KR20160141960A - System and method for radio broadcasting using dtmf data - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting system and a broadcasting method capable of selectively selecting a broadcasting receiver using a DTMF signal.
A wireless broadcast system using DTMF data according to the present invention includes a broadcast transmitter for transmitting a broadcast signal and a key input signal to one or more broadcast receivers, a broadcast transmitter for receiving the broadcast signal and a key input signal, The broadcast receiver compares the key input signal with a predetermined ID setting value to determine whether the broadcast signal is output.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and a method for wireless broadcasting using DTMF data,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting system and a broadcasting method capable of selectively selecting a broadcasting receiver using a DTMF signal.

Generally speaking, outdoor speakers such as forests, mountains, and beaches are used for warning or announcement. Wireless loudspeakers are widely used in recent years because of difficulty in installation or deterioration of natural scenery when connecting such a speaker with a cable.

However, there is a problem that the broadcasting system which has been utilized until now can only broadcast the entire broadcasting system regardless of the receivers. In some cases, there may be a need to broadcast only to a specific group of receivers or different broadcasts to different groups of receivers. However, there is a problem that conventional broadcast systems only provide a whole broadcast.

Korean Patent Application Publication 10-2011-0089122 (Aug. 4, 2011)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a broadcasting system and a broadcasting method capable of separately selecting and broadcasting broadcasting receivers.

The above object of the present invention can be achieved by a broadcast receiver comprising a broadcast transmitter for transmitting a broadcast signal and a key input signal to one or more broadcast receivers and one or more broadcast receivers for receiving the broadcast signal and a key input signal to output the broadcast signal, And the broadcast receiver compares the key input signal with a predetermined ID setting value to determine whether the broadcast signal is output or not. The present invention provides a radio broadcasting system using DTMF data.

According to a preferred aspect of the present invention, the broadcasting transmitter of the wireless broadcasting system using the DTMF data includes a control keyboard for receiving a user input, and a key input unit for inputting a DTMF (Dual Tone Multiple Frequency) And a DTMF processing unit for generating a signal.

According to another preferred aspect of the present invention, the user input may include an ID identification number and a broadcast control command for a broadcast receiver.

According to another preferred aspect of the present invention, the broadcast receiver further includes a binary decoder for converting the key input signal into binary data, a binary data comparing unit for comparing the binary data and the ID setting value, And a broadcast signal processor for outputting the broadcast signal when the ID data and the ID set value are matched.

According to another preferred aspect of the present invention, the broadcast receiver further includes an ID setting switch for setting the ID setting value, and the ID setting switch may be a DIP switch.

According to another preferred feature of the present invention, at least some of the one or more receivers may have the same ID setting value.

According to another preferred aspect of the present invention, the broadcast signal may include at least one of audio, video, and image signals.

According to another aspect of the present invention, there is provided a method for transmitting a broadcast signal and a key input signal to a broadcast receiver, the method comprising: transmitting a broadcast signal and a key input signal to at least one broadcast receiver by a broadcast transmitter; And outputting the broadcast signal by comparing the predetermined ID setting value with a predetermined ID setting value.

According to a preferred feature of the present invention, the method may further comprise receiving user input via a control keyboard and generating the key input signal in DTMF format based on the received user input.

According to another preferred aspect of the present invention, the user input may include an ID identification number and a broadcast control command for a broadcast receiver.

According to another preferred aspect of the present invention, the step of comparing the key input signal with a predetermined ID setting value and outputting the broadcast signal includes: converting the key input signal into binary data by a binary decoder Comparing the binary data and the ID setting value, and outputting the broadcasting signal when the binary data and the ID setting value are matched.

According to another preferred aspect of the present invention, the ID set value may be input through a DIP switch.

According to another preferred feature of the present invention, at least some of the one or more receivers may have the same ID setting value.

According to another preferred aspect of the present invention, the broadcasting signal may include at least one of audio, video, and image signals.

According to the wireless broadcasting system and method using DTMF data according to the present invention, group broadcasting or individual broadcasting is possible by grouping each receiver using DTMF, and the user interface is more convenient.

1 is a block diagram of a wireless broadcasting system using DTMF data according to an embodiment of the present invention;
2 is a configuration diagram of a broadcast transmitter 10 according to an embodiment of the present invention.
3 is an exemplary configuration diagram of a control keyboard 11 according to an embodiment of the present invention.
4 is an exemplary circuit diagram of a broadcast transmitter 10 in accordance with an embodiment of the present invention.
5 is a block diagram of a broadcast receiver 20 according to an embodiment of the present invention.
6 is an exemplary circuit diagram of a broadcast receiver 20 according to an embodiment of the present invention.
7 is a flowchart of a wireless broadcasting method using DTMF data according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything. In describing various embodiments of the present invention, the same reference numerals are used for components having the same technical characteristics.

1 is a configuration diagram of a wireless broadcasting system using DTMF data according to an embodiment of the present invention. Referring to FIG. 1, a wireless broadcasting system 1000 using DTMF data includes a broadcast transmitter 10 and one or more broadcast receivers 20. The broadcast transmitter 10 and the broadcast receiver 20 may be connected to be able to communicate via the network 1. [ Also, the network 1 may comprise a wireless or wired network. For example, the wireless broadcast signal may include, but is not limited to, signals in the 50 Hz to 60 Hz or 2 kHz frequency bands.

The broadcast transmitter 10 can partly or wholly select one or more broadcast receivers 20 based on user input and broadcast the same.

To this end, the broadcast transmitter 10 may transmit a broadcast signal and a key input signal to one or more broadcast receivers 20. That is, the broadcasting receiver 20 can transmit a broadcasting signal to be broadcast and a key input signal for discriminating part or all of the broadcasting receiver 20.

FIG. 2 is a configuration diagram of a broadcast transmitter 10 according to an embodiment of the present invention, and FIG. 3 is an exemplary configuration diagram of a control keyboard 11. As shown in FIG. 2, the broadcast transmitter 10 includes a control keyboard 11, a DTMF processing unit 12, and a communication unit 13.

The control keyboard 11 may receive a user input for determining a broadcast receiver 20 to be broadcast. 3, the control keyboard may be a keypad composed of four rows (R1-R4) and three columns (C1-C3), but the present invention is not limited thereto. The control keyboard 11 may be a physical button or a virtual button .

In addition, the user input may include an ID identification number for the broadcast receiver and a broadcast control command. When one or more broadcasting receivers 20 have respective ID setting values, the user can select the broadcasting receiver 20 by inputting the ID identification numbers corresponding to the ID setting values in the control keypad. Then, broadcasting can be started or terminated using a broadcasting control command.

For example, in the case of broadcasting to the broadcasting receiver 20 of No. 05, No. 98, 0, 5, * are sequentially input, and 9, 8, * are sequentially input to start broadcasting to the receiver No. 05, No. 98 . Thereafter, when it is desired to perform another broadcast to the broadcast receiver # 0 # 97, the user can enter the new broadcast receiver selection mode by pressing #. After selecting another broadcast, 0, 6, * can be sequentially input, and 9, 7, * can be sequentially input to start broadcasting for No.

In addition, when it is desired to collectively select the entire broadcastable broadcast receiver 20, a predetermined number (for example, the number here may be an identification number that does not correspond to the ID setting value of any one of the broadcast receivers) .

Here, the number is an ID identification number, the symbol (*) is a broadcast control command, and the present invention is not limited to these numbers and symbols, and a broadcast receiver can be selected and controlled through various user interfaces.

The DTMF processor 12 may generate a DTMF (Dual Tone Multiple Frequency) key input signal based on user input. That is, the key input signal may be in DTMF format.

4 is an exemplary circuit diagram of a broadcast transmitter 10 according to an embodiment of the present invention. In Fig. 4, reference numerals R1-R4 and C1-C3 may correspond to reference numerals R1-R4 and C1-C3 in Fig.

One or more broadcast receivers 20 can receive a broadcast signal and a key input signal and output a broadcast signal. For example, the broadcast receiver 20 may compare a key input signal (e.g., an ID identification number and a control command) with a predetermined ID setting value to determine whether a broadcast signal is output, and selectively output a broadcast signal.

The predetermined ID setting value may be input and stored by the user as a unique identification number for identifying each of the broadcast receivers 20.

5 is a block diagram of a broadcast receiver 20 according to an embodiment of the present invention. 5, the broadcast receiver 20 includes a communication unit 21, a binary decoder 22, a data comparison unit 23, and a broadcast processing unit 24. The output unit 25 or the ID setting switch 26).

The communication unit 21 can receive a broadcast signal and a key input signal through the network 1. [ As described above, the key input signal may include an ID setting value for identifying the broadcast receiver 20 and a control command.

5, the key input signal S1 and the broadcast signal S2 received by the communication unit 21 branch to the binary decoder 22 and the broadcast signal processing unit 24, respectively.

The binary decoder 22 can convert the key input signal S1 into binary data and transmit the binary data to the data comparison unit 23. [ The binary data comparing unit 23 compares the binary data and predetermined ID setting values and transmits the comparison result to the broadcast signal processing unit 24. [

The broadcast signal processing unit 24 can output a broadcast signal when the binary data and the ID set value are matched. The broadcast signal processing unit 24 blocks the broadcast signal S2 when the binary data and the ID setting value are not the same or when the binary data is not inputted. However, when the binary data and the ID set value are matched, the broadcast signal processing unit 24 can open the signal so that the broadcast signal S2 is transmitted to the output unit 25. [

Here, the ID setting value set in the data comparing unit may be a two-digit signal, but is not limited thereto.

Further, in order to set an ID setting value for identifying each broadcast receiver, the broadcast receiver 20 may further include an ID setting switch 26. [ Here, the ID setting switch 26 may be a DIP switch, and 8 pins are suitable, but not limited thereto.

On the other hand, at least some of the one or more broadcast receivers 20 may have the same ID setting value. In this case, the user can execute the same broadcast for a specific group of broadcast receivers 20 by inputting one ID setting value.

In one embodiment of the present invention, the broadcast signal may include one or more of audio, video, and image signals. To this end, the output unit 25 of the broadcast receiver 20 may include at least one of a speaker and a display device. In addition, the broadcasting signal processing unit 24 may further include a signal amplifying unit for smooth output of the broadcasting signal.

6 is an exemplary circuit diagram of a broadcast receiver 20 according to an embodiment of the present invention. Referring to FIG. 6, the data comparison unit 23 and the broadcast signal processing unit 24 are shown integrated into one MCU.

7 is a flowchart of a wireless broadcasting method using DTMF data according to an embodiment of the present invention. The wireless broadcasting method using DTMF data can be implemented by the elements of the wireless broadcasting apparatus using the DTMF data.

Referring to FIG. 7, a wireless broadcasting method using DTMF data includes transmitting a broadcasting signal and a key input signal to one or more broadcasting receivers (S100) by a broadcasting transmitter, and transmitting a broadcasting signal and a key input signal And comparing the key input signal with a predetermined ID setting value, and outputting a broadcasting signal (S200).

The wireless broadcasting method using DTMF data may further include receiving a user input through a control keyboard and generating a DTMF type key input signal based on the received user input.

Here, the user input may include an ID identification number for a broadcast receiver and a broadcast control command.

A step S200 of comparing a key input signal with a preset ID setting value and outputting a broadcast signal includes a step of converting a key input signal into binary data by a binary decoder, And outputting a broadcast signal when the binary data and the ID set value are matched.

Here, the ID setting value may be input through the DIP switch and set, but is not limited thereto. Also, at least some of the one or more broadcast receivers may have the same ID setting value. Accordingly, a broadcast receiver of a specific group can output the same broadcast according to one control command.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10: Broadcast transmitter
11: Control keyboard
12: DTMF processor
13, 21: communication section
20: Broadcast receiver
22: binary decoder
23:
24: Broadcast signal processor
25: Output section
26: ID setting switch

Claims (14)

A broadcast transmitter for transmitting a broadcast signal and a key input signal to one or more broadcast receivers; And
And a broadcasting receiver for receiving the broadcasting signal and the key input signal and outputting the broadcasting signal, wherein the broadcasting receiver compares the key input signal with a predetermined ID setting value to determine whether the broadcasting signal is output Wherein the DTMF data includes at least one of the following: The method according to claim 1,
Wherein the broadcast transmitter comprises a control keyboard for receiving user input and a DTMF processor for generating the key input signal in a DTMF (Dual Tone Multiple Frequency) format based on the received user input. Wireless broadcasting system. The method of claim 2,
Wherein the user input comprises an ID identification number and a broadcast control command for a broadcast receiver. The method according to claim 1 or 2,
Wherein the broadcasting receiver comprises: a binary decoder for converting the key input signal into binary data; a binary data comparing unit for comparing the binary data and the ID setting value; And outputting the broadcast signal if the broadcast signal is a broadcast signal. The method of claim 4,
Wherein the broadcast receiver further comprises an ID setting switch for setting the ID setting value, wherein the ID setting switch is a DIP switch. The method according to claim 1,
Wherein at least some of the one or more receivers have the same ID set value. The method according to claim 1,
Wherein the broadcast signal includes at least one of audio, video, and image signals. Transmitting, by a broadcast transmitter, a broadcast signal and a key input signal to one or more broadcast receivers; And
Receiving a broadcasting signal and a key input signal by a broadcast receiver, comparing the key input signal with a predetermined ID setting value, and outputting the broadcasting signal. The method of claim 8,
Receiving a user input via a control keyboard, and generating the key input signal in a DTMF format based on the received user input. The method of claim 9,
Wherein the user input comprises an ID identification number and a broadcast control command for a broadcast receiver. The method according to claim 8 or 9,
The step of comparing the key input signal with a preset ID setting value and outputting the broadcasting signal may include the steps of converting the key input signal into binary data by a binary decoder, And outputting the broadcast signal when the binary data and the ID setting value are matched with each other. The method of claim 11,
Wherein the ID setting value is set via the DIP switch. The method of claim 8,
Wherein at least some of the one or more receivers have the same ID set value. The method of claim 8,
Wherein the broadcast signal includes one or more of audio, video, and image signals.

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