KR100822725B1 - Portable walkie talkie - Google Patents

Abstract

A portable radio is provided to enable a user to set a mode for notifying of call reception as a mute sound in order to limit outputting of a calling sound through a speaker even though a call is received from the other party, thereby minimizing damage to another person caused by an unexpected speaker calling sound. A sound notifier(50) outputs a predetermined sound signal to a speaker(53). A mute sound notifier(60) notifies of a calling signal reception state received from the other party's radio. A calling alarm mode setup storage sets and stores operation modes of the mute sound notifier and the sound notifier for a calling signal. When the calling signal is received, a controller(40) decides on the set operation modes, operates the mute notifier as inactivating operation of the sound notifier if the set operation modes refer to mute operation modes, and controls the sound notifier so that a sound signal included in the calling signal is extracted and outputted to the speaker if the operation modes refer to sound operation modes.

Description

Portable walkie talkie {PORTABLE WALKIE TALKIE}

1 is a block diagram of a portable radio to which a reception notification device according to an embodiment of the present invention is applied;

2 is a control flowchart of a portable radio according to an embodiment of the present invention,

3 is a control flowchart of a portable radio according to another embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

10: duplexer 12: receiving amplifier

14 mixer 16 intermediate frequency signal processing unit

18: switch portion 20: local oscillation portion

22: CTCSS detector 24: transmit amplifier

26: PTT (Push To Talk) switch 28: Modulator

30: frequency oscillator 32: CTCSS generator

34: microphone 36: memory

38: key input unit 40: control unit

50: sound notification unit 51: audio filter

52: audio amplifier 53: speaker

60: silent notification unit 61: vibration motor drive unit

62: vibration motor 63: LED drive unit

64: LED 65: LCD driver

66: LCD

The present invention relates to a portable radio, and more particularly, to a portable radio for notifying a call reception state in various ways according to a user's selection.

In general, the radio is capable of transmitting signals in two directions between two communicating points. However, when a signal is sent from one point, only the signal can be received at another point. It uses a communication method of PTT (Push To Talk) function that needs to explicitly change the transmission direction by using.

In the case of the Family Radio Service (FRS), which is the most widely used among these PTT radios, the 27 MHz (vehicle use) or the ultra high frequency (UHF) in the 448 MHz or 462 MHz band allocated freely without paying a radio wave fee is used. It is mainly used, and its radio wave communication distance is within 3 km.

In the case of commercial radios, the frequency of ultra high frequency (VHF) or ultra high frequency (UHF) is to be paid for a certain amount, and the radio communication range is formed within 10 km to 20 km. But the cost is cheaper than cell phones.

In addition, such a living radio and a work radio (hereinafter referred to as "portable radios") have a smaller time difference between when a call is made by a sender and when a call is received by a receiver than a mobile phone. In other words, the mobile phone speaker on the receiving end can hear the caller's voice in a short time, for example, when a call is made by pressing a portable radio PTT on the calling side without having to make a call and ring a bell like a mobile phone.

As a result of the low cost and simplicity of use of the portable radio, the use population is increasing. However, when the portable radio is transmitted by pressing the PTT, the receiving end is immediately able to hear the corresponding voice. Therefore, when the user of the radio is used in a public place, the radio may be troubled due to the sound of the radio. That is, unexpected speaker sound may occur.

Of course, although the speaker volume can be set, the speaker sound cannot be completely removed to receive the call of the other party, so there is a problem in that the use in public places requiring quietness is limited.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to limit the speaker output sound when receiving a call signal from the other party's radio according to the user's selection and to receive the call by the light emission, display or vibration. It is to provide a portable radio to inform.

A sound notification unit for outputting a predetermined sound signal to the speaker, including a portable radio, a speaker for receiving a call signal containing a sound signal from the other party radio according to the present invention to achieve the above object; At least one of a vibration means including a vibration motor, a light emitting means including an LED, and a display means including an LCD, and a silent notification notifying a reception state of a call signal from a radio of the other party through the operation of the provided means. Wealth; A call notification mode setting storage unit configured to set and store an operation mode of the sound notification unit and the silent notification unit for the call signal of the counterpart radio; A mode switch key for switching the operation mode according to the call reception; When the call signal is received, the operation mode set in the call notification mode setting storage unit is determined. When the set operation mode is the silent operation mode, the operation of the sound notification unit is deactivated while the silent notification unit is operated. In the mode, the sound notification unit is controlled to extract the sound signal included in the received call signal and output the sound signal to the speaker, and when the user detects the operation of the mode switch key while operating the silence notification unit according to the silent operation mode, the call is called. And a controller configured to control the sound notification unit to extract the sound signal included in the signal and output the same to the speaker.

Hereinafter, a portable radio according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

As shown in FIG. 1, the portable radio according to the embodiment of the present invention includes a duplexer 10, a reception amplifier 12, a mixer 14, a local oscillator 20, and an intermediate frequency. Signal processor 16, CTCSS detector 22, switch 18, microphone 34, frequency oscillator 30, CTCSS generator 32, modulator 28, transmit amplifier 24, PTT (Push To Talk) switch 26, memory 36, key input unit 38, sound notification unit 50, silent notification unit 60, the control unit 40.

The duplexer 10 outputs the RF signal received from the antenna to the reception amplifier 12, and also transmits and transmits the RF signal transmitted from the transmission amplifier 24 to the antenna side.

The reception amplifier 12 amplifies the RF signal received through the duplexer 10, and the mixer 14 supplies the RF signal amplified by the reception amplifier 12 and the local oscillator 20. The local oscillation frequency is mixed and converted into an intermediate frequency signal. This conversion to the intermediate frequency signal is to increase the selectivity of the frequency.

The intermediate frequency signal processor 16 processes the intermediate frequency signal generated by the mixer 14 to extract an audio signal, and the sound notification unit 50 and the CTCSS detector 22 to describe the extracted audio signal later. To pass on.

The CTCSS detector 22 detects the CTCSS tone frequency from the audio signal extracted by the intermediate frequency signal processor 16 and informs the controller 40 of whether the tone frequency coincides with a preset tone frequency. This is to prevent the waste of power by outputting only the signal matching the preset tone frequency to the speaker 53.

The switch unit 18 performs on / off processing under the control of the control unit 40 to be described later that the audio signal processed through the intermediate frequency signal processing unit 16 is output to the sound notification unit 50. In this case, the switch unit 18 may be included in the sound notification unit 50 and provided at various positions.

Meanwhile, the frequency oscillator 30 synthesizes the audio signal of the user input from the microphone 34 with the CTCSS tone frequency generated from the CTCSS generator 32, and outputs the modulated signal 28 to the audio signal and the CTCSS. The modulated signal of tone frequency is modulated to a frequency that can be transmitted wirelessly and output.

The transmission amplifier 24 amplifies and transmits the modulated transmission frequency signal through the modulator 28 to the duplexer 10, and the user uses the switching function of the PTT switch 26 when transmitting. The transmit frequency signal is transmitted through the antenna.

The memory 36 stores various information necessary for the control of the controller 40 to be described later, such as a call notification mode for determining whether to notify the user silently or acoustically about the call upon receiving the call. ), SRAM (Static Random Access Memory), DRAM (Dynamic Random Access Memory) can be provided in various forms of memory, but is preferably provided as a non-volatile memory in which the stored information remains even when the power is cut off.

The key input unit 38 may be provided in the form of a button for correcting setting information stored in the memory 36 and inputting letters and numbers.

On the other hand, the sound notification unit 50 is a means for notifying the user to the sound when the call is received, for this purpose, the sound notification unit 50 in the signal processed by the intermediate frequency signal processor 16 An audio filter 51 for filtering a required band, an audio amplifier 52 for amplifying the audio filtered signal, and a speaker 53 for outputting the amplified audio signal may be provided.

The silent notification unit 60 is a means for silently notifying the user about the call upon receiving the call, and may be configured by at least one of vibration means and display means. Here, the vibration means may include a vibration motor 62 and a vibration motor driver 61 for driving the vibration motor 62, and the display means may include a display element and a display element driver for driving the display element. . The display element includes an LCD (Liquid Crystal Display) 66 capable of displaying information such as text and a light emitting diode (LED) 64 as a light emitting element, and the display element driver is an LED driver 63. And an LCD driver 65.

The control unit 40 notifies the user by controlling the sound notification unit 50 or the silent notification unit 60 in the case of a corresponding tone frequency according to the detection result of the CTCSS detector 22 upon receiving a call.

That is, the controller 40 reads the memory 36 when receiving a call and determines what call notification mode is set. Here, the call notification mode is a vibration mode for notifying call reception by driving the vibration motor 62, a light emitting mode for notifying call reception by driving the LED 64, and an LCD for notifying call reception by driving the LCD 66. A driving mode, a speaker mode for notifying call reception through the speaker 53, and a combination mode of at least two or more combinations of the vibration mode, the light emission mode, the LCD display mode, and the speaker mode may be illustrated.

When the notification mode stored in the memory 36 is the vibration mode, the control unit 40 turns off the switch unit 18 so that the output sound to the speaker is not heard, and then controls the vibration motor driving unit 61. The vibration motor driver 61 drives the vibration motor 62 to generate vibration. Although not shown, the controller 40 may include a timer to control the vibration motor 62 to be driven only for a predetermined time.

In addition, when the notification mode stored in the memory 36 is a light emitting mode, the control unit 40 turns off the switch unit 18 and then controls the LED driving unit 63. The LED driver 63 drives the LED 64 to emit light. At this time, the LED 64 may indicate the call reception status by blinking.

When the notification mode stored in the memory 36 is the LCD display mode, the control unit 40 controls the LCD driving unit 65 after turning off the switch unit 18. Accordingly, the LCD driver 65 drives the LCD 66 to display a predetermined letter indicating the call reception status.

Meanwhile, when the notification mode stored in the memory 36 is a combination mode, the controller 40 performs a function of a corresponding combination mode. For example, when the mode set in the memory 36 is a light emission / vibration mode in which both the light emission mode and the vibration mode are combined, the control unit 40 turns off the switch unit 18 and then the LED driver 63 and the LED driving unit 63. The vibration motor driving unit 61 is controlled, and the LED 64 and the vibration motor 62 are driven. Here, the controller 40 may control the LED 64 and the vibration motor 62 to be driven at the same time, and may be controlled to be sequentially driven.

In addition, when the notification mode stored in the memory 36 is a speaker mode, the controller 40 turns on the switch unit 18 to output a received signal to the speaker 53.

 Here, the controller may be configured to output the received signal directly to the speaker 53 when no mode is set in the memory 36 except for the speaker mode.

As described above, the mode in which the speaker mode is not included in the memory 36 is set so that the call reception state is notified through the silent notification unit 60, so that the control unit 40 controls the user's key. When the signal of the input unit 38 is detected, the switch unit 18 is controlled to output the received signal to the speaker 53. Accordingly, after the user is informed of the call reception state by the operation of the silent notification unit 60, by pressing a predetermined key of the key input unit 38, a signal corresponding to the call is immediately output to the speaker 53 so that the other party can hear the voice. You can communicate.

On the other hand, the portable radio according to another embodiment of the present invention may further include a text signal detection unit (not shown) for detecting whether the text is included in the received signal, the character is detected in the received signal as a result of the detection of the text signal detection unit; When included, the controller 40 may control the LCD driver 65 to display the transmitted text on the LCD 66 and to perform an operation according to the set call notification mode.

Hereinafter, a control flow of a portable radio according to an embodiment of the present invention will be described with reference to FIG. 2.

First, when the call signal from the other party's radio is received (S10), the controller 40 determines the call notification mode set in the memory 36 (S11).

When the call notification mode is set to the speaker 53 mode, the control unit 40 outputs the received signal to the speaker 53 (S26), and the call notification mode is not set to the speaker 53 mode and is silent. When the mode is set, the controller 40 controls the operation according to the corresponding mode. That is, the control unit 40 controls the vibration motor driver 61 in the vibration mode (S13) (S14) to generate vibration in accordance with the driving of the vibration motor 62 (S15), and in the light emission mode (S16). ) LED driver 63 to control (S17) LED 64 blinks (S18), LCD 66 display mode (S19) LCD driver 65 to control (S20) LCD (66) Characters are displayed on (S21).

In addition, in the light emission / vibration mode (S12), the controller 40 controls the vibration motor driver 61 and the LED driver 63 (S14, S17) to drive the vibration motor 62 and the LED 64 blinks. (S15, S18). Here, the driving of the vibration motor 62 and the blinking of the LED 64 may be made at the same time, or may be made sequentially.

The controller 40 initializes the timer (S22) and determines whether a predetermined key signal is received while driving the vibration motor 62, blinking the LED 64, and displaying the LCD 66 characters. (S23). Here, the key signal is a signal input by the user's operation of the key input unit 38, and is a signal of a key that the user can selectively press after recognizing the call reception state by the operation of the silent notification unit 60. If the key signal is not received, it is determined whether the key signal is continuously received for a predetermined time (S24, S23). If the key signal is not received for the predetermined time, the control unit 40 terminates.

When the key signal is received (S23), the controller 40 determines whether the speaker 53 mode is set (S25). If the determination result is that the speaker 53 mode is set, the control unit controls the switch unit 18 to output the received signal to the speaker 53 (S26), and as a result of the determination, the speaker 53 mode is not set. If it is terminated. The speaker mode determined in step S25 and the speaker mode determined in step S11 may be set / stored in another area of the memory 36.

In the present embodiment, only the combination of the vibration mode and the light emission mode is cited as the combination mode, but the combination is possible for each of the other possible modes.

Hereinafter, a control flow of a portable radio according to another embodiment of the present invention will be described with reference to FIG. 3.

First, when a call signal from the other party's radio is received (S30), the text signal detector (not shown) detects whether a text signal is included in the received signal (S31). When the detection result text signal is included in the received signal, the controller 40 controls the LCD driver 65 (S32) and displays the transmitted text on the LCD 66 (S33).

The control unit 40 determines whether the call notification mode is set (S34), and if it is determined that the call notification mode is not set, the controller 40 terminates the call notification mode.

If the call notification mode is set as a result of the determination (S34), the control unit 40 allows the operation according to the corresponding mode to be performed. That is, the controller controls the LED driver 63 when the call notification mode is the light emitting mode (S36) so that the LED 64 blinks (S38), and when the vibration mode is the vibration mode driver (S39). By controlling (61) (S40) to generate a vibration according to the drive of the vibration motor 62 (S41), in the light emitting / vibration mode (S35) LED driver 63 and the vibration motor driver 61 By controlling (S36 and S39), the vibration motor 62 is driven with the LED 64 blinking (S38 and S41). Here, the LED 64 blinks and the vibration motor 62 may be driven simultaneously or sequentially.

On the other hand, when the detection result text signal is not received in step S31 (S31) proceeds to step S11 of FIG. 2, which is the same as the above-described example and will not be described. Here, the call notification mode determined in step S34 may be stored and used in a different area of the memory than the call notification mode determined in step S11 of FIG. 2.

Although some embodiments of the invention have been shown and described, it will be apparent to those skilled in the art that modifications may be made to the embodiment without departing from the spirit or spirit of the invention. . It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

As described above, according to the present invention, when the radio is used in a public place, the user sets a mode to notify the user silently when the call is received, thereby limiting the output of the call sound through the speaker even when there is a call from the other party. Minimize damage to others due to speaker ringing. After being notified silently, speaker output can be made at the user's option, allowing immediate communication with the other party.

In addition, there is an effect that the user can select this if you do not want to notify the call reception status to others even if not in a public place.

Claims (4)

In a portable radio for receiving a call signal including a sound signal from the other radio, A sound notification unit including a speaker and outputting a predetermined sound signal to the speaker; At least one of a vibration means including a vibration motor, a light emitting means including an LED, and a display means including an LCD, and a silent notification notifying a reception state of a call signal from a radio of the other party through the operation of the provided means. Wealth; A call notification mode setting storage unit configured to set and store an operation mode of the sound notification unit and the silent notification unit for the call signal of the counterpart radio; A mode switch key for switching the operation mode according to the call reception; When the call signal is received, the operation mode set in the call notification mode setting storage unit is determined. When the set operation mode is the silent operation mode, the operation of the sound notification unit is deactivated while the silent notification unit is operated. In the mode, the sound notification unit is controlled to extract the sound signal included in the received call signal and output the sound signal to the speaker, and when the user detects the operation of the mode switch key while operating the silence notification unit according to the silent operation mode, the call is called. And a controller configured to control the sound notification unit to extract the sound signal included in the signal and output the same to the speaker. delete delete delete

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