Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals
First Claim
1. Apparatus for processing electrocardial and other bioelectric signals received from an external measuring device, comprising:
- port means connectable to said external measuring device;
input channel means adapted to receive a data signal from said measuring device;
compression circuit means for compressing the data signal from said input channel means so that the compressed data signal includes only changes in amplitudes at particular points;
memory means for storing said compressed data signal; and
microprocessor means for controlling the storage of said compressed data signal in said memory.
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Accused Products
Abstract
Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals, includes a port for connecting an external measuring device; first and second differential input channels for receiving a data signal from the measuring device and for amplifying and filtering the data signal; a compression circuit for compressing the data signal from the input channels so that the compressed data signal includes only changes in amplitudes at particular points, along with a measure of elapsed time since a previous change in amplitude at the particular points, thereby omitting redundant points of the data signal; a random access memory for storing the compressed data signal; a microprocessor for controlling the storage of the compressed data signal in the memory; a power management circuit for turning power to the apparatus ON and OFF at predetermined intervals; and a position switch for indicating the position of a person wearing the apparatus relative to a vertical position.
183 Citations
20 Claims
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1. Apparatus for processing electrocardial and other bioelectric signals received from an external measuring device, comprising:
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port means connectable to said external measuring device; input channel means adapted to receive a data signal from said measuring device; compression circuit means for compressing the data signal from said input channel means so that the compressed data signal includes only changes in amplitudes at particular points; memory means for storing said compressed data signal; and microprocessor means for controlling the storage of said compressed data signal in said memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. Apparatus for processing electrocardial and other bioelectric signals from an external measuring device, comprising:
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input channel means adapted to receive a data signal from said measuring device; compression circuit means coupled to said input channel means for compressing the data signal from said input channel means so that the compressed data signal includes only changes in amplitudes at particular points, said compression circuit means being adapted to omit redundant points of the signal supplied thereto during compression of said data signal; memory means for storing said compressed data signal; and microprocessor means for controlling the storage of said compressed data signal in said memory means.
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Specification