JP2005311610A - Telephone set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent erroneous detection of a user himself/herself and enable the user who is at a distant place to guess the situation inside a room to some extent, in a telephone set provided with a security function interlocked with an automatic answering function. <P>SOLUTION: The telephone set is provided with a security unit which is provided with the automatic answering function and detects a trespasser into a room. When the automatic answering function is set, the security unit is set so as to operate interlockingly with the function. The security unit is provided with a human detection sensor for detecting the movement of a human or an article by, for example, an infrared ray. If the human detection sensor responds, the situation around it is photographed with a photographing means and image data are generated. Then, the image data are automatically transmitted to a previously set destination. With this configuration, since the user is notified of occurrence of an abnormality inside the room, while the user can view an image indicating the situation inside the room at that time; the user can know the contents of the abnormality in more detail. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a telephone having an answering machine function.

  In recent years, there has been a tremendous increase in criminal crimes aimed at homes away. However, the security system as a countermeasure is expensive to introduce, and if it is contracted with a security company, the running cost becomes very high, so it is difficult to introduce it into a general household in terms of cost. Even if it is introduced, setting operations and the like are troublesome, and setting may be forgotten.

  From this point of view, Patent Document 1 proposes a system that realizes security using an answering machine. In the system of this document, when a human body sensor is arranged in a room and the human body sensor outputs a signal while the answering machine mode is set, the pager is automatically called.

  However, in the system as described above, the owner of the house cannot be distinguished from an intruder or the like. Even if the presence of an intruder is detected, a remote user can only know that the human body sensor has reacted in the room, and there is an abnormality such as whether there is a real intruder or a malfunction. Can't guess the contents of

JP-A-6-69996

  Examples of the problems to be solved by the present invention include the above. It is an object of the present invention to prevent a user's own false detection in a telephone having a security function linked with an answering machine function, and to allow a remote user to guess a room condition to some extent. To do.

  The invention according to claim 1 is a telephone having an answering machine function, and an answering machine setting means for setting the answering machine function, and a security unit set to be operable when the answering machine function is set The security unit includes a human sensor, and a transmission unit configured to make a call to a preset telephone number when the human sensor reacts for a predetermined time or more. .

  The invention described in claim 2 is a telephone having an answering machine function, and an answering machine setting means for setting the answering machine function, and a security unit which is set to be operable when the answering machine function is set. The security unit includes a human sensor, a photographing device that captures a surrounding image when the human sensor reacts, and a transmission unit that transmits the surrounding image to a preset destination. It is characterized by providing.

  In one preferred embodiment of the present invention, a telephone having an answering machine function includes an answering machine setting means for setting the answering machine function, and a security unit that is set to be operable when the answering machine function is set. The security unit includes a human sensor, and a transmission unit configured to make a call to a preset telephone number when the human sensor reacts for a predetermined time or more.

  The above telephone has an answering machine function and a security unit for detecting an intruder into the room. When the answering machine function is set, the security unit is set to be operable in conjunction with it. The security unit includes a human sensor that detects the movement of a person or an object using, for example, infrared rays. When the human sensor reacts for a predetermined time or longer, a call is automatically made to a preset telephone number, and a voice message or the like is sent. Therefore, when the human sensor detects an abnormality, such as when there is an intruder in the room at home, a message notifying the abnormality is automatically transmitted to a preset mobile phone of the user.

  Automatic transmission to a preset telephone number is performed when the reaction of the human sensor has continued for a predetermined time or more. This predetermined time is preferably set to be approximately equal to the time required from the time when the user comes home and is detected by the human sensor until the answering machine function is canceled. Accordingly, it is possible to prevent a problem that a human sensor detects the time before the user returns home and cancels the answering machine function, and automatic transmission is made to a mobile phone or the like each time.

  In another embodiment of the present invention, a telephone having an answering machine function includes an answering machine setting means for setting the answering machine function, a security unit that is set to be operable when the answering machine function is set, The security unit includes a human sensor, a photographing device that captures a surrounding image when the human sensor reacts, and a transmission unit that transmits the surrounding image to a preset destination. Prepare.

  The above telephone has an answering machine function and a security unit for detecting an intruder into the room. When the answering machine function is set, the security unit is set to be operable in conjunction with it. The security unit includes a human sensor that detects the movement of a person or an object using, for example, infrared rays. When the human sensor reacts, the surrounding situation is photographed by the photographing means, and image data is generated. Then, the image data is automatically transmitted to a preset destination. As a result, the user can not only simply be notified that there was an abnormality in the room, but can also see an image showing the indoor situation at that time, so that he can know or guess more about the contents of the abnormality. can do. Further, depending on the image content, it is possible to determine whether the abnormality is actually caused by an intruder or a malfunction due to some cause. Therefore, it becomes possible to perform a more appropriate response quickly.

  In a preferred embodiment of the telephone set described above, the transmission means transmits an e-mail including the image to a preset e-mail address. As a result, the user can view the e-mail and the image data using a terminal capable of receiving e-mail, such as a mobile phone or a company PC.

  In a preferred embodiment, the photographing device is arranged at a position for photographing within the detection range of the human sensor. As a result, an image of a place where movement or the like is detected by the human sensor can be taken and transmitted. Therefore, it is possible to take an image showing the abnormal situation more accurately, and the situation determination of the user is more accurate.

  In one aspect of the telephone set, the security unit is set to be inoperable when the answering machine function is released. The act of setting an answering machine function when going out and releasing it when returning home is relatively customary, so it is possible to prevent unnecessary dialing and email transmissions from being forgotten to cancel management by the security department after returning home .

  In a preferred embodiment, the telephone is a cordless telephone including a parent device and a child device, and the security unit is provided in at least one of the parent device or the child device. In the case of a cordless telephone, the security management of the present invention can be executed if a security unit is provided in at least one of the parent device or the child device. In addition, if security units, in particular human sensors, are provided in more slave units, it is possible to detect abnormalities in a wider range in the house.

  Preferred embodiments of the present invention will be described below with reference to the drawings. The following embodiment shows an example in which the present invention is applied to a cordless telephone, but this is not intended to limit the application of the present invention to a cordless telephone.

[Basic configuration]
FIG. 1 shows the overall configuration of a cordless telephone according to an embodiment of the present invention. As illustrated, the cordless telephone 100 includes one parent device 110a and one or more child devices 110b. Base unit 110 a is connected to external telephone network 103. The base unit 110a exchanges necessary phone book data and various setting data by performing wireless communication with the slave unit 110b. Further, the communication between the parent device 110a and the child device 110b allows the user to talk to the outside using the child device 110b.

  First, the configuration of base unit 110a will be described. FIG. 2 is a block diagram showing a schematic configuration of base unit 110a of cordless telephone 100.

  In FIG. 2, a base unit 110a includes a detection circuit 1, a line control circuit 2, a call circuit 3, a DSP (Digital Signal Processor) 4, a radio transmission / reception circuit 5, an antenna 6, a CPU 7, and a key switch 8. And a driver 9 connected to the CPU 7 and a display 10 such as a liquid crystal panel or an organic EL driven by the driver 9.

  The detection circuit 1 detects an incoming line incoming signal and a received signal input to the external line connection terminals L1 and L2. The line control circuit 2 controls the line connection between the telephone and the outside line, and the call circuit 3 sends the received signal input via the line control circuit 2 to other circuits to be described later and the transmission signal to the outside line. Send it out. The DSP 4 functions as a modem for the CPU 7 while performing voice processing of reception signals input via the call circuit 3 and transmission signals sent to the outside line. The wireless transmission / reception circuit 5 forms a wireless communication circuit using the MCA (multi-channel access) method with the handset. The antenna 6 is used for wireless transmission and reception with the slave unit.

  The CPU 7 is connected to the line control circuit 2, the call circuit 3, the DSP 4, and the wireless transmission / reception circuit 5, and controls the operation of each circuit. The CPU 7 is connected to a storage unit 115a constituted by a memory or the like, and the memory 115a stores telephone book data and the like as will be described later.

  Further, the base unit 110a includes a ring circuit 11 that detects an incoming line incoming signal input from the external line connection terminals L1 and L2, a monitor speaker 12 that rings a ringing tone by detecting the incoming line incoming signal by the ring circuit 11, and a hands in the on-hook mode. It further includes a microphone 13 for making a free call, and an on-hook switch 14 for switching to an on-hook mode for making a call with the slave set.

  Next, the structure of the subunit | mobile_unit 110b is demonstrated. FIG. 3 is a block diagram showing a schematic configuration of the slave unit 110b of the cordless telephone 100. As shown in FIG.

  In FIG. 3, the slave unit 110 b is connected to the antenna 21, the wireless transmission / reception circuit 22, the DSP 23, the CPU 24, the key switch 25 that is connected to the CPU 24 and performs data input such as a telephone number and telephone operation, and the CPU 24. And a display panel 27 such as a liquid crystal panel or an organic EL driven by the driver 26. The slave unit 110b further includes a microphone 28 and a receiver 29.

  The antenna 21 is used for wireless transmission and reception with the parent device 110a. The wireless transmission / reception circuit 22 forms an MCA wireless communication circuit with the parent device 110 a via the antenna 21. The DSP 23 performs voice processing of a reception signal input via the wireless transmission / reception circuit 22 and a transmission signal transmitted to an external line, and functions as a modem for the CPU 24. The CPU 24 is connected to the DSP 23 and the wireless transmission / reception circuit 22 and controls the operation of each circuit. A memory 115b as a storage unit is connected to the CPU 24, and the memory 115b stores telephone book data and the like.

[First embodiment]
Next, the first embodiment will be described. FIG. 4 is a functional block diagram showing a schematic configuration of a portion related to security management according to the first embodiment. As shown in the figure, the cordless telephone is configured such that the parent device 110a and the child device 110b can communicate with each other via the antenna units 6 and 21, respectively.

  The master unit 110a includes a main control unit 111a, a display unit 112a, an operation unit 113a, a wireless unit 114a, and a storage unit 115a. The main control unit 111a performs necessary control over the entire data transmission / reception process from the parent device 110a to the child device 110b, or vice versa, in addition to the call processing using the parent device 110a. .

  The display unit 112a is configured by a liquid crystal panel, for example, and is used to display necessary information related to the telephone such as a telephone number. The operation unit 113a includes operation buttons operated by the user. The wireless unit 114a wirelessly communicates necessary data with the slave unit.

  The storage unit 115a records registration data registered by the user in the parent device 110a or the child device 110b as telephone directory data. The storage unit 115a also stores transmission / reception history data and the like.

  Furthermore, base unit 110a includes human sensor 121a, dial signal generation unit 122a, and voice message reproduction means 123a. The human sensor 121a can be, for example, a sensor using infrared rays, and outputs a detection signal to the main controller 111a in response to movement of a person or an object in the room. The human sensor 121a is basically attached to the main body of the parent device 110a. However, the human sensor 121a may be configured to be arranged at a location separate from the main body of the parent device 110a. In this case, an intruder can be quickly detected by installing only the human sensor 121a at a specific position in the room, for example, the entrance.

  When the human sensor 121a detects an abnormality such as an intruder, the dial signal generator 122a provides a dial signal for notifying the owner of the house (hereinafter referred to as "user") to that effect. Generate. Note that a voice message is transmitted to a telephone number set in advance by the user in order to notify the user of the abnormality detected by the human line difference 121a. The destination telephone number of the voice message is usually the user's mobile phone number or work number, and is determined in advance by the user and stored in the storage unit 115a.

  The voice message reproducing means 123a can be configured with, for example, an IC memory for storing voice data, and reproduces a voice message registered in advance. That is, when the human sensor 121a reacts, the dial signal generated by the dial signal generator 122a is automatically sent to the user's mobile phone, and the voice message is reproduced. Therefore, when the human sensor 121a detects an intruder or the like, a call is automatically made to a user's mobile phone set in advance, and the presence of the intruder is estimated, or the sensor has reacted. A voice message indicating the above is reproduced.

  On the other hand, the slave unit 110b includes a main control unit 111b, a display unit 112b, an operation unit 113b, and a wireless unit 114b, and the functions of each unit are the same as those of the master unit 110a.

  In the following description, if it is not necessary to distinguish between the constituent elements of the master unit or the slave unit, the suffix is omitted. For example, “main control unit 111a” refers to the main control unit of the parent device, and “main control unit 111” refers to either the main control unit of the parent device or the child device. To do.

  FIG. 5A is a block diagram showing an internal structure of the storage unit 115a shown in FIG. The storage unit 115a includes a telephone directory memory 116a, a transmission history memory 116b, a reception history memory 116c, and other memory 116d that stores other necessary information.

  An example of the phone book data 135 stored in the phone book memory 115a is shown in FIG. As illustrated, the phone book data 135 includes a plurality of registration data 136. One registration data 136 corresponds to one telephone number, and each registration data 136 includes the name of the other party, a telephone number, an electronic mail (E-mail) address, and the like.

  The transmission history memory 116b stores past transmission history data, and the reception history memory 116c stores past reception history data. The destination telephone number of the voice message when the human sensor 121a reacts can be stored in the other memory 116d.

  The cordless telephone 100 has an answering machine function. Specifically, according to a program prepared in advance, main controller 111a of base unit 110a executes an answering machine function. That is, when the user performs a setting operation of the answering machine mode using a predetermined operation button or the like of the operation unit 113a, the main control unit 111a shifts to the answering machine mode. When the user operates the operation unit 113a to cancel the answering machine mode, the main control unit 111a ends the answering machine mode and operates in the normal mode. Note that the answering machine function itself is already known, and various known answering machine functions can be used in the present invention, and thus detailed description thereof is omitted.

  Next, security management processing according to this embodiment will be described. FIG. 6 shows a flowchart of the security management process according to the first embodiment. This security management process can be realized by executing a program prepared in advance by the main control unit 111a of the parent device 110a. Note that the processing of this flowchart is repeatedly executed at a predetermined cycle.

  First, the main control unit 111a determines whether or not the current state is the answering machine mode (step S1). When not in the answering machine mode (step S1; No), the main control unit 111a determines whether or not the user has set the answering machine mode (step S2). If no setting has been made, the process ends. On the other hand, when the answering machine mode is set (step S2; Yes), the main control unit 111a turns on the human sensor 121a so that the movement of a person or an object can be detected (step S3).

  When it is determined in step S1 that the user is in the answering machine mode (step S1; Yes), the main control unit 111a determines whether an operation for canceling the answering machine mode is performed by the user (step S4). When an operation for canceling the answering machine mode is performed (step S4; Yes), the main control unit 111a turns off the human sensor 121a (step S5).

  On the other hand, when the operation for canceling the answering machine mode is not performed (step S4; No), the main control unit 111a determines whether or not the human sensor 121a has reacted, that is, whether or not movement of a person or an object has been detected. Is determined (step S6). This determination is made based on a detection signal from the human sensor 121a. When the human sensor 121a reacts (step S6; Yes), the main control unit determines whether or not the timer is activated (step S7).

  This timer is mainly used to discriminate between an intruder and the user himself / herself. If the voice sensor 121a reacts and immediately sends a voice message to the user's mobile phone or the like, the movement of the user who has returned home is detected by the human sensor 121a and a voice message is sent. It will be. That is, until the user himself / herself returns to operate the telephone 100 to cancel the answering machine function, and the human sensor 121a is released in conjunction with the operation, the human sensor 121a detects the user himself / herself, A voice message is sent as an intruder. Therefore, a voice message is transmitted to the mobile phone every time the user returns home.

  In order to prevent this problem, a timer is used in this embodiment. The set time of the timer is set to be approximately equal to the time required until the setting of the answering machine function is canceled after the user returns home and is detected by the human sensor 121a. Normally, the answering machine function is set and canceled by an operation button on the main unit 110a. Therefore, when the human sensor 121a is provided on the main unit 110a, the timer setting time is considerably shortened. If the installation location of the sensor 121a is away from the main unit 110a main body, the timer setting time becomes longer.

  If the timer is not activated in step S7, the main control unit 111a activates the timer and sets a predetermined time (step S8). On the other hand, if the timer is running (step S7; Yes), the main control unit 111a determines whether or not the time set in the timer has elapsed (step S9). If the time set in the timer has not elapsed, the process ends.

  In this way, when the abnormality detection by the human sensor 121a continues for the set time of the timer or more, the determination result of step S9 becomes affirmative (Yes). That is, the reaction of the human sensor 121a at that time is determined not to have been detected by the human sensor 121a while releasing the answering machine function after the user returned home. Therefore, the presence of an intruder is estimated, and the main control unit 111a closes the telephone line (step S10) and controls the dial signal generation unit 122a to make a dial call to the user's mobile phone ( In step S11), the voice message reproducing means 123a is controlled to send a voice message (step S12). In this way, the user can listen to a voice message notifying the presence of an intruder using a mobile phone or the like. Thereafter, the main control unit 111a releases the telephone line (step SS13) and ends the process.

  Thus, the security function can be realized by the telephone with the answering machine function. Setting an answering machine function when you go out and releasing it when you go home is a relatively common practice, so you can avoid forgetting to set it up compared to installing a dedicated security device. Easy to do. Compared with a dedicated security system on the market, it can be realized simply by adding a human sensor to a telephone with an answering machine function, so that low-cost security management for ordinary homes can be realized.

  Further, in this embodiment, only when the human sensor detects an abnormality even after a predetermined timer set time has elapsed after the human sensor has reacted, the dial transmission for notifying the user to that effect Is done. Therefore, it is possible to prevent a problem that the human sensor detects the user himself and dials the call after the user returns home and cancels the answering machine function.

  In the above embodiment, the case where the human sensor 121a is provided only in the master unit has been described, but the application of the present invention is not limited to this. That is, the human sensor may be provided in the child device instead of the parent device, or may be provided in both the parent device and the child device.

  FIG. 7 shows a configuration example in the case where a human sensor is also provided in the slave unit. The parent device 110a is provided with a human sensor 121a, a dial signal generator 122a and a voice message 123a, and the child device 110b is provided with a human sensor 121b. In this case, when the human sensor 121b of the child device 110b reacts and outputs a detection signal, the main control unit 111b of the child device 110b notifies the parent device 110a via the wireless unit 114b and the antenna 21. Good. That is, the main control unit 111a of the parent device 110a receives a notification indicating the reaction of the human sensor 121b of the child device 111b from the child device 111b and receives a detection signal from the human sensor 121a in the parent device 110a. A similar process may be executed.

  In this way, if a human sensor is also provided in the slave unit, it is possible to monitor over a wide range in a room or a house. For example, in an environment where one slave unit is installed in each of a plurality of rooms including a child room, an abnormality can be monitored for each room.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the first embodiment, a voice message is transmitted to a user's mobile phone or the like when the human sensor reacts. On the other hand, in the second embodiment, when the human sensor reacts, the surrounding image is taken, and the image data is attached to e-mail or the like and transmitted to the user.

  FIG. 8 shows functional blocks of portions related to security management of the cordless telephone according to the second embodiment. As understood from comparison with FIG. 4, the master unit 110a does not have the dial signal generation unit 122a and the voice message reproduction unit 123a. Instead, the Internet connection unit 125a and the network interface 126a are connected to the Internet 150. It is configured as possible. The master unit 110a is provided with a photographing device 124a. The configuration of the slave unit 111b is the same as that of the first embodiment.

  As the imaging device 124a, for example, a small camera mounted on a recent camera-equipped mobile phone or the like can be used. Preferably, photographing device 124a is provided in parent device 110a. The imaging device 124a operates in conjunction with the human sensor 121a. That is, when the human sensor 121a detects an abnormality and outputs a detection signal, the main control unit 111a executes photographing by the photographing device 124a in response thereto. Therefore, it is desirable that the photographing range by the photographing device 124a substantially coincides with the abnormality detection range by the human sensor 121a. By doing so, it is possible to take an image of a range in which movement of a person or an object is detected by the human sensor, so that it is highly possible to take an image of an intruder or a place where an abnormality has occurred. Note that the image capturing device 124a may capture one or a plurality of still images, or may capture a relatively coarse resolution moving image with a reduced amount of data.

  In the second embodiment, when the human sensor reacts, an e-mail is transmitted to a preset e-mail address. The mail address is input in advance by the user operating the operation unit 113a of the parent device 110a, and stored in the other memory 116d of the storage unit 115a.

  When the human sensor 121a reacts and the image capturing device 124a captures an image in response thereto, the main control unit 111a automatically sends an e-mail with the image data attached to the e-mail address stored in the storage unit 115a in advance. Send to. The user sets a mail address of a terminal device that can receive and browse an electronic mail with an image, such as a mobile phone or a PC used in a company, as a transmission destination address. When an abnormality is detected by the human sensor 121a, the user uses a terminal device such as a mobile phone to receive an e-mail attached with image data in the vicinity of the user, and looks at the attached image to check the indoor conditions. I can know.

  Next, security management processing according to the second embodiment will be described. FIG. 9 shows a flowchart of security management processing according to the second embodiment. The processing in steps S31 to S39 shown in FIG. 9 is the same as the processing in steps S1 to S9 of the security management processing according to the first embodiment shown in FIG.

  In step S39, when the reaction of the human sensor 121a continues for a predetermined time or longer (step S39; Yes), the main control unit 111a controls the photographing device 124a to perform photographing (step S40). Thereby, image data in the vicinity of the human sensor 121a is obtained.

  Next, the main control unit 111a performs necessary data conversion processing on the obtained image data (step S41). The necessary data conversion processing includes conversion to a data format that can be displayed by a destination terminal device or e-mail software, compression processing for reducing the amount of data, and the like. Further, the main control unit 111a reads the transmission destination address from the storage unit 115a and creates an e-mail (step S42). This e-mail can include, for example, a standard message indicating that an abnormality has been detected in the body, and the image data after the processing in step S41 is attached. Then, the main control unit 111a transmits the created electronic mail via the Internet connection unit 125a and the network interface 126a (step S43). The user can view the e-mail with a predetermined terminal device such as his / her mobile phone. By looking at the image data attached to the e-mail, the indoor situation can be grasped.

  Thus, according to the second embodiment, the user can not only know the occurrence of the abnormality, but can also see the image of the situation where the abnormality is detected, so whether there is really an intruder, It is possible to understand or infer the details of the abnormality in more detail, including the determination as to whether it is a malfunction.

[Modification]
In the above cordless telephone, as shown in FIG. 2, a microphone 13 for hands-free calling is provided in the base unit 110a. Therefore, when the human sensor reacts, the microphone 13 for hands-free calling may be turned on to record surrounding sounds. If the recorded voice is recorded as voice data in the other memory 116d of the storage unit 115a, for example, the user can reproduce it after returning home.

1 schematically shows the overall configuration of a cordless telephone according to an embodiment of the present invention. It is a block diagram which shows schematic structure of a main | base station. It is a block diagram which shows schematic structure of a subunit | mobile_unit. It is a block diagram which shows the structure relevant to the security management by 1st Example. It is a figure which shows the structural example of the memory | storage part by a 1st Example, and the example of telephone directory data. It is a flowchart of the security management process by 1st Example. It is a block diagram which shows the element relevant to security management by the modification of 1st Example. It is a block diagram which shows the structure relevant to the security management by 2nd Example. It is a flowchart of the security management process by 2nd Example.

Explanation of symbols

6, 21 Antenna 100 Cordless telephone 110a Master unit 110b Slave unit 111a, 111b Main control unit 112a, 112b Display unit 113a, 113b Operation unit 114a, 114b Radio unit 115a, 115b Storage unit 116a Phonebook memory 121a, 121b Human sensor 122a Dial signal generator 123a Voice message playback means 124a Image taking device 135 Phonebook data 136 Registration data

Claims (7)

A telephone having an answering machine function,
An answering machine setting means for setting the answering machine function;
A security unit configured to be operable when the answering machine function is set, and the security unit includes:
A human sensor,
A telephone set comprising: a transmission unit configured to make a call to a preset telephone number when the human sensor reacts for a predetermined time or more. A telephone having an answering machine function,
An answering machine setting means for setting the answering machine function;
A security unit configured to be operable when the answering machine function is set, and the security unit includes:
A human sensor,
A photographing device for photographing a surrounding image when the human sensor reacts;
And a transmission unit configured to transmit the surrounding image to a preset destination.   The telephone according to claim 2, wherein the transmission means transmits an e-mail including the image to a preset mail address.   The telephone according to claim 2 or 3, wherein the photographing device is arranged at a position for photographing within a detection range of the human sensor.   The telephone according to any one of claims 2 to 4, wherein the photographing device photographs the surrounding image when the human sensor reacts for a predetermined time or more.   The telephone set according to any one of claims 1 to 5, wherein the security unit is set to be inoperable when the answering machine function is released. The said telephone is a cordless telephone provided with a main | base station and a subunit | mobile_unit, The said security part is provided in at least one of the said main | base station or a subunit | mobile_unit, The Claim 1 thru | or 6 characterized by the above-mentioned. Phone.

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