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.

Date of Patent:
May. 18, 1982

Filed:

Jan. 26, 1981
Applicant:
Inventors:

Roy M Stulting, Scottsdale, AZ (US);

Stanley W Attwood, Scottsdale, AZ (US);

Assignee:

Motorola Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 / ; 324 / ; 328140 ;
Abstract

The Doppler is converted to digital or a square wave signal after which a first counter is used to count total full Doppler cycles by counting the positive going zero crossings, a second counter counts relatively high frequency pulses from the beginning of each cycle until the end or until the reception of a read-out pulse, whichever occurs sooner, and a third counter counts the high frequency clock pulses from the beginning of each cycle until the end. When the read-out pulse is received the partial Doppler cycle count in the second counter is divided by the full Doppler cycle count in the third counter to obtain a fraction indicative of the partial Doppler cycle, which fraction is added to the total full Doppler count in the first counter to obtain a measure of Doppler cycles from the start until the read-out pulse is received.


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