Transceiver having transmission and reception control function using voice and control method thereo

专利摘要:
PURPOSE: A transceiver having a transmitting and receiving control function using a voice and a control method therefor are provided to be adapted to the change of peripheral situation and detect an input voice by adjusting a detection reference level of the input voice by a multi-stage. CONSTITUTION: An amplifying unit(18) detects a voice signal inputted through a microphone(16) and amplifies the detected voice signal. An A/D converter(20) converts the voice signal amplified through the amplifying unit(18) into a digital voice signal. A control unit(30) controls a transmitting and receiving mode of a transmitting and receiving circuit(12) according to a voice level value of the digital voice signal provided from the A/D converter(20) in a voice recognition mode for controlling the transmission and reception of an RF(Radio Frequency) as a voice.
公开号:KR20030013723A
申请号:KR1020010047891
申请日:2001-08-09
公开日:2003-02-15
发明作者:이종은
申请人:(주)맥스트라이콤；
IPC主号:

专利说明:

Radio with transmission and reception control function using voice and its control method {TRANSCEIVER HAVING TRANSMISSION AND RECEPTION CONTROL FUNCTION USING VOICE AND CONTROL METHOD THEREOF}
[10] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transceiver, and more particularly, to a radio having a transmission / reception control function using a voice for automatically switching a transmission mode and a reception mode according to a voice input, and a control method thereof.
[11] Traditionally, transceivers use push-to-talk (PTT) switches to switch between transmit and receive modes. Therefore, in order to use the radio, it was necessary to take the hassle of repeatedly operating the PTT switch, and in particular, it was difficult to use the radio in the situation where both hands were to be used.
[12] To solve this problem, a Voice Operating Transmitter (VOX), which is a device for automatically switching a transmission mode and a reception mode according to a voice input, has been provided. As a technology related to VOX, Korean Patent Publication No. 94-10548 (published May 26, 1994) discloses an automatic transmission frequency transmitting device of a radio. The radio disclosed in No. 94-10548 enables radio transmission when the voice signal input into the microphone is equal to or greater than the reference signal.
[13] However, the radio of the 94-105448 compares the audio signal input to the microphone with a fixed reference signal and detects the voice input, and thus it is difficult to react sensitively to the surrounding situation. For example, if the noise around the radio is high, a transmission operation may be mistaken as a voice input, and if a voice having a lower level than the reference signal is input, the transmission may not be performed.
[14] Accordingly, an object of the present invention is proposed to solve the above-mentioned problems, and it is possible to adjust the detection reference level of the input voice in multiple stages so that the input / receive control function using voice capable of detecting the input voice by adapting to changes in the surrounding conditions. It provides a radio having a and a control method thereof.
[1] 1 is a circuit block diagram showing an overall circuit configuration of a radio according to a preferred embodiment of the present invention;
[2] 2 is a flowchart sequentially illustrating a process of automatically controlling a transmission / reception mode of a transceiver according to an exemplary embodiment of the present invention.
[3] * Description of the symbols for the main parts of the drawings *
[4] 10: antenna 12: transceiver circuit
[5] 14: speaker 16: microphone
[6] 18: amplification unit 20: A / D converter
[7] 22: key input 24: PTT switch
[8] 30: control unit 32: transmission and reception mode control program
[9] 34: detection reference level value table
[15] According to an aspect of the present invention for achieving the object of the present invention as described above, a radio having a transceiver for transmitting and receiving radio frequency through an antenna amplification unit for detecting and amplifying a voice signal input through the microphone; An A / D converter for converting an audio signal amplified by the amplifier into an analog signal to a digital signal; And a controller configured to control a transmission / reception mode of the transmission / reception circuit according to the speech level value of the digitally converted speech signal provided from the A / D converter in the speech recognition mode for controlling transmission / reception of radio frequency to speech.
[16] In a preferred embodiment of the present invention, the control unit has at least two or more detection reference level values for setting the voice recognition sensitivity, and any one of the detection reference level values and the voice level value of the digitally converted voice signal Compare.
[17] In a preferred embodiment of the present invention, a voice recognition mode setting key for instructing the control unit to set / cancel the voice recognition mode; And a key input unit including a voice recognition sensitivity setting key for designating any one of the detection reference level values.
[18] According to another aspect of the present invention for achieving the object of the present invention as described above, the control method of the radio having a transmission and reception control function using the voice comprises the steps of detecting a voice signal input through the microphone; Converting the detected voice signal from an analog signal into a digital signal; Comparing the digitally converted voice level value with a set detection reference level value; When the digitally converted voice level value is lower than the detection reference level value, setting the transceiver circuit of the radio to a reception mode; If the digitally converted voice level value is higher than the detection reference level value, setting a transceiver mode of the radio to a transmission mode.
[19] In a preferred embodiment of the present invention, the method further includes a voice recognition sensitivity setting step of setting any one of at least two detection reference level values as a comparison value for comparing with the voice level value of the digitally converted voice signal.
[20] The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited by the embodiments described below. This embodiment is provided to explain more clearly the present invention to those skilled in the art.
[21] (Example)
[22] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[23] The novel radio of the present invention converts the input voice into a digital signal to measure the level of the input voice, and when the input level is higher than the set reference level, the transceiver automatically switches from the reception mode to the transmission mode to automatically transmit the input voice to radio frequency. To be sent.
[24] 1 is a circuit block diagram showing an overall circuit configuration of a radio according to a preferred embodiment of the present invention.
[25] Referring to the drawings, the radio of the present invention is a circuit configuration provided in a conventional radio, and the transceiver circuit 12 for transmitting and receiving radio frequency through the antenna 10 and the speaker 14 for outputting a voice connected thereto; A microphone 16 for receiving a sound force is provided. An amplifying unit 18 connected to the microphone 16, an A / D converter 20 connected to the amplifying unit 18, a key input unit 22 including a plurality of keys for operating various functions of the radio, PPT switch 24 for manually controlling the transmission and reception mode and the control unit 30 for controlling the overall radio. Although not shown in the drawings, a liquid crystal display for displaying the operating state of the radio, a power supply for providing the operating power of the radio, and the like are configured.
[26] The amplifier 18 detects an audio signal input through the microphone 16 and amplifies and outputs a gain of approximately 20 dB. The amplified voice signal is input to the A / D converter 20, converted from an analog signal to a digital signal, and input to the controller 30.
[27] The controller 30 may be configured as a microprocessor having a nonvolatile memory and a volatile memory, and may include an A / D converter. The control unit 30 has a transmission / reception mode control program 32 mounted thereon, and is provided with at least two detection reference level values 34 for detecting input voice. In this embodiment, the detection reference level value 34 is divided into five levels, and each level value is shown in Table 1 below.
[28] levelVoltage VOX Level 10.2 Vvms VOX Level 20.4 Vvms VOX Level 30.6 Vvms VOX Level 40.8 Vvms VOX Level 51.0 Vvms
[29] The controller 30 has a voice recognition mode for controlling the transmission and reception of radio frequency by voice, and when the voice input is detected in the voice recognition mode, the controller 30 operates the transmission / reception circuit 12 in the transmission mode to transmit the voice signal at the radio frequency. . If the voice input is not detected, the transceiver 12 is operated in a reception mode.
[30] The controller 30 detects a voice input by comparing the voice level value of the digitally converted voice signal input through the A / D converter 20 with any one of the detection reference level values 34. For example, when the detection reference level is set to VOX level 1, when the voltage level of the input voice signal is 0.2 Vvms or more, it is determined as a voice input and the transmission / reception circuit 12 is operated in the transmission mode. When set to VOX level 1, it is sensitive to small voice input.
[31] The voltage level is increased step by step from VOX level 1 to VOX level 5. In the case of VOX level 5, when the input voice voltage level is 1.0Vvms or more, it is judged as a voice input. In this case, only the voice input close to the microphone is input when the environment is very noisy.
[32] The key input unit 22 includes a plurality of input keys, for example, a voice recognition mode setting key for instructing setting / cancellation of the voice recognition mode, and a voice recognition for designating any one of the detection reference level values 34. The sensitivity setting key is configured. And input keys for controlling various operations of the radio, for example, frequency up / down, frequency auto scan, and the like.
[33] Subsequently, an automatic transmission / reception mode of a radio transceiver according to a preferred embodiment of the present invention will be described with reference to FIG. 2.
[34] Referring to the drawing, it is determined whether the voice recognition mode is in step S10, and in the voice recognition mode, the voice signal input through the microphone 16 in step S12 is detected and amplified by the amplifying unit 18 and then A / D converter. It is inputted by (20). In step S14, the A / D converter 20 converts the audio signal from an analog signal into a digital signal and inputs it to the controller 30.
[35] In step S16, the controller 16 compares the digitally converted voice level value with the set detection reference level value 34. If the digitally converted voice level value is lower than the detection reference level value, the flow advances to step S20 to set the transmission / reception circuit 12 to the reception mode. However, if the digitally converted voice level value is higher than the detection reference level value, the flow advances to step S18 to determine whether the current transmission / reception circuit 12 is set to the reception mode. Set (12) to the transmission mode.
[36] As such, when the input voice signal is input higher than the detection reference level value, the transmission / reception circuit is automatically switched to the transmission mode, so that the input voice signal is transmitted at a radio frequency without the operation of a separate PTT switch 24. The transmission mode setting of the transmission / reception circuit 12 controls a switch circuit (not shown) for supplying power to a transmission end (not shown), so that the power is applied to the transmission end by turning on the switch circuit.
[37] As described above, the configuration and operation of a radio having a transmission / reception control function using voice according to a preferred embodiment of the present invention and a control method thereof are shown according to the above description and drawings, but this is merely described as an example and the present invention. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the invention.
[38] According to the present invention as described above, when the radio operates in the voice recognition mode, the transceiver is automatically switched to the transmission mode or the reception mode according to the voltage level of the input voice signal, so that the radio can be conveniently operated without a separate operation of the PTT switch. Can be used. In particular, it is possible to set a detection reference level value for voice detection according to the noise level of the surrounding environment, thereby improving voice recognition sensitivity and preventing malfunction.

权利要求:
Claims (5)
[1" claim-type="Currently amended] In a radio having a transceiver for transmitting and receiving radio frequency through an antenna:
An amplifier for detecting and amplifying a voice signal input through a microphone;
An A / D converter for converting an audio signal amplified by the amplifier into an analog signal to a digital signal; And
In the voice recognition mode for controlling the transmission and reception of the radio frequency to the voice, characterized in that it comprises a control unit for controlling the transmission and reception mode of the transmission and reception circuit according to the voice level value of the digitally converted voice signal provided from the A / D converter Radio with transmission and reception control using voice.
[2" claim-type="Currently amended] The method of claim 1,
The control unit has at least two detection reference level values for setting the speech recognition sensitivity, and compares any one of the detection reference level values with the voice level value of the digitally converted voice signal. Radio with transmission and reception control.
[3" claim-type="Currently amended] The method of claim 2,
A voice recognition mode setting key for instructing the control unit to set / terminate the voice recognition mode; And
And a key input unit including a voice recognition sensitivity setting key for designating any one of the detection reference level values.
[4" claim-type="Currently amended] A control method of a radio having a transmission / reception control function using voice:
Detecting a voice signal input through a microphone;
Converting the detected voice signal from an analog signal into a digital signal;
Comparing the digitally converted voice level value with a set detection reference level value;
When the digitally converted voice level value is lower than the detection reference level value, setting the transceiver circuit of the radio to a reception mode;
And when the digitally converted voice level value is higher than the detection reference level value, setting the transceiver's transmission / reception circuit to a transmission mode.
[5" claim-type="Currently amended] The method of claim 4, wherein
Transmitting and receiving a radio using a voice, characterized in that it further comprises a voice recognition sensitivity setting step of setting any one value of at least two detection reference level value as a comparison value for comparison with the voice level value of the digitally converted voice signal. Control method.

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同族专利:

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2001-08-09|Application filed by (주)맥스트라이콤

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2001-08-09|Priority to KR1020010047891A

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2003-02-15|Publication of KR20030013723A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020010047891A|KR20030013723A|2001-08-09|2001-08-09|Transceiver having transmission and reception control function using voice and control method thereof|