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, 2010
Filed:
Jul. 17, 2007
Francesco Carrara, Acireale, IT;
Calogero Davide Presti, Caltanissetta, IT;
Antonino Scuderi, Misterbianco, IT;
Carmelo Santagati, Misterbianco, IT;
Giuseppe Palmisano, San Giovanni La Punta, IT;
Francesco Carrara, Acireale, IT;
Calogero Davide Presti, Caltanissetta, IT;
Antonino Scuderi, Misterbianco, IT;
Carmelo Santagati, Misterbianco, IT;
Giuseppe Palmisano, San Giovanni La Punta, IT;
ST-Ericsson SA, Geneva, CH;
Abstract
A device for comparing the peak value of a periodic voltage signal or a linear combination of periodic voltage signals with a reference voltage includes a reference transconductor element for converting the reference voltage into a reference current, respective transconductor elements for converting each of the periodic voltage signals into respective periodic current signals, a current-comparison node for comparing the respective periodic current signals with the reference current, generating a comparison current as a difference between the sum of the aforesaid periodic current signals and the reference current, a current rectifier supplied with the comparison current, a hold capacitor charged with the output current of the current rectifier, and a discharge-current generator in parallel to the hold capacitor. The voltage across the capacitor indicates of the outcome of the comparison between the peak value of the periodic voltage signal or the linear combination of periodic voltage signals and the reference voltage.