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US RE41,183 E1Granted
System and method for WLAN signal strength determination
OwnerHamid Najafi, Xiping Wanginventors
Life of this patent
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Abstract
A method for WLAN signal strength determination comprises receiving a WLAN RF signal; converting the WLAN RF signal to a voltage proportional to the signal; comparing the voltage to a first reference voltage; and outputting data corresponding to WLAN RF signal strength if the voltage is greater than the first reference voltage.
Claims29
A method, comprising:
- receiving a WLAN RF signal;
- converting the WLAN RF signal to a voltage proportional to the signal;
- comparing the voltage to a first reference voltage;
- outputting data corresponding to WLAN RF signal strength if the voltage is greater than the first reference voltage;
- comparing the voltage to a second reference voltage;
- and
- outputting additional data corresponding to WLAN RF signal strength if the voltage is greater than the second reference voltage.
4 more elements
A WLAN RF signal strength determination system, comprising:
- means for receiving a WLAN RF signal;
- means for converting the WLAN RF signal to a voltage proportional to the signal;
- means for comparing the voltage to a first reference voltage;
- means for outputting data corresponding to WLAN RF signal strength if the voltage is greater than the reference voltage;
- means for comparing the voltage to a second reference voltage;
- and
- means for outputting additional data corresponding to WLAN RF signal strength if the voltage is greater than the second reference voltage.
4 more elements
A computer-readable medium having stored thereon instructions to cause a computer to execute a method, the method comprising:
- converting a received WLAN RF signal to a voltage proportional to the signal;
- digitizing the converted voltage;
- comparing the digitized voltage to a first reference voltage;
- outputting data corresponding to WLAN RF signal strength if the digitized voltage is greater than the first reference voltage;
- comparing the digitized voltage to a second reference voltage;
- and
- outputting additional data corresponding to WLAN RF signal strength if the voltage is greater than the second reference voltage.
4 more elements
A WLAN RF signal strength determination system, comprising:
- an antenna capable to receive WLAN RF signals;
- a WLAN detector, coupled to the antenna, capable to convert a received WLAN RF signal into a DC voltage proportional to the strength of the WLAN RF signal;
- an operational amplifier, coupled to the WLAN detector, capable to emit a signal if the DC voltage is greater than a first reference voltage;
- a timer, coupled to the operational amplifier, capable to emit a high voltage pulse upon receipt of a signal from the operational amplifier;
- a LED, coupled to the timer, capable to emit a light upon receipt of the high voltage pulse from the timer;
- a second operational amplifier coupled to the WLAN detector, capable to emit a signal if the DC voltage is greater than a second reference voltage that is higher than the first reference voltage;
- a second timer, coupled to the second operational amplifier, capable to emit a high voltage pulse upon receipt of a signal from the second operational amplifier;
- and
- a second LED, coupled to the second timer, capable to emit a light upon receipt of the high voltage pulse from the second timer.
6 more elements
A wireless local area network (WLAN) radio frequency (RF) signal strength determination system, the system comprising:
- an antenna configured to receive a WLAN RF signal;
- a power detector coupled to the antenna and configured to convert the WLAN RF signal into a direct current (DC) voltage, wherein the DC voltage is proportional to a strength of the WLAN RF signal;
- a comparator coupled to the power detector and configured to emit a first signal if the DC voltage is greater than a first reference voltage and a second signal if the DC voltage is greater than a second reference voltage;
- and
- an output interface coupled to the comparator and configured to indicate the strength of the WLAN RF signal.
2 more elements
A mobile phone comprising:
- a receiver configured to receive a wireless local area network (WLAN) radio frequency (RF) signal;
- a converter coupled to the receiver and configured to convert the WLAN RF signal into a direct current (DC) voltage;
- a processor coupled to the converter and configured to compare the DC voltage to a first reference voltage and a second reference voltage;
- and
- a display coupled to the processor and configured to output a result of the comparison of the DC voltage to the first reference voltage and the second reference voltage, wherein the result comprises a strength of the WLAN RF signal.
2 more elements
A computer-readable medium having computer-readable instructions stored thereon, wherein, upon execution by a processor, the computer-readable instructions are configured to cause the processor to:
- convert a received wireless local area network (WLAN) radio frequency (RF) signal into a direct current (DC) voltage, wherein the DC voltage is proportional to the WLAN RF signal;
- compare the DC voltage to a first reference voltage and a second reference voltage;
- generate a first signal if the DC voltage is greater than the first reference voltage, wherein the first signal represents a first strength of the WLAN RF signal;
- and
- generate a second signal if the DC voltage is greater than the second reference voltage, wherein the second signal represents a second strength of the WLAN RF signal.
2 more elements
Dependencies are inferred from the claim text.