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:
Sep. 26, 2017
Filed:
Feb. 29, 2016
Altera Corporation, San Jose, CA (US);
Nelson Gaspard, San Jose, CA (US);
Yanzhong Xu, Santa Clara, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A circuit may include a ring oscillator circuit and monitoring circuitry. The ring oscillator circuit has a group of inverters in a loop, whereby the group of inverters includes first, second, and third output nodes. The monitoring circuitry may monitor for error events in a signal that has passed through the inverters from any one of the first, second, or third output nodes, and may generate first and second monitoring circuitry outputs. The circuit may further include an error correction circuit that produces an error correction output based on the first and second monitoring circuitry outputs. Accordingly, the monitoring circuitry may generate first and second updated monitoring circuitry outputs based on the error correction output. The first and second updated monitoring circuitry outputs may be logically combined using a logic circuit to reset the signal that has passed through the loop.