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:
Jan. 20, 1981
Filed:
Dec. 06, 1978
Harvey G Randall, Oconomowoc, WI (US);
General Electric Company, Schenectady, NY (US);
Abstract
Signals associated with heart beats occurring at the normal rhythm of the heart and also with extrasystoles or PVCs are fed to a one-shot multivibrator which is enabled to produce clock signals corresponding with incoming heart activity indicating signals such as R-wave signals provided the R-wave signals are spaced in time to correspond with normal heart rhythm. An analog signal corresponding with average heart rate is fed to an integrator. The ramp output of the integrator is fed to one input of a comparator and a reference signal representative of a percentage of time between normal rhythm R-waves is fed to the other input of the comparator. Until the two input signals cross over, the output signal of the comparator is such as to inhibit output of a clock signal from the multivibrator so R-wave signals associated with extrasystoles occurring during the integration or lockout period are not gated through the multivibrator. The clock signals corresponding with predictable rhythmically occurring heart activity signals are used for gating image forming devices and image data devices on and off at identical times in a sequence of heart cycles to produce a stop-motion effect.