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:
Nov. 08, 1977
Filed:
Apr. 01, 1976
Applicant:
Inventors:
James Eugene Holladay, Jr, Salt Lake City, UT (US);
Billie Mike Spencer, Bountiful, UT (US);
Assignee:
Sperry Rand Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343 / ;
Abstract
A ranging system utilizing continuous-wave radio frequencies having unique relationships which occur at a predictable rate. A radio transmission system used for transmitting data has a portion of its baseband used to determine range to a target. Three frequencies within the portion of the baseband are so chosen that there is a periodic phase conicidence of the three frequencies which occurs at predetermined intervals. The phase coincidence is detected on transmission to and from a target to provide range information.