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. 18, 2012
Filed:
Apr. 05, 2007
Paramvir Bahl, Issaquah, WA (US);
Ranveer Chandra, Kirkland, WA (US);
Kevin Chin, Bellevue, WA (US);
Alastair Wolman, Seattle, WA (US);
Yuvraj Agarwal, San Diego, CA (US);
Paramvir Bahl, Issaquah, WA (US);
Ranveer Chandra, Kirkland, WA (US);
Kevin Chin, Bellevue, WA (US);
Alastair Wolman, Seattle, WA (US);
Yuvraj Agarwal, San Diego, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques for increasing the battery life on a mobile device by decreasing the energy consumption of the mobile device's wireless fidelity (Wi-Fi) interface are described. In one embodiment, the mobile device's Wi-Fi interface is automatically disabled when the device is not engaged in a voice over internet protocol (VoIP) call via the Wi-Fi interface. When a VoIP call is initiated on the device, or when the device receives a wake up call from a server via its Cellular interface, the Wi-Fi interface is automatically enabled. Using its Wi-Fi interface, the mobile device then connects to an IP-based network via a Wi-Fi access point. The server then initiates a direct call, wherein VoIP technology is used by the mobile device, between the mobile device and a VoIP calling device.