Method and system for early termination of receive correlation window for bluetooth communication
US8374652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2011 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Jun 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/71346
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for terminating a receive correlation window of a receiving wireless device includes a radio frequency receiver configured to open a receive correlation window having a predetermined duration and an energy measurement circuit configured to measure a radio frequency energy level ambient to the wireless receiver. A comparator is included that is configured to determine, based on the measured radio frequency energy level, whether or not a signal is being transmitted from a nearby wireless device. The receiver is further configured to close the receive correlation window before the predetermined duration is reached in response to a determination by the comparator that no signal is being transmitted by a nearby device. If a signal is being transmitted, then the receive correlation window is allowed to proceed uninterrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.