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:
Aug. 23, 2011
Filed:
Sep. 15, 2009
Calogero Davide Presti, Caltanissetta, IT;
Francesco Carrara, Acireale, IT;
Antonino Scuderi, Misterbianco, IT;
Guiseppe Palmisano, San Giovanni La Punta, IT;
Calogero Davide Presti, Caltanissetta, IT;
Francesco Carrara, Acireale, IT;
Antonino Scuderi, Misterbianco, IT;
Guiseppe Palmisano, San Giovanni La Punta, IT;
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
A digital amplitude modulator. The digital amplitude modulator is configured to modulate the amplitude of an input carrier signal based on input digital data and generate a corresponding output signal. The digital amplitude modulator includes a first variable gain amplifier for receiving the input carrier signal and generating a corresponding first amplified carrier signal, a second variable gain amplifier for receiving the input digital data and generating corresponding digital amplitude control data and a plurality of selectively activatable amplifier stages. Each amplifier stage receives a replica of the first amplified carrier signal and generates a corresponding second amplified carrier signal when activated. The output signal corresponds to a combination of the second amplified carrier signals generated by the activated amplifier stages.