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:
Feb. 08, 2005
Filed:
Oct. 06, 2003
Pierpaolo DE Laurentiis, Milan, IT;
Luciano Tomasini, Monza, IT;
Claudio Cattaneo, Colle Brianza, IT;
Pierpaolo De Laurentiis, Milan, IT;
Luciano Tomasini, Monza, IT;
Claudio Cattaneo, Colle Brianza, IT;
STMicroelectronics S.r.l., Agarte Brianza, IT;
Abstract
A method for amplifying a digital signal representative of data to be transmitted by a line driver with pre-emphasis over an output line is provided. The gain of the line driver is varied between an upper value to coincide with switching of the digital signal and a lower value in absence of the digital signal switching. In particular, the varying includes amplifying the digital signal with a first gain for generating an amplified digital signal, delaying the digital signal with a predetermined delay for generating a delayed digital signal, and amplifying the delayed digital signal with a second gain for generating a delayed and amplified digital signal. An ouput signal corresponding to a difference between the amplified digital signal and the delayed and amplified digital signal is output over the output line.