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:
Jun. 23, 1987
Filed:
Sep. 11, 1985
Gilbert H Forehand, Duncan, OK (US);
Michael J Lynch, Duncan, OK (US);
Halliburton Company, Duncan, OK (US);
Abstract
An analog-to-digital conversion technique utilizes an oscillator which provides a primary oscillating signal that drives a counter and that generates a derived signal having a frequency less than the primary signal. The derived signal is integrated for use in comparing against the threshold voltage defining the analog signal to be converted. The comparison of the integrated and the threshold signals provides a pulse width modulated signal which is related to the primary signal. The pulse width modulated signal gates the counter for generating a count at the rate established by the primary signal. This output can be communicated to a microcomputer or other device.