KR20040047032A - Wireless TV encorder set top box - Google Patents

Abstract

PURPOSE: A wireless TV encoder settop box is provided to convert RGB image signals and voice signals of a computer into wireless analog signals, and to wirelessly transmit the wireless analog signals, then to output the analog signals to outer devices, thereby reproducing voice and image data of the computer in real time through a wireless TV encoder. CONSTITUTION: RGB signals(5) of a computer are converted into analog signals through a video decoder DAC(10). The RGB signals(5) are transformed into analog data through the video decoder DAC(10), and the analog data is transmitted to a video transmitter(20). An audio signal(7) of the computer is amplified through an audio amplifier(15), and is transmitted to sub-carrier transmitters(30,31) in stereo type. Transmitted voice and image signals are amplified through a frequency amplifier(35), and are operated by a CPU(45) and a PLL(43). The operated signals are transmitted to a VCO(40), are filtered in a transmission filter(50), and are transmitted to a transmission antenna(55).

Description

Wireless TV encoder set top box {Wireless TV encorder set top box}

The present invention relates to a wireless RF TV encoder device, and more particularly to a device for wirelessly connecting a TV encoder and a computer.

In the case of a conventional wired TV encoder, when the length of the wire becomes longer, the image quality is deteriorated. In the case of the TV encoder for presentation, the problem of positioning due to the length of the wire and the deterioration of the image due to the length are caused.

The present invention is a combination of a TV encoder and a wireless transceiver to compensate for the above-mentioned drawbacks by connecting a computer or laptop and a TV encoder transmitter and a general TV or screen (projector), multi-vision and receiver to wirelessly operate the TV encoder function Its purpose is to carry out. In order to achieve the above object, the present invention provides a video decoder for converting a computer RGB signal into a general analog video channel, a wireless transmitter for wirelessly transmitting a decoded video / audio signal, and a wireless receiver for receiving transmitted wireless data. Receiving unit, characterized in that it comprises a transmission unit for sending the received data back to the TV, screen, multi-vision.

1 is a representation of the overall invention,

Figure 2 is a block diagram showing an embodiment of a wireless transmission method using a wireless RF carrier to the RGB image / audio signal of a computer,

3 is a block diagram showing an example of a method of receiving and outputting a wireless carrier using a wireless RF carrier;

(Explanation of symbols for the main parts of the drawing)

(5) computer's RGB signal (7) computer's audio input signal

(10) Video Decoder (DAC) (15) Audio Amplification (20) Video Transmitter

(30) subcarrier transmitter (audio right) (31) subcarrier receiver (audio left) (32) video receiver (33) subcarrier receiver (audio right)

(34) Subcarrier receiver (outside audio) (35) Frequency amplification (37) Signal amplification

(40) VCO (send) (42) VCO (receive) (43) PLL (send) (44) PLL (receive)

(45) CPU (send) (46) CPU (receive) (50) Send filter (52) Receive filter

(55) Transmission Antennas (56) Reception Antennas (60) TVs (62) Speakers

Preferred embodiments of the present invention for achieving the above object are as follows. Fig. 2 is a block diagram of a device for converting a computer RGB signal into an analog signal through a video decoder and transmitting it back to a wireless RF carrier and receiving the computer's RGB signal 5 as analog data through the video decoder DAC 10. The transformed and transformed data is sent to the video transmitter 20 and the computer's audio signal (7) is amplified via audio amplification (15) and then to the subcarrier transmitters 30, 31 (each left and right audio signal) in stereo format. Is sent. The sent audio and video signals are amplified through frequency amplification 35, computed by the CPU 45 and PLL 43 circuits, then passed to the VCO 40, filtered by the transmit filter 50, and then the transmit antennas 55 Is sent).

FIG. 2 is a block diagram of an embodiment of an apparatus for receiving and transmitting an analog wireless RF carrier to a general TV, a projector, a multi-vision, etc., after receiving the signal of the same frequency through the receiving antenna 56 and then receiving the CPU 46 and the PLL. (44) The circuit is passed to the VCO 42 through operation. This is again passed to and separated from the video receiver 32 and the subcarrier receivers 33 and 34 (each audio signal left and right) to separate the video and audio signals. The amplified signals are amplified and transmitted to external TVs, projectors, and multi-visions.

As described above, the real-time reproduction of audio and video data of a computer can be achieved through a wireless TV encoder, and a TV encoder device can be realized that improves the problems of the conventional problem, that is, the positioning by the length of a wire and the deterioration of image quality. .

Claims (3)

A set-top box with a built-in wireless transmitter that converts RGB video signals and audio signals from a computer into wireless analog signals, and transmits them wirelessly to a computer. The set-top box of an encoder function according to claim 1, comprising a circuit for transmitting and receiving wirelessly. The wireless transmission processing configuration including the claims 1 and 2, the built-in PLL circuit and the built-in CPU circuit