JP2007036890A - Device, method and program for inputting voice, and wireless communication equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the head of data of voice input by a user from being omitted since it is not transmitted. <P>SOLUTION: A device for inputting voice for a portable apparatus having a wireless component 200 transmitting the input voice and operating a battery as a power source, includes a voice data accumulation device 400 which stores the input voice temporarily, a silent state detection part 201 which detects the presence/absence of silence in voice from a microphone 300 to the wireless component 200, a sleeping state transition part 202 which transits the wireless component to sleep when silence is detected, a voice data compression/output part 403 which compresses voice for a transmission time to the voice stored temporarily and outputs the voice to the wireless component, a voice input detection part 401 which detects the voice from the microphone and outputs compressed voice from the voice data compression/output part after the transmission time passes after detecting input of the voice to the wireless component, and a power-feeding state transition part 402 which feeds power to the wireless component of the sleep in the case of detecting the voice from the microphone. After the compressed voice is output to the wireless component, the device outputs the voice directly to the wireless component. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wireless communication apparatus that uses a battery as a power source to reduce power consumption. In particular, the present invention relates to a voice input device, a method, a program, and a wireless communication device that prevent an input voice from being lost in response to a voice input in a sleep state that is a standby state for an operation.

  FIG. 8 is a diagram for explaining a reduction in power consumption of the wireless communication apparatus as a premise of the present invention. The wireless communication device as a premise of the present invention includes a mobile phone and a wireless device, and uses a battery as a power source. As shown in FIG. If a silent state continues after a voice input for a certain period of time, the wireless component enters an operation standby state. If there is a voice input, the wireless component operation standby state is canceled, and the input voice is transmitted by the wireless component.

As shown in this figure (b), the wireless communication device puts the wireless part in the power supply state in the voice input state including the silent state in this figure (a), and sleeps in the power saving state in the standby state. State. This is because, in the wireless communication device, the power consumption of the wireless component is particularly large.
If the operation standby state is not set to the sleep state, a certain amount of power must be supplied to the wireless components of the wireless communication apparatus in order to transmit the sound even if there is no sound input.

For this reason, the wireless communication terminal sets the operation standby state to the sleep state. As a result, the amount of power supplied to the wireless components of the wireless communication device is minimized, and the time during which the battery of the wireless communication device can be driven can be extended.
As described above, since the wireless communication device uses a battery with a finite capacity as a power source, by putting the wireless communication device in the sleep state in the operation standby state, the power consumption in the user standby state is reduced, and the wireless communication device is wireless. This is important for extending the drive time of the communication device.

  However, in a wireless communication device that operates on a battery, in order to reduce power consumption and extend operation time, the wireless component of the wireless communication device is set to a power-saving sleep state when no voice input is generated. However, in this case, as shown in this figure (b), a certain transition time is required until the wireless component of the wireless communication device returns from the sleep state in the power saving state to the power supply state, as shown in this figure (c). As described above, when the conversation is resumed after the user interrupts the conversation, there is a problem that the beginning voice cannot be input and the conversation partner cannot hear the beginning of the word, and the user has to listen back.

FIG. 9 is a diagram for explaining an example of a situation where the conversation partner cannot hear the beginning of a word. As shown in the figure (a), with respect to words as "Hello" in the sleep state of the radio part, as shown in the figure (b), due to the transition time, the conversation partner from the wireless component There is a situation where you cannot hear the head “ko” like “Ninichiha”.
That is, in the transition state from the sleep state, which is a standby state for the operation of the wireless component of the wireless communication device, to the power supply state, since a voice input is a trigger, a certain transition time is required. For this reason, radio waves cannot be emitted at the same time as voice input to the wireless communication device, and the beginning of the voice data input by the user is not transmitted but is lost and missed.

There are the following prior arts related to the problem that is the premise of the present invention.
Conventionally, the standby function has been turned on at the user's will in order to effectively control on / off of the standby function to reduce power consumption and to make it possible to easily use other functions such as transmission. Or OFF, the power consumed at all times for transmission / reception of voice calls, data communication, etc. is suppressed, the power consumption of the portable terminal device is reduced, and the usable time of the portable terminal device is reduced. Content that can be extended, and that only functions (transmission, other functions) other than reception of mobile terminal devices can be used at all times, and content acquired via the Internet within the reach of radio waves, such as games If the standby function is OFF by registering sites such as websites and information services in advance and storing the site information in memory, Without transmits radio waves to continue, even those that can reference the pages certain (e.g., see Patent Document 1).

  However, in Patent Document 1, on / off of the standby function of the mobile terminal device is controlled. However, as described above, in Patent Document 1, power is supplied from the sleep state, which is a standby state for operating wireless components of the wireless communication device. In the transition state to the state, since the voice input is a trigger, a certain transition time is required, radio waves cannot be emitted simultaneously with the voice input to the wireless communication device, and the head of the voice data input by the user Is not prevented from being transmitted, missing, or missed.

  Conventionally, in order to provide a mobile telephone equipped with a recording / playback unit capable of recording / playing back a call, a recording switch, a playback switch, a message switch, a loudspeaker, a call or waiting A changeover switch that switches whether to transmit the content received by the receiving unit to the voice recording / playback unit or to transmit the signal transmitted from the microphone when receiving, a memory and a memory are built in, a recording switch, playback Based on ON / OFF of the switch and the message switch, the contents input via the changeover switch are stored in the memory, the contents stored in the memory and the memory are reproduced via the loudspeaker, and the contents are stored in the memory. The recording / playback unit is composed of a voice recording / playback unit that transmits the stored content via the transmitter. Some mobile phones connected to the radio section via a (e.g., see Patent Document 2).

  However, in Patent Document 2, the content stored in the memory of the mobile phone is transmitted via the transmission unit. However, as described above, in Patent Document 2, the operation waiting state of the wireless component of the wireless communication device is transmitted. In the transition state from the sleep state to the power supply state, since a voice input is used as a trigger, a certain transition time is required, and radio waves cannot be emitted simultaneously with the voice input to the wireless communication device. This does not prevent the beginning of the audio data that has been received from being transmitted, missing, and missed.

  In addition, conventionally, the present invention has an object of providing a wireless terminal device for information distribution capable of suppressing power consumption of a client when providing a service similar to push-type information distribution to a user. In a wireless terminal device for information distribution capable of wireless communication with the device, means for holding address information of the information distribution source, means for switching between a normal state and a power saving state, and a predetermined activation condition A means for automatically making a transition from the power saving state to the normal state, a means for identifying whether or not a wireless link is established with the base station when the power saving state is changed to the normal state, and a wireless in the normal state When a line is established, a means for automatically accessing a specific information distribution source using the address information to acquire information, and a transition from a normal state to a power saving state after acquiring the information is automatically performed. line Some of which are provided with means (for example, see Patent Document 3).

  However, in Patent Document 3, the information distribution wireless terminal device automatically transitions from the power saving state to the normal state. However, as described above, Patent Document 3 describes the operation of the wireless component of the wireless communication device. In the transition state from the sleep state, which is the standby state, to the power supply state, since the voice input is a trigger, a certain transition time is required, and radio waves cannot be emitted simultaneously with the voice input to the wireless communication device. Does not prevent the beginning of the audio data input from being transmitted, missing, and missed.

JP 2002-164835 A Japanese Patent Application Laid-Open No. 7-203082 JP 2003-169015 A

  Therefore, in view of the above-described problems, the wireless component of the wireless communication apparatus uses a voice input as a trigger in a transition state from a sleep state, which is an operation standby state, to a power supply state, and thus requires a certain transition time. A voice input device, method, and program for preventing radio waves from being transmitted at the same time as voice input to the wireless communication device, and preventing the beginning of the voice data input by the user from being transmitted, missing, or missed And it aims at providing a radio | wireless communication apparatus.

  In order to solve the above-described problems, the present invention has a wireless component that transmits input sound and is located between a wireless input microphone and the wireless component in a sound input device of a portable device that operates using a battery as a power source. An audio data storage device for temporarily storing the input audio data; and a flow of audio data directly from the microphone to the wireless component; and further, audio from the microphone to the wireless component via the audio data storage device. A switch that forms a data flow, a silence state detection unit that detects the presence or absence of a silence state for a certain period of time when a voice is input from the microphone to the wireless component, and a silence state for a certain period of time is detected by the silence state detection unit A wireless component sleep state transition unit that causes the wireless component to transition to a power-saving sleep state; A first switch switching unit configured to switch the switch to form a flow of audio data from the microphone to the wireless component via the audio data storage device when a silent state for a predetermined time is detected by the state detection unit; An audio data compression / output unit that compresses audio data for a transition time for switching the wireless component from a sleep state to a power supply state with respect to the audio data temporarily stored in the audio data storage device, and outputs the compressed audio data to the wireless component; A voice input detection unit that detects voice input from the microphone to the voice data storage unit and outputs the compressed voice data from the voice data compression / output unit to the wireless component after the transition time has elapsed after voice input detection. And when the voice input detection unit detects voice input from the microphone, the wireless component is put into sleep mode. A power supply state transition unit of a wireless component to be changed from a state to a power supply state, and after the audio data compressed from the audio data compression / output unit is output to the wireless component, the switch is switched to directly connect the wireless component from the microphone. And a second switch switching unit for forming a flow of voice data.

Further, the audio data compression / output unit compresses the audio data for the transition time by thinning out the audio data temporarily stored in the audio data storage device.
Furthermore, the audio data compression / output unit increases the processing speed of the audio data temporarily stored in the audio data storage device, and compresses the audio data for the transition time.
Further, the audio data storage device temporarily stores the audio data for the transition time, and the audio data to be output to the wireless component by fast-in-fast-out is compressed by the audio data compression / output unit.

  Furthermore, the present invention provides a voice input device of a portable device that has a wireless component that transmits input sound and operates using a battery as a power source. On the other hand, from the audio data storage device, the audio data storage device that temporarily stores the audio data for the transition time from the sleep state to the power supply state, and outputs the audio data to the wireless component by fast-in-fast-out A silent state detection unit for detecting whether or not a voice signal is input to the wireless component for a certain period of time; and when the silent state detection unit detects a silent state for a certain period of time, the wireless component is placed in a power saving state sleep mode. A sleep state transition unit that transitions to a state, and a voice input detection that detects voice input from the microphone to the voice data storage unit. And a power supply state transition unit of the wireless component that causes the wireless component to change from a sleep state to a power supply state when the sound input detection unit detects a sound input from the microphone. I will provide a.

  Furthermore, the present invention provides a voice input method for a portable device that has a wireless component that transmits input sound and operates using a battery as a power source, and detects whether or not there is a silent state for a certain time in the sound input from the microphone to the wireless component. And a step of transitioning the wireless component to a power-saving sleep state when a silent state for a certain time is detected, and a voice data storage device from the microphone when a silent state for a certain time is detected. A step of forming a flow of audio data in the wireless component via, a step of detecting an audio input from the microphone to the audio data storage unit, and an audio input from the microphone when detected. A step of changing from a sleep state to a power supply state, and voice data input from the microphone as the voice data storage device Temporarily storing audio data temporarily compressed in the audio data storage device, compressing the audio data for a transition time from the sleep state to the power supply state, and outputting the compressed audio data to the wireless component; And a step of forming a flow of audio data directly from the microphone to the wireless component after the compressed audio data is output to the wireless component.

  Furthermore, the present invention provides a program for executing a voice input of a portable device having a wireless component for transmitting an input voice and operating with a battery as a power source by a computer. A procedure for detecting presence / absence of a state, a procedure for transitioning the wireless component to a sleep state of a power saving state when a silent state for a certain time is detected, and a step for detecting a silent state for a certain time, from the microphone When a procedure for forming a flow of voice data in the wireless component via the voice data storage device, a procedure for detecting voice input from the microphone to the voice data storage unit, and a voice input from the microphone are detected , A procedure for changing the wireless component from a sleep state to a power supply state, and voice input from the microphone For temporarily storing data in the audio data storage device, and compressing the audio data for the transition time from the sleep state to the power supply state for the audio data temporarily stored in the audio data storage device Voice input comprising: a procedure for outputting to the wireless component; and a procedure for causing the wireless component to form a flow of audio data directly from the microphone after compressed audio data is output to the wireless component. A program for executing on a computer is provided.

  Furthermore, the present invention provides a wireless communication apparatus that operates using a battery as a power source, a microphone that inputs sound, a wireless component that transmits input sound of the microphone, and a sound that is input between the microphone and the wireless component. An audio data storage device for temporarily storing data; and a flow of audio data directly from the microphone to the wireless component; and a flow of audio data from the microphone to the wireless component via the audio data storage device. A switch to be formed, a silent state detection unit for detecting whether or not there is a silent state for a certain time in voice input from the microphone to the wireless component, and a silent state for a certain time detected by the silent state detection unit, A wireless component sleep state transition unit for transitioning a wireless component to a power saving sleep state And a first switch that switches the switch to form a flow of audio data from the microphone to the wireless component via the audio data storage device when a silence state for a predetermined time is detected by the silence state detection unit. A voice data compression unit for compressing voice data corresponding to a transition time for switching the wireless component from a sleep state to a power supply state with respect to the voice data temporarily stored in the voice data storage device; An audio that detects audio input from the microphone to the audio data storage unit and outputs the compressed audio data from the audio data compression / output unit to the radio component after the transition time has elapsed after the audio input is detected When the voice input from the microphone is detected by the input detection unit and the voice input detection unit, the wireless component The power supply state transition unit of the wireless component that is switched from the sleep state to the power supply state, and after the audio data compressed from the audio data compression / output unit is output to the wireless component, the switch is switched to directly connect the wireless from the microphone. Provided is a wireless communication device comprising a second switch switching unit that causes a part to form a flow of audio data.

  As described above, according to the present invention, the presence / absence of a silent state for a certain time is detected in the sound input from the microphone to the wireless component, and when the silent state for a certain time is detected, the wireless component is placed in the power saving state. When a state of silence for a certain period of time is detected by transitioning to the sleep state, a voice data flow is formed in the wireless component from the microphone via the voice data storage device, and voice input from the microphone to the voice data storage unit is detected. When the audio input from the microphone is detected, the wireless component is switched from the sleep state to the power supply state, the audio data input from the microphone is temporarily stored in the audio data storage device, and the audio data temporarily stored in the audio data storage device Audio data is compressed for the transition time from the sleep state to the power supply state and output to the wireless component. After the compressed audio data is output to the wireless component, the audio data flow is formed directly from the microphone to the wireless component. Therefore, the beginning of the audio data input by the user is not transmitted and is lost and removed. It has become possible to prevent spills.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a wireless communication apparatus according to the present invention. The wireless communication device 100 of the present invention is a mobile phone or a portable wireless device that operates using a battery as a power source, and does not miss input audio even when the wireless component is in a sleep state in order to reduce power consumption, and transmits it to a communication partner. Is executed under program control.

As shown in the figure, the wireless communication apparatus 100 is provided with a wireless component 200. The wireless component 200 is connected to an antenna (not shown), and transmits and receives an audio signal via the antenna.
Further, the wireless communication device 100 is provided with an audio data storage device 400, and the audio data storage device 400 temporarily stores the audio data input from the microphone 300.
When the wireless component 200 is connected to the microphone 300 via the switch 501 and the switch 502, and the switches 501 and 502 form the voice data flow A) in the normal state, the microphone 300 inputs the voice and in the normal state. Audio data flow A) to the wireless component 200.

The wireless component 200 is provided with a silence state detection unit 201. The silence state detection unit 201 detects a silence state that continues for a certain period of time in the sound input from the microphone 300.
Further, the wireless component 200 is provided with a switch switching unit 202. The switch switching unit 202 switches the switches 501 and 502 when the silent state detection unit 201 detects the silent state, and the switches 501 and 502 wait for an operation. When the voice data flow B-1) when the voice is input in the state and the temporarily stored voice data flow B-2) are formed, the voice data storage device 400 receives the voice in the operation standby state. The voice data is temporarily stored in the voice data flow B-1), and the compressed voice data described later is output to the wireless component 200 in the temporarily stored voice data flow B-2).

  Further, the wireless component 200 is provided with a wireless component sleep state transition unit 203. The wireless component sleep state transition unit 203 transitions power supply from a battery (not shown) to the wireless component 200 to a sleep state in a power saving state.

The voice data storage device 400 is provided with a voice input detection unit 401. The voice input detection unit 401 detects voice input from the microphone 300. When voice input is detected, the voice data storage device 400 converts the input voice data. To save temporarily.
Furthermore, the audio data storage device 400 is provided with a wireless component power supply state transition unit 402. The wireless component power supply state transition unit 402 detects a voice input by the audio input detection unit 401, and then detects a wireless component 200 from a battery (not shown). The sleep state is shifted to the power supply state.

  Further, the audio data storage device 400 is provided with an audio data compression unit / output unit 403, and the audio data compression / output unit 403 performs sleep of the wireless component 200 for the audio data temporarily stored in the audio data storage device 400. The compression processing is performed for the transition time for transition from the state to the power supply state, and after the transition time has elapsed after the voice input is detected by the voice input detection unit 401, the voice data subjected to the compression processing is output to the wireless component 200. Note that the transition time of the wireless component 200 is measured in advance, and the degree to which the audio data is compressed is set in advance from the quality of the audio.

In this case, the wireless component 200 is shifted to the power supply state by the audio data compression unit 402 of the audio data storage device 400 and transmits the audio data compressed by the audio data compression unit 402.
Furthermore, the audio data storage device 400 is provided with a switch switching unit 404. The switch switching unit 404 switches the switches 501 and 502 after outputting the compressed audio data, and directly inputs the audio data input from the microphone 300 to the wireless component 200. Output and continue to compressed audio data.

In this case, the wireless component 200 continuously transmits the audio data input from the microphone 300 to the compressed audio data.
FIG. 2 is a diagram for explaining audio data compression of the audio data compression / output unit 403 of the audio data storage device 400 in FIG. As shown in this figure (a), the audio data storage device 400 temporarily saves the audio data from the microphone 300 via the switch 501, and as shown in this figure (b), the audio data compression / output unit 403 The audio data is thinned out at equal intervals with respect to the audio data temporarily stored in the audio data storage device 400, and the audio data corresponding to the transition time is thinned out from the audio data as shown in FIG. It is packed with audio data to be input next to the trace, and the transition time is compressed.

  In this case, the audio data is thinned out so that the quality of the audio does not deteriorate. For example, when the transition time is 0.2 seconds, the sound data for 2 seconds, which is 10 times the transition time, is temporarily stored in the sound data storage device 400, and the sound data is compressed with respect to the temporarily stored sound data. In the audio data thinning process of the output unit 403, one audio data may be thinned out for every 10 audio data.

  FIG. 3 is a diagram for explaining an example of outputting compressed audio data by the audio data compression / output unit 403 in FIG. As shown in the figure (a), as an example, voice input from the microphone 300 into audio data compression and output unit 403 via the switch 501, the voice data of "Hello today" only 2 seconds Assume that the audio data storage device 400 temporarily stores the data.

  As shown in FIG. 5B, the transition time is set to 0.2 seconds as described above, and the audio data compression / output unit 403 temporarily stores the audio data in the audio data storage device 400 by thinning out the audio data. The voice data is compressed into voice data for 1.8 seconds, and the voice data compressed after the transition time (0.2 seconds) after the voice detection of the voice input detection unit 401 is transmitted via the switch 502 to the wireless component. Output to 200.

  FIG. 4 is a diagram for explaining an example of audio data input to the wireless component 200. As shown in the figure (a), when the speech input of "Hello today meeting is discontinued" into the microphone 300, the wireless component 200 after the transition time has elapsed from the start of the voice input, the audio data compression and output part from the 403, "Hello today" and compressed audio data is input and, immediately after that, the input audio data from the microphone 300 and the "conference is discontinued."

  FIG. 5 is a flowchart for explaining a series of operations of the wireless communication apparatus 100 in FIG. As shown in this figure, in step 501, the silent state detection unit 201 of the wireless component 200 determines whether or not there is a silent state for a certain time, for example, one minute, with respect to the input sound of the microphone 300 via the switches 501 and 502. If it is detected and no silence is detected, the process proceeds to step 512.

In step 502, when the silent state is detected, the switch switching unit 202 switches the switches 501 and 502 to connect the microphone 300, the audio data storage device 400, and the wireless component 200.
In the switches 501 and 502, the microphone 300 and the wireless component 200 are directly connected as an initial state when the wireless communication device 100 is turned on.

In step 503, the wireless component sleep state transition unit 203 places the wireless component 200 in the sleep state.
In step 504, the voice input detection unit 401 waits to detect voice input of the microphone 300 that has become silent.
In step 505, when the voice input detection unit 401 detects voice input of the microphone 300, the wireless component power supply state transition unit 402 sets the wireless component 200 in the sleep state to the power supply state. In this case, it is possible to reduce power consumption while the wireless component 200 is in the sleep state.

In step 506, the audio data storage device 400 temporarily stores the audio data from the microphone 300.
In step 507, the audio data compression / output unit 403 compresses the audio data by thinning out the audio data temporarily stored in the audio data storage device 400 by the transition time.
In step 508, it is determined whether the transition time has elapsed since the voice input detection of the voice input detection unit 401. If the transition time has not elapsed, the process returns to step 506 and the above processing is repeated.

If the transition time has elapsed in step 509, the audio data compression / output unit 403 outputs the compressed audio data to the wireless component 200. Since the wireless component 200 is in a power supply state, the compressed audio data is input from the audio data compression / output unit 403 and transmitted.
In step 510, the audio data compression / output unit 403 determines whether or not all compressed audio data has been transmitted. If not all have been transmitted, the process returns to step 506 and the above processing is repeated.

If the audio data compression / output unit 403 determines in step 511 that all compressed audio data has been output, the switches 501 and 502 are switched to directly connect the microphone 300 and the wireless component 200.
In step 512, audio data is output from the microphone 300 to the wireless component 200, and the process ends.

  Therefore, according to the present invention, in the wireless communication device 100 that operates using a battery having a finite capacity as a power source, the wireless component 200 is placed in the sleep state during the standby state in order to extend the drive time of the wireless communication device 100, and the wireless communication device 100 is wirelessly connected. Even if the power input to the component 200 is reduced, the voice input in the operation standby state is temporarily stored in the voice data storage device 400, and the state transition is required when the wireless component 200 returns to the normal state, the user inputs The voice data from the microphone 300 is restored while the voice data stored in the voice data storage device 400 is compressed to recover the delay of the voice data to be transmitted. It is possible to have a buffering function that connects to

In the description of FIG. 2, as an example, the audio data storage device 400 temporarily stores audio data for 2 seconds, which is 10 times the transition time of 0.2 seconds. Is temporarily stored, and audio data is output to the wireless component 200 by first-in first-out (FIFO).
In this case, in the audio data compression / output unit 403, as described with reference to FIG. 2, in the audio data thinning process, the audio data is thinned out at a rate of 1 for every 10 audio data, and the thinned trace is next. Packed with audio data to be input to and compresses the audio data.
Thereby, the capacity | capacitance of the audio | voice data storage apparatus 400 can be made small.

  FIG. 6 is a diagram for explaining a modification of the compression of the audio data compression / output unit 403 in FIG. As shown in FIG. 4A, the audio data storage device 400 temporarily stores the audio data from the microphone 300. The temporarily stored audio data is 2 seconds. In this case, the processing speed of the audio data is “V”. As described above, 2 seconds is 10 times the transition time of 0.2 seconds.

As shown in FIG. 7B, the audio data compression / output unit 403 reduces the interval of the audio data temporarily stored in the audio data storage device 400 and outputs the processing speed to the wireless component 200 as “1.1 V”. And send it. In this case, the wireless component 200 can be transmitted with respect to the audio data whose processing speed has changed, and further, the receiving party can also receive.
In this way, the processing speed is set to “1.1 V”, and the temporarily stored audio data for 2 seconds can be compressed to 1.8 seconds.

In the description of FIG. 6, as an example, the audio data storage device 400 temporarily stores audio data for 2 seconds, which is 10 times the transition time of 0.2 seconds. Is temporarily stored, and audio data is output to the wireless component 200 by first-in first-out (FIFO).
In this case, the audio data compression / output unit 403 reduces the interval of the audio data temporarily stored in the audio data storage device 400 and sets the processing speed to “1.1 V”, as described with reference to FIG. Output to.
Thereby, the capacity | capacitance of the audio | voice data storage apparatus 400 can be made small.

  FIG. 7 is a block diagram showing a schematic configuration of a wireless communication apparatus, which is a modification of FIG. As shown in the figure, an audio data storage device 400 is provided between the microphone 300 and the wireless component 200 as compared with FIG. The audio data storage device 400 temporarily stores the audio data from the microphone 300 for the transition time, and outputs the audio data temporarily stored for the transition time to the wireless component 200 by first-in first-out (FIFO).

The wireless component 200 is provided with a silence state detection unit 201. The silence state detection unit 201 detects a silence state that continues for a certain period of time in the sound input from the microphone 300.
Further, the wireless component 200 is provided with a wireless component sleep state transition unit 203. The wireless component sleep state transition unit 203 transitions power supply from a battery (not shown) to the wireless component 200 to a sleep state in a power saving state.

The voice data storage device 400 is provided with a voice input detection unit 401. The voice input detection unit 401 detects voice input from the microphone 300. When voice input is detected, the voice data storage device 400 converts the input voice data. To save temporarily.
Furthermore, the audio data storage device 400 is provided with a wireless component power supply state transition unit 402. The wireless component power supply state transition unit 404 detects a voice input by the audio input detection unit 401 and then detects a wireless component 200 from a battery (not shown). The sleep state is shifted to the power supply state.

  Therefore, according to the present invention, if the silence state continues for a certain period of time in the audio data to the wireless component 200, the wireless component 200 enters the sleep state, power consumption can be reduced, and voice input is performed when the wireless component 200 is in the sleep state. When detected, the wireless component 200 is in a power supply state, and the sound data is temporarily stored in the sound data storage device 400 for the transition time and output to the wireless component 200. For this reason, it is possible to provide a buffering function that enables a call without losing the beginning of the voice data input by the user.

  In this case, the audio data to be transmitted is delayed by the transition time, but the transition time is short. For example, when the transition time is about 0.1 second, the delay is small, and the delay does not deteriorate the sound quality, However, the present invention is effective.

  The mobile phone and the mobile wireless device have been described above. However, the present invention is not limited to these, and the present invention can be used for a PDA (personal digital assistant) and a PHS (simple mobile phone).

It is a block diagram which shows schematic structure of the radio | wireless communication apparatus which concerns on this invention. It is a figure explaining the audio | voice data compression of the audio | voice data compression and output part 403 of the audio | voice data storage apparatus 400 in FIG. It is a figure explaining the example which outputs the audio | voice data compressed by the audio | voice data compression and output part 403 in FIG. It is a figure explaining the example of the audio | voice data input into the wireless component. 2 is a flowchart illustrating a series of operations of the wireless communication device 100 in FIG. 1. It is a figure explaining the modification of the compression of the audio | voice data compression and output part 403 of FIG. It is a modification of FIG. 1, and is a block diagram showing a schematic configuration of a wireless communication device. It is a figure explaining reduction of the power consumption of the radio | wireless communication apparatus used as the premise of this invention. It is a figure explaining the example of a situation where the conversation partner cannot hear the head of a word.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Wireless communication apparatus 200 ... Wireless component 201 ... Silent state detection part 202 ... Switch switching part 203 ... Wireless component sleep state transition part 300 ... Microphone 400 ... Voice data storage device 401 ... Voice input detection part 402 ... Power supply of wireless parts State transition unit 403 ... audio data compression / output unit 404 ... switch switching unit 501, 502 ... switch

Claims (8)

In a voice input device of a portable device that has a wireless component that transmits input voice and operates using a battery as a power source,
An audio data storage device that is located between the microphone for inputting audio and the wireless component and temporarily stores the input audio data;
Forming a flow of audio data directly from the microphone to the wireless component, and further forming a flow of audio data from the microphone to the wireless component via the audio data storage device;
A silent state detection unit for detecting the presence or absence of a silent state for a certain time in the voice input from the microphone to the wireless component;
When a silent state for a certain period of time is detected by the silent state detection unit, a sleep state transition unit of a wireless component that causes the wireless component to transition to a sleep state of a power saving state, and
When the silent state detection unit detects a silent state for a certain time, the switch is switched to switch the microphone to form a flow of audio data from the microphone to the wireless component via the audio data storage device. And
An audio data compression / output unit that compresses audio data for a transition time for switching the wireless component from a sleep state to a power supply state with respect to the audio data temporarily stored in the audio data storage device, and outputs the compressed audio data to the wireless component;
A voice input detection unit that detects voice input from the microphone to the voice data storage unit, and outputs the voice data compressed from the voice data compression / output unit to the wireless component after the transition time has elapsed after voice input detection; ,
When the voice input from the microphone is detected by the voice input detection unit, a power supply state transition unit of the wireless component that causes the wireless component to change from a sleep state to a power supply state;
A second switch switching unit configured to switch the switch after the audio data compressed from the audio data compression / output unit is output to the wireless component and to form a flow of audio data directly from the microphone to the wireless component; A voice input device comprising: The voice input device according to claim 1, wherein the voice data compression / output unit compresses the voice data for the transition time by thinning the voice data temporarily stored in the voice data storage device. . The audio data compression / output unit according to claim 1, wherein the audio data compression / output unit increases the processing speed of the audio data temporarily stored in the audio data storage device and compresses the audio data for the transition time. Input device. The audio data storage device temporarily stores the audio data for the transition time, and the audio data output to the wireless component by fast-in-fast-out is compressed by the audio data compression / output unit. The voice input device according to claim 1. In a voice input device of a portable device that has a wireless component that transmits input voice and operates using a battery as a power source,
Voice data corresponding to a transition time in which the wireless component is placed in a power supply state from a sleep state is temporarily stored with respect to the input voice data located between the microphone for inputting voice and the wireless component. An audio data storage device for outputting audio data to the component;
A silence state detection unit for detecting the presence or absence of a silence state for a predetermined time in the voice input from the voice data storage device to the wireless component;
When a silent state for a certain period of time is detected by the silent state detector, a sleep state transition unit that transitions the wireless component to a power saving state sleep state;
A voice input detection unit for detecting voice input from the microphone to the voice data storage unit;
An audio input device comprising: a wireless component power supply state transition unit that changes the wireless component from a sleep state to a power supply state when the sound input detection unit detects a sound input from the microphone. In a voice input method of a portable device that has a wireless component that transmits input voice and operates using a battery as a power source,
Detecting the presence or absence of a silent state for a certain period of time during voice input from a microphone to the wireless component;
When a silent state for a certain period of time is detected, transitioning the wireless component to a power-saving sleep state; and
If a silent state for a certain period of time is detected, forming a flow of audio data from the microphone to the wireless component via an audio data storage device;
Detecting voice input from the microphone to the voice data storage unit;
When detecting voice input from the microphone, the step of changing the wireless component from a sleep state to a power supply state;
Temporarily storing voice data input from the microphone in the voice data storage device;
Compressing the audio data for the transition time for changing the wireless component from the sleep state to the power supply state with respect to the audio data temporarily stored in the audio data storage device, and outputting the compressed data to the wireless component;
And a step of forming a flow of audio data directly from the microphone to the wireless component after the compressed audio data is output to the wireless component. In a program for executing voice input of a portable device having a wireless component that transmits input voice and operating with a battery as a power source by a computer,
A procedure for detecting whether or not there is a silent state for a certain time in a voice input from a microphone to the wireless component;
A procedure for transitioning the wireless component to a sleep state in a power saving state when a silent state for a certain period of time is detected;
When a silent state for a certain period of time is detected, a procedure for forming a flow of audio data from the microphone to the wireless component via an audio data storage device;
Detecting voice input from the microphone to the voice data storage unit;
When detecting a voice input from the microphone, a procedure for changing the wireless component from a sleep state to a power supply state;
A procedure for temporarily storing voice data input from the microphone in the voice data storage device;
A procedure for compressing audio data for a transition time for changing the wireless component from a sleep state to a power supply state for the audio data temporarily stored in the audio data storage device, and outputting the compressed data to the wireless component;
A program for executing voice input on a computer, comprising: a step of causing the wireless component to form a flow of audio data directly from the microphone after compressed audio data is output to the wireless component. In a wireless communication device that operates using a battery as a power source,
A microphone for voice input,
A wireless component for transmitting the input sound of the microphone;
An audio data storage device for temporarily storing the input audio data located between the microphone and the wireless component;
Forming a flow of audio data directly from the microphone to the wireless component, and further forming a flow of audio data from the microphone to the wireless component via the audio data storage device;
A silent state detection unit for detecting the presence or absence of a silent state for a certain time in the voice input from the microphone to the wireless component;
When a silent state for a certain period of time is detected by the silent state detection unit, a sleep state transition unit of a wireless component that causes the wireless component to transition to a sleep state of a power saving state, and
When the silent state detection unit detects a silent state for a certain time, the switch is switched to switch the microphone to form a flow of audio data from the microphone to the wireless component via the audio data storage device. And
An audio data compression / output unit that compresses audio data for a transition time for switching the wireless component from a sleep state to a power supply state with respect to the audio data temporarily stored in the audio data storage device, and outputs the compressed audio data to the wireless component;
A voice input detection unit that detects voice input from the microphone to the voice data storage unit, and outputs the voice data compressed from the voice data compression / output unit to the wireless component after the transition time has elapsed after voice input detection; ,
When the voice input from the microphone is detected by the voice input detection unit, a power supply state transition unit of the wireless component that causes the wireless component to change from a sleep state to a power supply state;
A second switch switching unit configured to switch the switch after the audio data compressed from the audio data compression / output unit is output to the wireless component and to form a flow of audio data directly from the microphone to the wireless component; A wireless communication apparatus comprising:

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