Apparatus and method for detecting wireless local area network signals
AssigneeRaytac Corp.
InventorsJack Wu, Venson Liao, Chaowu Chien, Dennis Lin
Life of this patent
Estimating the term…
Abstract
An apparatus and method for detecting wireless local area network (WLAN) signals scans an area for radio-wave signals that meet IEEE802.11a, 802.11b, and 802.11g standards, and converts any detected radio-wave signal into a received signal strength indicator (RSSI) data, which is stored, recorded, and compared by a control unit with WLAN properties to determine whether there is a WLAN set up in the scanned area, or bearings and strength of any detected WLAN signal, making the detection highly discriminating and sensitive.
Claims4
An apparatus for detecting wireless local area network (WLAN) signals, comprising:
- an on-off control unit for controlling a supply of driving power source to said detecting apparatus;
- a control unit for recording and comparing data of radio-frequency signals;
- a radio control unit for converting a detected radio-frequency signal into an RSSI (received signal strength indicator) data;
- a lamp display unit for displaying any result from the comparison made by said control unit;
- and
- a battery for storing power supply needed to drive said detecting apparatus.
A method for detecting WLAN signals, comprising the steps of (a) powering on an apparatus for detecting WLAN signals;
- (b) updating frequencies stored in a radio control unit of said detecting apparatus to those possibly existing in WLANs;
- (c) checking for existence of radio-wave signals in a detected area that meet IEEE802.11a, 802.11b, and 802.11g standards;
- (d) reading any detected radio wave;
- (e) calculating and verifying whether there is any detected radio wave meeting WLAN properties;
- (f) recording bearings and strength of any verified WLAN signal;
- (g) verifying all existing frequencies have been checked in step (c);
- and (h) displaying any detected state.
Dependencies are inferred from the claim text.