KR200332363Y1 - The security equipment of cellular phone with camera function - Google Patents

Abstract

The present invention relates to a security device of a camera phone, which can automatically stop the camera function of the camera phone in a specific area, thus preventing various security accidents such as invasion of privacy or leakage of important information by random shooting of the camera phone. In order to provide a security device of the camera phone to prevent the, the security device of the camera phone according to the present invention, a small output radio wave generator for continuously transmitting a signal of a certain frequency band is installed in a specific area requiring security On the other hand, the camera phone has a built-in software for stopping the camera function of the camera phone after analyzing the signal according to the signal received from the stop command receiver for receiving the transmission signal from the low-power wave generator; It is characterized by.

Description

Camera phone security device {THE SECURITY EQUIPMENT OF CELLULAR PHONE WITH CAMERA FUNCTION}

The present invention relates to a security device of a camera phone, and more specifically, to install a security device in the camera phone and a specific area, respectively, so that the camera function of the camera phone is automatically blocked in a specific area, invasion of privacy by random shooting The present invention relates to a security device for a camera phone, which can prevent various security accidents in advance.

As is well known, recent mobile communication terminals have been miniaturized and lightened in size, and the size thereof is becoming smaller. Further, various functions are added to the mobile communication terminals according to the demands of consumers. Terminals are used for a variety of purposes other than the transmission and reception of voice signals.

In particular, in recent years, the use of a camera phone that is configured to integrate the camera device in the mobile communication terminal to shoot a person or object with a camera through the mobile communication terminal to store the inside of the terminal or to transmit to other people is greatly increased There is a situation.

However, as described above, in a camera phone in which a camera is integrated inside a mobile communication terminal, various misuses occur due to its simplicity of use, and in particular, privacy by unauthorized photographing in a bath, a dressing room, a swimming pool, and a subway. Serious problems in security, such as infringement of security information and the leakage of important information by random shooting at various exhibition halls or industrial sites, etc. have emerged.

In addition, in order to compensate for these problems, a method of covering a camera lens when entering and exiting a specific area requiring security, and generating a certain voice signal or light when the camera operates, recognizes the shooting operation of the camera by others. The government and mobile communication device manufacturers are taking various security measures, such as legislating the law, but until now, the method of automatically disabling the camera function in a specific area has not been announced as standardized or commercialized.

Therefore, the present invention has been devised to improve the conventional problems as described above, the purpose is to automatically stop the camera function of the camera phone in a certain area to invade the privacy by random shooting of the camera phone or It is to provide a security device of the camera phone to prevent various security accidents such as leakage of important information.

Security device for a camera phone according to the present invention for achieving the above object, while a small output radio wave generator for continuously transmitting a signal of a certain frequency band is installed in a specific area requiring security, the camera phone is a small output A stop command receiver for receiving a signal from the wave generator and software for analyzing the signal according to the signal received by the stop command receiver and automatically stopping the camera function of the camera phone are built in.

Preferably, the small output radio wave generator is a power generator for supplying a predetermined power from the outside, a code generator for generating a stop command code that can be received from the camera phone according to the setting of the administrator, and in the code generator And a modulator for modulating the generated code by a frequency shift keying (FSK) method according to a signal from the local oscillator, and a power amplifier for adjusting the modulated signal to be radiated through the antenna unit.

The stop command receiver may further include a signal separator for separating a signal received through the antenna into a mobile phone frequency region and a stop command code frequency region, and a low noise amplifier for amplifying a fine effective signal while minimizing noise interference. And an IF unit comprising a mixer for mixing the signal supplied from the primary oscillator and the input signal from the LNA, a filter and an amplifier for filtering the intermediate frequency, and an input signal from the IF unit being supplied from the secondary oscillator. Mix and filter with the signal, convert it into a basic signal capable of FSK demodulation, demodulate it, and transmit the analysis software and camera function control software that analyzes the signal to the built-in MPU so that the camera function of the camera phone can be controlled. Characterized in that the FSK demodulator.

According to the present invention configured as described above, as an arbitrary camera phone having a stop command receiver and control software enters a specific area in which a small output radio wave generator for generating a stop command code for stopping the camera function of the camera phone is entered. The camera phone is automatically controlled to immediately stop the camera function upon receiving the stop command code from the low power radio wave generator.

1 is a block diagram showing a schematic configuration of a security device of a camera phone according to the present invention,

Figure 2 is a block diagram showing the configuration of a small output wave generator provided in the security device of the camera phone according to the present invention,

3 is a view showing the circuit configuration of a small power wave generator provided in the security device of the camera phone according to the present invention,

Figure 4 is a block diagram showing the configuration of the stop command receiver provided in the security device of the camera phone according to the present invention,

5 is a view showing the configuration of the stop command code applied to the security device of the camera phone according to the present invention,

6 is an overall flowchart showing a security process of the camera phone through the security device of the camera phone according to the present invention,

7 is a flowchart illustrating a process of controlling the camera function of the camera phone by the security device of the camera phone according to the present invention.

Explanation of symbols on the main parts of the drawings

10: small power wave generator, 12: power supply,

14: AC / DC converter, 20: code generator,

22: switch box, 24: MPU or Shift Register

30: modulator, 32: local oscillator,

40: power amplifier, 42: matching circuit,

44,62: antenna portion, 50: camera phone,

60: stop command receiver, 64: signal separator,

66: LNA, 70: IF part,

72: primary oscillator, 74: FSK demodulator,

76: secondary oscillator, 80: analysis software,

90: Camera function control software.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a schematic configuration of a security device of the camera phone according to the present invention, Figure 2 is a block diagram showing the configuration of a small power wave generator provided in the security device of the camera phone according to the present invention, Figure 3 4 is a block diagram illustrating a circuit configuration of a small output radio wave generator provided in a security device of a camera phone according to the present invention, and FIG. 4 is a block diagram illustrating a configuration of a stop command receiver provided in the security device of a camera phone according to the present invention.

First, the security device of the camera phone according to the present invention, is installed in a specific area for security, a small output wave generator 10 for continuously transmitting a signal of a predetermined frequency band, and the camera phone 50 is integrally built in the small output In the analysis software 80 and the analysis software 80 analyzing the information according to the signal received by the stop command receiver 60 and the stop command receiver 60 receiving the signal from the wave generator 10 and analyzed. Camera function control software 90 which performs control to stop the camera function based on the information.

Here, the small power wave generator 10 includes a power supply unit 12, a code generator 20, a modulator 30, a power amplifier 40, and the like, and the power supply unit 12 includes an AC power source ( 220V / 60Hz) is input to the DC power supply to convert the DC power supply from the outside through the AC / DC converter 14 is supplied to the appropriate voltage for the operation of the small-output wave generator 10 is supplied. The battery unit 12 includes a battery back-up circuit configured to operate the small output wave generator 10 through the voltage of the battery when the AC power is not supplied from the outside.

Then, the code generator 20 is a switch box 22 for inputting a stop command code or a delivery period by the manufacturer, maintenance personnel, installer, etc., and the stop command according to the conditions entered through the switch box 22 It is composed of an MPU or a shift register (24) for generating a control code for controlling the sending period of the stop command code, and can be received by the camera phone 50 according to the setting of the administrator. It is configured to generate a stop command code.

At this time, the configuration of the stop command code generated by the code generator 20, as shown in Figure 5, consisting of three pieces of information of the synchronization signal, the stop command code and the end of command (EOC) in one frame and transmitted Each signal constituting the frame is composed of 8 bits and is as follows.

-Sync 1; 01111110 (7Eh)

-Sync 2; 01111110 (7Eh)

-Stop command code; 11001100 (CCh)

End of Command (EOC); 00110011 (33h)

Here, the stop command code can be set externally, and the EOC is always configured to have a 1's Complementary value of the stop command code, and the value of the EOC is also changed according to the change of the stop command code. Configured to change together.

Accordingly, the receiving side of the stop command code can confirm the validity of the received stop command code through the information of the end of command (EOC).

On the other hand, the rate of the transmitted data is configured not to exceed 20 [KHz] to reduce the burden on the hardware according to the high-speed transmission, when the data rate is 20 [KHz] is sent per frame of the stop command code The time is 32 bits × 0.025 mSec / bit = 0.8 mSec.

When sending the stop command, the frame is repeatedly transmitted several times, and the sending time is set to 1.28 seconds, 2.56 seconds, 5.12 seconds, etc., which is a multiple of the basic slot cycle time of the CDMA, but does not exceed 40 seconds. In addition, the basic slot cycle time is a multiple unit. This is to reduce the power consumption at the receiving side and to efficiently receive the stop command code.

The transmission period of the stop command code configured to be adjusted externally through the switch box 22 is such that the minimum period is 2.56 seconds, so that at least one second, which is a technical requirement of a wireless device for a specific small power wireless station, in Korea. Make it satisfying.

In addition, the modulator 30 is integrated such as 'TDA5100' to modulate the stop command code generated from the code generator 20 in a frequency shift keying (FSK) scheme according to a signal from the local frequency generator 32. In this case, the frequency of the local frequency generator 32 that generates a signal of the frequency required for modulation is a specific low power radio for safety system among 'frequency for radio stations without permission or notification' according to the domestic frequency allocation standard. The frequency of 447.2625 [MHz] to 447.5625 [MHz], which is a frequency corresponding to the 'safety system' of the device, is selected and determined.In this case, the occupied frequency bandwidth of the modulated signal is set to 8.5 [KHz] or less. Must satisfy

In addition, the power amplifier 40 is configured to amplify with a suitable power so that the signal modulated from the modulator 30 can be radiated to the air through the antenna unit 44, wherein the power amplifier 40 The external control terminal has a structure capable of adjusting the amplification degree, but is configured to amplify the power within a range where the aerial power is 10 [mW] or less.

On the other hand, the stop command receiver 60 integrally embedded in the camera phone 50 to receive and process the signal from the small output wave generator 10 is roughly a signal separator 64, LNA 66, IF unit ( 70), FSK demodulator 74, and the like.

Here, the signal separator 64 separates a signal received through the antenna unit 62 into a cell phone frequency domain and a stop command code frequency domain, and outputs the signal to the LNA 66 side. Reference numeral 66 amplifies the fine effective signal input from the signal separator 64 while minimizing interference of noise.

In addition, the IF unit 70 includes a mixer for mixing a signal supplied from the primary oscillator 72 and a signal input from the LNA 66, a filter and an amplifier for filtering out an intermediate frequency. Meanwhile, the FSK demodulator 74 mixes and filters an intermediate frequency input from the IF unit 70 with a signal of the secondary oscillator 76 to convert the demodulated signal into a basic signal capable of FSK demodulation. After performing the analysis, the signal is classified into an RSSI for detecting the strength of the received signal, a demodulated code (data), and a status signal for transmitting the operation state of the demodulator, and the analysis software 80 and the camera function control software 90 are configured. It is configured to transmit to the MPU side of the camera phone 50.

At this time, the stop command receiving unit 60 may be configured in various modifications, such as the IF unit 70 and the FSK demodulator 74 may be integrally configured according to the IC integration capability.

Next, the operation of the present invention made as described above will be described in detail with reference to FIGS. 1 to 9.

First, in order to automatically stop the camera function of the camera phone in a specific area by using the camera phone security device according to the present invention, the small power wave generator 10 is installed in a specific area requiring security.

In this case, since the power output of the small power wave generator 10 is limited to a specific level, the user who wants security can design a security zone in detail, and the influence of the neighboring area due to the small power wave generator 10 is also affected. Can be minimized.

In addition, when the range of the specific area requiring security is wide, it is also possible to increase the security area by installing a large number of small output radio wave generator 10, the output level of the small power wave generator 10 violates the radio wave management regulations It is also possible to reduce the number of installation of the low-power wave generator by adjusting high within the range that is not.

On the other hand, in the security method of the camera phone in a specific area using the security device of the camera phone, first, in the stop command code generation step 100, the small output wave generator 10 is the switch box 22 of the code generator 20 Generates a stop command code in the MPU or shift register 24 according to an input condition according to the operation, modulates the generated stop command code into an FSK signal through the modulator 30 and the power amplifier 40 After amplifying the signal, the amplified signal is transmitted through the antenna matching circuit 42 through the antenna unit 44 and radiated to the air.

At this time, in the stop command code receiving and processing step 110, any mobile communication terminal (camera phone 50) in which the stop command receiving unit 60 is integrated therein is provided with the small output wave generator 10. When entering the specific area and receives the transmission signal from the low power wave generator 10 through the antenna unit 62, the signal separator 64 of the stop command receiver 60 through the antenna unit 62 The input signal is divided into a mobile phone frequency domain and a stop command code frequency domain, and the mobile phone frequency domain is transmitted to a transmitting / receiving end of the camera phone 50, and the stop command code frequency domain is a low noise amplifier (LNA) ( 66), the LNA 66 amplifies the received micro valid signal while minimizing interference of noise and transmits the signal to the IF 70 side.

Then, the IF unit 70 mixes the input signal with the signal from the primary oscillator 72 and filters the intermediate frequency and transmits it to the FSK demodulator 74 side, and the signal input to the FSK demodulator 74 side. Is demodulated after being mixed with the signal of the secondary oscillator 76 and filtered to be converted into a basic signal capable of FSK demodulation.

In addition, the signal demodulated by the FSK demodulator 74 is divided into an RSSI for detecting the strength of a received signal, a demodulated code (data), a status signal for transmitting the operation state of the demodulator, and the like, and the MPU of the camera phone 50. As transmitted to the side, in the stop command code analysis step 120, the analysis software 80 embedded in the MPU of the camera phone 50 analyzes the frame structure of the transmitted stop command code and extracts the corresponding information.

In this case, when the analysis software 80 receives the Hexadecimal '7E' twice in a row, the analysis software 80 recognizes that the following 1 [Byte] is a stop command code and receives the received command, and then uses EOC (End OF Command) information. By checking the received code is a correct stop command code.

For example, since the EOC always has the reward value of the stop command code, it is possible to determine whether the command is valid by checking whether the EOC is the complement value of the already received stop command code.

In addition, since the stop command code can be continuously input at a predetermined period set by the small power wave generator 10, it should always be detected and transmitted to the camera function control software 90 side.

On the other hand, as the information of the stop command code analyzed by the analysis software 80 is transmitted to the camera function control software 90 side, in the camera function control step 130, the camera phone 50 based on the analyzed information. Selective control of camera functions.

Here, the process of controlling the camera function of the camera phone 50 in the camera function control step 130 is as shown in FIG.

First, when the stop command code transmitted from the low power wave generator 10 is input to the mobile communication terminal (camera phone 50) in step 200 and the corresponding information is extracted through the analysis software 80, the camera The camera function control software 90 provided in the MPU of the phone 50 performs control to immediately turn off the camera function in step 210, and then the icon according to the off state of the camera function is set to the camera. Control is performed to be displayed via the LCD display of the phone 50 (step 220).

Further, in step 230, the camera function off state of the camera phone 50 is maintained for a predetermined time (about 10 seconds), while in step 240, the off setting time of the camera function elapses. Will be judged.

In this case, when it is determined that the camera function off setting time of the camera phone 50 has not elapsed, the process proceeds to step 242 while maintaining the off state of the camera function. In step 244, it is determined whether or not the stop instruction code is further detected.

In this case, when it is determined in step 244 that the stop command code is not additionally detected, the process returns to step 240 and the camera function is turned off according to whether the off setting time of the camera function has elapsed. Is controlled, and if it is determined in step 244 that the stop command code is additionally detected, the process returns to step 230 to turn off the camera function for a preset off time of the camera function. Controlled to maintain.

On the other hand, if it is determined that the camera function off time of the predetermined camera phone 50 has elapsed as a result of the determination of step 240, the control software 90 proceeds to step 250 and the camera phone 50. Control to immediately turn on the camera function, and immediately deletes the icon corresponding to the off state of the camera function displayed on the LCD display of the camera phone 50 in step 260 and stops the command. As the control is switched to the standby state for detecting the code, a series of processes according to the automatic control of the camera function of the camera phone 50 is terminated.

On the other hand, even if the modified embodiments other than the contents described in the present invention is not to be understood individually from the technical spirit or prospects of the present invention, it goes without saying that belongs to the claims attached to the present invention.

For example, in the present invention, a security device for securing a camera function in a specific area has been described as being limited to a camera phone in which a camera function is added to a mobile communication terminal, but the same applies to other camcorder phones or digital cameras. Of course, it can be carried out by.

According to the present invention made as described above, it is possible to automatically stop the shooting function of the camera phone in a specific area requiring security, it is effective to prevent security accidents due to privacy invasion or leakage of various important information Will be.

In addition, it is possible to effectively solve various social problems caused by misuse of the camera phone, and also to contribute to the development of multimedia portable terminals in the future.

On the other hand, the low-power radio wave generator of the camera phone security device according to the present invention uses a frequency band and transmission power in accordance with the radio wave management regulations required in the country while using the frequency for the radio station that does not require permission or report, and at the same time the existing mobile communication terminal It is designed to minimize the configuration of the hardware by using the RF circuit for the use, it is easy to use and can reduce the cost burden due to the increase in material costs, it is economically very useful effect.

Claims (7)

In a specific area where security is required, a small output wave generator for continuously transmitting a signal of a predetermined frequency band is installed, while a camera phone receives a stop command receiver for receiving a signal from the low power wave generator and a signal for the stop command receiver. Security device for a camera phone, characterized in that the software is built in to automatically stop the camera function of the camera phone after analyzing the signal according to. The method of claim 1, The small power wave generator, A power supply unit for supplying predetermined power from the outside to the apparatus, A code generator for generating a stop command code that can be received from the camera phone according to a setting of the corresponding manager; A modulator for modulating a code generated by the code generator in a frequency shift keying (FSK) scheme according to a signal from a local oscillator, And a power amplifier configured to adjust the signal modulated by the modulator to radiate through the antenna unit. The method of claim 2, The frequency of the local oscillator supplied to the modulator is determined by selecting a frequency in the range of 447.2625 [MHz] to 447.5625 [MHz], while the occupied frequency bandwidth of the modulated FSK signal has a value of 8.5 [KHz] or less. Camera phone security device. The method of claim 2, The transmission cycle of the low power radio wave generator is such that the maximum transmission time is 40 seconds or less and the minimum transmission pause time is 1 second or more, so as to satisfy the 'technical condition of the radio equipment for a specific low power radio station'. Security device of a camera phone, characterized in that configured in multiples of 1.28 seconds cycle time. The method of claim 2, The stop command code signal is a security device of a camera phone, characterized in that for transmitting three pieces of information of the synchronization signal, the stop command code and EOC (End Of Command) in one frame. The method of claim 5, The EOC is configured to have a one's complement value of the stop command code, so that the receiving side of the security device of the camera phone characterized in that the confirmation of the stop command code through the EOC. The method of claim 1, The stop command receiving unit, A signal separator for separating a signal received through the antenna into a mobile phone frequency domain and a stop command code frequency domain; Low Noise Amplifier (LNA) that amplifies fine effective signals while minimizing noise interference, An IF unit comprising a mixer for mixing a signal supplied from a primary oscillator and an input signal from the LNA, a filter and an amplifier for filtering an intermediate frequency, The input signal from the IF unit is mixed with the signal supplied from the secondary oscillator, converted into a basic signal capable of FSK demodulation, demodulated, and analyzed by the analysis software and camera function control software. Security device of a camera phone, characterized in that configured to be transmitted by the FSK demodulator to control the camera function of the camera phone.