KR200390525Y1 - The wireless microphones and wireless speakers include these control unit which is possible audio files to memorize - Google Patents

Abstract

The present invention relates to a wireless microphone, a wireless speaker and a control and storage device

It is intended for large classrooms, conference rooms or seminar rooms.

The device consists of a wireless microphone, a wireless speaker, and a control and storage device.

Each can be interconnected with each other via Bluetooth or RF wireless, and lectures, meetings and seminars

Configure and control contents in real time to control and storage

Can be saved or transferred to the external storage device such as PC

It is characterized by that.

As a result, a large number of users may have lectures, meetings, or

You can download the contents of the seminar contents to any external device.

It is very effective for future study and use of published materials.

Speakers are connected wirelessly so that presenters (lecturers) have no restrictions on their presentation

Has an effect.

Description

The wireless microphones and wireless speakers include these control unit which is possible audio files to memorize}

The present invention relates to a wireless microphone, a wireless speaker, and a control and storage device.

More specifically, microphones and speakers, and devices that control and store each device

Are connected wirelessly to each other, and voice or analog audio input from a microphone

In real time as the false signal is passed through the control and storage device to the speaker.

Files stored in the internal memory can be stored later.

To allow users to download as much as possible

It is about.

Typically, a lecturer (presenter) in a large classroom, conference room or seminar room

The presentation is usually done using wired microphones and speakers

There is a restriction on the activity of the lecturer.

In addition, the real-time storage of lectures (presentations) is the voice that the listener has

You can use a device such as a recorder, but it can be stored near the speaker.

You can't get clear sound unless you can.

And if you use a wireless microphone and wireless speakers,

Wirelessly connected speakers, not saved via real-time storage

It is simply sending the content of the lecture (presentation).

Therefore, a conventional microphone and speaker lecture, conference, or seminar system is usually

First, by wire or wireless, general RF transmission is adopted.

As it affects external noise, the output of voice can transmit and receive frequency.

There is a problem with all RF receiving speakers in one area.

Second, in the case of a fixed line, the microphone is a fixed line, limiting the lecturer's activity.

There is a difficulty in the installation process at the time of initial installation and in some cases installation costs

There is a problem such as an increase in ease.

Third, it is impossible to save the file of the contents of the lecture (presentation), and the lecturer (listening) lectures

If you want to save the voice content of the (presenter), use a device such as a voice recorder.

This is only possible in the near distance range.

Even if it is a chapter, you cannot guarantee the clean sound quality.

You can also save only when you lecture.

Therefore, the present invention has been devised to solve the above-mentioned conventional problems.

Bluetooth, speaker, and control and storage devices can be connected to each other

The link is connected wirelessly, and control and storage can be saved in the form of a voice file.

Its purpose is to make it possible.

As a technical configuration for achieving the above object, the present invention is an external analog

Inputting the log voice into the microphone, and controlling the input voice into the control and storage device.

Transmitting, saving as voice file, saving and transmitting to external speaker at the same time

It characterized in that the configuration including the step of outputting.

1 is an internal configuration and a process diagram of each device according to the present invention.

Lecturer's microphones include two types of Bluetooth microphones (2) and general RF microphones (3).

They can be selected and used by the lecturer if necessary.

It is driven by rechargeable batteries 23 and 31, which are connected via an external adapter.

Charging is possible.

In the audio codec 21 of the Bluetooth microphone 2, the lecturer's analog audio signal

Using Log Pulse Code Modulation (PCM) encoding or continuous gradient modulation.

Bluetooth turns it into a signal that can be delivered.

At this time, the audio codec 21 connects to an asynchronous disconnected channel of Bluetooth as needed.

Can be made of high quality using suitable compression techniques such as MP3.

In the Bluetooth 20 mounted on the Bluetooth microphone 2, the audio codec 21

The processed signal is controlled to a frequency of 2.4 GHz band using a synchronous access channel.

Transfer to Bluetooth 14 of storage 1.

In addition, the processor 22 controls an audio codec 21 process of the lecture microphone 2 and an audio signal transfer process of the Bluetooth 20.

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The RF transmitter 30 of the lecturer RF microphone 3 amplifies and filters the analog audio signal at a high frequency, and transmits the analog audio signal to the RF receiver 13 of the control and storage device 1 at a frequency of 100 to 300 MHz or more.

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In addition, the Bluetooth 14 of the control and storage device 1 receives the audio signal transmitted from the Bluetooth 20 of the lecturer Bluetooth microphone 2, retransmits to the Bluetooth 40 of the Bluetooth speaker 4, and transmits The receiving frequency is also in the 2.4 GHz band.

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At this time, the Bluetooth 14 of the control and storage device 1 becomes a higher master than the Bluetooth 20 and 40 mounted on the Bluetooth speaker 2 and the Bluetooth speaker 4 for the lecturer and the Bluetooth microphone 2 for the lecturer. And Bluetooth 20 and 40 mounted on the Bluetooth speaker 4 in a lower configuration.

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Therefore, the speaker's Bluetooth microphone (2) and Bluetooth speaker (4)

Transmission and reception are impossible without passing through the switch 14.

The audio codec 15 converts the voice signal received by the Bluetooth 14 and the voice signal input to the RF receiver 13 into a voice file capable of external storage, for example, an MP3 file.

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In addition, the processor 10 controls the external storage of the voice file, transmission and reception of audio signals, operation control of the device, and status display.

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The voice file converted through the audio codec 15 is designated by the display unit 12 and the control button / switch 11, and stored in the internal memory 16 with the designated file name, and the stored voice file is connected to the peripheral device connection unit. Through 17, files are transferred to an external device such as a PC 6 and an external memory 7.

Peripheral connector is configured to connect RS-232 serial port or USB.

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The RF receiver 13 receives the high frequency signal received from the lecturer RF microphone 3 or the lecturer RF microphone 5 and transmits the received RF signal to the audio codec 15.

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In addition, the Bluetooth 14 of the control and storage device 1 retransmits the audio signal to the Bluetooth 40 of the Bluetooth speaker 4, and the audio signal transmitted to the Bluetooth 40 is output according to the command of the processor 42. The codec 41 decodes an analog signal capable of external output.

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The decoded analog audio signal is amplified by the amplifier 43 and output to the outside.

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In addition, the attendant microphone (5) may be a number, not connected by the control and storage device 1 and Bluetooth 14, and has only the RF transmitter 50, the control and storage

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The RF receiver 13 of the tooth 1 is connected to the transmitter / receiver.

The operation is also the same as that of the lecturer RF microphone 3.

2 is a connection configuration diagram between each device according to the present invention.

The control and storage device (1), the speaker's Bluetooth microphone (2), and the Bluetooth speaker (4)

It consists of three synchronous connection links, and the Bluetooth 14 of the control and storage device 1

Become the above master.

In addition, each Bluetooth can be configured to have an automatic protocol connection upon power up.

Configure it so as not to make protocol connection.

Also, the file name of the voice file stored in the internal memory 16 of the control and storage device 1

Can be specified in the display unit 12 and the control button / switch 11 through the processor 10

Each process is input by the user through the display unit 12.

In addition, the voice file stored in the internal memory 16 can be deleted.

Control and apparatus of the wireless microphone and the wireless speaker according to the present invention as described above

Has the following effects:

First, the microphone and speaker also have one set of control and storage devices that interconnect them.

And other than one of these sets as connected via the Bluetooth's synchronous link.

There is a security advantage because it is not connected to the speaker device, and mixing of external signal

There is no problem.

Second, as all devices are connected wirelessly, the lecturer's activity is free.

Therefore, by removing all cables except power during the installation,

This is clean.

Third, the lecture contents are delivered through Bluetooth's audio delivery protocol.

Can be stored in the form of clean, sound-quality files, and also to an external storage device.

You can save as much as you want.

Therefore, even if not at the time of the lecture (presentation), the internal memory of the control and storage device

Saved files can be downloaded by multiple people at any time.

1 is an internal configuration and process processing diagram of each device according to the present invention

2 is a connection configuration diagram between each device according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: control and storage device 2: lecturer Bluetooth microphone

3: Lecturer RF microphone 4: Bluetooth speaker

5: RF microphone for students 6: PC

7: External memory

Claims (3)

The audio codec 21 can transmit the frequency of the analog voice input from the outside. Bluetooth My, which can transmit audio through Bluetooth 20, (2) and Receive the audio signal transmitted from the Bluetooth 20 to the Bluetooth 14, Retransmits the received audio signal to the Bluetooth 40 of the Bluetooth speaker 4, Decoded in the video codec 41, the audio output to the outside through the amplifier 43 is possible Control and storage equipment (1) The control and storage device (1) of claim 1, wherein the control and storage device (1) Save the audio signal received from the microphone (3) (5) to the internal memory (16) as a voice file The stored file can be connected to the PC 6 or the external memory through the peripheral device connector 17. (7) Download and control and storage for file name designation or deletion Device (1). The system of claim 1, wherein the Bluetooth 14 of the control and storage device 1 has a unique frequency. Using hopping, the Bluetooth 20 of the Bluetooth microphone 2 and the Bluetooth speaker 4 Synchronize the Bluetooth (40), and turn off the power of the previously memorized frequency Scan according to hopping and resynchronize Bluetooth 20 and Bluetooth 40 Control and storage (1)