TWI440017B - Voice recognition function activation systems and methods, and machine readable medium and computer program products thereof - Google Patents

Description

Voice recognition function starting system and method, and machine readable media and computer Program product

The present invention relates to a voice recognition function activation system and method, and more particularly to a system and method for determining whether to activate a voice recognition function according to the variability of sound.

In recent years, electronic devices, such as computers and portable devices, have become more sophisticated and more functional. Due to the convenience of these devices and applications, these devices have gradually become one of the necessities of life.

In order to provide a more convenient input and operation mode, some electronic devices can provide a voice recognition system. The user can complete the input and operation of the electronic device by using voice. In addition, when the user is in an environment that is not suitable for manual input and operation, such as when driving, the voice recognition system also provides a more convenient and safe input and operation mode for the user. Although voice can be input and operated with electronic devices and/or automotive systems. However, how to activate the speech recognition system becomes an important key for designers.

Since the environment is full of various sounds, if the speech recognition system continuously recognizes the sound, many misidentifications are often generated. Therefore, an extra button is usually designed to activate the speech recognition system. Since the user has to manually press this button to activate the speech recognition system, it is inconvenient for the user, and in special circumstances, such as driving, this behavior is insecure.

In order to overcome the aforementioned problems, a conventional technique is developed to initiate speech recognition. Knowledge system. In this prior art, the system continuously detects whether a keyword is included in the sound. When a keyword is detected, the speech recognition system is activated for complete speech recognition. In this prior art, the user can activate the speech recognition system without having to manually press any button. However, since the system is still continuously detecting whether the sound contains keywords. If the sound source is not simple or noisy, it may be very surprising to form a wrong identification. Therefore, the technology of using a keyword to activate a speech recognition system is rarely seen on a product.

In view of this, the present invention provides a speech recognition function activation system and method.

A voice recognition function starting system according to an embodiment of the present invention includes a sounding unit and a processing module. The processing module obtains a first sound of one of the first periods detected by the sounding unit, and calculates a first variability of the first sound in the first period. The processing module determines whether the first variability is less than a first set value. When the first variability is less than the first set value, the processing module obtains a second sound of one of the second periods detected by the sounding unit, and determines whether a keyword is included in the second sound. When the keyword is included in the second sound, the processing module activates a voice recognition function. When the voice recognition function is activated, the sounding unit detects that each of the third sounds will be detected.

A method for starting a voice recognition function according to an embodiment of the present invention. First, a first sound of one of the first periods is obtained, and a first variability of the first sound in the first period is calculated. Determining whether the first variability is less than one A set value. When the first variability is less than the first set value, the second sound of one of the second periods is obtained. It is determined whether a keyword is included in the second sound. When the keyword is included in the second sound, a voice recognition function is activated. When the speech recognition function is activated, each of the third sounds will be detected.

The above method of the present invention can exist in a coded manner. When the code is loaded and executed by the machine, the machine becomes the means for practicing the invention.

The above described objects, features, and advantages of the invention will be apparent from the description and appended claims appended claims

Figure 1 shows a speech recognition function activation system in accordance with an embodiment of the present invention.

The voice recognition function activation system 100 can be an electronic device such as a computer system, an automobile system, and a portable device such as a multimedia player, a personal digital assistant, a global satellite positioning device, a touch mobile phone, a smart phone, or a mobile phone. Such as hand-held devices. The voice recognition function activation system 100 includes a sound collection unit 110, a display unit 120, and a processing module 130. The radio unit 110 can be a microphone for receiving sound in the environment. The display unit 120 can be a screen or a light to display a keyword detection icon. The processing module 130 performs the voice recognition function starting method of the present case according to the sound received by the sound receiving unit 110, the details of which will be described later.

FIG. 2 shows a method for starting a voice recognition function according to an embodiment of the present invention.

In step S202, the sound of a period is received by the sound pickup unit 110, and as in step S204, the variability of the sound during the period is calculated. It is worth noting that the method of calculating the coefficient of variability is a familiar technique and will not be described here. In step S206, it is determined whether the variability of the sound during this period is less than a first set value and maintained for a predetermined time. It is noted that the first set value and the set time can be flexibly designed according to different needs. When the variability of the sound during this period is not less than the first set value or continues for a predetermined time (NO in step S206), the flow returns to step S202. When the variability of the sound during this period is less than the first set value and continues for a predetermined time (YES in step S206), in step S208, a keyword detection icon is displayed through the display unit 120. The display of the keyword detection icon can prompt the user to enter a keyword. It should be noted that, in step S206, it is determined whether the variability is less than the first set value, and the predetermined time is used to avoid instantaneous sound changes and/or misjudgments caused by different sound sources. However, in some embodiments, step S206 may also only determine whether the variability is less than the first set value.

In step S210, the sound of another period is continuously received by the sound pickup unit 110, and in step S212, the degree of variability of the sound during the period is calculated. In step S214, it is determined whether the variability of the sound during this period is greater than a second set value. When the variability of the sound during this period is not greater than the second set value (NO in step S214), the flow returns to step S210. When the variability of the sound during this period is greater than the second set value (YES in step S214), in step S216, it is determined whether or not a predetermined keyword is included in the sound. Similarly, in steps S212 and S214, it is calculated and determined whether the variability of the sound during this period is greater than the second set value to avoid an instantaneous sound change and/or a misjudgment caused by a different sound source. Of course However, in some embodiments, steps S212 and S214 may be omitted, and the determination of step S216 is directly performed. If the default keyword is not included in the voice (NO in step S216), in step S218, the display of the corresponding keyword detection icon in the display unit 120 is canceled, and the flow returns to step S202. If the default keyword is included in the voice (YES in step S216), in step S220, a voice recognition function is activated. Note that when the speech recognition function is activated, each text in the received sound will be detected.

Therefore, the voice recognition function starting system and method of the present invention can automatically activate the voice recognition function according to the variability of the sound in the environment. When the variability of the sound is less than the set value during the period, the keyword detection is started, and the voice recognition function is automatically started after the keyword is detected, thereby starting the voice recognition function under the consideration of convenience and security.

The method of the invention, or a particular type or portion thereof, may exist in the form of a code. The code may be included in a physical medium such as a floppy disk, a CD, a hard disk, or any other machine readable (such as computer readable) storage medium, or is not limited to an external computer program product, wherein When the code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The code can also be transmitted via some transmission medium, such as a wire or cable, fiber optics, or any transmission type, where the machine becomes part of the program when it is received, loaded, and executed by a machine, such as a computer. Invented device. When implemented in a general purpose processing unit, the code combination processing unit provides a unique means of operation similar to application specific logic.

Although the present invention has been disclosed above in the preferred embodiment, it is not intended to be used The scope of the present invention is defined by the scope of the appended claims, and the scope of the invention is defined by the scope of the appended claims.

100‧‧‧Voice recognition function start system

110‧‧‧ Radio unit

120‧‧‧Display unit

130‧‧‧Processing module

S202, S204, ..., S220‧‧ steps

Figure 1 is a schematic diagram showing a voice recognition function activation system in accordance with an embodiment of the present invention.

2 is a flow chart showing a method for starting a voice recognition function according to an embodiment of the present invention.

S202, S204, ..., S220‧‧ steps

Claims (12)

A voice recognition function starting system, comprising: a sound receiving unit; and a processing module, wherein the sounding unit detects one of the first sounds of the first period, and calculates one of the first sounds in the first period a variability, and determining whether the first variability is less than a first set value, and when the first variability is less than the first set value, obtaining the second sound of one of the second periods detected by the sounding unit And determining whether the second sound includes a keyword, and when the second sound includes the keyword, starting a voice recognition function, wherein when the voice recognition function is activated, the sounding unit detects one of the keys Each of the third sounds will be detected. The voice recognition function activation system of claim 1, wherein the processing module further determines whether the first variability is less than the first set value for a predetermined time, and when the first variability is less than the first setting When the value is the predetermined time, the second sound is obtained. The voice recognition function activation system of claim 1, further comprising a display unit configured to display a keyword detection icon when the first variability is less than the first set value. The voice recognition function activation system of claim 3, wherein the display unit cancels the display of the keyword detection icon when the keyword is not included in the second sound. The voice recognition function starting system of claim 1, wherein the processing module further calculates a second variability of the second sound, And determining whether the second variability is greater than a second set value, and when the second variability is greater than the second set value, determining whether the keyword is included in the second sound. A voice recognition function starting method includes the following steps: obtaining a first sound of a first period; calculating a first variability of the first sound in the first period; determining whether the first variability is less than a first a set value; when the first variability is less than the first set value, obtaining a second sound of a second period; determining whether the second sound includes a keyword; and when the second sound includes the key When the word is activated, a voice recognition function is activated, wherein when the voice recognition function is activated, each of the third voices will be detected. The method for starting a voice recognition function according to claim 6, further comprising the steps of: determining whether the first variability is less than the first set value for a predetermined time; and when the first variability is less than the first setting When the value is the predetermined time, the second sound is obtained. The method for starting a voice recognition function according to claim 6 further includes displaying a keyword detection icon when the first variability is less than the first set value. The voice recognition function initiator as described in item 8 of the patent application scope The method further includes canceling the display of the keyword detection icon when the keyword is not included in the second sound. The method for starting a voice recognition function according to claim 6, further comprising the steps of: calculating a second variability of the second sound; determining whether the second variability is greater than a second set value; and when When the second variability is greater than the second set value, it is determined whether the keyword is included in the second sound. A machine readable medium for storing a code for causing a device to perform a voice recognition function activation method, the method comprising the steps of: obtaining a first sound of a first period; calculating the first period of time a first variability of the first sound; determining whether the first variability is less than a first set value; and when the first variability is less than the first set value, obtaining a second sound of a second period; determining Whether a keyword is included in the second sound; and when the keyword is included in the second sound, a voice recognition function is activated, wherein when the voice recognition function is activated, each of the third voices is to be Detection. A computer program product for loading by a machine and executing a voice recognition function starting method, comprising: a first code for obtaining a first sound of a first period; a second code for calculating a first variability of the first sound in the first period; a third code for determining whether the first variability is less than a first set value; a code for obtaining a second sound of a second period when the first variability is less than the first set value; a fifth code for determining whether a keyword is included in the second sound; And a sixth code for initiating a voice recognition function when the keyword is included in the second voice, wherein each voice of the third voice is detected when the voice recognition function is activated.