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US 7,257,112 B2Granted
Receiver directed power management for WLAN receiver
AssigneeTexas Instruments Incorporated
InventorJie Liang
Life of this patent
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Abstract
A method of conserving power in a WLAN receiver is provided wherein processing tasks that need only to be operated for a brief period of time during the reception of a received packet are enabled only during the brief period of time. The enabling includes providing multiple power control signals that are controlled by a state machine for enabling and disabling the processing tasks.
Claims6
A method of conserving power in a WLAN receiver comprising:
- determining packet processing tasks that need only to be operated for a brief period of time during the reception of a received packet wherein said packet processing tasks include automatic gain control, radio control setting and frequency offset processing;
- enabling said packet processing tasks only during said brief period of time of said received packet;
- and
- disabling said packet processing tasks after each has completed its processing task for each packet.
1 more element
A system for conserving power in a WLAN receiver comprising:
- a plurality of modules includes automatic gain control, radio control setting and frequency offset processing for performing processing tasks that occupy only a brief period for the receiver for each packet, wherein said packet processing tasks include automatic gain control, radio control setting and frequency offset processing;
- a clock with multiple clock zones for the multiple tasks;
- a state machine for determining the state of signal processing of a received packet;
- said clock coupled to said modules and responsive to the state of the state machine for disabling said modules when processing is complete for each packet.
1 more element
Dependencies are inferred from the claim text.