Signal processing apparatus and high resolution electrocardiograph equipment including same
First Claim
1. Signal processing apparatus particularly useful in electrocardiograph equipment for processing ECG signals detected by electrodes placed against the subject'"'"'s body, comprising:
- (A) data amplifier means including;
(1) a first amplifier receiving the detected ECG signals from the electrodes and producing first amplified ECG data signals according to the gain of said first amplifier, and(2) a second amplifier, having a substantially higher gain than said first amplifier, also receiving the detected ECG signals from the electrodes independently of said first amplifier and producing second amplified ECG data signals,(B) signal averaging means;
(C) a control panel including manual selector means enabling the manual selection, for inputting into said signal averaging means and outputting to the electrocardiograph, either said first amplified ECG data signals from said first amplifier, or said second amplified ECG data signals from said second amplifier; and
(D) a triggering circuit having a third amplifier receiving the detected ECG signals from said electrodes independently of said data amplifier means, and producing trigger pulses therefrom; and
means for feeding said trigger pulses to said signal averaging means for triggering same.
1 Assignment
0 Petitions
Accused Products
Abstract
Signal processing apparatus particularly useful in electrocardiograph equipment comprises a conventional ECG amplifier channel, a high-gain ECG amplifier channel, signal averaging means, and a control panel enabling the manual selection, for inputting into the signal averaging means and outputting to the electrocardiograph, either the ECG signals from the conventional amplifier or those from the high-gain amplifier. The high-gain amplifier further includes a passive filter for removing the low-frequency components. According to another feature, the signal averaging means inlcudes a digital microcomputer providing time-base expansion; and according to a still further feature, the apparatus includes a further amplifier producing trigger pulses to the signal averaging means for triggering same, thereby enabling an optimum electrode configuration to be selected producing optimum triggering.
100 Citations
17 Claims
-
1. Signal processing apparatus particularly useful in electrocardiograph equipment for processing ECG signals detected by electrodes placed against the subject'"'"'s body, comprising:
-
(A) data amplifier means including; (1) a first amplifier receiving the detected ECG signals from the electrodes and producing first amplified ECG data signals according to the gain of said first amplifier, and (2) a second amplifier, having a substantially higher gain than said first amplifier, also receiving the detected ECG signals from the electrodes independently of said first amplifier and producing second amplified ECG data signals, (B) signal averaging means; (C) a control panel including manual selector means enabling the manual selection, for inputting into said signal averaging means and outputting to the electrocardiograph, either said first amplified ECG data signals from said first amplifier, or said second amplified ECG data signals from said second amplifier; and (D) a triggering circuit having a third amplifier receiving the detected ECG signals from said electrodes independently of said data amplifier means, and producing trigger pulses therefrom; and
means for feeding said trigger pulses to said signal averaging means for triggering same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification