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:
Mar. 17, 2009
Filed:
Apr. 04, 2007
David Mcclure, Carrollton, TX (US);
Robert Mikyska, Dolni Dobrouc, CZ;
David McClure, Carrollton, TX (US);
Robert Mikyska, Dolni Dobrouc, CZ;
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
A power-on reset circuit. The power-on reset circuit includes a switch, a current source coupled between a first potential and a switch first contact; a resistive device having a resistive-device first contact coupled to the first potential; a first module coupled between a second potential and a switch second contact; a second module coupled between the second potential and resistive-device second contact; and an inverter having an inverter input coupled to the resistive-device second contact. Current through the second module mirrors current through the first module. If a first mirrored potential of the second potential present on a switch control contact is greater than a preselected value, the switch first contact is coupled to the switch second contact. Otherwise, the switch first contact is decoupled from the switch second contact.