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:
May. 22, 1984
Filed:
Aug. 25, 1981
Applicant:
Inventor:
Robert V Dickinson, Berkeley Heights, NJ (US);
Assignee:
E-Com Corporation, Milford Square, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358114 ; 358 84 ; 358 86 ; 358115 ; 358118 ; 455-4 ; 455-5 ;
Abstract
An expandable, multipurpose digital and analog communications system in which a plurality of remote interrogator units connected in a branch of the system are isolated from one another by band stop filters to permit simultaneous polling without interference with other operations. Also disclosed is a premium service control unit which makes uses of a frequency agile oscillator.