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:
Apr. 12, 2016
Filed:
Dec. 16, 2010
Raunak Pandya, Andhra Pradesh, IN;
Abhishek Tiwari, Andhra Pradesh, IN;
Rama Krishna Amaravadi, Andhra Pradesh, IN;
Raunak Pandya, Andhra Pradesh, IN;
Abhishek Tiwari, Andhra Pradesh, IN;
Rama Krishna Amaravadi, Andhra Pradesh, IN;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
In a computing device a domain name system (DNS) query is generated and sent, and a check is made as to whether a verified DNS response to the DNS query is received. The computing device is determined to be inside a particular network if a verified DNS response is received, and is determined to be outside that particular network if a verified DNS response is not received. A DNS response can be determined to be verified if both the DNS response has an expected value and the DNS response is digitally signed by a trusted authority, and otherwise can be determined to be not verified.