Automatic filter adjusting apparatus

Details Automatic filter adjusting apparatus Automatic filter adjusting apparatus

1991-11-14

1993-07-13

Pascal, Robert J.

Wave transmission lines and networks

Automatically controlled systems

328167, H03G 1104

Patent

active

052277437

ABSTRACT:
An automatic filter adjusting apparatus including an adjustable filter having an input and an output, a reference signal generator for providing a reference signal to the filter, a generator for generating an adjusting signal used to adjust the filter, a comparator for comparing the output of the filter to a reference level and a controller for controlling the adjusting signal generator.

REFERENCES:
patent: 4257018 (1981-03-01), Masdea et al.
patent: 4858219 (1089-08-01), Yoshikawa
Yamamoto et al., IEEE International Conference on Consumer Electronics, Jun. 2-9, 1989, pp. 50-51.
Kawano et al., 8087 IEEE Transactions on Consumer Electronics, vol. 35, No. 4, Nov. 1989, pp. 741-747.
Miura et al., IEEE Transactions on Consumer Electronics, vol. CE-30, No. 3, Aug. 1984, pp. 360-368.
Japanese Patent Publication, Tokkai-sho 63-167513, Jul. 1988.

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