Methods for identification of IEEE 802.11b radio signals
First Claim
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1. A method for operating a Bluetooth receiver, the method comprising:
- sampling energy levels at selected frequencies within a frequency spectrum;
comparing the sampled energy levels to an energy distribution pattern for a wideband signal; and
identifying a presence of the wideband signal if the sampled energy levels match the energy distribution pattern.
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Abstract
In one embodiment, the invention provides a method for operating a Bluetooth receiver. The method comprises sampling energy levels at selected frequencies within a frequency spectrum; comparing the sampled energy levels to an energy distribution pattern for a wideband signal; and identify a presence of the wideband signal if the sampled energy levels match the energy distribution pattern.
53 Citations
22 Claims
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1. A method for operating a Bluetooth receiver, the method comprising:
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sampling energy levels at selected frequencies within a frequency spectrum;
comparing the sampled energy levels to an energy distribution pattern for a wideband signal; and
identifying a presence of the wideband signal if the sampled energy levels match the energy distribution pattern. - View Dependent Claims (2, 3, 4, 5)
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6. A method for operating a Bluetooth receiver, the method comprising
receiving a plurality of signals on a particular channel; -
measuring timing information relating to the signals; and
determining a source of the signals based on the timing information. - View Dependent Claims (7, 8, 9)
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10. A method for operating a Bluetooth receiver, the method comprising:
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identifying the SYNC word of an 802.11x signal;
storing the SYNC word;
receiving a signal of unknown origin; and
correlating the signal of unknown origin with the stored SYNC word to determine if the unknown signal is an 802.11x signal. - View Dependent Claims (11)
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12. A method comprising:
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receiving a 1 MHz wide signal on a predefined channel of a Bluetooth receiver;
differentially demodulating the 1 MHz wide signal to obtain a sequence of bits;
comparing the sequence of bits to a stored code; and
identifying the 1 MHz signal as being part of an 802.11x signal if the sequence of bits and the stored code match. - View Dependent Claims (13)
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14. A Bluetooth receiver comprising:
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a component to sample energy levels at selected frequencies within a frequency spectrum;
a component to compare the sampled energy levels to an energy distribution pattern for a wideband signal; and
a component to identify a presence of the wideband signal if the sampled energy levels match the energy distribution pattern. - View Dependent Claims (15)
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16. A Bluetooth receiver comprising:
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a component to receive a plurality of signals on a particular channel;
a component to measure timing information relating to the signals; and
a component to determine a source of the signals based on the timing information. - View Dependent Claims (17, 18)
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19. A Bluetooth receiver comprising:
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a component to identify the SYNC word of an 802.11x signal;
a component to store the SYNC word;
a component to receive a signal of unknown origin;
a component to correlate the signal of unknown origin with the stored SYNC word to determine if the unknown signal is an 802.11x signal. - View Dependent Claims (20)
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21. A Bluetooth receiver comprising:
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a component to receive a 1 MHz wide signal on a predefined channel of the Bluetooth receiver;
a component to differentially demodulate the 1 MHz wide signal to obtain a sequence of bits;
a component to compare the sequence of bits to a stored code; and
a component to identify the 1 MHz signal as being part of an 802.11x signal if the sequence of bits and the stored code match. - View Dependent Claims (22)
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Specification