Apparatus for maintaining signals within a given amplitude range

Details Apparatus for maintaining signals within a given amplitude range Apparatus for maintaining signals within a given amplitude range

1977-11-16

1979-05-08

Kamm, William E.

Surgery

Truss

Pad

D61B 504

Patent

active

041530497

ABSTRACT:
Displayed ECG waveforms are maintained within acceptable aspect ratios without rapid fluctuation in amplitude by rapidly decreasing the gain of the signal channel by discrete amounts as the peak-to-peak amplitude of the ECG signal increases through each of a number of levels and by increasing the gain of the signal channel only after the peak-to-peak amplitude of the ECG signals has dropped to a given fraction for a predetermined period of time.

REFERENCES:
patent: 3442269 (1969-05-01), Druz
patent: 3547108 (1970-12-01), Seiffert
patent: 3579138 (1971-05-01), Harris et al.
patent: 3939824 (1976-02-01), Arneson et al.

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