KR200255617Y1 - Wireless FM Transmitter with Sound Card in use USB Port - Google Patents

Abstract

The present invention relates to an RF (wireless) transmission device with a built-in USB (USB) connection sound card

According to the present invention, it is connected to the universal serial bus (hereinafter referred to as USB) port 150 of the computer, and converts the digital signal, which is sound data, into an analog signal (250) to obtain a sound signal, and converts the sound signal into an RF (wireless) signal. It is a device that can be converted and transmitted (200) to be able to listen to the surrounding radio or audio, and used in general computers and notebook computers. It is very simple to install and remove as a separate device, and because it is a compact device, it can be conveniently carried even when moving, and interfaces between the USB device 150 and the USB device 150 that control the computer 100 and peripheral devices. A device for controlling the data to be converted, and converting a digital signal into an analog signal (250), and converting a signal converted into an analog signal into an RF (wireless) signal and transmitting (200) a device and a receiving device capable of receiving a wireless signal. It is structured to be able to listen to FM radio which is 300.

This device is equipped with a general computer sound card function so that users do not need to purchase and install a separate sound card.

Description

RF (wireless) transmitter with built-in USB (USB) connection sound card {Wireless FM Transmitter with Sound Card in use USB Port}

The present invention converts a computer's data signal into an analog signal sound signal, converts the sound signal into an RF signal, and transmits a radio transmission device for a computer. Relates to a device.

Detailed technical interpretation is that the frequency of the multimedia function of the computer 100 and the frequency of using the multimedia function is increasing more and more, the sound card disappears inside the computer 100, the computer by providing a space to secure additional option cards In order to increase the utilization of the use, the USB port which is used as a data transmission device of the computer 100 is used a fast transmission and receive a lot of data, the improved sound signal through the conversion of clean digital data to an analog signal in the device of the present invention It is a device for satisfying the thrill and realism of the sound through the home radio or the speaker of the audio that is the receiver 300 in the wireless transmitter 200.

The device of the present invention can be used to secure the card space of the computer hardware in terms of the interior and user environment of the computer 100, the width of the TV card or graphics card can be used in the computer 100, the computer 100 according to the user's preferences It can be used to transmit sound wirelessly, it is designed to be able to listen to the general FM broadcast receiver (radio), so that additional devices such as speakers and amplifiers required for listening to the sound of the conventional computer 100 are not required. It is designed to be possible without.

The present invention is a field of electronic products, and when data is transmitted through a USB port, it converts a digital signal into an analog signal and converts computer sound, which is an analog signal, into an RF (wireless) signal and transmits the signal.

The detailed technical interpretation is based on the CODEC technology, which acts as a sound card, and the wireless communication transmission technology that converts sound signals into RF (wireless) signals, and the inventive device based on the stereo transmission technology among the wireless communication transmission technologies. Has been applied for high quality RF (wireless) sound transmission.

1 is a view showing a configuration required for using the device of the present invention according to one embodiment of the present invention.

Figure 2 is a block diagram of the subject innovation device shown in Figure 1;

3 is an electronic circuit configuration diagram of the configuration diagram of FIG. 2;

<Description of the reference numerals for the main parts of the drawings>

21.Interface part 22.CODEC

23. Power supply section 24. Sound input section

25. RF (wireless) signal converter 26. Channel control

27. Antenna unit 100. Computer / laptop computer

150. Sound card 200. The unit

250. Sound card 300. Receiver

According to the inventive device, there is provided a transmission device for converting sound data into a device in which the sound card 250 is connected to the USB port of the computer 100 and transmitting the sound signal as a wireless signal.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

2 shows an RF (wireless) transmitting device with a built-in UBS connection sound card according to the present invention, the power supply unit 23 of the present invention is used to receive power from the computer 100, each computer ( 100) is equipped with a USB port that can be connected to an external device when the computer is manufactured, and the power supply is configured to use DC 5.0 volts.

As the software connection unit 21 for recognizing the device, the device can be connected to the computer 100 to be used, the installation can be easily installed by anyone according to the installation method instructions of the computer 100 It is supposed to be.

As a software device 22 for converting a digital source input from the computer 100 into an analog signal, it serves as a sound card 250 in the device.

It plays the technical part of converting a clean source of digital into an analog signal close to the original sound.

As the sound input unit 24 of the device of the present invention, the sound signal generated by the CODEC 22 is converted to a range before the conversion to an RF (wireless) signal, and the stereo sound signal is lost to add a sense of sound. Function to transfer to the next step without

The sound signal introduced from the sound input unit 24 is converted into a wireless signal through the RF (wireless) signal conversion unit 25 and can be transmitted to a long distance through the antenna 27. The RF (wireless) conversion technology applied to this device is based on “FM frequency modulation technology”, and “PLL type channel change method” technology is applied to enable multiple frequency channels to prevent crosstalk.

The signal flowing through the RF (wireless) signal converter 25 may be wirelessly transmitted to the far distance through the antenna 27. In order to transmit without loss from the RF (wireless) signal conversion unit 25, the antenna 27 is introduced into the antenna unit 27 through 50 ohm impedance matching and transmitted through the wire-type antenna.

The effect of the present invention is to replace the sound card inside the computer 100, the speaker space for the computer in the computer use space that was required for listening to the sound is unnecessary, and more efficient use of the free space. By securing the slots inside the computer, you can add slots of other options, reducing the cost of the computer by eliminating the need for computer speakers, amplifiers, and sound cards, which are required to increase the functionality of the computer and to listen to computer sound. To implement and provide a computer (100) sound RF (wireless) transmission device useful in terms of economical

[Overall expected effect]

As described in the above spatial and economic effects range, it can help the computer 100 user's functions and environment more efficiently, and can feel more thrilling and realistic in terms of utilization of the multimedia function (mainly sound function) of the computer 100. have. In particular, the present invention based on the RF (wireless) method can be installed without a connection line, there is no additional installation cost.

Claims (2)

RF that modulates / demodulates the digital sound signal from the desk or notebook computer 100, and transmits the sound signal modulated by the modulation / demodulation to the audio 300 as a wireless signal so that the audio can be heard through the audio. As a transmission device, an interface unit 21 connected to a USB port 150 of a computer, a digital / analog converter 22 for receiving a signal input from a computer through the interface and converting the signal into an analog signal and the digital / analog conversion Built-in USB (USB) connected sound card, characterized in that it comprises a wireless signal conversion unit 25 for converting the analog signal converted in the unit 22 to wireless and transmits the wireless signal as audio through the antenna 27. One RF (wireless) transmitter. According to claim 1, MP3, CD-Player, DVD, small TV which is a sound output from the computer 100 and the external mounting device for the purpose of providing convenience and characteristics to the wireless transmitter 200 with a built-in sound card It is applied to the back, and can be listened to by a headset, and includes a mute function having a temporary stop function and a display window for displaying the sound level, and can be mounted and used on various character dolls, and different frequencies according to each region can be used. RF (wireless) transmitter with built-in USB (USB) connected sound card, characterized in that it is equipped with a frequency regulator for adjustment.