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:
Sep. 28, 1976
Filed:
Feb. 24, 1975
Applicant:
Inventor:
Patrick G Phillipps, Newton, MA (US);
Assignee:
Brattle Instrument Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128 / ; 128 / ; 235181 ;
Abstract
Circuitry for refinement of fetal heart signals from an ultrasonic (or other mechanical energy) transducer, featuring improved signal processing circuitry connected to the transducer to convert useful information-carrying energy in the transducer output into a refined electrical signal, and improved correlation circuitry for providing an output to a cardiotachometer.