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:
Oct. 15, 1985
Filed:
May. 04, 1983
Edmund M Meitner, Cote St. Luc, CA;
Howard Burman, Montreal, CA;
Amber Electro Design, Inc., Montreal, CA;
Abstract
A magnetic pickup which contains both resistance and stray capacitance is terminated by a negative impedance of a kind which compensates for the stray capacitance and part of the resistance, and causes a pole to be produced at a low frequency. This results in the formation of a virtually perfect integrator. Preferably the integrator is followed by a pedestal filter for receiving the output signal of the integrator, and has a zero phase shift point at a predetermined frequency higher than the frequency of the pole and within the frequency band, and has an intermediate frequency band transfer characteristic which increases at a rate of approximately equal to the decrease in transfer characteristic of integrator.