JPH05122326A - Signal identification device for communication equipment - Google Patents

Abstract

PURPOSE:To obtain the effect of allowing a reception side to identify a sender side with a simple operation with a safer and easier method than a conventional method in the communication equipment such as a telephone set. CONSTITUTION:The communication equipment such as a telephone set is provided with a timer circuit 8 measuring a time interval of a dial number depending on a frequency of a dial tone by number entry, a 1st storage device 6 storing tentatively a time interval pattern and a nonvolatile 2nd storage device 7 storing characteristic pattern data extracted from the time interval pattern by a characteristic pattern extract means. A collation means collates the characteristic pattern data with the time interval pattern of an inputted dial station number and when the result of the collation indicates the coincidence, a ciphering tone control means sends a ciphering tone signal to an opposite communication equipment such as a telephone set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal identifying device for a communication device such as a telephone, which enables a receiving side to identify a transmitting side.

[0002]

2. Description of the Related Art A communication device such as a telephone or a facsimile using a public line is a useful device because the necessary information can be obtained immediately even from a remote place, but on the other hand, the intention of the receiving side is involved. Receive calls from an unspecified number of senders at any time. Therefore, in the facsimile, there is also a problem that the receiving paper is wastefully consumed by the advertisement by the direct mail or the like.

However, the problem more than the facsimile is in the case of a telephone, for example, a problem that a receiver such as a prank call, a sales call, or a solicitation call in the middle of the night takes unnecessary time for a call and a response. is there.

As described above, the communication device has a convenient and useful aspect, but also has an inconvenient aspect such as a nuisance call. Therefore, it is possible for the receiver of the communication device to distinguish between the reception of the necessary information and the reception of the information that is not necessary, and the reception device can be selected by the receiver as either direct reception or indirect reception according to the reception mode of the answering machine. It was requested to.

Conventionally, in response to such a demand, in a dial tone type telephone set or the like, as an example, a four-digit personal identification number is adopted, and after the input of the other party's station number, a certain call is being made. A method of dialing in the four-digit personal identification number within a short time is adopted.

[0006] In this type of telephone set, the password comparison circuit is provided inside the telephone set of the other party, and when the personal identification number registered in advance on the receiving side matches, the other party sends a message from a specific transmitting side. This is a type of telephone that can identify that it is a telephone.

[0007]

However, in this type of telephone, if the 4-digit personal identification number is an easy-to-remember number, there is a possibility that some kind of illegal use will be performed, and conversely, it will be difficult. Then, there is a drawback that the password may be forgotten. In addition, the user has to input an additional secret code within a limited short time following the input operation of the station number, which causes a problem that the operation becomes complicated, which is a problem.

[0008]

The present invention eliminates the conventional operation of adding a personal identification number in order to solve the above-mentioned problems of the prior art. That is, according to the present invention, when making a call to the other party, the temporal rhythm of pushing the push button or the like is ergonomically different from the continuous number sequence such as the other party's telephone number (hereinafter, the station number). Focusing on the fact that each individual has a unique rhythm, the unique rhythm of each individual is used as an identification signal.

Specifically, in a communication device such as a telephone, a timer circuit for measuring the time interval of dial numbers determined by the frequency of dial pulses or dial tones by number input and a time interval pattern between the dial numbers are temporarily stored. A non-volatile second memory for storing characteristic pattern data extracted by the characteristic pattern extraction means from the time interval pattern between dial numbers stored in the first memory circuit. And a plurality of registered characteristic pattern data and the inputted time interval pattern of the dial station number are collated by collating means, and when the collation results are coincident, the encrypted tone control means is used by the telephone device or the like. And a signal identification device for a communication device configured to send an encryption tone signal to the communication device. .

To this end, a mode is provided in which a registration is made for the other party's station number to be encrypted, a learning operation is performed in advance, feature extraction is carried out from the rhythm for each individual station number possessed by the individual, and this is stored. Then, a personal identification number is input to store the encryption tone corresponding to the area code.

After the learning work, when the user uses the station number registered by the telephone, the feature for the rhythm of the station number input is extracted. The feature of the rhythm input by the station number is collated with the feature extraction data registered in advance by the learning work. If these characteristics match as a result of the collation, the encryption tone control means sends an encryption tone corresponding to the station number to the telephone set of the receiving side, and the receiving side can identify the transmitting side by the encryption tone. ..

The identification target of the transmission side can be used, for example, to identify a specific business partner, one from his / her family, and a close friend.

[00013]

According to the present invention, first of all, it is not necessary to remember the personal identification number, so that the personal identification number can be forgotten as in the conventional case.
It also has the effect that unauthorized use by others is unlikely to occur.

Secondly, unlike the prior art, there is no need to input a personal identification number in addition to the other party's station number within a limited time during the ringing tone following the input of the station number. Since there is no need to input, there is an effect that the operation becomes easy.

Thirdly, since the input of the station number can be derived from the time rhythm peculiar to each individual, there is an effect that the transmitting side can identify the receiving side and the transmitting side by a natural operation of the station number.

[0016]

Embodiments (1) Structure The structure of an embodiment of the present invention will be described below with reference to FIG. In the figure, the network interface 1 is
This is an interface that matches the telephone network. The transmitter / receiver circuit 2 separates a transmitter signal and a receiver signal.
The handset 3 converts an electric signal into a voice and vice versa.

The dial tone generation circuit 4 generates a tone frequency signal corresponding to the dial number. The push button key 5 is used to select and input the other party's station number, and the first storage device 6 temporarily stores the input time interval pattern.

The second storage device 7 comprises a non-volatile memory, and is a memory for registering the characteristic pattern data previously extracted from the time interval pattern. The timer circuit 8 measures the time interval of the input station number. The central processing unit CPU executes processing such as control and verification of the telephone circuit including the network interface 1 to the timer circuit 8 in accordance with the instruction of the ROM (not shown).

In the present embodiment, when the time interval pattern of the input station number and the characteristic pattern data registered in the second storage device 7 match, an encryption tone signal is generated by the encryption tone control means. It is configured to send out and identify the sending side by the sent encrypted tone signal.

(2) Station number registration processing The station number registration processing will be described with reference to the flowchart of FIG. In the figure, Sn (n = 1, 2,
.. indicates the step of each processing.

Registration key 9 on the same panel as S1 push button key 5
Press to enter the station number registration processing mode. Enter the station number to be registered with the S2 push button key 5. In this case, the station number is entered naturally as it is normally entered.

The timer circuit 8 is started each time a number is pressed with the S3 push button key 5, the time interval from the previously pressed number is measured and stored in the first memory circuit 6. The S4 number is input a plurality of times in order to remove the factor of variation, and averaging is performed to extract the characteristic pattern data. The processing step of S4 is a feature pattern extraction means as a program function realizing means. S5 The characteristic pattern data of the time interval of the station number to be registered is registered in the second storage device 7.

S6 When the registration of the characteristic pattern data in the second storage device 7 is completed, a message is displayed (not shown), and the push button key 5 is used again for registration of the encryption tone, which is the target. Enter the 4-digit password for the station number from the push button key 5.

When the learning work in the station number registration processing mode is completed by the above operation, for example, the station number is 03-3277.
When the encryption tone is designated by the personal identification number 1234 in -9111, the station number, the characteristic pattern data of the time interval pattern and the personal identification number 1234 are stored in the second storage device 7, as shown in FIG.

(3) Control procedure after station number registration processing The control procedure after station number registration processing will be described with reference to the flowchart of FIG. In the figure, Sn (n
= 11, 12, 13, ...) indicates the step of each control.

S11, S12 When a number is entered from the push button keys, the timer circuit 8 starts. S13 The time interval between each number is measured, and when all station numbers are input, they are temporarily stored in the first storage circuit 6.

S14, S15 It is checked whether the input station number is in the second storage circuit 7, and if the input station number is in the second storage circuit 7, the process proceeds to S16, and if not. Ends this flow and performs normal call processing. The control steps of S14 and S15 are the collating means as the function realizing means by the program.

S16, S17 The time interval between the numbers entered is compared with the characteristic pattern data between the times of the station number registered in the second memory circuit 7.

This collation will be described with reference to Table 1 below.

[Table 1] In the example shown in Table 1, matching or non-matching is performed by the linear matching method according to the distances described later between the registered averaged time interval data and the input time interval pattern.

In Table 1, the (a) column shows the station number registered in the second storage device 7. The column (b) is characteristic pattern data as an averaged value of the time intervals between the numbers of the station number registered in the second storage circuit 7.
The column (c) is the time interval between the numbers of the station number input this time and is temporarily stored in the first storage circuit 6.

In the column (d), the respective station number input time ratios (36/36), which are the ratios of the total time of the station number input in the columns (b) and (c), to the respective values in the column (c) input this time. It is the value corrected and averaged in 57). The column (e) is a difference (distance) between the characteristic pattern data in the column (b) and the corrected and averaged values in the column (d), which is an evaluation value for collation. The sum of these evaluation values is used as the total evaluation value (sum of distances).

In this embodiment, a comprehensive evaluation value of 1 or less is regarded as a match. In the example of Table 1, since the total distance is 1, it is determined that they match. As a result of the collation, if they match, the process proceeds to the next S18, and if not, the normal call processing is performed.

As a result of the S18 collation, if they match, an encryption tone signal registered with a personal identification number is generated. The control step of S18 is an encryption tone control means as a program function realizing means.

In the above embodiment, the central operation control unit C is used to compare the time interval pattern of the station number with the characteristic pattern data.
Although it is realized by software using PU, it may be realized by hardware logic instead.

Further, the case where the matching algorithm is performed by the linear pattern matching method as described above has been explained. Instead of this, DP (dynamic programming) capable of preventing the influence of input fluctuation and further enhancing the recognition ability. )
It is also possible to use a matching method, that is, a non-linear matching method or the like in which the two patterns are matched so as to achieve the best matching, instead of making a one-to-one correspondence when calculating the distance between the standard pattern and the unknown pattern.

[0036]

As described above, according to the present invention, firstly, since it is not necessary to remember the personal identification number, it is possible to obtain the effect that it is unlikely that the personal identification number is forgotten and illegal use by others is unlikely to occur. ..

Second, unlike the conventional case, it is not necessary to input a personal identification number in addition to the other party's station number within a limited time during the ringing tone following the station number input, so that there is no error due to erroneous operation, and only the station number is available. Since it is only necessary to input, there is an effect that the operation is easy.

Thirdly, since the input of the station number can be derived from the time rhythm peculiar to each individual, the effect that the transmitting side can identify the receiving side and the transmitting side can be obtained by a natural operation of the station number.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a telephone control circuit.

FIG. 2 is a diagram showing an example of a registration number registered in a second storage device, characteristic pattern data of a time interval, and a personal identification number designating an encryption tone.

FIG. 3 is a flowchart showing a procedure for registering a station number.

FIG. 4 is a flowchart showing a control procedure after a station number registration process.

[Explanation of symbols]

 4 dial tone generating circuit 6 first memory device 7 second memory device 8 timer circuit S4 characteristic pattern extracting means S14, S15 collating means S18 cipher tone controlling means

Claims (1)

[Claims] 1. In a communication device such as a telephone, a timer circuit for measuring the time interval of dial numbers determined by the frequency of dial pulses or dial tones by number input, and a time interval pattern for temporarily storing the time interval pattern between the dial numbers. 1 storage device, and a non-volatile second storage device for storing the characteristic pattern data extracted by the characteristic pattern extraction means from the time interval pattern between dial numbers stored in the first storage device. Then, the registered plurality of characteristic pattern data and the time interval pattern of the input dial station number are collated by collating means,
A signal identifying device for a communication device, wherein the encryption tone control means is configured to send an encryption tone signal to a communication device such as the other party's telephone when the results of the matching match.