JPH11284699A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily confirm contents in the case of using a telephone service or calling by applying recognition processing to a voice obtained via a telephone line at a voice recognition processing section and displaying the recognition result on a display section. SOLUTION: A line processing section 11 recognizes a voice signal sent from an exchange station 1 and processes the recognized result as character data. The recognition processing by a voice recognition section 15 is executed based on the control by a control section 12, and prescribed voice recognition processing such as voice spectrum analysis is conducted, then a pitch is extracted and corrected and a motion of a spectrum along a time base is compared with a model. Character data outputted as the result of recognition are stored in a memory 16 connecting with the control section 12 and displayed on a display section 17. The recognition processing by the voice recognition section 15 and the display processing in the display section 17 are executed under the control of the control section 12 when a mode for corresponding processing is set by the operation of an operation section 20 of the telephone set 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone such as a telephone for a wired telephone line and a wireless telephone for a wireless telephone line.

[0002]

2. Description of the Related Art Conventionally, it has been widely practiced to listen to various kinds of guidance information called a telephone service using a general subscriber telephone or a radio telephone. In this telephone service, a telephone is called from a telephone to a telephone number prepared for guidance, and the other party connected by the call hears a voice guiding the corresponding item reproduced from a tape or the like via the telephone. It was done. Examples of such telephone services include, for example, weather forecasts and vacant seat guidance for aircraft.

[0003] By using such a telephone service, necessary information can be obtained at any time with a telephone, which is convenient.

[0004]

However, since the above-mentioned telephone service is a service for providing guidance by voice, the user needs to listen carefully to the voice output from the receiver or the like, and this is a very efficient guidance. I couldn't say. In particular, in the case of a service having a large amount of information by voice for a relatively long time, in order to reliably obtain the required information, it was necessary to continue listening to the voice for a long time, and a great deal of attention was required. . If you missed the information you needed, you had to start over by calling back.

For example, when a user calls a weather forecast telephone service in order to know the weather forecast of tomorrow in the area where the user is located (here, area X), the telephone service first calls tonight. After guiding the weather forecast of each area by voice, and then in the order of guiding the weather forecast of each area tomorrow by voice, after hearing the weather forecast of all the areas tonight and then tomorrow's X It was necessary to continue listening to the guidance voice until the order for guiding the local weather forecast was completed. If you attach a recording device to your phone and record the guidance voice, you will not miss any information you want to know, but after you record it, you can play it back and get to the information you need.
It takes time and effort.

[0006] Even during a normal telephone call other than the telephone service, when the voice of the other party cannot be heard, it is necessary to have the other party speak the same thing again.

[0007] In view of the above, it is an object of the present invention to make it easy to confirm the contents when using a telephone service or during a call.

[0008]

According to the present invention, there is provided a speech recognition processing section for recognizing speech obtained via a telephone line, and displaying a recognition result of the speech recognition processing section. And a display unit.

With this configuration, the voice transmitted from the other party is displayed in characters or the like.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to FIGS.

FIG. 1 is a diagram showing the overall configuration of a telephone according to the present embodiment. A telephone 10 according to the present embodiment is connected to an exchange 1 via a predetermined telephone line. It is connected to a telephone so that a telephone call can be made between the other party's telephone and the telephone 10. In the example shown in FIG.
Is connected to a telephone service station 2 via an exchange 1.

The telephone 10 has a line processing unit 11, which performs a process of transmitting an audio signal to the telephone line and a process of receiving an audio signal from the telephone line. The processing in the line processing unit 11 is executed under the control of a control unit 12 composed of a microcomputer. The line processing unit 11 is connected to a speaker 13 and a microphone 14 constituting a handset. By using the speaker 13 and the microphone 14, a telephone call can be made in the same manner as a conventional telephone.

The telephone 10 of the present embodiment has a voice recognition unit 1
The line processing unit 11 recognizes the voice of the voice signal transmitted from the exchange 1 and performs a process of outputting the recognition result as character data. The recognition process in the voice recognition unit 15 is executed based on the control of the control unit 12, and performs a conventionally known voice recognition process. For example, a method using a hidden Markov model for analyzing the spectrum of a voice, extracting a pitch, making a correction, and comparing the movement of the spectrum along the time axis with the model is known as voice recognition processing. The character data output by the voice recognition unit 15 as a recognition result is stored in a memory 16 connected to the control unit 12. As the memory 16, for example, a nonvolatile semiconductor memory is used. As the data stored in the memory 16, data such as telephone numbers, which are so-called telephone directory data, may be stored in addition to the character data subjected to voice recognition.

The voice-recognized character data stored in the memory 16 can be read out under the control of the control unit 12 and displayed on the display unit 17 of the telephone 10. As the display unit 17, for example, a display means such as a liquid crystal display panel is used, and is configured to be able to display characters in a predetermined number of lines. The display on the display unit 17 is necessary as a telephone such as a telephone number of a call destination when a call is made, a registered caller name, and a telephone number of a caller when a call is received, in addition to the character display of voice recognition. Various displays are performed.

Recognition processing in the voice recognition unit 15 and the display unit 1
The display processing of the recognized characters in 7 is executed under the control of the control unit 12 when the mode for performing the corresponding processing is set by operating the operation unit 20 of the telephone 10. The operation unit 20 includes various mode setting keys included in the telephone, in addition to dial keys including 1, 2, 9, 9, *, and. For example, FIG. 2 shows an example of the key arrangement of the telephone 10. As shown in FIG. 2, a storage key 21 for instructing voice recognition and storing a recognition result, and a display key 22 for instructing display of the stored recognition result. And an erase key 23 for instructing to erase the recognition result stored in the memory, an up key 24 and a down key 25 for scrolling the character display on the display unit, and the like, are arranged as keys related to voice recognition. .

Next, a process based on the control of the control unit 12 when the telephone 10 of the present embodiment recognizes and displays a call voice will be described with reference to a flowchart of FIG. First, the control unit 12 determines whether or not an operation for executing a voice recognition process has been performed during a call (step 101). For example, it is determined whether the storage key 21 shown in FIG. 2 has been pressed. When this operation is performed, the voice recognition unit 15 executes voice recognition processing based on a voice signal transmitted from the other party, and supplies the recognition result to the control unit 12 as character data (step 102). . Then, the character data as the recognition result is stored in the memory 16 (step 103). Then, the character data stored in the memory 16 is supplied to the display unit 17 under the control of the control unit 12, and the characters are displayed on the display unit 17 (step 104).

The display state on the display unit 17 shown in FIG. 2 shows an example in which a call is made to a telephone number for which a telephone service of a weather forecast is provided, the voice of the weather forecast is recognized, and characters are displayed. ing. When the displayed character string exceeds the number of characters that can be displayed on the display unit 17, for example, the displayed lines may be automatically scrolled in order. Alternatively, the displayed screen may be switched to the next screen or the previous screen by operating the up key 24 or the down key 25 shown in FIG. When the displayed character string is to be deleted, the character string being displayed is deleted from the screen of the display unit 17 under the control of the control unit 12 when the delete key 23 or the like is operated in FIG. With memory 1
The data of the corresponding character string stored in No. 6 is deleted.

According to the telephone constructed as described above, it is possible to recognize the voice of the voice signal transmitted from the other party during a call and display the recognized character string, thereby improving the usability of the telephone. . That is, for example, when using the telephone service, the guided content is displayed in characters, so that the guided content can be confirmed without continuing to listen to voice using a handset or the like.
In this case, the time required to confirm the information displayed in characters is shorter than the time required to confirm the information spoken by voice, and the time required for collecting the guide information is shortened.
No more taking notes. Furthermore, it is not necessary to listen to the voice carefully, and the burden of collecting information by a telephone service or the like can be reduced. Note that, in the above-described example, the voice by the telephone service such as the weather forecast is recognized. However, the words spoken by the other party during a normal call may be recognized and displayed. By doing so, for example, words that are temporarily missed during a call can be confirmed from the display of the recognition result.

The display unit 17 has a function of detecting a touch on the surface of the display screen, and the user can touch the surface of the display screen to perform the key operation described above. Similar processing may be performed.

Further, in the above-described example, the character string that has been subjected to speech recognition is a character string that includes kanji characters. It may be displayed in a single form of character string such as katakana or alphabet.

In the above-described embodiment, the character data as a result of the speech recognition is temporarily stored in the memory, and the stored data is displayed on the display unit. May be directly supplied from the voice recognition unit to the display unit and displayed without being stored.

Further, in the above-described embodiment, an example is described in which the present invention is applied to a telephone connected to a wired telephone line. However, it is needless to say that the present invention can also be applied to a so-called wireless telephone (cellular telephone) for a wireless telephone line. FIG. 4 shows an example in which the present invention is applied to a wireless telephone. As a wireless telephone 50, a circuit for performing voice recognition processing is provided therein, and a character string is also recognized as a recognition result in the voice recognition processing circuit. Is displayed on the display unit 51. In this case, keys 52, 53, and 54 for performing operations required for the voice recognition process are prepared in the wireless telephone 50. Alternatively, a rotation type input unit 55 may be provided, and an operation necessary for the voice recognition processing may be performed by a rotation operation of the input unit 55 or the like. FIG.
In the example, the voice recognition of the telephone service for guiding the vacant seats of the aircraft is performed and displayed.

[0023]

According to the first aspect of the present invention, since the voice transmitted from the other party is displayed as characters, for example, when using the telephone service, the contents to be guided can be easily confirmed by characters. In addition to shortening the time for collecting the guide information, the trouble of taking notes is eliminated, and the need to listen carefully to the voice is eliminated, so that information can be easily obtained through a telephone service or the like. Also, the words spoken by the other party during a normal call can be confirmed from the display.

According to the invention described in claim 2, in the invention described in claim 1, the result of voice recognition is stored, so that information obtained by a telephone service or the like can be easily confirmed later. .

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an example of an overall configuration according to an embodiment of the present invention.

FIG. 2 is a plan view showing an example of a telephone according to one embodiment of the present invention.

FIG. 3 is a flowchart illustrating an example of a voice display process according to an embodiment of the present invention.

FIG. 4 is a plan view showing an example of a telephone according to another embodiment of the present invention.

[Explanation of symbols]

10 telephone, 11 line processing unit, 12 control unit, 15
... Speech recognition unit, 16 ... Memory, 17 ... Display unit, 20 ... Operation unit, 50 ... Wireless telephone

Claims (2)

[Claims] A communication processing unit for processing a signal obtained via a telephone line; a voice recognition processing unit for performing a voice recognition process based on a voice signal obtained by the communication processing unit; A display unit for displaying information of the recognition result to be output. 2. The telephone according to claim 1, further comprising: a storage unit configured to store information of a recognition result output by the voice recognition processing unit, wherein the display unit displays information of the recognition result stored in the storage unit. Phone to do.