KR20050095142A - Controling apparatus of mobile communication terminal having a camera function and system therof - Google Patents

Abstract

The present invention relates to a transmitter for generating a signal for controlling a camera function of a mobile communication terminal equipped with a camera function and a wireless communication device for automatically controlling a camera function by receiving a control signal, wherein a specific area in which photography is restricted. It is possible to automatically stop the camera function of the mobile communication terminal to prevent various infringement such as leakage of important information or privacy invasion by random shooting of the mobile communication terminal equipped with the camera function.

Description

CONTROLING APPARATUS OF MOBILE COMMUNICATION TERMINAL HAVING A CAMERA FUNCTION AND SYSTEM THEROF}

The present invention relates to a transmitter for generating a signal for controlling a camera function of a mobile communication terminal equipped with a camera function and a wireless communication device for automatically controlling a camera function by receiving a control signal, wherein a specific area in which photography is restricted. It is possible to automatically stop the camera function of the mobile communication terminal to prevent various infringement such as leakage of important information or privacy invasion by random shooting of the mobile communication terminal equipped with the camera function.

As is well known, most of the recently released mobile communication terminals are made smaller and lighter in size, and the size thereof becomes smaller and smaller.In addition, according to the demands of consumers, MP3 and airborne broadcast receivers are installed in the mobile communication terminals. With the addition of various functions, the mobile communication terminal is being used for various purposes in addition to transmitting and receiving 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 Most new mobile communication terminals are equipped with such a function.

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 the infringement of security information and the leakage of important information by random shooting at various research institutes, exhibition halls or industrial sites, etc. have emerged.

In addition, in order to compensate for these problems, recently, various types of seals in the form of stickers are used to cover the camera lens when entering and exiting a specific area requiring security, or a lot of backlash is caused by blocking the camera phone. In the design and production phase of the phone, various security measures are provided by the government and mobile communication terminal manufacturers, such as legislation that generates a voice signal of more than a certain db during operation of the camera or generates light so that others can recognize the shooting operation of the camera. In order to solve the above problems caused by the camera shooting of the mobile communication terminal in a specific area to the extent that it does not deteriorate the competitiveness of the mobile communication terminal, there is no standardized publication or commercialization.

 SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and its object is to automatically stop the camera function of the mobile communication terminal in a specific area, so that arbitrary shooting of the mobile communication terminal equipped with the camera function is possible. It is to provide a control device of a mobile communication terminal equipped with a camera function to prevent various security accidents such as privacy invasion or leakage of important information.

The control device and system of a mobile communication terminal equipped with a camera function according to the present invention for achieving the above object, CDMA or TDMA, GSM frequency band which is a communication frequency of the mobile communication terminal in a specific area requiring security In addition, a transmitting device for continuously transmitting control signals is provided, while a mobile communication terminal transmits a control signal receiving unit and a control signal receiving unit for receiving control signals from the CDMA, TDMA, and GSM transmitters. After the analysis, a program (PROGRAM) for automatically stopping the camera function of the mobile communication terminal is featured. In addition, the radio wave generator is a cell broadcast (CELL BRODCAST: a system designed to deliver data simultaneously to a plurality of users in a specific area area) to the program embedded in the mobile communication terminal all It downloads to the mobile communication terminal, and has the feature of canceling the download by identifying it through the UP-LINK for the mobile communication terminal with the same program installed.

In order to help the understanding of the present invention, a brief description will be given below with reference to the CDMA technical standard.

In a code division multiple access mobile communication system, i.e., a CDMA wireless communication system such as a cellular system, a personal communication system, and an IMT-2000 system, a pilot channel is provided in an uplink CDMA link (from a base station to a mobile station). It is a subchannel. This pilot channel is used by a base station (often called a cell site) to help the mobile station achieve initial synchronization with the base station and to provide time, frequency and phase tracking information of the signal transmitted from the cell site. However, in order for a mobile station to use a pilot channel for synchronization or the like, it must first receive a pilot channel. The mobile station attempts to receive the pilot channel each time the power is turned on and whenever the tracking for the pilot channel fails. All cell sites in a CDMA system have a PN binary code sequence known by all mobile stations so that the base stations can be easily distinguished from each other by the mobile station, and each base station has the same pilot channel binary code sequence with a different timing offset. Using the same pseudo-random number (PN) binary code sequence for the pilot channel.

The reception of the pilot channel is performed inside the mobile station by a circuit, usually called a searcher inside the CDMA modem circuit. The process of receiving a pilot channel involves first converting an incoming signal into its digital representation, and then using a series of initial guesses (hypotheses) to the received signal and the pilot channel PN sequence for accurate timing of the pilot channel PN sequence. Comparing the generated signals for each other. When the estimation of the timing of the pilot channel PN sequence generated in this way matches the timing of the pilot channel PN sequence, a cumulative value having a large value is generated by comparing the generated PN sequence with the pilot channel PN sequence.

Thus, if a cumulative value exceeding a certain threshold is generated by comparison between the received signal and the generated PN sequence, the hypothesis about the timing of the pilot channel PN sequence is considered tentatively valid and stored for later evaluation.

After the mobile station is synchronized with the base station, if the mobile station is out of the communication area of the current base station, the base station sends a list of other base stations that can assume access control. After synchronizing with the base station, the searcher circuit enters a search mode to search for PN sequences from other base stations. If the searcher circuit finds a PN sequence signal of sufficient strength, it stores the PN timing offset of the signal received from the base station so that the signal strength of the current base station drops and the signal strength of one or more other base stations begins to increase significantly. The mobile station then starts calling the handoff procedure.

The CDMA standard briefly mentioned above is also adopted in IMT-2000, a next generation mobile communication system. Therefore, there is an urgent need to develop a mobile communication terminal control signal transmission apparatus and a wireless communication apparatus that can be most suitably applied to the CDMA scheme.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention. Like parts are designated by like reference numerals throughout the specification.

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 mobile terminal control apparatus and system equipped with a camera function according to the present invention, Figure 2 is a block diagram showing a CDMA transmission apparatus according to an embodiment of the present invention; 3 is a flowchart illustrating a process of generating and transmitting a specific channel signal using the transmitter of FIG. 2;

4 is a block diagram illustrating a CDMA mobile communication terminal according to an embodiment of the present invention. FIG. 5 is a flowchart illustrating a process in which a mobile communication terminal receiving a specific channel signal of FIG. 4 automatically controls a camera function. to be.

First, as shown in FIG. 1, the mobile communication terminal control apparatus equipped with the camera function according to the present invention is installed in a specific area where photography is prohibited to continuously transmit a control signal of a mobile communication frequency band (CDMA / TDMA / GSM, etc.). Built in the transmitter 100 and the mobile communication terminal 200 to receive a control signal from the transmitter 100 from the RF transmitter / receiver 201 to analyze the information of the control signal to control the camera function Control signal analysis and camera function control program 202.

       A. Transmitter

Here, the transmitter 100 includes: receiving means for receiving CDMA, TDMA, and GSM forward channel signals from a plurality of adjacent base stations to achieve the above object; Means for obtaining a system time for synchronizing between systems from said forward channel signal; Means for generating a non-overlapping channel signal from a neighboring base station in accordance with the system time; Control signal generation means for controlling a camera function in accordance with the channel signal; Means for receiving and analyzing the control signal and transmitting a program for controlling a camera function according to the generated channel signal; Means for transmitting the control signal over the entire mobile communication frequency band so that all mobile communication terminals present in the particular area can receive it. As shown in FIG. 2, the transmitting apparatus 200 of the CDA embodiment includes one or more antennas 110a and 110b, an RF transmitting / receiving unit 120, and an RF / IF receiving block 130. ), RF / IF transmission block 170, demodulator 140, control unit 150, control channel generator 180, control signal generator 160, memory 165, output power setting unit 191 , The LCD 192 and the power supply 193.

The antennas 110a and 110b receive a CDMA forward channel signal, in particular a pilot channel, a synchronization channel, and a paging channel signal from a base station of a sector or a cell in which the transmitter 200 is located.

Accordingly, the antennas 210a and 210b are frequency band signals allocated to all mobile communication service providers as well as frequency band signals of all mobile communication systems (i.e., cellular systems, PCS systems, and IMT-2000 systems) transmitted from the base station. Must be able to receive.

The transmitter of FIG. 2 includes antennas 210a and 210b capable of receiving a forward signal of a 800 MHz band cellular system and a forward signal of a 1.8 GHz band PCS system, respectively. However, the transmitting apparatus of the present invention is not necessarily limited thereto, and it is possible to receive all the signals of the above-described frequency bands with only one antenna.

The RF transmitter / receiver 120 is configured to alternately set a reception mode and a transmission mode according to the signal of the controller 150. Here, the reception mode means a state of transmitting a forward channel signal from the base station received through the antennas 110a and 110b to the RF / IF reception block 130, and the transmission mode is the RF / IF transmission. The control signal transmitted from the block 170 or the channel signal of the control program 202 is radiated through the antennas 210a and 210b. The RF transmitter / receiver 120 must exist separately for each mobile communication system (cellular, PCS, IMT-2000).

The RF / IF receiving block 130 converts a forward channel signal received through the antennas 110a and 110b into a baseband signal while the RF transmitter / receiver 120 is set to a reception mode. will be.

The RF / IF transmission block 170 communicates a baseband channel signal transmitted from the frequency channel generator 180 while the RF transmitter / receiver 120 is set to a transmission mode through an antenna. It is for converting into a signal of a band.

The controller 150 controls the frequency synthesizer (not shown) in the RF / IF receiving block 130 to convert the frequency band signals of the cellular system, the PCS system, and the IMT-2000 system into baseband signals, respectively. do.

The demodulator 140 converts the baseband signal transmitted from the RF / IF receiving block 130 into digital data and transmits the digital signal to the controller 250 to obtain a system time from the baseband signal. To the frequency channel generator 180. Here, 'system time' means synchronization time information necessary for synchronization between the base station and the base station or the base station and the mobile station.

The memory 160 stores a CDMA protocol and a control program 300 defined in IS-95 / IS-95A / B / C. Accordingly, the controller 150 controls the RF transmitter / receiver 120, the RF / IF receiver block 130, and the demodulator 140 according to the CDMA protocol stored in the memory 165 to establish a pilot channel. Through synchronization acquisition, the system acquires configuration and time information through the sync channel, and processes paging channel messages through the paging channel. As described above, the channel information is obtained from the pilot channel signal, the sync channel signal, and the paging channel signal transmitted from the base station of the sector or cell in which the current transmission apparatus is located and stored in the memory 165.

In addition, the control program generator stored in the memory 165 of the controller 150 controls the RF transmitter / receiver 120, the RF / IF receiver block 130, and the demodulator 140. It transmits to all mobile communication terminals within a specific range through the channel signal allocated at 180. A method of transmitting and storing the control program 300 to all mobile communication terminals existing within a specific range for camera function control will be described. First, by applying CELL BRODCAST function according to CDMA protocol, all mobile communication terminals existing in a certain range are sent to SMS or MMS and sent automatically and installed after received by mobile communication terminal or when user presses the key of mobile communication terminal. Set it up. Another method is that the transmitting apparatus 100 detects the ID value of a new mobile communication terminal that comes within a specific range for controlling camera functions, sends it to a wireless Internet, SMS, or MMS from a specific server, and automatically receives after receiving it at the mobile communication terminal. Set to be installed or to be installed when the user presses a key on the mobile communication terminal. Another method is to load the control program 300 to the channel signal transmitted from the transmitting device 100 and send it out along with the control signal and automatically installed after the reception received by the mobile communication terminal or to be installed when the user presses a key of the mobile communication terminal. Set it.

It is preferable to use the channel signal which is not specifically used by the neighboring base station and is specifically assigned only for camera function control switching.

In addition, the control unit 150 generates a separate signal for controlling the camera function in addition to the control program 202 in the control signal generation unit 160 according to the CDMA protocol stored in the memory 165. The receiver 120, the RF / IF reception block 130, and the demodulator 140 are controlled to be transmitted to all the mobile communication terminals in a specific area through the channel signal allocated by the control channel generator 180.

The output power setting unit 191 is to manually adjust the power strength of the channel signal transmitted through the antenna (110a, 110b) from the outside. Therefore, the user can easily adjust the radiation range of the channel signal.

In addition, the LCD 292 is for displaying the malfunction of the transmitter to the outside.

A process of transmitting a control signal of a mobile communication terminal equipped with a camera function through a specific channel signal using the transmitter 100 having the above-described configuration will be described in detail with reference to FIG. 3. 3A and 3B are flow charts connected to each other, and step S303 of FIG. 3B is followed by step S302 of FIG. 3A.

First, when power is applied to the transmission apparatus of the present embodiment (S300), the controller 150 disables the driving of the output amplifier in the RF / IF transmission block 170 (S301).

In addition, the controller 150 blocks the SYNC80M which is an inter-base station synchronization signal (that is, system time) transmitted from the demodulator 140 to the control channel generator 180 (S302).

When the output amplifier and the synchronization signal are completely blocked, the RF transmitter / receiver 120 is set to a reception mode so as to receive a forward channel signal transmitted from the base station.

In the state in which the reception mode is set, the controller 150 controls the RF / IF reception block 130 and the demodulator 140 according to the CDMA protocol specified in IS-95 / IS-95A / B / C. The pilot channel synchronization is obtained from a primary channel operated by a specific mobile communication service provider (S304). In addition, the controller 150 acquires system configuration and time information in a subsequent sink channel (S305), and paging. Acquire a paging channel message through the channel (S306).

From the neighbor list message and the CDMA channel list message in the paging channel message, the frequency band used in the current base station and the neighboring base station, and the PN offset value of the pilot channel in use in the corresponding frequency band. And the received signal level is extracted and stored in the memory 165 (S307).

In addition, the controller 150 calculates a specific PN offset for the camera function control signal that is different from the PN sequence offset value transmitted from the outside, and stores it in the memory 165 together with the frequency band information. (Or only one of the 512 PN sequence offsets specifically allocated for the camera function control signal may already be stored in the memory 165).

The controller 150 checks whether the above-described routine is performed on the primary channel or the secondary channel of all mobile communication service providers (S308). If the execution of the routines S304 to S307 is not completed, the process returns to the step S304 and the above-described process is repeated.

On the other hand, if the execution of the routines S304 to S307 described above is completed for all mobile communication service providers, the pilot, sink, and paging channel for the first frequency band being used by a particular operator of the sector or cell in which the transmitter is located is used. Obtain the (S310).

After acquiring the pilot channel, information previously stored, that is, the number of frequency bands used by the current base station and the neighboring base station, the PN offset value of the pilot channel in use in the corresponding frequency band, and the information about the received signal level It checks whether it has been updated and stores the updated information (S311).

If the CDMA channel number or the specific PN offset value is changed or a new frequency band is added, the previously stored CDMA channel number and the specific PN offset value are updated and automatically corrected.

The controller 150 instructs the demodulator 140 to transmit the system time SYNC80M, which is a synchronization signal between base stations, to the control channel generator 180 (S312). Means a synchronization signal between base stations necessary to perform the off.

This synchronization signal (ie, system time) is used as a reference time of the channel signal for controlling camera functions emitted from the control channel generator 180.

In addition, the controller 150 receives the control program 202 and the control signal generator 160 stored in the memory 165 and transmits the same to the control channel generator 180 (S313 and S314).

The controller 150 switches the reception mode of the RF transmitter / receiver 120 to a transmission mode in a state in which a synchronization criterion for the camera function control signal is established. (S315) After switching to the transmission mode, the control channel The generation unit 180 generates a channel signal having a specific PN offset value for the camera function control signal, and transfers the signal to the RF / IF transmission block 170. The RF / IF transmission block 170 transmits this channel signal to the antenna to allow air emission. (S316) At this time, the RF / IF transmission block 170 is present for each system so as to exist for each operator of each system. The channel signal may be radiated sequentially in a frequency band.

In addition, the RF / IF transmitting block 170 may be configured in a single manner, and the RF transmitting / receiving unit 120 may be configured for each system to sequentially radiate the channel signal periodically for a frequency band of each operator of each system. .

When the emission of the channel signals for all frequency bands of the mobile communication service provider is completed, the process returns to S310 to repeat update of the second mobile communication service provider and repeats the same routine as described above (S316).

         B. Wireless Communication Equipment

Hereinafter, a configuration of a wireless communication device according to the present invention for automatically stopping a camera function by receiving a channel signal for controlling a camera function from a transmitter of the present embodiment will be described in detail with reference to FIGS. 4 and 5.

Among the wireless communication devices of the present invention, a code division multiple access mobile communication system (cellular phone, PCS phone, IMT-2000 phone, etc.) will be described as an embodiment.

4 is a block diagram illustrating a mobile communication terminal of a code division multiple access method according to an embodiment of the present invention. This figure further applies to various mobile communication terminals of another embodiment of the present invention, including PCS phones and IMT-2000 phones.

According to the wireless communication device of the present embodiment, the channel signal for controlling the camera function from the transmitting device 100 of the present invention is received through the antenna 210, and then filtered by the RF / IF transceiver 220 and the modulator 230. ) Is converted from analog to digital and given to a control unit (MSM: Mobile Station Modem) 240.

Here, although the control signal and the control program 300 are included in the channel signal for controlling camera functions, in some cases, only one control signal and the control program 300 may be sent independently, and the control signal and the control program ( When 300 is present in the channel signal together, the control program 300 is separated first and then the control signal is separated.

The camera control channel signal transmitted to the controller 240 confirms the presence / absence of the internal control program 300 in the memory 250 and stores the control program when the control program 300 does not exist.

After the control program 300 is stored, the signal processor 310 of the control program 300 searches for a control signal from the channel signal for controlling the camera transmitted to the control unit 240, and if it is determined that the search result is a control signal, the command unit 320. ) Requests the control unit 240 to turn off the camera function, and the control unit 240 instructs the camera unit 260 to stop the camera function. That is, when the camera function control signal is found, the controller 240 reads the current camera function state control value from the command unit 320 stored in the internal memory.

In some cases, the control of the camera function may be implemented in various ways, and the partial stop of the camera function or the camera input key may be controlled by the key input unit 270.

In the case of stopping the camera function according to the present invention, a guide message for stopping the camera function may be output to the liquid crystal display 280 through the command unit 320 as necessary.

Hereinafter, a process of automatically controlling the camera function of the mobile communication terminal 200 equipped with the camera function of the present embodiment and a process of restoring the original camera function will be described in detail with reference to FIG. 5.

The channel signal for controlling camera functions is searched from the received signal of the mobile communication terminal (S401).

In this case, when the found signal energy value is larger than the threshold energy value, the controller 240 analyzes the channel signal. It is determined whether the control program is installed in the mobile communication terminal through the presence / non-existence determination code of the in-memory control program 300 among the channel signals. (S403) If the control program 300 does not exist in the memory, the control is performed. The program 300 is received / installed. (S404) On the other hand, when the control program 300 is installed, the signal processing unit 310 receives a channel signal for controlling camera functions to determine whether there is a control signal and whether the camera function is controlled. (S405).

When the camera function control state of the signal processor 310 is set to OFF, a new channel signal is searched for. On the other hand, when the camera function control state is ON, the control signal is searched to switch the camera function control state to OFF and send the camera ON ?? OFF switch value to the command unit 320 (S406).

The command unit 320 receives the switching message from the signal processing unit 310 and requests the control unit 240 to stop the camera function, and the control unit 240 instructs the camera unit 260 to stop the camera function. If necessary at the time when the camera function is stopped, the control unit 240 may display a stop guide message of the current camera function through the liquid crystal display unit 280 according to a request of the command unit 320 (S408). The guide message may be omitted.

Here, the presence of the control signal and the storage of the camera function control state will be described in more detail.

The presence of the control signal and the method of storing the camera function control state may be largely two methods. In the first method, when the control signal is received, the control state setting value of the signal processor 310 is checked and the setting value is OFF when it is ON (for example, '1' is stored in a variable, and the initial setting value is '0'). Camera function ON) and sends the camera ON ?? OFF switch value to the command unit 320. If the detected signal energy value is greater than the threshold energy value (S402) because the mobile communication terminal exists within a specific range for controlling the camera function (S402), the signal processor turns the signal energy value ON (for example, stores the variable value as '1'). Signal control value 310 is set to OFF, and the signal energy value 310 turns off the signal energy value when the signal energy value found out of a specific range for controlling the camera function becomes smaller than the threshold energy value. Save the parameter value as '0') to start the command to cancel the camera function stop. Accordingly, the signal processor 310 checks the control state set value (S409) and turns the set value ON (save '0' in the variable) when the control state set value is set to OFF (variable is set to '1'). In order to switch and release the camera function, the camera unit transmits a camera OFF ?? ON switch value to the command unit 320. (S410) The command unit 320 requests the controller 240 to activate the camera function according to the switch value. 240 instructs the camera unit 260 to cancel the camera function stop (S411).

In another method, when the control signal is received, the control state setting value of the signal processing unit 310 is checked, and when it is ON, the setting value is turned OFF and the camera ON ?? OFF switching value is sent to the command unit 320. The signal processor 310 periodically receives a control signal at a predetermined time and repeatedly updates and maintains the control state setting value as OFF. In other words, when a control signal exists every predetermined time, the control state set value is maintained OFF. When the signal energy value detected by the mobile communication terminal is out of the specific range for controlling the camera function becomes smaller than the threshold energy value, the signal processor 310 receives a new control signal even after a predetermined time elapses. Since it is unable to do so, it starts the step of releasing the camera function stop command. Accordingly, the signal processor 310 checks the control state set value (S409) and turns the set value ON (save '0' in the variable) when the control state set value is set to OFF (variable is set to '1'). In order to switch and release the camera function, the camera unit transmits a camera OFF ?? ON switch value to the command unit 320. (S410) The command unit 320 requests the controller 240 to activate the camera function according to the switch value. 240 instructs the camera unit 260 to cancel the camera function stop (S411).

In principle, the control signal is sent by the transmitting apparatus 100 according to the present invention. In addition to the above method, the control signal may be transmitted to a mobile communication terminal by a specific server or a CDMA MODEM using wireless Internet, SMS, or MMS. . That is, when the mobile communication terminal enters a specific range for controlling the camera function, the transmitter 100 recognizes the ID value of the newly entered mobile communication terminal and transmits the ID value to a specific server or CDMA MODEM. The control signal is transmitted to the mobile communication terminal corresponding to the value using the wireless Internet, SMS, or MMS. In the same principle, when the mobile communication terminal is out of a specific range, the transmitter 100 determines the ID value of the mobile communication terminal to be released and transmits the ID value to a specific server or CDMA MODEM to control the corresponding mobile communication terminal. It is possible to replace the control signal transmission function of the present invention by stopping signal transmission or by transmitting a camera function restoration control signal.

In the process of restoring the camera function, if necessary, a guide message for notifying the release of the camera function may be displayed on the liquid crystal display 280 of the mobile communication terminal. (S412) In addition, the mobile communication terminal of the present embodiment saves battery power consumption. It is desirable to operate the sleep mode for this purpose.

The embodiment of the present invention can be applied to all mobile communication technologies including other mobile communication technologies such as TDMA or GSM.

As described above, the present invention is not limited to the above-described embodiments, and various changes within the equivalent scope of the technical concept of the present invention and the claims to be described below by those skilled in the art to which the present invention pertains. Of course, modifications and variations are possible.

For example, in the present invention, the control device for the camera function in a specific area has been described as being limited to a mobile communication terminal equipped with a camera function, a so-called camera phone, but the same applies to other camcorder phones or digital cameras. According to the present invention, in addition to the camera function of the mobile communication terminal, the individual control functions of the mobile communication terminal, such as automatic vibration mode switching, can be selectively controlled by changing the control program 202 as necessary. For this purpose, a program may be downloaded to all mobile communication terminals existing within a specific range or may be used as a means of delivering a message (SMS, MMS, etc.).

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

As described above, according to the present invention, since the shooting function of the mobile communication terminal equipped with the camera function can be automatically stopped in a specific area where camera shooting is prohibited, a security accident caused by invasion of privacy or leakage of various important information. Will be effective to prevent.

In addition, it is economical as it can be controlled without installing new hardware in the function of the existing mobile communication terminal, and it is possible to develop various mobile communication without worrying about various side effects on the camera shooting in the design and development stage of the mobile communication terminal. It can help to develop the terminal.

Accordingly, there is an effect that can effectively solve various social problems caused by misuse of the mobile communication terminal equipped with a camera function.

Furthermore, in the present invention, not only the camera function is stopped in a specific region but also the control program stored in the mobile communication terminal enables control of each function of the mobile communication terminal, and further provides various additional services such as providing specific information in a specific region. It is possible to provide to the user of the mobile communication terminal, there is an effect that can greatly contribute to the development of the multimedia mobile communication terminal in the future.

On the other hand, the mobile communication terminal control signal transmission device 100 equipped with a camera function according to the present invention, when using the technology of the present invention to transmit a program, the general mobile communication terminal as needed in a specific area in addition to the control program 202 It also enables the delivery of licensed programs, creating new markets for regionally based telecommunication systems and services.

1 is a block diagram showing a schematic configuration of a mobile terminal control apparatus and system equipped with a camera function according to the present invention;

2 is a block diagram of a CDMA transmission apparatus according to an embodiment of the present invention;

3 is a flowchart illustrating a process of generating and transmitting a specific channel signal using the transmitter of FIG. 2;

4 is a block diagram illustrating a CDMA mobile communication terminal according to an embodiment of the present invention;

5 is a flowchart illustrating a process of automatically controlling a camera function by a mobile communication terminal receiving the specific channel signal of FIG. 4.

       Explanation of symbols on main parts of drawing

100: transmitter 101: AC / DC converter

102: DC BATTERY 103: main components of the transmitter

200: mobile communication terminal 201: RF transceiver

202: control program 110a, 110b: antenna

120: RF transmitter / receiver 130: RF / IF receiver block

140: demodulation unit 150: control unit

160: control signal generator 165: memory

170: RF / IF transmission block 180: control channel generator

240: (mobile communication terminal) control unit 250: memory

260: camera unit 300: control program

310: signal processing unit 320: command unit

Claims (4)

Means for receiving CDMA forward channel signals from a plurality of adjacent base stations; Means for ensuring a particular channel that can never be received from a plurality of adjacent base stations; Means for generating a reserved specific channel; Means for generating a control signal for controlling a camera function of a mobile communication terminal equipped with a camera function; Means for including a control signal for controlling a camera function of a mobile communication terminal equipped with a camera function in the generated channel; Means for including a control program for controlling a camera function of a mobile communication terminal equipped with a camera function in the generated channel; Means for transmitting a channel signal in a CDMA frequency band so that all mobile communication terminals existing within a specific range can receive; Thus, a transmitter for generating and transmitting a camera signal for controlling a camera function, characterized in that the camera function of the mobile communication terminal equipped with all camera functions existing in the reception region of the channel signal is automatically controlled and stopped. Transmission device for transmitting camera function control program to all mobile communication terminals existing within a specific range. Means for receiving all channel signals for camera function control by all mobile communication terminals existing within a specific range; Means for separating the control program and the control signal from the received channel signal; Means for operating a separate control program; A control program that receives a control signal and automatically stops the camera function of a mobile communication terminal equipped with a camera function. The method of claim 2, System that grasps ID values of all mobile communication terminals existing in a specific range in connection with a specific server or CDMA MODEM and downloads a camera function control program to the corresponding mobile communication terminal.