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. 01, 1989
Filed:
Apr. 29, 1987
Applicant:
Inventors:
Roland Kueng, Hombrechtikon, CH;
Hanspeter Widmer, Zurich, CH;
Assignee:
Zellweger Tellecommunications Ltd., Hombrechtikon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
340825210 ; 340825520 ; 340825580 ; 370100 ; 375111 ; 455 51 ;
Abstract
A connection (link setup) between individual stations of a radio network may be carried out fully automatically, and even with poor transmission quality, only the wanted stations are activated. A call signal includes a synchronization signal having narrow band, mark and space signals which form the component signals of a diverse pair of signals. A synchronization signal receiver independently detects and evaluates both of the component signals of the diverse pair as well as comparing the results thereof, with means of digital signal processing.