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:
Jul. 20, 2004
Filed:
Feb. 05, 1999
Robert Louis Cupo, Eatontown, NJ (US);
E Anthony Hinds, Old Bridge, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
An FM transmitter forms a Digital Audio Broadcasting (DAB) signal comprising a digital FM signal and an analog FM signal. The FM transmitter comprises an RF nonlinear amplifier coupled to a first antenna and an RF linear amplifier coupled to a second antenna. The RF non-linear amplifier and antenna transmit the analog FM signal. The RF linear amplifier and antenna transmit the digital FM signal. The FM transmitter controls the signal transmissions such that the transmitted analog FM signal and the transmitted digital FM signal are combined, or multiplexed, together in the channel itself (here, the atmosphere) to form the DAB signal.