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:
Apr. 15, 2003
Filed:
May. 25, 1999
Scott D. Miller, Upland, CA (US);
Ralph Phillipp, Huntington Beach, CA (US);
Curtis J. Larson, Cedar Rapids, IA (US);
James L. Bartlett, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
An in-flight entertainment system provides live video/audio programming to passengers and operators over an aircraft video/audio distribution system. The programming signals are derived from intermediate frequency (IF) signals that are produced by frequency downconverting satellite broadcast signals and supplied over a pair of IF signal output cables. The control signals and the DC power used in the frequency downconversion process are received over the same IF signal output cables, but in a reverse direction. A bias-T connector is provided in each of the IF signal output cables to extract out the control signals and the DC power.