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. 22, 2009
Filed:
Jun. 15, 2006
Partha Sarathy Murali, Hyderabad, IN;
Chandra Sekhar Ponnamanda Venkata, Hyderabad, IN;
Dharani Naga Sailaja Sankabathula, Vijayawada, IN;
Satya Rao, Hyderabad, IN;
Partha Sarathy Murali, Hyderabad, IN;
Chandra Sekhar Ponnamanda Venkata, Hyderabad, IN;
Dharani Naga Sailaja Sankabathula, Vijayawada, IN;
Satya Rao, Hyderabad, IN;
Redpine Signals, Inc., San Jose, CA (US);
Abstract
During the preamble interval of a wireless packet, a receiver estimates the SINR of the preamble, and also examines the packet header to determine the data rate, length, and destination address. If the SINR as determined from the preamble is below a threshold, or if the SINR combined with the data rate from the packet header is below a threshold, the receiver is powered down for the duration of the current packet. Additionally, if the packet header bears a destination address for a different station from the one receiving it, the receiver is powered down for the duration of the packet. In this manner, the receiver power is only used to receive packets that have sufficient SINR to be correctly received for their data rate, or are destined for the present station. The reduction in power consumption results in longer battery life for the station.