WO2008096924A1 - Apparatus and method for monitoring output signal of wireless communication device - Google Patents
Apparatus and method for monitoring output signal of wireless communication device Download PDFInfo
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- WO2008096924A1 WO2008096924A1 PCT/KR2007/001048 KR2007001048W WO2008096924A1 WO 2008096924 A1 WO2008096924 A1 WO 2008096924A1 KR 2007001048 W KR2007001048 W KR 2007001048W WO 2008096924 A1 WO2008096924 A1 WO 2008096924A1
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- 238000004891 communication Methods 0.000 title claims abstract description 79
- 230000006854 communication Effects 0.000 title claims abstract description 79
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000010295 mobile communication Methods 0.000 description 13
- 238000011161 development Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
Definitions
- the present invention relates to an apparatus and method for monitoring an output signal of a wireless communication device, and more particularly to an apparatus and method for monitoring an output signal of a wireless communication device, which extracts power values of received radio signals according to each frequency band of the radio signals, and tracks a wireless communication device attempting a communication request or information request, depending on information data set based on power information data according to the use frequency bands of and the distances to wireless communication devices targeted for monitoring.
- Background Art
- an apparatus having an enhanced sensing capability by emitting a jamming signal of a sensed signal band so as to increase an output signal of a mobile communication device which is in use, and a method of restricting com- munication by adjusting a jamming signal after a call signal of a mobile communication device has been sensed have been proposed.
- the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and method for monitoring output signals of various wireless communication devices, which can simultaneously detect the wireless communication devices.
- Another object of the present invention is to provide an apparatus and method for monitoring output signals of various wireless communication devices, which can rapidly detect the wireless communication devices.
- Still another object of the present invention is to provide an apparatus and method for monitoring output signals of wireless communication devices, which can exactly track the wireless communication devices by using pre-stored frequency information according to each wireless communication device and power information according to each interval.
- an apparatus including: a reception unit 10 which contains a reception antenna 11 for receiving a multi-band radio signal, a plurality of amplifiers 12 for amplifying the received signal, and a plurality of band-pass filters 13 for passing only a signal of a preset frequency band; a signal conversion unit 20 which contains a log-scale conversion unit 21 for converting output signals of the band-pass filters 13 into direct voltages proportional to log values thereof, and a digital conversion unit 22 for converting input analog direct voltages into digital data; a signal determination unit 30 which contains a frequency information storage unit 31 for storing power information data according to the use frequency bands of wireless communication devices and distances thereto, a signal determination controller 32 for determining the value of a received signal according to bands by comparing the received signal with the data of the frequency information storage unit 31, and a key input unit 33 for inputting a control signal to the signal determination controller 32; and a display unit 40 for outputting a result value determined by the signal determination
- FIG. 1 is a block diagram illustrating the configuration of an apparatus for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
- FIG. 2 is a flowchart illustrating the procedure of a method for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
- FIG. 1 is a block diagram illustrating the configuration of an apparatus for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
- the apparatus of the present invention includes: a reception unit
- a signal conversion unit 20 for converting power levels of signals separated by the frequency bands into log-level direct voltages, and outputs the power levels as digital data values
- a signal determination unit 30 for sensing a power value and a type of a wireless communication device by determining digital data corresponding to the received signals according to each frequency band
- a display unit 40 for outputting a result value of the signal determination unit 30.
- the reception unit 10 includes a reception antenna 11 for receiving multi-band radio signals, a plurality of amplifiers 12-1 to 12-n for amplifying the received signals, and a plurality of band-pass filters 13-1 to 13-n for passing only a signal corresponding to a preset frequency band among output signals of the amplifiers 12-1 to 12-n.
- the signal conversion unit 20 includes log-scale converters 21-1 to 21-n according to frequency bands for converting signals separated by frequency bands into direct voltages which are proportional to log values according to the power levels of the separated signals; and digital converters 22-1 to 22-n according to frequency bands for converting analog direct voltage signals into digital data.
- the signal determination unit 30 includes a frequency information storage unit 31, a signal determination controller 32, and a key input unit 33.
- the frequency information storage unit 31 stores information data about power values according to frequency bands and distances, which have been determined according to types of wireless communication devices targeted for monitoring, and stores the type of a determined wireless communication device, a power value, or a sensed time.
- the signal determination controller 32 determines if there is an output signal of a wireless communication device according to each frequency band by comparing output signals of the frequency-band based digital converters 22- 1 to 22-n with the information data of the frequency information storage unit 31, and calculates a power level of an output signal emitted from a wireless communication device sensed through the determination, based on the signal power value stored in the frequency information storage unit 31.
- the signal determination controller 32 selects only the signal of the frequency band of a wireless communication device which is targeted for monitoring according to a key signal input by the user, and outputs the selected signal to the display unit 40, so that it is possible to selectively monitor wireless communication devices.
- the signal determination controller 32 stores the type of a determined wireless communication device, a power value, and a sensed time in the frequency information storage unit 31.
- the key input unit 33 enables the user to select one of the determined wireless communication devices, and creates a control signal for storing the determined wireless communication device, the power value, and the sensed time.
- the display unit 40 outputs the types of wireless communication devices according to frequency bands, which have been determined by the signal determination controller 32, power values of radio signals emitted from the determined wireless communication devices, and distances to the wireless communication devices. It is preferred that information about the power values and distances outputted by the display unit 40 is displayed in the form of a bar graph which is set in consideration of the maximum value and minimum value of output signals of generally-used wireless communication devices, or the information may be displayed as numerical values.
- the frequency information storage unit 31 stores information data about frequency bands of wireless communication devices targeted for monitoring, and information data about power values measured by the output-signal monitoring apparatus according to the present invention when the wireless communication devices emit output signals within a monitoring area targeted by the apparatus. Therefore, the maximum value and minimum value of the signal power values outputted through the display unit 40 become references that represent a monitoring range of the output- signal monitoring apparatus according to the present invention.
- the user when the user carries the monitoring apparatus of the present invention so as to sense and track the output signal of a wireless communication device in a specific area, the user can track the location of the wireless communication device by moving by a distance outputted on the display unit 40 in the direction in which the power value of the output signal is maximized. Accordingly, since the reception unit 10 is configured without a local oscillator and a mixer, it is possible to rapidly sense and process the output signal of the wireless communication device. Therefore, it is possible to sense even an instantaneous output signal of the wireless communication device, and it is possible to rapidly and exactly perform a location tracking process.
- the output signals of various wireless communication devices can be selectively and rapidly tracked by a simple key operation.
- FIG. 2 is a flowchart illustrating the procedure of a method for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
- the method for monitoring output signals of wireless communication devices includes the steps of: receiving radio signals, which have been emitted from wireless communication devices, through a multi-band antenna 11 (SlO); amplifying the received signals by means of a plurality of amplifiers which are allocated according to band-pass filters 13 and are connected in parallel with each other (S20); separating output signals of the amplifiers 12 by signals of corresponding frequency bands, by passing the output signals of the amplifiers 12 through the preset frequency band-pass filter unit (S30); generating direct voltage signals corresponding to power levels of the signals separated by frequency bands (S40); generating digital data according to frequency bands corresponding to the generated direct voltages (S50); when a power level corresponding to the digital data generated in step S50 is equal to or greater than a reference value, based on information data about radio signal power values stored according to each wireless communication device, determining the type of a wireless communication device corresponding to the generated digital data and a distance between the monitoring apparatus and wireless communication device, and determining a power value of
- the type of the wireless communication device sensed in step S70, the power value, and a sensed time may be stored according to the control through the key input unit 33.
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- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Disclosed are an apparatus and a method for monitoring an output signal of a wireless communication device. The apparatus includes: a reception unit 10 which contains a reception antenna 11 for receiving a multi-band radio signal, a plurality of amplifiers 12 for amplifying the received signal, and a plurality of band-pass filters 13 for passing only a signal of a preset frequency band; a signal conversion unit 20 which contains a log-scale conversion unit 21 for converting output signals of the band-pass filters 13 into direct voltages proportional to log values thereof, and a digital conversion unit 22 for converting input analog direct voltages into digital data; a signal determination unit 30 which contains a frequency information storage unit 31 for storing power information according to use the frequency bands of and distances to wireless communication devices targeted for monitoring, a signal determination controller 32 for determining the value of a received signal according to bands by comparing the received signal with the data of the frequency information storage unit 31, and a key input unit 33 for inputting a control signal to the signal determination controller 32; and a display unit 40 for outputting a result value determined by the signal determination controller 32.
Description
Description
APPARATUS AND METHOD FOR MONITORING OUTPUT SIGNAL OF WIRELESS COMMUNICATION DEVICE
Technical Field
[1] The present invention relates to an apparatus and method for monitoring an output signal of a wireless communication device, and more particularly to an apparatus and method for monitoring an output signal of a wireless communication device, which extracts power values of received radio signals according to each frequency band of the radio signals, and tracks a wireless communication device attempting a communication request or information request, depending on information data set based on power information data according to the use frequency bands of and the distances to wireless communication devices targeted for monitoring. Background Art
[2] Now, with the development of various kinds of supplementary service using mobile communication and with the development of technology of mobile communication devices, multimedia service using a mobile communication network and a mobile communication terminal is being recognized as an important information transmission means according to the development of technology and the variety of demands. Meanwhile, with respect to dysfunctions of the mobile communication terminal, there is a social problem of disturbances caused by using a communication terminal, such as a cellular telephone, a pager, etc., occurring in a place where an examination for university entrance or the like is being held. In addition, in spite of the social responsibility to limit the use of the communication terminals in public places, such self- control has not been sufficiently utilized, so that mutual distrust has been amplified.
[3] Prior arts for solving the aforementioned problems are disclosed in Korea Patent
Laid-Open Publication No. 2000-0026148 entitled Method for Detection and Communication Interruption in Mobile Communication Device, Korea Patent Laid-Open Publication No. 2003-0020086 entitled Method and Apparatus for Monitoring Radio Signal in Wireless Communication System, Korea(n) Patent Registration No. 523209 entitled Monitoring Method and Apparatus of Mobile communication Device, etc. According to these prior arts, a call signal received by a mobile communication device passes through a band-pass filter, a local oscillator and a mixer in regular sequence, is subjected to a signal conversion operation, and then field strength is measured from the converted signal. In addition, an apparatus having an enhanced sensing capability by emitting a jamming signal of a sensed signal band so as to increase an output signal of a mobile communication device which is in use, and a method of restricting com-
munication by adjusting a jamming signal after a call signal of a mobile communication device has been sensed have been proposed.
[4] However, since the conventional detection method must employ a local oscillator and a mixer which are controlled according to a monitoring frequency band, it is impossible to rapidly sense an output signal of a mobile communication device, and also it is impossible to simultaneously sense various mobile communication devices which may be used all at once.
[5] Also, since the conventional apparatus and method do not store information data according to each mobile communication device, it is difficult to exactly detect call signals.
Disclosure of Invention Technical Problem
[6] Therefore, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and method for monitoring output signals of various wireless communication devices, which can simultaneously detect the wireless communication devices.
[7] Another object of the present invention is to provide an apparatus and method for monitoring output signals of various wireless communication devices, which can rapidly detect the wireless communication devices.
[8] Still another object of the present invention is to provide an apparatus and method for monitoring output signals of wireless communication devices, which can exactly track the wireless communication devices by using pre-stored frequency information according to each wireless communication device and power information according to each interval. Technical Solution
[9] In order to achieve the above-mentioned objects, there is provided an apparatus including: a reception unit 10 which contains a reception antenna 11 for receiving a multi-band radio signal, a plurality of amplifiers 12 for amplifying the received signal, and a plurality of band-pass filters 13 for passing only a signal of a preset frequency band; a signal conversion unit 20 which contains a log-scale conversion unit 21 for converting output signals of the band-pass filters 13 into direct voltages proportional to log values thereof, and a digital conversion unit 22 for converting input analog direct voltages into digital data; a signal determination unit 30 which contains a frequency information storage unit 31 for storing power information data according to the use frequency bands of wireless communication devices and distances thereto, a signal determination controller 32 for determining the value of a received signal according to bands by comparing the received signal with the data of the frequency information
storage unit 31, and a key input unit 33 for inputting a control signal to the signal determination controller 32; and a display unit 40 for outputting a result value determined by the signal determination controller 32.
Advantageous Effects
[10] As described above, according to the present invention, it is possible to simultaneously and rapidly detect output signals emitted from various wireless communication devices, and to selectively track the wireless communication devices.
[11] Also, according to the present invention, since a signal separation circuit according to frequency bands is included in and used by each wireless communication device, it is possible to rapidly detect various wireless communication devices without a separate frequency shifting operation for monitoring.
[12] In addition, according to the present invention, an intermediate frequency conversion process is not required, a signal processing procedure is shortened, so that it is possible to rapidly and exactly track wireless communication devices. Brief Description of the Drawings
[13] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
[14] FIG. 1 is a block diagram illustrating the configuration of an apparatus for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention; and
[15] FIG. 2 is a flowchart illustrating the procedure of a method for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
[16] 10 : reception unit
[17] 11 : reception antenna
[18] 12(12-1, 12-2, 12-3, 12-n) : amplifier
[19] 13(13-1, 13-2, 13-3, 13-n) : band-pass filter
[20] 20 : signal conversion unit
[21] 21(21-1, 21-2, 22-3, 21-n) : log-scale converter
[22] 22(22- 1 , 22-2, 22-3, 22-n) : digital converter
[23] 30 : signal determination unit
[24] 31 : frequency information storage unit
[25] 32 : signal determination controller
[26] 33 : key input unit
[27] 40 : display unit
Best Mode for Carrying Out the Invention
[28] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, it should be noted that the same elements will be designated by the same reference numerals even though they are shown in different drawings. In addition, in the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
[29] FIG. 1 is a block diagram illustrating the configuration of an apparatus for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
[30] As shown in FIG. 1, the apparatus of the present invention includes: a reception unit
10 for receiving and amplifying radio signals emitted from wireless communication devices and separating the received signals by frequency bands; a signal conversion unit 20 for converting power levels of signals separated by the frequency bands into log-level direct voltages, and outputs the power levels as digital data values; a signal determination unit 30 for sensing a power value and a type of a wireless communication device by determining digital data corresponding to the received signals according to each frequency band; and a display unit 40 for outputting a result value of the signal determination unit 30.
[31] The reception unit 10 includes a reception antenna 11 for receiving multi-band radio signals, a plurality of amplifiers 12-1 to 12-n for amplifying the received signals, and a plurality of band-pass filters 13-1 to 13-n for passing only a signal corresponding to a preset frequency band among output signals of the amplifiers 12-1 to 12-n.
[32] The signal conversion unit 20 includes log-scale converters 21-1 to 21-n according to frequency bands for converting signals separated by frequency bands into direct voltages which are proportional to log values according to the power levels of the separated signals; and digital converters 22-1 to 22-n according to frequency bands for converting analog direct voltage signals into digital data.
[33] The signal determination unit 30 includes a frequency information storage unit 31, a signal determination controller 32, and a key input unit 33. The frequency information storage unit 31 stores information data about power values according to frequency bands and distances, which have been determined according to types of wireless communication devices targeted for monitoring, and stores the type of a determined wireless communication device, a power value, or a sensed time. The signal determination controller 32 determines if there is an output signal of a wireless communication device according to each frequency band by comparing output signals of the frequency-band based digital converters 22- 1 to 22-n with the information data of the frequency information storage unit 31, and calculates a power level of an output
signal emitted from a wireless communication device sensed through the determination, based on the signal power value stored in the frequency information storage unit 31. Also, the signal determination controller 32 selects only the signal of the frequency band of a wireless communication device which is targeted for monitoring according to a key signal input by the user, and outputs the selected signal to the display unit 40, so that it is possible to selectively monitor wireless communication devices. In addition, the signal determination controller 32 stores the type of a determined wireless communication device, a power value, and a sensed time in the frequency information storage unit 31. The key input unit 33 enables the user to select one of the determined wireless communication devices, and creates a control signal for storing the determined wireless communication device, the power value, and the sensed time.
[34] The display unit 40 outputs the types of wireless communication devices according to frequency bands, which have been determined by the signal determination controller 32, power values of radio signals emitted from the determined wireless communication devices, and distances to the wireless communication devices. It is preferred that information about the power values and distances outputted by the display unit 40 is displayed in the form of a bar graph which is set in consideration of the maximum value and minimum value of output signals of generally-used wireless communication devices, or the information may be displayed as numerical values.
[35] Preferably, the frequency information storage unit 31 stores information data about frequency bands of wireless communication devices targeted for monitoring, and information data about power values measured by the output-signal monitoring apparatus according to the present invention when the wireless communication devices emit output signals within a monitoring area targeted by the apparatus. Therefore, the maximum value and minimum value of the signal power values outputted through the display unit 40 become references that represent a monitoring range of the output- signal monitoring apparatus according to the present invention.
[36] Also, when the user carries the monitoring apparatus of the present invention so as to sense and track the output signal of a wireless communication device in a specific area, the user can track the location of the wireless communication device by moving by a distance outputted on the display unit 40 in the direction in which the power value of the output signal is maximized. Accordingly, since the reception unit 10 is configured without a local oscillator and a mixer, it is possible to rapidly sense and process the output signal of the wireless communication device. Therefore, it is possible to sense even an instantaneous output signal of the wireless communication device, and it is possible to rapidly and exactly perform a location tracking process.
[37] Also, since the monitoring does not require shifting a frequency band, the output
signals of various wireless communication devices can be selectively and rapidly tracked by a simple key operation.
[38] FIG. 2 is a flowchart illustrating the procedure of a method for monitoring output signals of wireless communication devices an exemplary embodiment of the present invention.
[39] As shown in FIG. 2, the method for monitoring output signals of wireless communication devices includes the steps of: receiving radio signals, which have been emitted from wireless communication devices, through a multi-band antenna 11 (SlO); amplifying the received signals by means of a plurality of amplifiers which are allocated according to band-pass filters 13 and are connected in parallel with each other (S20); separating output signals of the amplifiers 12 by signals of corresponding frequency bands, by passing the output signals of the amplifiers 12 through the preset frequency band-pass filter unit (S30); generating direct voltage signals corresponding to power levels of the signals separated by frequency bands (S40); generating digital data according to frequency bands corresponding to the generated direct voltages (S50); when a power level corresponding to the digital data generated in step S50 is equal to or greater than a reference value, based on information data about radio signal power values stored according to each wireless communication device, determining the type of a wireless communication device corresponding to the generated digital data and a distance between the monitoring apparatus and wireless communication device, and determining a power value of a received signal corresponding to the sensed wireless communication device (S60); and outputting the type of the wireless communication device, a frequency band, and the power value of the signal as result values of step S60 (S70).
[40] Also, the type of the wireless communication device sensed in step S70, the power value, and a sensed time may be stored according to the control through the key input unit 33.
[41] Although several exemplary embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Accordingly, the scope of the invention should be determined by the following claims and their legal equivalents.
Claims
[1] An apparatus for monitoring an output signal of a wireless communication device, the apparatus comprising: a reception unit 10 for receiving a radio signal emitted from a wireless communication device and separating only a signal of a preset frequency band from the received signal; a signal conversion unit 20 for detecting a power level of the separated signal; a signal determination unit 30 for determining if a wireless communication device targeted for monitoring outputs a radio signal, by comparing the signal power level detected within the preset frequency band with reference power information data of the targeted wireless communication device; and a display unit 40 for outputting a value of the detected signal power level.
[2] The apparatus as claimed in claim 1, wherein the reception unit 10 comprises: a reception antenna 11 for receiving a multi-band radio signal; an amplification unit 12 for amplifying the received signal; and a band-pass filter unit 13 for outputting only the signal of the preset frequency band when an output signal of the amplification unit 12 passes therethrough.
[3] The apparatus as claimed in claim 2, wherein the amplification unit 12 comprises a plurality of amplifiers 12-1 to 12-n which are connected in parallel with each other so as to amplify a multi-band output signal of the reception antenna 11 ; and the band-pass filter unit 13 comprises a plurality of band-pass filters 13-1 to 13-n which separate output signals of the amplifiers 12-1 to 12-n according to preset frequency bands which are mutually different.
[4] The apparatus as claimed in claim 3, wherein the signal conversion unit 20 comprises: a plurality of log-scale converters 21-1 to 21-n for converting signals separated by frequency bands into direct voltage signals which are proportional to log values of power levels of the separated signals; and a plurality of digital converters 22- 1 to 22-n for converting the direct voltage signals into digital data.
[5] The apparatus as claimed in claim 1, wherein the signal determination unit 30 comprises: a frequency information storage unit 31 for storing frequency band information determined according to types of monitoring-targeted wireless communication devices and power information data according to distances; a signal determination controller 32 for determining if there is an output signal of a wireless communication device according to each frequency band by
comparing output signals of the digital converters 22- 1 to 22-n with the information data of the frequency information storage unit 31, and calculating a power level of an output signal which is emitted by a wireless communication device sensed through the determination.
[6] The apparatus as claimed in claim 5, wherein the display unit 40 outputs a type of the sensed wireless communication device, a frequency band, a power level of a sensed signal, and a distance to the sensed wireless communication device; and the frequency information storage unit 31 stores the type of the sensed wireless communication device, a value of the power level, a sensed time according to an instruction of the signal determination controller 32.
[7] A method for monitoring an output signal of a wireless communication device in an apparatus, which comprises: a reception unit 10 for receiving and amplifying a radio signal emitted from the wireless communication device and separating the received signal according to frequency bands; a signal conversion unit 20 for converting power levels of signals separated by the frequency bands into log- level direct voltages, and generating digital data values; a signal determination unit 30 for reading a type and a power value of a wireless communication device sensed by determining an output signal of the signal conversion unit 20 based on pre-stored power values according to frequency bands of and distances to wireless communication devices; and a display unit 40 for outputting a result value of the signal determination unit 30, the method comprising the steps of: receiving radio signals emitted from wireless communication devices (SlO); amplifying the received signals by means of a plurality of amplifiers connected in parallel with each other (S20); separating the amplified signals by signals of corresponding frequency bands, by passing the signals amplified by the amplifiers through a preset frequency bandpass filter unit (S30); generating direct voltage signals corresponding to power levels of the signals separated by the frequency bands (S40); generating digital data according to the frequency bands, the digital data corresponding to the generated direct voltages (S50); when a power level corresponding to the digital data generated in step S50 is equal to or greater than a reference value, determining a power value of a corresponding frequency band (S60); and outputting the frequency band of a signal sensed in step S60 and the power value of the signal (S70).
[8] The method as claimed in claim 7, wherein step S60 further comprises a step of, when the power level corresponding to the digital data generated in step S50 is
equal to or greater than the reference value, determining a type of the wireless communication device by comparing the generated digital data with pre-stored power data according to use frequency bands of and distances to wireless communication devices.
[9] The method as claimed in claim 8, further comprising a step of, after step S70, storing the type of the sensed wireless communication device, the power value and a sensed time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2007-0012420 | 2007-02-07 | ||
| KR1020070012420A KR100872028B1 (en) | 2007-02-07 | 2007-02-07 | Apparatus and Method for Monitoring Output Signal of Wireless Communication Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008096924A1 true WO2008096924A1 (en) | 2008-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2007/001048 WO2008096924A1 (en) | 2007-02-07 | 2007-03-02 | Apparatus and method for monitoring output signal of wireless communication device |
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| Country | Link |
|---|---|
| KR (1) | KR100872028B1 (en) |
| WO (1) | WO2008096924A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595436A (en) * | 2013-11-14 | 2014-02-19 | 中国科学院深圳先进技术研究院 | 300MHz-3GHz full-band multichannel simultaneous communication device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101244835B1 (en) * | 2012-09-17 | 2013-03-25 | 주식회사 디제이피 | Frequency detector |
| KR102606766B1 (en) * | 2018-06-01 | 2023-11-28 | 삼성전자주식회사 | Electro-magnetic sensor and mobile device including the same |
| KR102659414B1 (en) * | 2018-09-10 | 2024-04-23 | 삼성전자 주식회사 | Electronic device comprising of electromagnetic sensor module and method for controlling thereof |
| KR102598097B1 (en) * | 2018-10-19 | 2023-11-03 | 삼성전자 주식회사 | Electronic device including electromagnetic detection circuit and method for controlling external electronic device using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996024991A1 (en) * | 1995-02-08 | 1996-08-15 | Actual Radio Measurement | Remote listenership monitoring system |
| JPH10200467A (en) * | 1997-01-13 | 1998-07-31 | Oki Electric Ind Co Ltd | Alarm system |
| JPH1168681A (en) * | 1997-08-22 | 1999-03-09 | Togami Electric Mfg Co Ltd | Radio wave detection suitability judging method and radio wave alarm |
| KR20060017117A (en) * | 2004-08-20 | 2006-02-23 | 에스케이 텔레콤주식회사 | Apparatus and method for watching request call of mobile terminal |
| KR20070009220A (en) * | 2005-07-15 | 2007-01-18 | 주식회사 대주 | An using detection system of mobile phone and method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100427027B1 (en) * | 2001-09-01 | 2004-04-30 | 주식회사 에치에프알 | Apparatus and Method for monitoring wireless signal for use in a wireless communication system |
-
2007
- 2007-02-07 KR KR1020070012420A patent/KR100872028B1/en not_active IP Right Cessation
- 2007-03-02 WO PCT/KR2007/001048 patent/WO2008096924A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996024991A1 (en) * | 1995-02-08 | 1996-08-15 | Actual Radio Measurement | Remote listenership monitoring system |
| JPH10200467A (en) * | 1997-01-13 | 1998-07-31 | Oki Electric Ind Co Ltd | Alarm system |
| JPH1168681A (en) * | 1997-08-22 | 1999-03-09 | Togami Electric Mfg Co Ltd | Radio wave detection suitability judging method and radio wave alarm |
| KR20060017117A (en) * | 2004-08-20 | 2006-02-23 | 에스케이 텔레콤주식회사 | Apparatus and method for watching request call of mobile terminal |
| KR20070009220A (en) * | 2005-07-15 | 2007-01-18 | 주식회사 대주 | An using detection system of mobile phone and method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595436A (en) * | 2013-11-14 | 2014-02-19 | 中国科学院深圳先进技术研究院 | 300MHz-3GHz full-band multichannel simultaneous communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100872028B1 (en) | 2008-12-05 |
| KR20080073804A (en) | 2008-08-12 |
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