JP2012058394A - Authentication system and authentication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an authentication system and device allowing a registered user to be correctly authenticated even when musical sounds corresponding to the user are reproduced and outputted in a state that parameters are changed.SOLUTION: An authentication device, when musical sounds reproduced and outputted from a terminal device contain additional sounds ("YES" in s530), matches parameters between specified musical sounds and target musical sounds based on the additional sounds (s560 to s570), before authentication for the musical sounds reproduced and outputted by using the specified musical sounds, and then compares the specified musical sounds with target musical sounds, and thereby authenticates a user corresponding to the specified musical sounds (s580). In this manner, the specified musical sounds are compared with the target musical sounds after the parameters are matched, thereby allowing the user corresponding to the specified musical sounds to be correctly authenticated even when the parameters of the specified musical sounds are changed.

Description

  The present invention relates to an authentication system comprising a musical sound reproducing device capable of reproducing musical sounds and an authentication device for authenticating a user of the musical sound reproducing device.

  In recent years, by inputting a musical sound reproduced and output from a musical sound reproduction device (mobile terminal) and determining whether the musical sound is a registered user (musical sound corresponding to ticket information), the user of the musical sound reproduction device An authentication system has been proposed (see Patent Document 1).

Japanese Patent No. 4501953

  However, some music playback devices, such as portable music players and karaoke devices, play music parameters to be played back (for example, pitch key values (hereinafter referred to as keys) for setting the pitch, and tempo values for setting the playback speed). In some cases, a function for changing the tempo) is provided, and if the parameter is changed according to the user's preference for the sound of the playback music based on this function, it corresponds to the registered user. Although the musical sound is reproduced and output, the authentication system side determines that the musical sound does not correspond to the registered user, and the user may not be correctly authenticated.

  The present invention has been made in order to solve such a problem, and the purpose of the present invention is to correct even when a musical sound corresponding to a registered user is reproduced and output with the parameters changed. It is to be able to authenticate the user.

In order to solve the above problems, a first configuration (claim 1) is an authentication system including a musical sound reproducing apparatus capable of reproducing musical sounds and an authentication apparatus for authenticating a user of the musical sound reproducing apparatus.
First, the musical sound reproducing device includes a musical sound output means for reproducing and outputting a specific musical sound (specific musical sound) indicated by the musical sound data from a speaker based on musical sound data stored in a reproduction-side storage unit included in the musical sound reproducing device. In response to the user's operation, the parameter changing means that can change a parameter related to a musical tone when the musical tone output means reproduces and outputs the specific musical tone, and the specific musical sound that is reproduced and output by the musical tone output means. Additional sound output means for reproducing and outputting an additional sound, which is a sound capable of specifying the changed amount of the changed parameter, from the speaker, and the musical sound output means is specified according to the parameter changed by the parameter changing means Play and output music.

  On the other hand, the authentication device includes a plurality of different tone input means for inputting a tone reproduced and output from the tone reproduction apparatus, and a specific tone in the tone input by the tone input means, each associated with a user. A musical sound that is authenticated as a user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound, as compared with the musical sound (target musical sound), which is associated with the target musical sound that shows a similarity equal to or higher than a predetermined threshold. When the additional sound is included in the musical sound input by the authenticating means and the musical sound input means, at least one of the specific musical sound and the target musical sound according to a change amount of a parameter specified by the additional sound Parameter matching means for matching the parameters of both musical tones by changing the same parameters in the musical tone input to the musical sound input by the musical tone input means. If the serial addition sound is included, that the parameters tone each other are aligned are compared by the parameter adjusting means, authentication by the musical sound authentication unit is performed.

  In the case of an authentication system having such a configuration, when an additional sound is included in a musical sound reproduced and output from the musical sound reproducing device, the authentication device performs authentication with a specific musical sound in the reproduced musical sound, The parameters of the specific musical sound and the target musical sound are matched based on the additional sound.

  As described above, since the parameters of the specific musical tone and the target musical tone are matched and authentication is performed based on the comparison between the two musical tones, even if the parameter of the specific musical tone is changed, the user corresponding to the specific musical tone is changed. Can be authenticated correctly.

  In this configuration, the “musical parameter” that is changed on the musical tone playback device side is, for example, the key of the musical tone to be played back and output (pitch level based on the musical tone before the change), tempo (length in the time direction) ), Parameters such as voice level and bandwidth.

  Further, the additional sound reproduced and output on the musical sound reproducing device side is a sound that can specify the amount of change in the parameter, for example, a sound that has different frequency components and combinations depending on the specific amount of change in the parameter. Or, it is a sound with different time and frequency of output with a specific component.

  Further, in the above configuration, the specific musical sound related to the authentication on the authentication device side is stored in advance in the reproduction-side storage unit of the musical sound reproduction device in association with the user of the musical sound reproduction device, and this is stored at the authentication timing. It is sufficient to reproduce and output with.

  Here, it is conceivable that the association between the specific musical sound and the user of the musical sound reproducing device is managed by a device different from the musical sound reproducing device. For this purpose, the above-described configuration is a second configuration described below (claims). 2).

A second configuration is an authentication system including the music sound reproducing device, the authentication device, and a management device.
First, in response to a user's operation, the music sound reproducing device transmits the identification information of the user to the management device, and after the identification information is transmitted by the reproduction side transmitting device, the identification information is transmitted. Reproducing-side storage means for storing the musical tone data transmitted from the management device that has received the information in the reproducing-side storage unit as indicating the specific musical tone.

  In addition, the management device, when receiving the identification information from the music reproduction device, a musical tone selection means for selecting a specific musical tone to be associated with the user identified by the identification information from a plurality of types of musical sounds A management-side transmission unit that transmits the identification information received from the musical tone reproduction device and the musical tone data indicating the specific musical tone selected by the musical tone selection unit based on the identification information to the authentication device. ing.

  And the said authentication apparatus is provided with the authentication side memory | storage means to memorize | store in the authentication side memory | storage part with which the said authentication apparatus is provided in the state which matched these, when the said identification information and the said sound data are received from the said management apparatus ing. The musical sound authenticating means compares a specific musical sound in the musical sound input by the musical sound input means with each musical sound (target musical sound) indicated by the musical sound data stored in the authenticating side storage unit. Authentication is performed to authenticate that the user associated with the target musical sound showing the similarity equal to or higher than the threshold is the user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound.

  With this configuration, after the management apparatus associates the identification information with the specific musical sound based on the identification information transmitted from the musical sound reproducing apparatus, the musical sound data and the identification information indicating the specific musical sound are stored in the authentication apparatus. Transmitted and stored. As a result, the authentication apparatus can perform authentication based on the comparison between the specific musical sound and the target musical sound.

In this configuration, the authentication device and the management device may be configured as separate devices that can communicate with each other, or may be configured as an integrated device.
In the above configuration, the specific musical sound associated with the user may be selected in any way. For example, the specific musical sound may be selected at random from a plurality of types of musical sounds. If it is possible to identify a user attribute (for example, gender, age, affiliation, etc.), it is possible to select a musical tone that matches that attribute.

  In each of the above-described configurations, the timing at which the musical sound reproducing device reproduces and outputs the additional sound is not particularly limited. For example, the musical sound reproducing device reproduces and outputs the specific musical sound, reproduces and outputs the specific musical sound, and reproduces after the specific musical sound. The timing of outputting can be considered.

Of these, when the additional sound is reproduced and output prior to the specific musical sound, the above-described configuration may be, for example, a third configuration (claim 3) described below.
In the musical sound reproducing apparatus of the third configuration, the additional sound output means is configured to reproduce and output the additional sound prior to the reproduction output of the specific musical sound by the musical sound output means. In the authentication apparatus, when the additional sound is input for the first time by the musical sound input unit, the parameter matching unit determines the additional sound according to the amount of change of the parameter specified by the additional sound. By changing the same parameter in at least one of the specific musical sound and the target musical sound that are input later, the parameters of both musical sounds are matched.

  With this configuration, when an additional sound is input prior to the specific musical sound, the authentication device can input the specific musical sound and the target musical sound that are input thereafter according to the amount of change in the parameter specified by the additional sound. It is possible to perform authentication based on a comparison of both musical sounds after matching the parameters.

In addition, in the case where the reproduction output is performed in a state where the additional sound is superimposed on the specific musical sound, it is conceivable that the above configuration is, for example, the configuration of 3-1 shown below.
In the musical tone reproducing apparatus having the 3-1 configuration, the musical tone output means reproduces and outputs the additional sound in a state of being superimposed on the musical sound reproduced and output by the reproduction output means. The authentication device includes an additional separation unit that separates the additional sound from the musical sound reproduced and output by the musical sound reproducing device, and the parameter matching unit separates the additional sound from the musical sound input by the musical sound input unit. In this case, according to the change amount of the parameter specified by the additional sound, the same parameter is changed in at least one of the specific musical sound from which the additional sound is separated and the comparison target musical sound to match the parameters.

  With this configuration, when the additional sound is separated from the musical sound reproduced and output by the musical sound reproducing device, the authentication device separates the additional sound according to the change amount of the parameter specified by the additional sound. Further, after matching the parameters of the specific musical sound and the target musical sound, which are the remaining components, authentication based on the comparison of both musical sounds can be performed.

In addition, when the additional sound is reproduced and output after the specific musical sound, the above configuration may be configured as, for example, a configuration 3-2 shown below.
In the musical tone reproduction apparatus having the configuration 3-2, the musical tone output means is configured to reproduce and output the additional sound after the reproduction output means reproduces and outputs the specific musical sound. In the authentication apparatus, when the additional sound is input after the specific musical sound by the musical sound input means, the parameter matching means determines the specific musical sound and the comparison target according to the change amount of the parameter specified by the additional sound. The parameters are matched by changing the same parameter in at least one of the musical sounds.

  With this configuration, when the additional sound is input after the specific musical sound, the authentication apparatus determines whether the specific musical sound and the target musical sound that are input in advance according to the amount of change in the parameter specified by the additional musical sound. It is possible to perform authentication based on a comparison of both musical sounds after matching the parameters.

  In each of the above configurations, when the parameters of the specific tone and the target tone are matched, the change amount of the same parameter in one tone is canceled according to the change amount of the parameter indicated by the additional tone. The direction may be changed. At this time, either the specific musical sound or the target musical sound may be changed, but considering the case where there are a plurality of target musical sounds to be compared with the specific musical sound, it is possible to change only the parameters of the specific musical sound, It is suitable for reducing the processing load.

As a configuration for this purpose, each of the above configurations may be a fourth configuration (claim 4) shown below.
In the authentication device of the fourth configuration, the parameter matching means responds to a parameter change amount specified by the additional sound when the additional sound is included in the musical sound input by the musical sound input means. Thus, by changing the same parameter in the specific musical sound, it is matched with the parameter of the target musical sound.

  With this configuration, by changing only the parameters of one specific musical tone, the parameters of the specific musical tone and the target musical tone can be matched, so there are a plurality of target musical sounds to be compared with the specific musical tone. The case is also preferable because the processing load for matching the parameters of both musical tones can be made constant regardless of the number of target musical tones.

In order to solve the above problem, a fifth configuration (Claim 5) is an authentication device that constitutes an authentication system together with a music sound reproducing device capable of reproducing music.
Here, the musical sound reproducing device reproduces and outputs the specific musical sound (specific musical sound) indicated by the musical sound data from the speaker based on the musical sound data stored in the reproduction-side storage unit included in the musical sound reproducing device. And a parameter changing unit capable of changing a parameter related to a musical tone when the musical tone output unit reproduces and outputs the specific musical tone in response to a user operation, and the specific musical tone reproduced and output by the musical tone output unit, and the parameter changing unit Additional sound output means for reproducing and outputting an additional sound, which is a sound that can specify the change amount of the parameter changed by the above, from the speaker, and the specific musical sound is reproduced and output according to the parameter changed by the parameter changing means. It is assumed that it is configured as follows.

  A musical tone input means for inputting a musical sound reproduced and output from the musical sound reproduction device, and a plurality of different musical sounds (target musical sounds) each corresponding to a specific musical sound in the musical sound input by the musical sound input means and the user. And a musical sound authenticating means for authenticating that a user associated with a target musical sound having a degree of similarity equal to or higher than a predetermined threshold is a user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound, When the additional sound is included in the musical sound input by the musical sound input means, the same parameter in at least one of the specific musical sound and the target musical sound is changed according to the amount of change of the parameter specified by the additional sound. Parameter matching means for matching parameters of both musical sounds, and the additional sound is included in the musical sound input by the musical sound input means. That case, the tone between the parameters have been aligned by the parameter alignment means that are compared, authentication by the tone authentication means is performed, and is configured to.

If it is this structure, a part of authentication system which concerns on said each structure can be comprised, and, thereby, the same effect | action and effect can be acquired.
In order to solve the above-mentioned problem, it is possible to consider a program that causes each component to perform the same procedure as each means in each component, and each component that executes this program has the above-described configuration. Similar actions and effects can be obtained.

  This program consists of an ordered sequence of instructions suitable for processing by a computer system, and is provided to an authentication device, a user who uses this, etc. via various recording media and communication lines. do it.

Block diagram showing the overall configuration of the authentication system Diagram showing processing procedure by authentication system Flow chart showing the procedure until preparation for user authentication The figure which shows the data structure (record) of the database memorize | stored in the memory | storage part of the management apparatus. Flow chart showing the procedure for user authentication

Embodiments of the present invention will be described below with reference to the drawings.
(1) Overall Configuration The authentication system 1 is a system for authenticating a user. As shown in FIG. 1, the terminal device 2 owned by the user, the authentication device 4 for authenticating the user of the terminal device 2, and the terminal And a management device 6 that can communicate with each of the device 2 and the authentication device 4.

  The terminal device 2 includes a control unit 21 incorporating a CPU, ROM, RAM, EEPROM, and the like, a storage unit 23 that stores processing results by the control unit 21, a user interface (U / I) 25 including a monitor and an operation panel, The mobile phone terminal includes a communication unit 27 that controls communication (wireless communication) via the network 100, a voice processing unit 29 that controls voice input from the microphone 31 and voice output from the speaker 33, and the like.

  Note that the terminal device 2 has a musical sound playback function for playing back and outputting the musical sound indicated by the musical sound data stored in the storage unit 23 from the speaker 33 via the voice processing unit 29, and parameters of the musical sound played back and output by this function. And a parameter changing function to be changed.

  The authentication device 4 includes a control unit 41 including a CPU, a ROM, and a RAM, a storage unit 43 that stores processing results by the control unit 41, a user interface (U / I) 45 including a keyboard, and communication via the network 100. A communication unit 47 for controlling the sound, a sound processing unit 49 for controlling sound input from the microphone 51 and sound output from the speaker 53, and the like. In the present invention, the authentication device 4 is implemented as a partial function of the karaoke device.

  The management device 6 includes a control unit 61 including a CPU, a ROM, and a RAM, a storage unit 63 that stores a processing result by the control unit 61, a user interface (U / I) 65 including a keyboard, and communication via the network 100. It is a server provided with the communication part 67 etc. which control.

The operation of the authentication system 1 having such a configuration will be described with reference to FIG.
In this authentication system 1, first, when the terminal device 2 makes a registration request to the management device 6 (a), the management device 6 selects and registers musical tone data corresponding to the identification information accompanying the registration request (b ) The musical tone data is transmitted to the terminal device 2 (c), and the musical tone data and the identification information are transmitted to the authentication device 4 (d). The terminal device 2 stores the musical sound data in the storage unit 23 (e), and the authentication device 4 stores the musical sound data and the identification information in association with each other in the storage unit 43 (f). Thus, preparation for user authentication is completed between the terminal device 2 and the authentication device 4.

  As described above, the terminal device 2 has a tone reproduction function and a parameter change function, and the corresponding parameter is set and changed by receiving an operation for changing the parameter by the parameter change function (g). . This operation is an operation accompanied by a parameter to be changed and a command for the change amount.

  In the present embodiment, since change information (initial value: change amount 0) indicating the change amount of the parameter is stored in the EEPROM of the control unit 21, the change information corresponds to the change content commanded by the operation. It is updated to the changed amount. As parameters, a key (frequency distribution), a tempo (length in the time direction), a sound level, a band, and the like are selectively used.

  Further, when authenticating the user of the terminal device 2 on the authentication device 4 side, the musical sound reproduction function of the terminal device 2 reproduces and outputs the musical sound (specific musical sound) indicated by the musical sound data previously stored in the storage unit 23. This is input to the authentication device 4 (h).

  At this time, if the parameter setting is changed as described above, an additional sound in which the changed content of the parameter can be specified is reproduced and output together with the specific musical sound whose parameter is changed according to the content. . In the present embodiment, the specific musical sound is reproduced and output after the additional sound.

  In this way, the authentication device 4 that has input the musical sound reproduced and output by the terminal device 2, if the additional sound is included in the musical sound, according to the change amount of the parameter specified from the additional sound, The parameters of both musical tones are matched by changing either or both parameters of the musical tones (target musical tones) indicated by the musical tone data previously stored in the storage unit 43 (i).

The authentication device 4 compares the specific musical sound with the target musical sound, and as a result, the user corresponding to the musical sound data indicating the target musical sound that matches the specific musical sound (including an approximation of a predetermined ratio or more) It authenticates that it is a user 2 (j).
(2) Procedure until Preparation for User Authentication Hereinafter, a procedure until preparation for user authentication is prepared between the terminal device 2 and the authentication device 4 will be described based on processing of each device shown in FIG.
(2-1) Operation Acceptance Processing by Terminal Device 2 First, the procedure of the operation acceptance processing executed by the control unit 23 of the terminal device 2 will be described. This operation reception process is performed every time an operation is received via the operation panel of the user interface 25.

  When this operation acceptance process is started, first, it is checked whether or not the accepted operation is a “user registration operation” (s110). The “user registration operation” is an operation for requesting the user registration to the management apparatus 6, and predetermined operation contents are assigned in advance.

  If it is determined in s110 that the “user registration operation” has been received (s110: YES), a registration request with identification information assigned to the user of the terminal device 2 is transmitted to the management device 6 (s120). In the present embodiment, the identification information is stored in advance in the EEPROM or the storage unit 23 of the control unit 23, but may be input by the user each time.

The management device 6 that has received this registration request transmits musical tone data associated with the identification information.
Thus, when the musical tone data is received from the management device 6 after the registration request is transmitted, the musical tone data is stored in the storage unit 23 as indicating the specific musical tone for authentication (s130), and a message to that effect is received. After being displayed on the monitor of the user interface 25 (s140), the operation acceptance process is terminated.

  When it is determined that the accepted operation is a “setting change operation” (s110: NO, s150: YES), the parameter of the musical sound to be reproduced and output is changed (s160), and then the operation acceptance process is performed. Ends. In s160, the above-described change information is updated to a change amount corresponding to the change content commanded by the setting change operation.

The “setting change operation” is an operation for instructing to change the parameter of the musical sound to be reproduced and output, and predetermined operation contents are assigned in advance.
If it is determined that the accepted operation is an operation other than the above (s110: NO, s150: NO), a process corresponding to the operation (other process) is performed (s170), and then this operation is performed. The acceptance process ends. Note that part of the processing performed here is authentication processing described later.
(2-2) User Registration Process by Management Device 6 Next, a user registration process procedure executed by the control unit 63 of the management device 6 will be described. This user registration process is performed every time a registration request is received from the terminal device 2.

When this user registration process is started, first, musical tone data corresponding to the identification information accompanying the registration request is selected from a plurality of musical tone data prepared in advance (s210).
Here, it is configured to randomly select from a plurality of musical sound data stored in advance in the storage unit 63 in accordance with the identification information, but from the identification information, the user attributes (for example, gender, age, affiliation) Etc.) can be identified, it is possible to select musical tone data indicating a musical tone that matches the attribute.

  Next, the identification information associated with the registration requirement and the musical sound data selected in s210 are registered in the database stored in the storage unit 63 (s220). Here, as shown in FIG. 4, in addition to the musical tone data (address) and identification information, a record in which the musical tone number indicated by the musical tone data, the initial value of the parameter of the musical tone, and the like are set is stored in the database. be registered.

  Next, the musical sound data selected in s210 is transmitted to the terminal device 2 that is the transmission source of the registration request (s230). This musical tone data is received by the terminal device 2 in s130 of the operation reception process.

Next, the musical sound data selected in s210 and the identification information accompanying the registration request are transmitted to the authentication device 4 (s240). Upon receiving the musical tone data and the identification information, the authentication device 4 stores the identification information and the musical tone data in association with each other in the storage unit 43 in the musical tone registration process started upon reception of the musical tone data and the identification information (s310). ).
(3) Procedure for Performing User Authentication Hereinafter, a procedure for performing user authentication between the terminal device 2 and the authentication device 4 will be described based on processing of each device shown in FIG.
(3-1) Authentication process by terminal device 2 First, the process procedure of the authentication process executed by the control unit 23 of the terminal device 2 will be described. This authentication process is performed every time an operation for starting user authentication is accepted via the operation panel of the user interface 25.

  When the authentication process is started, first, it is checked whether or not the parameter relating to the musical sound to be reproduced and output has been changed (s410). Here, the change information stored in the EEPROM of the control unit 21 is checked, and if this indicates a value different from the initial value 0, it is determined that the parameter has been changed.

  If it is determined in s410 that the parameter has been changed (s410: YES), the parameter change amount is read based on the change information stored in the EEPROM of the control unit 21 (s420). An additional sound that is a sound that can specify the parameter change amount indicated by the change information is generated (s430). Here, for example, sounds with different frequency components and combinations, or different times and times of output with specific components are generated as additional sounds according to the amount of parameter change.

Next, the additional sound generated in s430 is reproduced and output from the speaker 33 (s440). The additional sound reproduced and output in this way is input from the microphone 51 of the authentication device 4.
Next, in the operation reception process (s130), the musical tone data stored in the storage unit 23 as a specific musical tone for authentication is read (s450).

  Next, the specific musical sound indicated by the musical sound data read in s450 is reproduced and output from the speaker 33 (s460). At this time, if the change amount of the parameter is read in s420, the same parameter as that parameter is reproduced and output with the change amount changed.

The specific musical sound reproduced and output in this way is input from the microphone 51 of the authentication device 4, and after the authentication based on the specific musical sound is performed from the authentication device 4, the authentication result is transmitted.
After the specific musical sound is reproduced and output in s460, the process waits until the authentication result from the authentication device 4 is received (s470: NO). When the authentication result is received (s470: YES), the authentication result is The message is displayed on the monitor of the user interface 25 (s480), and the process to be authenticated ends.
(3-2) User Authentication Process of Authentication Device 4 Next, a process procedure of a user authentication process executed by the control unit 43 of the authentication device 4 will be described. This user authentication process is repeatedly executed after the authentication device 4 is activated.

  When the user authentication process is started, the process first waits until voice input at a predetermined level or higher is started from the microphone 51 (s510: NO). Thereafter, when voice input is started (s510: YES). ), Audio output through the speaker 53 is interrupted (s520). Here, the audio output is interrupted by not performing the output from the speaker 53 via the audio processing unit 49.

  Next, it is checked whether or not the voice started to be input in s510 is an additional sound (s530). Here, if the voice pattern in which the input is started matches the pattern defined as the additional sound (including an approximation of a predetermined ratio or more), it is determined that the voice is the additional sound.

  When it is determined in s530 that the sound is an additional sound (s530: YES), after the input is started, the voice input over the time length determined as the additional sound is acquired as the additional sound, and this additional sound is indicated. The additional sound data is stored in the storage unit 43 (s540).

  The “time length defined as additional sound” may be any value that can be specified as a predetermined constant value, and by adding a pattern indicating the end of the additional sound to this pattern, You may enable it to specify based on.

  After the additional sound data is stored in this way, or when it is determined in s530 that the sound is not an additional sound (s530: NO), thereafter, the sound input for the length of time determined as the specific musical sound is used as the specific musical sound. The acquired specific musical sound data indicating the specific musical sound is stored in the storage unit 43 (s550).

  Note that the “time length determined as the specific musical sound” may be any value that can be specified as a predetermined constant value as described above, and by adding a pattern indicating the end to the additional sound. The identification may be made based on this pattern.

  Next, the amount of parameter change is specified from the additional sound acquired in s540 (s560). Here, the amount of parameter change is specified by analyzing the additional sound indicated by the additional sound data stored in the storage unit 43. Note that this s560 does not perform any processing when it is determined in s530 that it is not an additional sound.

  Next, in at least one of the specific musical sound and the target musical sound indicated by the musical sound data stored in the storage unit 43 in the musical sound registration process in accordance with the parameter change amount specified from the additional sound in s560. The same parameters are changed to match the parameters of both musical tones (s570).

  Here, according to the change amount of the parameter indicated by the additional sound, the same parameter in one musical tone is changed in a direction in which the change amount is canceled. In the present embodiment, the parameters of the specific musical tone and the target musical tone are matched by changing only the parameters of the specific musical tone.

In s570, if it is determined in s530 that it is not an additional sound, no processing is performed.
Next, based on the specific musical sound and the target musical sound in which the parameters are matched, the specific musical sound and the target musical sound are compared (s580).

In this way, as a result of the comparison in s580, it is checked whether or not the target musical tone that matches the specific musical tone (including approximation of a predetermined ratio or more) exists in the target musical tone (s590).
If it is determined in s590 that there is a matching target musical sound (s590: YES), the user of the terminal device 2 has been correctly recognized as the user of the identification information corresponding to the musical sound data indicating the target musical sound. The authentication result to the effect is transmitted to the terminal device 2 (s610).

  On the other hand, when it is determined that there is no matching target musical sound (s590: NO), an authentication result indicating that the user cannot be correctly authenticated is transmitted to the terminal device 2 (s620). These authentication results are received by the terminal device 2 in s470 of the process to be authenticated. In the terminal device 2 that has received the authentication results, the results are displayed on the monitor.

Thus, after the authentication result is transmitted, the audio output interrupted in s520 is resumed (s630), the process returns to s510, and the subsequent processing is repeated. In this s630, the audio output is resumed by outputting from the speaker 53 via the audio processing unit 49.
(4) Operation and Effect With the authentication system 1 having such a configuration, when the additional sound is included in the musical sound reproduced and output from the terminal device 2 (s530 “YES” in FIG. 5), the authentication device 4 Prior to performing authentication with the specific musical sound in the reproduced musical sound, the parameters of the specific musical sound and the target musical sound are matched based on the additional sound (s560 to s570 in the figure).

  As described above, since the parameters of the specific musical tone and the target musical tone are matched and authentication is performed based on the comparison of the two musical tones (s580 in the same figure), even if the parameter in the specific musical tone is changed, the specific musical tone is identified. It becomes possible to correctly authenticate the user corresponding to the musical sound.

  Moreover, in the said embodiment, after matching with identification information and a specific musical tone is performed by the management apparatus 6 side based on the identification information transmitted from the terminal device 2 (s210-s220 of the same figure), this specific musical tone is shown. The musical sound data and the identification information are transmitted and stored in the authentication device 4 (s240 to s310 in the figure). As a result, the authentication device 4 can perform authentication based on the comparison between the specific musical sound and the target musical sound.

  Further, in the above embodiment, when the additional sound is input prior to the specific musical sound (s530 “YES” in FIG. 5), the authentication device 4 responds to the parameter change amount specified by the additional sound. Then, after matching the parameters of the specific musical sound and the target musical sound that are input thereafter (s560 to s570 in the figure), authentication based on the comparison of both musical sounds can be performed (s580 in the figure).

Moreover, in the said embodiment, according to the change amount of the parameter shown with an additional sound, the same parameter in a specific musical sound is changed in the direction where the change amount is canceled. Thereby, even in the case where there are a plurality of target musical sounds to be compared with the specific musical sounds, it is preferable because the processing load when matching the parameters of both musical sounds can be made constant regardless of the number of target musical sounds. It is.
(5) Modifications Embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and can take various forms as long as they belong to the technical scope of the present invention. Needless to say.

  For example, in the above-described embodiment, the case where the authentication device 4 and the management device 6 are configured as separate devices capable of communicating with each other is illustrated, but these devices may be configured as an integrated device.

  Moreover, in the said embodiment, although the terminal device 2 is comprised so that an additional sound may be reproduced | regenerated and output prior to a specific musical sound, the timing which reproduces | regenerates and outputs an additional sound is superimposed and reproduced with a specific musical sound, for example. Alternatively, the timing may be such that playback is output after the specific musical sound.

  Here, when the additional sound is superimposed on the specific musical sound and reproduced and output, for example, on the terminal device 2 side, after the additional sound is generated (s430), the additional sound is reproduced and output while being superimposed on the specific musical sound. The authentication apparatus 4 side interrupts the voice output (s520), and after confirming whether or not an additional tone is included in the input musical tone (s530), adds it from all the input musical tones. The additional sound and the specific musical sound may be obtained by separating the sound and the specific musical sound (s540, s550).

  In this case, when the additional sound is separated from the musical sound reproduced and output by the terminal device 2, the authentication device 4 has the remaining additional sound separated according to the change amount of the parameter specified by the additional sound. It is possible to perform authentication based on a comparison of both musical sounds after matching the parameters of the specific musical sound and the target musical sound, which are the components of.

  When the additional sound is reproduced and output after the specific musical sound, for example, the additional sound is reproduced and output after the specific musical sound on the terminal device 2 side (s410 to s440 after s450, s460), and the authentication device. On the fourth side, after the voice output is interrupted (s520), the specific musical sound is acquired (s550), and then the input confirmation of the additional sound is performed (s530).

  In this case, when an additional sound is input after the specific musical sound, the authentication device 4 determines the parameters of the specific musical sound and the target musical sound that are input in advance according to the change amount of the parameter specified by the additional musical sound. After matching, the authentication based on the comparison of both musical sounds can be performed.

Moreover, in the said embodiment, the authentication apparatus 4 is comprised so that the parameter of a specific musical sound and a target musical sound may be matched by changing a specific musical sound according to the change amount of the parameter specified by an additional sound. Yes. However, when the authentication device 4 matches the parameters of the specific tone and the target tone, the same parameter in one tone is set in a direction in which the change amount is canceled in accordance with the change amount of the parameter indicated by the additional tone. The parameter of the target musical sound may be changed, or the parameters of the specific musical sound and the target musical sound may be changed by a certain ratio.
(6) Correspondence with the Present Invention In the embodiment described above, the terminal device 2 is a musical sound reproducing device according to the present invention, s460 in FIG. 5 is a musical sound output means according to the present invention, and s440 in FIG. Additional sound output means, s160 in FIG. 3 is parameter changing means in the present invention, s120 in FIG. 3 is reproduction side transmission means in the present invention, and s130 in FIG. 3 is reproduction side storage means in the present invention.

  Further, s540 and s550 in FIG. 5 are tone input means in the present invention, s580 in FIG. 5 is a tone authentication means in the present invention, s570 in FIG. 5 is a parameter matching means in the present invention, and s310 in FIG. It is the authentication side memory | storage means in invention.

  S210 in FIG. 3 is a tone selection means in the present invention, and s230 in FIG. 3 is a management side transmission means in the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Authentication system, 2 ... Terminal device, 21 ... Control part, 23 ... Memory | storage part, 23 ... Control part, 25 ... User interface, 27 ... Communication part, 29 ... Voice processing part, 31 ... Microphone, 33 ... Speaker, 4 DESCRIPTION OF SYMBOLS ... Authentication apparatus 41 ... Control part 43 ... Memory | storage part 43 ... Control part 47 ... Communication part 49 ... Audio | voice processing part 51 ... Microphone 53 ... Speaker 6 ... Management apparatus 61 ... Control part 63 ... Storage unit, 63 ... control unit, 67 ... communication unit, 100 ... network.

Claims (5)

An authentication system comprising a music sound reproducing device capable of reproducing music and an authentication device for authenticating a user of the music sound reproducing device,
The musical sound reproducing device includes:
Musical tone output means for reproducing and outputting a specific musical tone (specific musical tone) indicated by the musical tone data based on the musical tone data stored in the reproduction-side storage unit of the musical tone reproducing device;
A parameter changing unit capable of changing a parameter relating to a musical tone when the musical tone output unit reproduces and outputs the specific musical tone in response to a user operation;
Additional sound output means for reproducing and outputting an additional sound, which is a sound that can specify the amount of change of the parameter changed by the parameter changing means, together with the specific musical sound that is reproduced and output by the musical sound output means,
The musical sound output means is configured to reproduce and output a specific musical sound according to the parameter changed by the parameter changing means,
The authentication device
A musical sound input means for inputting a musical sound reproduced and output from the musical sound reproducing device;
The specific musical sound in the musical sound input by the musical sound input means is compared with a plurality of different musical sounds (target musical sounds) each associated with the user, and is associated with the target musical sound that shows a similarity equal to or higher than a predetermined threshold value. A musical sound authenticating means for authenticating that the given user is a user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound;
When the additional sound is included in the musical sound input by the musical sound input means, the same parameter in at least one of the specific musical sound and the target musical sound is set in accordance with a change amount of the parameter specified by the additional sound. Parameter matching means for changing and matching parameters of both musical sounds,
When the additional sound is included in the musical sound input by the musical sound input means, the musical sound whose parameters are matched by the parameter matching means is compared, whereby authentication by the musical sound authentication means is performed. An authentication system characterized by being configured as described above. An authentication system comprising the musical sound reproduction device, the authentication device, and a management device,
The musical sound reproducing device includes:
Receiving side transmission means for receiving the user's operation and transmitting the identification information of the user to the management device;
After the identification information is transmitted by the reproduction-side transmission means, the reproduction-side storage that stores the musical sound data transmitted from the management apparatus that has received the identification information as the specific musical sound in the reproduction-side storage unit Means, and
The management device
A musical tone selection means for selecting a specific musical tone to be associated with the user identified by the identification information from a plurality of types of musical sounds when the identification information is received from the musical sound reproducing device;
A management-side transmission unit that transmits the identification information received from the musical tone reproduction device and the musical tone data indicating the specific musical tone selected by the musical tone selection unit based on the identification information to the authentication device. And
The authentication device
When the identification information and the musical sound data are received from the management device, an authentication-side storage unit that stores them in an authentication-side storage unit included in the authentication device in a state in which they are associated with each other,
The musical sound authenticating means compares a specific musical sound in the musical sound input by the musical sound input means with each musical sound (target musical sound) indicated by the musical sound data stored in the authenticating side storage unit, and has a predetermined threshold value. 2. The authentication for authenticating that the user associated with the target musical sound indicating the above similarity is a user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound is performed. Authentication system. In the musical sound reproducing device,
The additional sound output means is configured to reproduce and output the additional sound prior to reproduction output of the specific musical sound by the musical sound output means,
In the authentication device,
The parameter matching means, when the additional sound is input for the first time by the music sound input means, according to the change amount of the parameter specified by the additional sound, the specific input that is input after the additional sound The authentication system according to claim 1 or 2, wherein the parameters of both musical tones are matched by changing the same parameter in at least one of the musical tone and the target musical tone. In the authentication device,
The parameter matching means, when the additional sound is included in the musical sound input by the musical sound input means, changes the same parameter in the specific musical sound according to the amount of change of the parameter specified by the additional sound. The authentication system according to any one of claims 1 to 3, wherein the authentication system matches the parameter of the target musical sound. An authentication device that constitutes an authentication system together with a music sound reproducing device capable of reproducing music,
A musical tone output means for reproducing and outputting a specific musical tone (specific musical tone) indicated by the musical tone data from a speaker based on the musical tone data stored in the playback-side storage unit of the musical tone reproducing device; In response to the above operation, the parameter changing means is capable of changing parameters relating to the musical sound when the musical sound output means reproduces and outputs the specific musical sound, and the specific musical sound reproduced and output by the musical sound output means. Additional sound output means for reproducing and outputting an additional sound, which is a sound capable of specifying the parameter change amount, from a speaker, and a specific musical sound is reproduced and output according to the parameter changed by the parameter changing means. In the case where
A musical sound input means for inputting a musical sound reproduced and output from the musical sound reproducing device;
The specific musical sound in the musical sound input by the musical sound input means is compared with a plurality of different musical sounds (target musical sounds) each associated with the user, and is associated with the target musical sound that shows a similarity equal to or higher than a predetermined threshold value. A musical sound authenticating means for authenticating that the given user is a user of the musical sound reproducing apparatus that reproduces and outputs the specific musical sound;
When the additional sound is included in the musical sound input by the musical sound input means, the same parameter in at least one of the specific musical sound and the target musical sound is set in accordance with a change amount of the parameter specified by the additional sound. Parameter matching means for changing and matching parameters of both musical sounds,
When the additional sound is included in the musical sound input by the musical sound input means, the musical sound whose parameters are matched by the parameter matching means is compared with each other, whereby the authentication by the musical sound authentication means is performed. It is comprised so that the authentication apparatus characterized by the above-mentioned.

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