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.:

US 7548725 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 16, 2009

Filed:

Sep. 23, 2002
Applicant:

Richard E. Sklar, Huntington Beach, CA (US);

Inventor:

Richard E. Sklar, Huntington Beach, CA (US);

Assignee:

Rockwell Collins, Inc., Cedar Rapids, IA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/185 (2006.01);
U.S. Cl.
CPC ...
Abstract

A demonstration telecommunication system can be utilized with a public switched telephone network (PSTN) operating in a first format. The demonstration telecommunication system allows a telecommunication network operating in a second format to communicate with the PSTN. The first format is different than the second format. The demonstration communication system includes a null bearer system including a PSTN interface for the PSTN and a telecommunication network interface for the telecommunication network. The null bearer system can be utilized with an avionic telephone system.


Find Patent Forward Citations

Loading…