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:
Jan. 26, 1999
Filed:
Jul. 25, 1996
Applicant:
Inventor:
Robert D Briskman, Bethesda, MD (US);
Assignee:
CD Radio Inc., Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
375200 ; 375208 ; 375211 ; 455 131 ;
Abstract
A digital radio broadcasting system using spread spectrum modulation transmitted from both geosynchronous satellites and terrestrial repeater stations provides multi-program audio services to mobile and fixed user receivers over a large geographical area in an ubiquitous manner.