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. 04, 1980
Filed:
Nov. 29, 1978
Applicant:
Inventors:
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
3431 / ; 3431 / ;
Abstract
An aircraft landing-guiding apparatus having an antenna system constituted by a plurality of antenna elements arranged in a line and intersecting the course of a runway substantially at right angles at the lengthwise center of the runway. Phases of sideband signals and carrier signals are shifted at rates having such relationship that sideband patterns and carrier patterns are sent forth from the antenna system at prescribed horizontal angles to the course of the runway.