Digital filtering system

Details Digital filtering system Digital filtering system

1998-04-07

1999-11-16

Mai, Tan V.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708316, G06F 1710

Patent

active

059874848

ABSTRACT:
A digital filtering system is fed by input signal and produces an output signal from either a relatively low bandwidth filter or a relatively wide bandwidth filter selectively in accordance with the time rate of change in the input signal. The output signal is produced by the relatively low bandwidth filter when the input signal is slowly varying and the output signal is produced by the relatively wide bandwidth filter when the input signal changes rapidly, after which the output is produced from the relatively low bandwidth filter when the input signal reverts to its more slowly varying characteristics.

REFERENCES:
patent: 3755750 (1973-08-01), Heberling
patent: 4506233 (1985-03-01), Englund, Jr.
patent: 4771249 (1988-09-01), Burch et al.
patent: 5301134 (1994-04-01), Maruyama
patent: 5408202 (1995-04-01), Shirazi et al.
patent: 5440503 (1995-08-01), Maruyama
patent: 5499392 (1996-03-01), Grunwell
patent: 5539355 (1996-07-01), Nakamura
patent: 5796757 (1998-08-01), Czaja

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