Abstract: An ambulatory cardiac analyzer and recorder includes an allocation and priority scheme which has quotas for classes of QRS events and priority between types of events within a class. The quality of a low priority event is used to replace a similar type of event when the memory is full. The peak detection, QRS identification and classification circuit process and correlate information from both of two input channels. This allows quicker and more accurate determination of QRS waveforms as well as typical QRS waveforms.
Type:
Grant
Filed:
November 15, 1983
Date of Patent:
April 22, 1986
Assignee:
Medicomp, Inc.
Inventors:
Atul P. Shah, James L. Reuss, Toni Guckert, Jeffrey J. Clesius
Abstract: An electrocardiographic amplifier having an integrator in the feedback loop between the amplifier's input and output whose time constant is varied by the duty cycle of a series switch to vary the low frequency 3 dB roll-off point as a function of the detected low frequency noise in the amplifier output signal. A capacitor is switched in parallel with the inverting feedback resistor to lower the high frequency 3 dB roll-off point in response to detected high frequency noise.
Type:
Grant
Filed:
November 12, 1982
Date of Patent:
January 22, 1985
Assignee:
Medicomp, Inc.
Inventors:
Charles A. Little, III, Raymond B. Patterson, III