JP3115163U - Audio transceiver for radio - Google Patents

Abstract

An object of the present invention is to provide an audio transmission / reception apparatus for a radio that can always transmit accurate user's voice.
When a transmission voice is input, a PTT signal is generated. When a response signal to the PTT signal is received from a destination wireless device, a transmission mode is set. When a reception voice is input, a reception mode is set. A control unit that does not generate a signal, a transmission voice delay unit that delays and outputs transmission voice in the transmission mode, and a voice input detection unit that senses whether transmission voice and reception voice can be input are provided. . Therefore, the user can perform voice communication with the other party without pressing the PTT button. Also, the radio transceiver device outputs the user's voice after outputting the PTT signal first, and receives the user's voice after the operation mode of the radio is switched to the transmission mode. This prevents in advance the problem that the radio cannot recognize the first part of the user voice, and prevents a part of the user voice from being lost.
[Selection] Figure 2

Description

  The present invention relates to a voice recognition automatic transmission microphone, and more particularly to a voice recognition automatic transmission microphone used in a radio.

  A wireless device is a device that can perform one-to-one and one-to-many wireless communication within a predetermined region using a predetermined frequency band. The type of the wireless device is an industrial wireless device (LMR), a frequency There are a shared communication (TrunkKED Radio System; TRS) radio, an amateur (HAM) radio, a CB (Citizen Band) radio, a life radio service (FRS), and the like.

  The frequency sharing communication radio configures a radio communication network by including a base station, an exchange, and a number of frequency sharing communication radios by performing one-to-many communication. Since such a frequency sharing communication radio must pass through an authentication process by a radio communication network, first, a PTT signal is transmitted by pressing the PTT button, and a voice is transmitted after receiving a PTT response signal from the other radio. be able to.

  On the other hand, the amateur radio, the CB radio, and the life radio are directly connected to the other radio without going through the base station and the exchange. Accordingly, a special authentication process is not required, and the PTT button can be pressed to transmit a PTT signal and transmit a voice.

  Here, the PTT signal is a signal for informing the other wireless device that the wireless device operates in the transmission mode.

  In this way, in order to transmit voice using a wireless device, the user must always press the PTT button of the wireless device. Here, when a user searches for a book while driving or during voice communication, or when using both hands to use the operation panel of a computer, the user feels inconvenience. In particular, when using a radio device during driving, the PTT button must be operated, so that not only the user's inconvenience but also the lack of concentration on driving increases the risk of traffic accidents.

  Currently, in order to solve the above-described problems, a voice transmitter / receiver device (voice transferring device) for transmitting a user's voice from the radio using the external speaker microphone terminal of the radio and outputting the other party's voice to the speaker is used. for two-way radio) has been developed and widely used.

  FIG. 1 is a diagram showing a conventional radio transmitter / receiver for a radio and a radio using the same. As shown in FIG. 1, the conventional radio transmitter / receiver 1 for a radio has an external speaker microphone terminal of a radio 5. 7 is wired.

  The wireless audio transmitting / receiving apparatus 1 includes a microphone 3 and a speaker 2 and senses when a user speaks, and generates a PTT signal. Output to the microphone terminal 7.

  Moreover, the audio transceiver 1 further includes an external speaker microphone terminal 4 that allows an external speaker microphone 8 to be attached. As a result, when the external speaker microphone 8 is attached to the external speaker microphone terminal 4, the external speaker microphone 8 inputs sound and outputs received sound.

  As described above, when a user's voice is input, the conventional radio transmitter / receiver for a radio generates a PTT signal, and simultaneously outputs the generated PTT signal and the user's voice to the radio.

  However, when a PTT signal is applied from the outside, the wireless device converts to the transmission mode in response to this, and transmits the user's voice input in the transmission mode to the other wireless device.

  Therefore, when the radio receives the PTT signal and the user's voice from the conventional radio transceiver, the user's voice corresponding to the time for conversion to the transmission mode can be transmitted to the other radio. Disappear. That is, the problem that the first part of the user voice is lost occurs.

  An object of the present invention is to perform voice communication for radio equipment in which a PTT signal is first generated in voice communication, and then the user voice is transmitted to prevent a part of the user voice from being lost. To provide an apparatus.

  In order to achieve the above-described object, the wireless audio transmitting / receiving apparatus according to the first aspect of the present invention includes a transmission audio delay unit that outputs a transmission audio with a delay, and a PTT signal when the transmission audio is input, A control unit that does not generate the PTT signal when a reception voice is input, and a voice input detection unit that detects whether the transmission voice and the reception voice can be input are provided.

  In order to achieve the above object, the radio transceiver for radio according to the second embodiment of the present invention generates a PTT signal when a transmission voice is input, and then receives a response signal for the PTT signal from the other radio. A control unit that sets a transmission mode and sets a reception mode when a reception voice is input and does not generate a PTT signal; a transmission voice delay unit that outputs a transmission voice by delaying in the transmission mode; and the transmission A voice input sensing unit for sensing whether or not voice and the received voice can be input is provided.

  The radio | wireless audio | voice transmission / reception apparatus of this invention maximizes a user's convenience so that a user can perform voice communication with the other party, without pushing a PTT button.

  In addition, the radio voice transmitting / receiving apparatus outputs the user's voice after first outputting the PTT signal, so that the user's voice can be received after the operation mode of the radio is switched to the transmission mode. As a result, it is possible to prevent in advance a problem that the wireless device cannot recognize the first part of the user voice and to prevent a part of the user voice from being lost. That is, a radio using the radio transceiver device can always transmit accurate user voice.

  Hereinafter, a semiconductor memory device and an input / output line precharge method according to the present invention will be described with reference to the accompanying drawings.

  FIG. 2 is a block diagram of a radio transceiver apparatus according to the first embodiment of the present invention. The radio transceiver does not pass through a base station and an exchange station like an amateur radio, a CB radio, and a life radio. It is an audio transmission / reception apparatus for a radio connected to a radio that performs communication.

  Referring to FIG. 2, the radio transceiver for the radio of the present invention includes a transmission audio delay unit 10, an audio input sensing unit 20, a mode setting unit 30, a transmission signal processing unit 40, a radio interface unit 50, and a user interface. The unit 60 is provided. The transmission audio delay unit 10 includes a transmission audio buffer 11, an AD converter 12, a memory unit 13, a DA converter 14, and a signal amplification unit 15. The transmission signal processing unit 40 includes a PTT signal generation unit 41, a transmission end alarm sound generation. The unit 42 is provided.

  The transmission audio buffer 11 of the transmission audio delay unit 10 buffers the audio transmitted from the user interface unit 60 and filters it to remove user's audio (hereinafter referred to as “transmission audio”) noise. Then, the transmission voice is amplified after being amplified to a predetermined voltage value so that the voice transmission / reception apparatus for radio equipment can recognize it, and then outputted.

  The AD converter 12 of the transmission audio delay unit 10 switches the analog audio transmitted from the transmission audio buffer 11 as digital data.

  The memory unit 13 of the transmission audio delay unit 10 saves the audio digital data transmitted from the AD converter 12 for a predetermined time and outputs it.

  The DA converter 14 of the transmission audio delay unit 10 switches the audio digital data transmitted from the memory unit 13 to analog audio.

  The signal amplifying unit 15 of the transmission audio delay unit 10 receives the transmission audio transmitted from the DA converter 14 or the transmission end alarm sound transmitted from the transmission end alarm sound generation unit 41 so that the radio recognizes this. Are amplified to a predetermined signal size and then output to the radio interface unit 50.

  The transmission voice input sensing unit 21 of the voice input sensing unit 20 is connected to the user interface unit 60 and senses whether transmission voice is input from the user interface unit 60. If transmission sound is input as a result of detection, a transmission sound detection signal notifying that the transmission sound is input to the mode setting unit 30 is generated and transmitted to the mode setting unit 30.

  The received voice input sensing unit 22 of the voice input sensing unit 20 is connected to the radio interface unit 50 and senses whether the other party's voice (hereinafter referred to as “received voice”) is input from the radio. As a result of the detection, when reception voice is input from the wireless device, a reception voice detection signal notifying that the reception voice is input to the mode setting unit 30 is generated and transmitted to the mode setting unit 30.

  The mode setting unit 30 controls the operation of all the components and sets the operation mode according to the state of the transmission voice input sensing unit 21 and the reception voice input sensing unit 22. That is, when the mode setting unit 30 receives the transmission voice sensing signal from the transmission voice input sensing unit 21, the mode setting unit 30 confirms that the transmission voice is input, sets the operation mode as the transmission mode, and then transmits the transmission voice to the wireless device. A PTT activation signal to be generated is generated and applied by the PTT signal generator 42. If the transmission voice detection signal is not received even after a predetermined time has elapsed with the transmission mode set, it is confirmed that there is no more voice to be transmitted and a transmission end control signal is generated. Then, it is applied to the transmission end alarm sound generation unit 41, and the operation mode of the radio transceiver apparatus is set as a standby mode. When the setting to the standby mode is completed, a PTT inactivation signal is generated and applied to the PTT signal generator 42.

  Further, even if transmission sound is continuously input in a state where the transmission mode is set, conversion to the standby mode is performed when the set time has elapsed. When the wireless device operates in the transmission mode despite the elapse of the set time, other users cannot use the frequency, so that the use of this function can increase the frequency usage efficiency. . Moreover, the effect which prevents the continuous transmission by the malfunction of a radio | wireless machine can also be provided.

  When the mode setting unit 30 receives the reception voice detection signal from the reception voice input sensing unit 22, the mode setting unit 30 confirms that the reception voice is transmitted from the wireless device, and sets the operation mode to the reception mode unconditionally. A PTT inactivation signal is generated and applied to the PTT signal generator 42 so that the transmission voice is not transmitted to the radio.

  As a result, even if the transmission mode is already set, the mode setting unit 30 converts the received voice detection signal from the received voice input sensing unit 22 into the reception mode.

  The transmission end alarm sound generation unit 41 of the transmission signal processing unit 40 transmits in response to the transmission / reception device for radio equipment entering the standby mode and receiving a transmission end control signal from the mode setting unit 30. An end warning sound is generated, and the generated transmission end warning sound is output to the signal amplifying unit 15.

  The PTT signal generation unit 42 of the transmission signal processing unit 40 generates a PTT signal in response to the PTT activation signal applied from the mode setting unit 30 when the radio transceiver device operates in the transmission mode. The generated PTT signal is output to the radio interface unit 50.

  On the other hand, when the radio transceiver apparatus is set to the reception mode and the PTT inactivation signal is applied from the mode setting unit 30, no PTT signal is generated in response thereto. This means that, in the reception mode, even if the audio transmission / reception device for radio outputs the transmission audio, the radio cannot recognize it.

  The radio interface unit 50 includes a transmission signal output terminal 51 and a reception signal input terminal 52, and outputs a signal generated by the internal operation of the audio transceiver for the radio through the transmission signal output terminal 51. A signal transmitted from the wireless device is input through the input terminal 52.

  That is, a transmission voice, a transmission end alarm sound, and a PTT signal are output through the transmission signal output terminal 51, and a reception voice transmitted from the wireless device is input through the reception signal input terminal 52.

  The user interface unit 60 includes a microphone 61, a speaker 62, and an external speaker microphone terminal 63. Therefore, the microphone 61 inputs the transmission voice and transmits it to the transmission voice buffer 11 and the transmission voice input sensing unit 21, and the speaker 62 is connected to the reception signal input terminal 52 of the radio interface unit 50 to receive the reception signal input terminal 52. The received voice input by is output.

  The external speaker microphone terminal 63 of the user interface unit 60 allows an external external speaker microphone to be attached. As a result, when an external speaker microphone is attached to the external speaker microphone terminal 63, the transmission sound is input and the reception sound is output by the external speaker microphone.

  And the audio | voice audio | voice transmission / reception apparatus of this invention can further be equipped with the key button part (not shown).

  In this case, the key button unit includes a transmission start button so that the user can physically request entry into the transmission mode. Accordingly, when the user presses the key button part, a transmission mode setting signal is generated and applied to the mode setting part.

  Then, when the transmission voice is input in a state where the transmission mode setting signal is received, the mode setting unit 30 sets the operation mode of the radio voice transmitting / receiving apparatus in the transmission mode, and the operation is performed.

  As described above, the radio transceiver device according to the present invention further includes the key button part in order to prevent the speech transceiver apparatus from malfunctioning due to noise in the surrounding environment although the transmitted voice is substantially absent. It is.

The voice transmitting / receiving apparatus of FIG. 2 configured as described above operates as follows.
First, examine the case of operating in the transmission mode.
Transmission sound input from the microphone 61 or an external speaker microphone is applied to the transmission sound input sensing unit 21 and the transmission sound delay unit 10.
Here, the transmission voice input sensing unit 21 senses that the transmission voice is input, and notifies the mode setting unit 30 that the transmission voice is input.
In response to the input of the transmission voice, the mode setting unit 30 sets the operation mode of the radio voice transmission / reception apparatus to the transmission mode, controls the PTT signal generation unit 40 to generate the PTT signal, and generates the radio interface. It outputs to the part 50.

  In addition, the transmission audio input to the transmission audio delay unit 10 is recognized by the radio device as a predetermined time delay through the transmission audio buffer 11, the AD converter 12, the memory unit 13, the DA converter 14, and the signal amplification unit 15. The signal is output to the radio interface unit 50 after having a sufficient signal size.

  If the transmission sound is not applied even after a predetermined time has elapsed in the state of operating in the transmission mode, the mode setting unit 30 controls the transmission end alarm sound generation unit 41 to transmit the transmission end alarm sound for the wireless device. After outputting to the interface unit 50, the mode is switched to the standby mode. Then, the mode setting unit 30 switched in the standby mode controls the PTT signal generation unit 42 to stop the generation of the PTT signal.

Next, let us examine the case of operating in the reception mode.
When the reception voice is input by the radio interface unit 50, the reception voice input detection unit 22 detects this and notifies the mode setting unit 30 that the reception voice is input.
Upon receiving the input of the received voice, the mode setting unit 30 sets the reception mode and controls the PTT signal generation unit 42 so that no PTT signal is generated.

  At the same time, the received voice input by the radio interface unit 50 is output as voice by the speaker 61 of the user interface unit 60 or the external speaker microphone attached to the external speaker microphone terminal 62.

  FIG. 3 is a block diagram of a radio transceiver for a radio according to a second embodiment of the present invention. A radio that performs voice communication via a base station and an exchange, such as an industrial radio and a frequency sharing communication radio. Is a voice transceiver for a radio connected to

Referring to FIG. 3, the radio transceiver for the radio of the present invention is similar to that shown in FIG. 1 in that the radio transceiver is a transmission audio delay unit 10, an audio input sensing unit 20, a transmission signal processor 40, and a radio. The interface unit 50 and the user interface unit 60 are provided, and the operations of the mode setting unit 80, the memory unit 90 of the transmission audio delay unit 10, and the reception audio input detection unit 100 of the audio input detection unit 20 are changed.
Therefore, the components in FIG. 3 having the same functions as those in FIG. 2 are given the same numbers as in FIG.

  The mode setting unit 80 controls the operation of all the components, and sets the operation mode according to the states of the transmission voice input sensing unit 21 and the reception voice input sensing unit 100. That is, when receiving the transmission voice sensing signal from the transmission voice input sensing unit 21, the mode setting unit 80 confirms that the transmission voice is inputted, generates a PTT activation signal, and applies it to the PTT signal generation unit. Therefore, the PTT signal generator 42 generates a PTT signal and outputs it to the radio interface unit 50.

  When the mode setting unit 80 receives the transmission conversion end signal from the reception voice input sensing unit 100, the mode setting unit 80 confirms that the radio also operates in the transmission mode, and sets the operation mode of the radio transceiver for the radio to the transmission mode. . Then, the memory unit operation activation signal is generated and output to the memory unit 90, and the audio digital data stored in the memory unit 90 is output to the DA converter 14. Therefore, the transmission voice input to the transmission voice delay unit 10 is output to the radio interface unit 50.

  If a transmission voice sensing signal cannot be received from the transmission voice input sensing unit 21 even though a predetermined time has elapsed with the transmission mode set, a transmission termination control signal is generated and a transmission termination warning sound is generated. This is applied to the unit 41, and the operation mode of the radio transceiver apparatus is switched to the standby mode. When the switching to the standby mode is completed, a PTT inactivation signal is generated and applied to the PTT signal generator 42.

  Further, even if transmission voice is continuously input in a state where the transmission mode is set, when the set time has elapsed, conversion to the standby mode is performed.

  Then, when the reception voice detection signal is received from the reception voice input sensing unit 100 of the radio, it is confirmed that the reception voice is transmitted from the radio, the operation mode is set to the reception mode, and the PTT is deactivated. A signal is generated and applied to the PTT signal generator 42.

  The memory unit 90 stores the audio digital data transmitted from the AD converter 12 and outputs the stored transmission audio when the memory unit operation activation signal transmitted from the mode setting unit 80 is received.

  The reception voice input sensing unit 100 senses whether a reception voice or a response signal of the PTT signal is input from the radio, and generates a reception voice detection signal when the voice is input from the radio. When a response signal of the PTT signal is input, a transmission switching end signal for notifying that the radio has been set to the transmission mode is generated and transmitted to the mode setting unit 80.

  The response signal of the PTT signal at this time is a signal for notifying that the wireless device has received the PTT signal of the wireless audio transmission / reception apparatus and has changed the operation mode to the transmission mode in response thereto.

  Unlike the wireless device of FIG. 2, the wireless device of FIG. 3 enters the transmission mode after receiving the response signal of the PTT signal. The wireless device of FIG. 3 performs one-to-many communication. In order to perform voice communication through the switching center, it is necessary to set up communication links for the base station, the switching center, and the destination wireless terminal.

The radio transceiver apparatus shown in FIG. 3 configured as described above operates as follows.
First, let's examine the case of operating in the transmission mode.
Transmission sound input from the microphone 61 or an external speaker microphone is applied to the transmission sound input sensing unit 21 and the transmission sound delay unit 10.
As a result, the transmission voice input sensing unit 21 senses that the transmission voice has been input, and notifies the mode setting unit 80 that the transmission voice has been input.

The mode setting unit 80 that has received the notification that the transmission voice has been input controls the PTT signal generation unit 40 to generate a PTT signal and output it to the radio interface unit 50.
Then, when the mode setting unit 80 receives a notification that the response signal of the PTT signal has been received from the reception voice input sensing unit 100, the mode setting unit 80 confirms that the radio is operating in the transmission mode, and the radio transceiver for radio Set the operation mode to transmission mode.

  The mode setting unit 80 set to the transmission mode controls the memory unit 90 to output the stored audio digital data. Thereafter, the transmission voice input to the transmission voice delay unit 10 is output to the radio interface unit 50.

  If the transmission sound is not applied even after a predetermined time has elapsed from the state of operating in the transmission mode, the mode setting unit 80 controls the transmission end alarm sound generation unit 41 to transmit the transmission end alarm sound to the wireless device. After switching to the standby mode. Then, the mode setting unit 80 switched to the standby mode controls the PTT signal generation unit 42 to stop the generation of the PTT signal.

Next, let us examine the case of operating in the reception mode.
When the reception voice is input by the radio interface unit 50, the reception voice input detection unit 100 detects this and notifies the mode setting unit 80 that the reception voice has been input.

  The mode setting unit 80 that has received the notification that the reception voice has been input sets the reception mode, controls the PTT signal generation unit 42 so as not to generate the PTT signal, and controls and stores the memory unit 90. The transmitted audio is not output.

  At the same time, the received audio input by the radio interface unit 50 is output as audio by the speaker 62 of the user interface unit 60 or an external speaker microphone attached to the external speaker microphone terminal 63.

  As described above, the radio transceiver apparatus according to the present invention immediately detects when a voice to be transmitted is input, generates and outputs a PTT signal, and the transmitted voice has a predetermined time delay. Output.

  Therefore, the wireless audio transmission / reception apparatus generates the PTT signal first, and then the transmission audio is output, thereby preventing development in which part of the user audio is lost.

  Although the foregoing has been described with reference to the preferred embodiments of the present invention, those skilled in the art will recognize that without departing from the spirit and scope of the present invention as set forth in the appended utility model claims, Various modifications and changes can be made to the present invention.

It is a figure which shows the audio | voice transmission / reception apparatus for radio | wireless machines by a prior art, and a radio | wireless machine using the same. 1 is a configuration diagram of a radio transceiver device according to a first embodiment of the present invention; FIG. It is a block diagram of the audio | voice transmission / reception apparatus for radio | wireless machines by 2nd Example of this invention.

Explanation of symbols

11: Transmission voice buffer 12: AD converter 13: Memory unit 14: DA converter 15: Signal amplification unit 21: Transmission voice input sensing unit 22: Reception voice input sensing unit 30: Mode setting unit 41: Transmission end alarm sound generation unit 42 : PTT signal generation unit 80: Mode setting unit 90: Memory unit 100: Received voice input sensing unit

Claims (7)

A transmission voice delay unit that delays and outputs the transmission voice;
A control unit that generates a PTT signal when the transmission voice is input and does not generate the PTT signal when a reception voice is input;
A voice input sensing unit for sensing whether the transmission voice and the reception voice can be input;
An audio transmission / reception apparatus for a radio device comprising: The transmission voice delay unit is
An AD converter for converting the transmission voice into digital data;
A memory unit for outputting the digital data of the AD converter after being stored for a predetermined time; and
A DA converter that converts the digital data in the memory unit into analog audio;
The radio | wireless audio | voice transmission / reception apparatus of Claim 1 characterized by the above-mentioned. The controller is
When the transmission voice is input, the transmission mode is set. When the reception voice is input, the reception mode is set. When the reception voice is input during the transmission mode, the transmission mode is set. A mode setting unit for switching to the reception mode;
A transmission signal processing unit that generates a PTT signal when the transmission mode is set, and that does not generate a PTT signal after generating a transmission end warning sound when the transmission mode is canceled;
The radio | wireless audio | voice transmission / reception apparatus of Claim 1 characterized by the above-mentioned. When a transmission voice is input, a PTT signal is generated, and when a response signal to the PTT signal is received from a destination wireless device, a transmission mode is set. When a reception voice is input, a reception mode is set and a PTT signal is generated. Not control part,
A transmission voice delay unit that delays and outputs the transmission voice during the transmission mode;
A voice input sensing unit for sensing whether the transmission voice and the reception voice can be input;
An audio transmission / reception apparatus for a radio device comprising: The transmission voice delay unit is
An AD converter for converting the transmission voice into digital data;
A memory unit for storing the digital data of the AD converter for a predetermined time, and outputting the digital data stored under the control of the control unit;
A DA converter that converts the digital data in the memory unit into analog audio;
The radio | wireless audio | voice transmission / reception apparatus of Claim 4 characterized by the above-mentioned. The controller is
When the transmission voice is input, the PTT signal is generated, and then when the response signal to the PTT signal is received, the transmission mode is set. When the reception voice is input, the reception mode is set. A mode setting unit that switches the transmission mode to the reception mode when the reception voice is input in the transmission mode;
A transmission signal processing unit that generates a PTT signal when the transmission mode is set, and generates a transmission end warning sound when the transmission mode is canceled and then does not generate a PTT signal;
The radio | wireless audio | voice transmission / reception apparatus of Claim 4 characterized by the above-mentioned. The voice input sensing unit is
A transmission voice input sensing unit that senses the input of the transmission voice and notifies the mode setting unit;
A received voice input sensing unit that senses input of a response signal to the received voice and the PTT signal and notifies the mode setting unit;
The radio | wireless audio | voice transmission / reception apparatus of Claim 4 characterized by the above-mentioned.

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