The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1994
Filed:
Jun. 22, 1992
William Craelius, Somerset, NJ (US);
Nicki A Newby, Somerset, NJ (US);
Other;
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.