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:
Sep. 08, 1987
Filed:
Nov. 19, 1986
Applicant:
Inventor:
Kenneth J Zdunek, Schaumburg, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 17 ; 455 38 ; 455 53 ; 370 82 ; 370 94 ; 3701101 ;
Abstract
The present invention contemplates an improved dispatch trunked radio system which provides for individual subscriber to subscriber communication as well other enhanced trunking features. An expanded 'dual-word' signalling protocol provides an improvement over prior 'single word' signalling protocols by increasing the versatility of commands which may be communicated between the components of the trunked radio system. The 'dual-word' signalling protocol of the present invention remains compatible with prior 'single-word' subscriber units.