transmitter, which enables the control circuit (104) to determine the correct polarity and level adjustments that should be made to the predistorter (102) included in the optical transmitter.
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Bacares Rafael
Barnhardt III Hubert J.
Gardner Kelly A.
Massaroni Kenneth M.
Scientific-Atlanta, Inc.
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