JP2007243596A - Answering machine system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a malicious person can easily reproduce business data by using a PC, etc., when a recording medium is stolen, etc., so as to possibly cause the leak of the business data with secrecy to an outer part since the recording medium where the business data is recorded by an answering machine is removably connected so as to allow the business data recorded in the recording medium to be reproducible by the PC, etc. <P>SOLUTION: Encryption business data is generated, which is obtained by encrypting the business data, based on encryption key data which is received by an incoming side answering machine. The generated encryption business data is recorded in the recording medium and also the encryption key data is stored in the storage part of the answering machine. When the business data is reproduced, the encryption business data of the recording medium is decrypted based on the encryption key data of the storage part. Then, the business data is reproduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an answering machine system that includes an answering machine that receives message data indicating the content of communication from a caller from a calling telephone device, and a recording medium that is detachably connected to the answering machine, in particular. The present invention also relates to an answering machine system that encrypts the business data.

There is known an answering machine system capable of recording message data indicating the contents of communication from a caller when the called party is absent and reproducing the recorded message data later. For example, in Patent Document 1 below, an answering machine that receives message data from a calling telephone device and a record that is detachably connected to the answering machine to record the received message data. An answering machine system having a medium is disclosed. Further, it is known that data recorded on this recording medium can be reproduced even using a PC (Personal Computer) or the like.
JP 2000-184052 A

  However, the answering machine system described above has the following problems to be solved. That is, the answering machine is detachably connected to a recording medium for recording the business data, and the business data recorded on the recording medium can be reproduced by a PC or the like. If the user is stolen, the Service-to-Self can easily reproduce the business data using a PC or the like, and there is a possibility that confidential business data may leak out. In addition, when the business data recorded on the recording medium is copied and stored on a PC or the like, if the PC is damaged by hacking or virus infection, the business data stored via the Internet is externally stored. The leaked service data may be misused by the Service-to-Self.

The present invention adopts the following configuration in order to solve the above points.
<Configuration 1>
In the answering machine system comprising: an answering machine that receives message data indicating the content of communication from the caller from the calling telephone, and a recording medium that is detachably connected to the answering machine, the received message Including an encryption key generation unit for generating encryption key data for encrypting business data, wherein the answering machine is configured to register the generated encryption key data in a storage unit, and the received Data encryption unit for encrypting the business data based on the encryption key data registered in the storage unit to generate encrypted business data, and the generated encrypted business data to the recording medium A data recording control unit for recording on the storage unit, and a data reproduction unit for decrypting the encrypted item data and reproducing the decrypted item data based on the encryption key data in the storage unit. And wherein the Rukoto.
<Configuration 2>
In the answering machine system according to Configuration 1, the answering machine includes the encryption key generation unit, and the encryption key generation unit receives an encryption instruction signal indicating an instruction to encrypt the business data from the telephone device. Encryption key data for encrypting the received business data is generated.
<Configuration 3>
In the answering machine system according to Configuration 1, the telephone device includes the encryption key generation unit, and the telephone device further includes an input unit for inputting an encryption instruction signal indicating an instruction to encrypt the business data, When the encryption key generation unit receives the encryption instruction signal from the input unit, the encryption key generation unit generates encryption key data for encrypting the received item data.
<Configuration 4>
In the answering machine system according to any one of Configurations 1 to 3, the encryption key generation unit generates different encryption key data for each item of data based on random number data.

  In the answering machine system according to the present invention, based on the encryption key data received by the answering machine on the called side, the encrypted data is generated by encrypting the business data, and the generated encrypted data is recorded. In addition to recording on the medium, the encryption key data is stored in the storage unit of the answering machine, and when reproducing the business data, the encrypted business data on the recording medium is decrypted based on the encryption key data in the storage unit. Since the case data is played back, the request data can be played back only by the answering machine on the receiving side. Therefore, even when the recording medium is stolen, the business data can be prevented from being reproduced by the PC or the like, and confidential business data can be prevented from leaking outside.

  In addition, when the encryption data recorded on the recording medium is copied and saved on a PC, etc., even if the encryption data is leaked to the outside via the Internet due to hacking or virus infection, it is encrypted. Since the business data cannot be reproduced, it is possible to prevent the leaked business data from being misused by the Service-to-Self.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

<Configuration of Example>
FIG. 1 is a block diagram showing an answering machine system according to the present invention.

  As shown in FIG. 1, the answering machine system of the present embodiment comprises a calling side telephone device 10, an incoming side answering machine 20, a recording medium 30, and a public line network 40.

  The recording medium 30 is a memory that is detachably connected to the answering machine 20 such as a memory stick, a compact flash (registered trademark), or the like.

  The telephone device 10 includes a control unit 11, an input unit 13 including a push button, a communication control unit 14, and an encryption key generation unit 15.

  In this embodiment, the input unit 13 is composed of buttons indicating numbers from “0” to “9” and a playback button for instructing playback of business data as will be described later. To do.

  The answering machine 20 includes a control unit 21, a storage unit 22, an input unit 23 including a push button, a communication control unit 24, an encryption key registration unit 25, a data encryption unit 26, a data recording control unit 27, and a reproduction instruction unit 28. The data reproducing unit 29 is provided.

  The storage unit 22 is a memory such as a ROM, and stores answering machine response voice data and encryption request voice data.

  Answering voice response data is used to receive message data indicating the content of the message from the caller. For example, the message data is sent to the caller such as “I am currently away. Is voice data instructing the input of.

  In order to determine whether or not the received request data is to be encrypted, the encryption request voice data is, for example, “If you want to encrypt the request data, press“ 0 ”to call The voice data prompts the caller to instruct whether or not to encrypt the business data, such as “Please hang up if not encrypted.

  Hereinafter, the interrelation between the telephone device 10, the answering machine 20, the recording medium 30, and the public line network 40 of the answering machine system of this embodiment will be described.

  In this embodiment, it is assumed that the recording medium 30 is attached to the answering machine 20.

  The control unit 11 of the telephone device 10 is a unit that performs overall control of the telephone device 10 as a so-called CPU. For example, a caller removes a voice input / output unit such as a receiver (not shown) from a predetermined position, and inputs via the input unit 13. When the input of the telephone number data indicating the telephone number of the answering machine 20 on the receiving side is completed, the telephone number data is transferred to the communication control unit 14.

  The communication control unit 14 is a unit that establishes communication with the answering machine 20. Upon receipt of the telephone number data, the communication control unit 14 temporarily stores the telephone number data in a memory (not shown) and transmits the telephone number data via the public line network 40. An incoming call instruction signal is transmitted to the answering machine 20 based on the above.

  The control unit 21 of the answering machine 20 is a unit that performs overall control of the answering machine 20 as a so-called CPU. When receiving the incoming instruction signal, the incoming instruction signal is transferred to the communication control unit 24.

  The communication control unit 24 is a unit that controls communication with the telephone device 10 on the calling side, and starts communication control according to the setting when receiving an incoming call instruction signal. That is, in this embodiment, since the answering machine control mode is set, a ringing sound is output to a voice output unit such as a speaker (not shown), and when a predetermined time elapses, the content of the communication from the caller is displayed. In order to receive the message data to be shown, the communication is established and the answering voice response data in the storage unit 22 is transmitted to the telephone device 10 via the public network 40.

  If the answering machine control mode is not set, a ringing sound is output to a voice output unit such as a speaker (not shown) in the same manner as described above, and communication with the telephone device 10 is established as in the conventional case when the callee answers the call. Is done.

  Upon receiving the answering machine response voice data, the control unit 11 of the telephone device 10 transfers the answering machine answering voice data to a voice playback unit (not shown). Play the answering voice response such as “Please request.

  When the caller listens to the answering machine answering voice via a handset (not shown) and inputs the business data indicating the content of the communication, the control unit 11 of the telephone device 10 transfers the input business data to the communication control unit 14. To do.

  Upon receiving the business data, the communication control unit 14 transmits the business data to the answering machine 20 based on the telephone number data in the memory.

  When receiving the business data, the control unit 21 of the answering machine 20 temporarily stores the business data in the storage unit 22 and subsequently transfers the encryption request voice data in the storage unit 22 to the communication control unit 24.

  Upon receiving the encryption request voice data, the communication control unit 24 transmits the encryption request voice data to the telephone device 10.

  When the control unit 11 of the telephone device 10 receives the encryption request voice data, the control unit 11 transfers the encryption request voice data to a voice playback unit (not shown). To encrypt the data, press “0” to hang up the phone. If you do not want to encrypt it, hang up the phone.

  The control unit 11 of the telephone device 10 listens to the encryption request voice via a receiver (not shown), and when the voice input / output unit of the receiver (not shown) is returned to a predetermined position, for example, to disconnect communication, The disconnection instruction signal is transferred to the communication control unit 14.

  When receiving the disconnection instruction signal, the communication control unit 14 transmits the disconnection instruction signal to the answering machine 20 based on the telephone number data in the memory.

  On the other hand, when the caller hears the encryption request voice via a receiver (not shown) and inputs “0” via the input unit 13 to encrypt the business data, the control unit 11 of the telephone device 10 An encryption instruction signal indicating an encryption instruction is transferred to the encryption key generation unit 15.

  When receiving the encryption instruction signal, the encryption key generation unit 15 generates encryption key data for encrypting the business data.

  When the encryption key generation unit 15 generates the encryption key data, the control unit 11 transmits the generated encryption key data to the answering machine 20 based on the telephone number data in the memory.

  When receiving the encryption key data, the control unit 21 of the answering machine 20 transfers the encryption key data to the encryption key registration unit 25.

  The encryption key registration unit 25 is a unit for registering encryption key data. When the encryption key data is received, the encryption key data is registered in the storage unit 22.

  Then, for example, when the caller returns a voice input / output unit such as a handset (not shown) to a predetermined position, the control unit 11 of the telephone device 10 transfers a disconnection instruction signal to the communication control unit 14 to disconnect the communication.

  When receiving the disconnection instruction signal, the communication control unit 14 transmits the disconnection instruction signal to the answering machine 20 based on the telephone number data in the memory.

  When receiving the disconnection instruction signal, the control unit 21 of the answering machine 20 transfers the disconnection instruction signal to the communication control unit 24.

  When receiving the disconnection instruction signal, the communication control unit 24 disconnects the communication between the telephone device 10 and the answering machine 20.

  The control unit 21 of the answering machine 20 refers to the storage unit 22 when the communication control unit 24 disconnects the communication, and when the encryption key data is stored, the storage unit starts the encryption of the business data. The encryption key data 22 is transferred to the data encryption unit 26, and if the encryption key data is not stored, the business data in the storage unit 22 is transferred to the data recording control unit 27.

  The data encryption unit 26 is a unit that encrypts the business data. Upon receiving the encryption key data, the data encryption unit 26 encrypts the business data in the storage unit 22 based on the encryption key data. Generate.

  When the data encryption unit 26 generates the encryption data, the control unit 21 of the answering machine 20 transfers the generated encryption data to the data recording control unit 27.

  The data recording control unit 27 is a unit that records the business data and the like on the recording medium 30. Upon receipt of either the business data or the encrypted business data, the data recording control unit 27 stores the received business data and encrypted business data. Either one is recorded on the recording medium 30.

  Next, a description will be given until the answering machine 20 decrypts the encrypted data recorded on the recording medium 30 and reproduces it.

  When the encrypted business data recorded on the recording medium 30 is reproduced, the callee of the answering machine 20 presses a reproduction button or the like provided on the main body of the answering machine 20, for example.

  The reproduction instructing unit 28 is a unit for instructing reproduction of the business data. When a reproduction button or the like is pressed, a reproduction instruction signal for instructing reproduction of the business data is output to the data reproducing unit 29.

  The data reproducing unit 29 is a unit that reproduces the case data. Upon receiving the reproduction instruction signal, the data reproducing unit 29 decrypts the encrypted case data in the recording medium 30 based on the encryption key data in the storage unit 22, and The decrypted business data is reproduced via an audio output unit such as a speaker (not shown).

  In this way, based on the encryption key data received by the answering machine 20 on the receiving side, the encrypted data is generated by encrypting the business data, and the generated encrypted data is recorded on the recording medium 30. At the same time, the encryption key data is stored in the storage unit 22 of the answering machine, and at the time of reproduction of the business data, the encrypted business data of the recording medium 30 is decrypted based on the encryption key data of the storage unit 22 and used. Since the case data is reproduced, the case data can be reproduced only by the answering machine 20.

<Operation of Example>
The operation of the answering machine system according to this embodiment will be described below.

  First, a description is given from the answering machine 20 to encrypting the message data received from the telephone 10 and recording it in the recording medium 30.

  In the communication control unit 24 of the answering machine 20 according to the present embodiment, since there is no incoming caller, an answering machine control mode for recording the business data indicating the contents of communication from the caller on the recording medium 30 is set in advance. I will do it.

  FIG. 2 is an encryption operation flowchart of the answering machine system according to the first embodiment.

  For example, the control unit 11 of the telephone device 10 removes a voice input / output unit such as a handset (not shown) from a predetermined position, and a telephone number indicating the telephone number of the answering machine 20 on the receiving side via the input unit 13. When the data input is completed, the telephone number data is transferred to the communication control unit 14.

  Upon receiving the telephone number data, the communication control unit 14 temporarily stores the telephone number data in a memory (not shown) and transmits an incoming call instruction signal to the answering machine 20 based on the telephone number data via the public line network 40. (S1).

  When receiving the incoming instruction signal, the control unit 21 of the answering machine 20 transfers the incoming instruction signal to the communication control unit 24.

  When receiving an incoming call instruction signal, the communication control unit 24 starts communication control according to the setting. That is, in this embodiment, since the answering machine control mode is set, a ringing tone is output to a voice output unit such as a speaker (not shown), and when a predetermined time elapses, the content of the communication from the caller is displayed. In order to receive the message data to be shown, communication is established, and answering voice response data in the storage unit 22 is transmitted to the telephone device 10 via the public line network 40 (S2).

  If the answering machine control mode is not set, a ringing sound is output to a voice output unit such as a speaker (not shown) in the same manner as described above, and communication with the telephone device 10 is established as in the conventional case when the callee answers the call. Is done.

  Upon receiving the answering machine response voice data, the control unit 11 of the telephone device 10 transfers the answering machine answering voice data to a voice playback unit (not shown). The answering voice response such as “Please do business” is reproduced (S3).

  When the caller listens to the answering machine answering voice via a handset (not shown) and inputs the business data indicating the content of the communication, the control unit 11 of the telephone device 10 transfers the input business data to the communication control unit 14. To do.

  Upon receiving the business data, the communication control unit 14 transmits the business data to the answering machine 20 based on the telephone number data in the memory (S4).

  When receiving the business data, the control unit 21 of the answering machine 20 temporarily stores the business data in the storage unit 22 and subsequently transfers the encryption request voice data in the storage unit 22 to the communication control unit 24.

  Upon receiving the encryption request voice data, the communication control unit 24 transmits the encryption request voice data to the telephone device 10 (S5).

  When the control unit 11 of the telephone device 10 receives the encryption request voice data, the control unit 11 transfers the encryption request voice data to a voice playback unit (not shown). To encrypt the case data, press “0” to hang up the phone. If not, hang up the phone as it is ”, and the encryption request voice is reproduced (S6).

  The control unit 11 of the telephone device 10 listens to the encryption request voice via a receiver (not shown), and when the voice input / output unit of the receiver (not shown) is returned to a predetermined position, for example, to disconnect communication, The disconnection instruction signal is transferred to the communication control unit 14.

  When receiving the disconnection instruction signal, the communication control unit 14 transmits the disconnection instruction signal to the answering machine 20 based on the telephone number data in the memory.

  On the other hand, when the caller hears the encryption request voice via a receiver (not shown) and inputs “0” via the input unit 13 to encrypt the business data, the control unit 11 of the telephone device 10 An encryption instruction signal indicating an encryption instruction is transferred to the encryption key generation unit 15 (S7).

  Upon receiving the encryption instruction signal, the encryption key generation unit 15 generates encryption key data for encrypting the business data (S8).

  When the encryption key generation unit 15 generates the encryption key data, the control unit 11 transmits the generated encryption key data to the answering machine 20 based on the telephone number data in the memory (S9).

  When receiving the encryption key data, the control unit 21 of the answering machine 20 transfers the encryption key data to the encryption key registration unit 25.

  When receiving the encryption key data, the encryption key registration unit 25 registers the encryption key data in the storage unit 22 (S10).

  Then, for example, when the caller returns a voice input / output unit such as a handset (not shown) to a predetermined position, the control unit 11 of the telephone device 10 transfers a disconnection instruction signal to the communication control unit 14 to disconnect the communication.

  When receiving the disconnection instruction signal, the communication control unit 14 transmits the disconnection instruction signal to the answering machine 20 based on the telephone number data in the memory (S11).

  When receiving the disconnection instruction signal, the control unit 21 of the answering machine 20 transfers the disconnection instruction signal to the communication control unit 24.

  When receiving the disconnection instruction signal, the communication control unit 24 disconnects the communication between the telephone device 10 and the answering machine 20 (S12).

  The control unit 21 of the answering machine 20 refers to the storage unit 22 when the communication control unit 24 disconnects the communication. When the encryption key data is stored, the control unit 21 starts the encryption of the business data. The encryption key data 22 is transferred to the data encryption unit 26 (S13 & S14). If the encryption key data is not stored, the business data in the storage unit 22 is transferred to the data recording control unit 27 (S13 & S15).

  Upon receiving the encryption key data, the data encryption unit 26 generates encrypted item data obtained by encrypting the item data in the storage unit 22 based on the encryption key data (S16).

  When the data encryption unit 26 generates the encryption data, the control unit 21 of the answering machine 20 transfers the generated encryption data to the data recording control unit 27 (S17).

  The data recording control unit 27 is a unit that records the business data and the like on the recording medium 30. Upon receipt of either the business data or the encrypted business data, the data recording control unit 27 stores the received business data and encrypted business data. Either one is recorded on the recording medium 30 (S18).

  Next, a description will be given until the encrypted message data recorded on the recording medium 30 is decrypted and reproduced by the answering machine 20.

  FIG. 3 is a flowchart of the operation for reproducing the encrypted data in the answering machine system according to the first embodiment.

  When reproducing the encryption-related data recorded on the recording medium 30, the called party of the answering machine 20 presses a playback button or the like provided on the main body of the answering machine 20 (S 1).

  When the reproduction button or the like is pressed, the reproduction instruction unit 28 outputs a reproduction instruction signal for instructing reproduction of the encrypted item data to the data reproduction unit 29 (S2).

  Upon receiving the reproduction instruction signal, the data reproducing unit 29 decrypts the encrypted item data on the recording medium 30 based on the encryption key data in the storage unit 22, and the decrypted item data is not shown in a speaker or the like. Are reproduced via the audio output unit (S3).

  In this way, based on the encryption key data received by the answering machine 20 on the receiving side, the encrypted data is generated by encrypting the business data, and the generated encrypted data is recorded on the recording medium 30. At the same time, the encryption key data is stored in the storage unit 22 of the answering machine, and at the time of reproduction of the business data, the encrypted business data of the recording medium 30 is decrypted based on the encryption key data of the storage unit 22 and used. Since the case data is reproduced, the case data can be reproduced only by the answering machine 20.

<Effect of Example>
In the answering machine system according to the present embodiment, the encrypted message data obtained by encrypting the message data is generated based on the encryption key data received by the answering machine 20 on the receiving side, and the generated encryption message data is generated. Is recorded on the recording medium 30 and the encryption key data is stored in the storage unit 22 of the answering machine. When the business data is reproduced, the encryption data of the recording medium 30 is based on the encryption key data of the storage unit 22. Since the data is decrypted and the message data is reproduced, the message data can be reproduced only by the answering machine 20. Accordingly, even when the recording medium 30 is stolen, the business data can be prevented from being reproduced by a PC or the like, and confidential business data can be prevented from leaking outside.

  In addition, when the encryption data recorded on the recording medium 30 is copied and saved on a PC or the like, it is encrypted even if the encryption data is leaked via the Internet due to hacking or virus infection. Therefore, it is possible to prevent the leaked requirement data from being misused by the Service-to-Self.

  In the above embodiment, the telephone device 10 and the answering machine 20 have been described as applied to a telephone that can send and receive only voice data. However, the present invention is not limited to this. Further, the present invention may be applied to a video phone that can exchange audio data and image data, a PC (Personal Computer) having an IP telephone function, and the like.

  In the above embodiment, the configuration is such that the calling telephone device 10 generates the encryption key data for encrypting the business data, but the present invention is not limited to this. For example, the telephone device 10 Only a signal for instructing data encryption may be transmitted to the answering machine 20 on the receiving side, and the answering machine 20 receiving the signal may generate encryption key data. Thereby, it is possible to prevent the encryption key data from being stolen by a third party while the encryption key data is being transmitted from the telephone device 10 on the transmission side to the answering machine 20, and further security improvement can be achieved.

The block block diagram which shows the answering machine system of this invention Encryption flowchart of the answering machine system according to the first embodiment Flowchart of reproducing operation data for encryption in the answering machine system according to the first embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Telephone apparatus 11 Control part 13 Input part 14 Communication control part 15 Encryption key generation part 20 Answering machine 21 Control part 22 Storage part 23 Input part 24 Communication control part 25 Encryption key registration part 26 Data encryption part 27 Data recording control part 28 playback instruction section 29 data playback section 30 recording medium 40 public network

Claims (4)

In an answering machine system comprising: an answering machine that receives message data indicating the content of communication from the caller from the calling telephone device, and a recording medium that is detachably connected to the answering machine,
An encryption key generation unit for generating encryption key data for encrypting the received item data;
The answering machine is
An encryption key registration unit for registering the generated encryption key data in a storage unit;
A data encryption unit that encrypts the received item data based on encryption key data registered in the storage unit to generate encrypted item data;
A data recording control unit for recording the generated encryption data on the recording medium;
An answering machine system comprising: a data reproducing unit that decrypts the encrypted item data and reproduces the decrypted item data based on encryption key data in the storage unit. The answering machine includes the encryption key generation unit;
When the encryption key generation unit receives an encryption instruction signal indicating an instruction to encrypt the business data from the telephone device, the encryption key generation unit generates encryption key data for encrypting the received business data. The answering machine system according to claim 1. The telephone device includes the encryption key generation unit,
Further, the telephone device includes an input unit for inputting an encryption instruction signal indicating an instruction to encrypt the business data,
The answering machine according to claim 1, wherein the encryption key generation unit generates encryption key data for encrypting the received item data when receiving the encryption instruction signal from the input unit. system. The answering machine according to any one of claims 1 to 3, wherein the encryption key generating unit generates different encryption key data for each item of data based on random number data.

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