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:
Aug. 19, 1980
Filed:
Nov. 01, 1978
Applicant:
Inventors:
Manfred Bohm, Stuttgart, DE;
Gunther Peuker, Stuttgart, DE;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
343 / ; 343 / ;
Abstract
With the increase in air traffic, it has become increasingly important to transmit more information (e.g. addresses, position data, altitude and angle values) between aircraft and ground. This is done by modulating the phase of the carrier wave of DME or TACAN signals, the phase modulation being so chosen in the invention that the predetermined bandwidth of a DME/TACAN channel is not exceeded as a result of the phase modulation. In this way, full compatibility with existing DME or TACAN systems is achieved.