KR100191285B1 - Portable device to insert character - Google Patents

Abstract

The present invention relates to a portable subtitle device for displaying a selected lyrics on a liquid crystal display while using a portable music player and wirelessly transmitting a background screen including the lyrics to be viewed through a separate video device. According to the data, the address signal, the read / write signal, the data signal, and the enable signal are respectively input from the input microprocessor, and the segment signal is output to the liquid crystal panel by the subtitle data signal corresponding to the lyrics of the selected song. In addition to displaying the text, the subtitle data corresponding to the lyrics and the image data of the background are input from the microprocessor, and the color signal is processed to synchronize with the video input signal input from the outside. External video transmitter by wireless transmission By outputting through the device, you can selectively view the contents of the lyrics and the background image of the external video signal and the internal video signal.

Description

Portable subtitler

1 is a block diagram showing the configuration of the control means and the liquid crystal display means of the present invention.

2 is a block diagram showing the configuration of a video signal output means of the present invention.

* Explanation of symbols for main parts of the drawings

1: microprocessor 7,8: liquid crystal drive unit

10: RGB driver 17: sync signal separator

20: RGB Encoder 23: Video Modulator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable subtitle device. In particular, in using a portable music player, which is a separate device, the selected lyrics are displayed on a liquid crystal display and a wireless signal is transmitted by wirelessly transmitting a composite signal of a background image and a video signal corresponding to the lyrics. It relates to a portable subtitler that allows you to watch the wallpaper, lyrics and voice through the video device of.

As is well known, the music player is also called karaoke, and when the user selects the desired music, the accompaniment of the music is output. When the user sings using a microphone, the accompaniment sound and the lyrics of the song are recorded. By mixing the output, the user can enjoy it.

In Korean Patent Application Nos. 93-8476 and 93-27504, a portable music player is proposed, which allows the music player to be carried and used, which includes accompaniment of many songs in a built-in ROM. If the user selects the number of the desired song from the information stored in the ROM, the information corresponding to the accompaniment of the song is output wirelessly to be input to the antenna of the general audio device to listen to the accompaniment sound through the speaker.

However, the conventional portable music player as described above is to use the lyrics of a lot of songs contained in the ROM to use a separate booklet, if the user does not know the lyrics of the song if the song does not have a booklet is recorded There was a disadvantage of not being able to sing.

In addition, it connects a general video player to a music player used in karaoke, so as to receive a video signal corresponding to the background screen, and corresponds to the lyrics along with information corresponding to the accompaniment of the song in memory such as a ROM built into the music player. The video and audio signal can be output through the monitor and speaker.

However, the above-described music player includes the background and lyrics of the screen through the monitor while storing both the information of the accompaniment of the song and the information of the characters corresponding to the lyrics, as well as the information of the video signal that is the background of the screen. Displaying the video signal and outputting the accompaniment of the song and the user's voice through the speaker, the configuration of the circuit is complicated, and due to the large volume of equipment due to the monitor and the speaker has a disadvantage that it is impossible to carry.

Accordingly, the present invention is to solve the problems of the conventional music player is selected by the microprocessor of the main body receiving the data of the portable music player is a separate device for outputting the accompaniment sound stored in the ROM according to the user's option It is an object of the present invention to provide a portable subtitler which displays the lyrics on a liquid crystal display and simultaneously transmits the text together with a background screen for viewing through a separate video device.

The present invention for achieving the above object is a microprocessor for controlling the overall operation for displaying the subtitle by analyzing the system data signal received from the main controller of the portable music player as a separate device with the system clock, A buffer for selectively outputting a read / write, a ROM selection signal and a video data processing read / write signal by an address signal, a memory request signal, an input / output strobe signal, and a read / write signal output from the microprocessor; Program memory which outputs data signal about control order and method of microprocessor when ROM input signal and read signal are received through buffer and directly receive address signal from microprocessor, ROM selection through buffer Signal and read / write An SRAM that receives a call and simultaneously receives an address signal and a data signal from the microprocessor, or outputs a stored data signal to the microprocessor; and a ROM selection signal and a read signal through the buffer. When the address signal is directly input from the microprocessor, a plurality of ROMs output data signals of the subtitles or backgrounds corresponding to the stored lyrics, and the lyrics of the songs output from the ROM under the control of the microprocessor. When the data signal of the corresponding subtitle is inputted, a plurality of liquid crystal driver for displaying lyrics through the liquid crystal panel and the data signal of the background image from the microprocessor are received, and the video data processing write / write through the buffer. Receive read signal An RGB driver for processing color signals of planes R, G, and B, and a plurality of outputting video data signals of information according to the state of the stored screen when the write signal and the address signal are received from the RGB driver. VCO outputs the oscillation frequency of the RGB driver by controlling the operating power for synchronizing the video when the video RAM and the horizontal synchronizing signal output from the RGB driver are input through the one short IC capable of retriggering. Controlled Oscillator) and the reference frequency by the resistor, capacitor, diode and variable resistor and the phase of the video input signal input from the outside, the horizontal synchronization signal which is the reference signal of the VCO, the vertical signal which is the video RAM selection signal of the RGB driver. Through a sync signal and a retriggerable one-short IC A synchronous signal separator for outputting a synchronous signal, and the output of the retriggerable one-short IC and the luminance signal from the RGB driver are logically multiplied to switch the video input signal of an external video device and the internal video signal stored in the ROM. A NAND gate for outputting a switching signal and a color signal of R, G, B from the RGB driver together with the switching signal are input, and a video input signal is input from an external image reproducing device. An RGB encoder for outputting a video signal of a background including matching subtitles, two retriggerable one-shot ICs connected in series as input signals to the RGB encoder as a synchronization signal for the composite synchronization signal output from the RGB driver, It receives the video output signal from the above RGB encoder and uses the frequency of 66.75 ~ 67.75㎑ generated from the sawtooth filter It is a video modulator that carries a carrier and a low frequency signal of the video output from the video modulator through the oscillating transformer to be output through the antenna through a plurality of oscillation amplifier consisting of a transistor and an oscillation coil. When the user operates the portable subtitle device of the present invention while using the portable music player, which is a separate device, the user can display the lyrics through the liquid crystal display and simultaneously view the background screen including the lyrics through a separate video device such as a TV. To be.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a control unit and a liquid crystal display unit according to an embodiment of the present invention. The system clock signal is converted from the main controller of a portable music player, which is a separate device not shown in the drawing. When received with the SCLK, the microprocessor 1 controls the overall operation for displaying the subtitles, the address signals A2, A18, and A19 outputted from the microprocessor 1, and the memory request signal. Read signal (RD), write signal (WR) and ROM select signal (ROM1), (ROM2), (ROM3), by MREQ), input / output strobe signal (IOSTB), and read / write signal (RD / WR). A ROM 2 and a buffer 2 for selectively outputting a video data processing write signal VDPW / read signal VDPR, and a ROM select signal ROM1 and a read signal RD through the buffer 2. Input from the microprocessor (1) A program memory 3 for outputting data signals D0 to D7 relating to the control sequence and method of the microprocessor 1 when the dress signals A0 to A14 are directly input, and the buffer 2 described above. The ROM selection signal ROM2, the read signal RD and the write signal WR are input through the address signal A0 to A12 and the data signal D0 to the microprocessor 1. SRAM (4) directly receiving and storing D7) or outputting the stored data signals (D0) to (D7) to the microprocessor (1), and the ROM selection signal (ROM3) (ROM4) through the buffer (2). ) And the read signal RD, and simultaneously receive the address signals A0 to A18 from the microprocessor 1, the data signal D0 of the video that is the subtitle or background corresponding to the stored lyrics. A plurality of ROMs 5 and 6 which respectively output ˜ (D7) and the ROMs 5 under the control of the microprocessor 1, Comprising a plurality of liquid crystal drive unit (7), (8) for receiving the data signal (DB0) ~ (DB7) corresponding to the lyrics of the song output from (6) to display the lyrics through the liquid crystal panel (9) .

2 shows the configuration of the video signal output means of the present invention. The data signal D0 to D7 and the address signals A0 and A1 of the background image from the microprocessor 1 are shown. When receiving the video data processing write signal (VDPW) and read signal (VDPR) through the buffer (2) at the same time, RGB for processing the color signals (R), (G), (B) of R, G, and B When the write signal WR, the RAS signal RAS, the CAS signal CAS0, the CAS1, and the address signals VA0 to VA7 are received from the driver 10 and the RGB driver 10, the stored signal is stored. A plurality of video RAMs 11, 12, 13, and 14 which output video data signals VA0 to VA7 of information according to the state of the screen, and the RGB driver 10 described above. When the horizontal synchronizing signal (H-SYNC) outputted from the input signal is input through the re-triggerable one short IC 15, the operation power for synchronizing the image is controlled to control the RG. Voltage controlled oscillator (VCO) 16 output at oscillation frequency of B driver 10, resistors R1, R2, capacitors C1, C2, diode D, and variable resistor VR The reference frequency of 15.784 kHz and the phase of the video input signal (VIDEO-IN) input from the outside are compared to the horizontal synchronization signal (H-SYNC), which is the reference signal of the VCO 16, of the RGB driver 10. The vertical synchronization signal V-SYNC, which is a video RAM selection signal VDS, and the synchronization signal SYNC, which is a video input signal VIDEO-IN of the microprocessor 1, are retriggered through the one-shot IC 18 that can be retriggered. An external video input signal (VIDEO) is obtained by logically multiplying each of the synchronous signal separators 17 to be output, the output of the retriggerable one-shot IC 18 and the luminance signal YS from the RGB driver 10. A NAND gate 19 for outputting a switching signal YSP-IN for selectively switching IN and an internal video signal, and the switching signal Y SP-IN) and the R, G, and B color signals R, G, and B from the RGB driver 10 together with the external image reproducing apparatus not shown in the drawing. An RGB encoder 20 that receives a video input signal VIDEO-IN and outputs a video output signal VIDEO-OUT of a background including a subtitle having a synchronization, and the RGB encoder 10 of the RGB driver 10. 20) The two retriggerable one-shot ICs 21 connected in series are inputted to the RGB encoder 20 as a synchronization signal with respect to an external video input signal VIDEO-IN. (22) and a video modulator that receives a video output signal (VIDEO-OUT) from the RGB encoder 20 and carries it on a carrier having a frequency of 66.75 to 67.75 kHz generated from the sawtooth filter 24 ( 23 and a low frequency signal of the video output from the video modulator 23 through the oscillation transformer 25. The antenna is input through the plurality of oscillation amplifiers 26, 27, 28 consisting of transistors Q1, Q2, Q3 and oscillation coils CO1, CO2, and CO3. It consists of amplifying units output through (29).

The portable subtitle device of the present invention configured as described above is used to view a screen that is lyrics and a background while a user sings using a portable music player, which is a separate device. When the number of is selected, the main controller of the present invention outputs the audio signal corresponding to the accompaniment sound or the accompaniment sound of the selected song to the outside through the speaker, and the system data signal SDATA and the system clock SCLK according to the present invention. The microprocessor 1 outputs the same, and analyzes it in the input microprocessor 1 to control the overall operation for displaying the subtitles to display the lyrics on the liquid crystal panel 9 and wirelessly through the antenna 29. It outputs the lyrics and the background image to a separate video device such as a monitor by sending it out.

A buffer 2 receiving an address signal A2, A18, A19, a memory request signal MREQ, an input / output strobe signal IOSTB, and a read / write signal RD / WR from the microprocessor 1. Selectively outputs read signal (RD), write signal (WR), ROM select signals (ROM1), (ROM2), (ROM3), (ROM4) and video data processing write signal (VDPW) and read signal (VDPR) To control the operations of the program memory 3, the SRAM 4, the ROM 5, and 6;

In the program memory 3 which receives the ROM selection signal ROM1 and the read signal RD from the microprocessor 1 through the buffer 2 and directly receives the address signals A0 to A14, the microprocessor Data signals D0 to D7 relating to the control procedure and method of (1) are output.

The microprocessor 1 receives the ROM selection signal ROM2, the read signal RD and the write signal WR through the buffer 2, and at the same time, the address signals A0 to A12 and the data signal D0. In the SRAM 4 which directly receives ˜ (D7), information according to an operation is stored or the stored information is output as the data signals D0 to D7.

The microprocessor 1 receives the ROM selection signals ROM3 and ROM4 and the read signal RD through the buffer 2 and simultaneously receives a plurality of ROMs directly receiving the address signals A0 to A18. 5) and (6) selectively output data signals D0 to D7 of the caption corresponding to the stored lyrics or the video as the background, respectively.

The microprocessor 1 receives a plurality of address signals A0, read / write signals RD / WR, data signals DB0 to DB7, enable signals E1, and E2, respectively. In the liquid crystal drive unit 7 or 8, the segment signal is transmitted to the liquid crystal panel 9 by the data signals D0 to D7 of the video corresponding to the lyrics of the song output from the ROMs 5 and 6. It displays (SEG0) ~ (SEG60) and displays lyrics.

Video data processing is performed through the buffer 2 while receiving data signals D0 to D7 and address signals A0 and A1 of an image which is a subtitle or a background from the microprocessor 1. The RGB driver 10 receiving the write signal VDPW / read signal VDPR processes the color signals R, G, and B of the R, G, and B signals, thereby writing the write signal WR and the RAS signal ( RAS), CAS signals CAS0, CAS1, and address signals VA0 through VA7 are output to the video RAMs 11, 12, 13, and 14, and stored in the state of the screen. Video data signals VA0 to VA7 of the corresponding information are received.

The VCO 16 receiving the horizontal sync signal H-SYNC outputted from the RGB driver 10 through the one-shot IC 15 capable of retriggering controls the operating power for synchronizing the video signal. The oscillation frequency of the RGB driver 10 is output.

In the sync signal separator 17 composed of resistors R1, R2, capacitor C1, C2, diode D, and variable resistor VR to generate a reference frequency of 15.784 kHz, an external input is performed. The horizontal synchronization signal H-SYNC, which is a reference signal of the VCO 16, and the vertical synchronization signal VDS, which is a video RAM selection signal VDS of the RGB driver 10, may be compared with a video input signal VIDEO-IN. V-SYNC) and a retriggerable one-shot IC 18 respectively output a synchronization signal SYNC that is a video input signal VIDEO-IN of the microprocessor 1.

In the NAND gate 19 which receives the output of the retriggerable one-shot IC 18 and the luminance signal YS from the RGB driver 10, the external video input signal VIDEO-IN And a switching signal (YSP-IN) for selecting and switching the internal video signal.

The external image not shown in the figure while receiving the color signals R, G, and B of the R, G, and B signals from the RGB driver 10 together with the switching signal YSP-IN. The RGB encoder 20 which receives a video input signal VIDEO-IN from a playback device outputs a video output signal VIDEO-OUT of a background including subtitles whose signals are synchronized.

Here, the one-shot ICs 21 and 22 capable of receiving and retriggering the composite sync signal C-SYNC outputted from the RGB driver 10 may delay 2 sync pulses to external the RGB encoder 20. Input a synchronization signal for the video input signal (VIDEO-IN).

The external image not shown in the figure while receiving the color signals R, G, and B of the R, G, and B signals from the RGB driver 10 together with the switching signal YSP-IN. The RGB encoder 20 which receives a video input signal VIDEO-IN from a playback device outputs a video output signal VIDEO-OUT of a background including subtitles whose signals are synchronized.

In the video modulator 23 which receives the video output signal VIDEO-OUT from the RGB encoder 20, the video low frequency carries this on a carrier having a frequency of 66.75 to 67.75 kHz generated from the sawtooth filter 24. Output as a signal.

The oscillation amplifiers 26, 27, 28 receive the low frequency signals of the video output from the video modulator 23 through the oscillation transformer 25, and the transistors Q1, Q2, Q3. ) And through the oscillation coil (CO1), (CO2), (CO3) to compensate for the loss occurring during the wireless transmission and output through the antenna 29 to view the lyrics and background through a separate video device To be.

Therefore, when the portable subtitle device of the present invention receives the system data signal from the main controller of the portable music player as a separate device together with the system clock, the user can play the portable music while controlling the overall operation for displaying the subtitles in the internal microprocessor. While the device is in use, the liquid crystal display may display lyrics and at the same time output the background screen including the lyrics through the antenna to be viewed through a separate video device.

Claims (1)

When the system data signal is input from the main controller of a separate portable music player together with the system clock, a microprocessor that controls the prerequisite operation for displaying subtitles, temporarily stores the data signal in SRAM, In a portable subtitle device for reading the data signal of the video corresponding to the subtitle or background to display the lyrics on the liquid crystal panel, the RGB driver for processing the color signals of R, G, B under the control of the microprocessor of the display means, Operation for synchronizing with a plurality of video RAMs outputting video data signals of information according to the state of the screen stored under the control of the RGB driver to the RGB driver, and a horizontal synchronizing signal output from the RGB driver. VCO to control the power and output at the oscillation frequency A synchronization signal separator for outputting a horizontal synchronization signal, a vertical synchronization signal, and a synchronization signal by comparing the reference frequency and the phase of a video signal input from the outside, and a switching signal, a color signal of R, G, and B, and a video input signal. An RGB encoder that outputs a video signal of a background including subtitles with synchronized synchronization, a video modulator that receives a video output signal from the RGB encoder and loads the video output signal on a carrier of a predetermined frequency and is output from the video modulator. A portable subtitle device, characterized in that it consists of amplifiers that carry low-frequency signals of video and output them through an antenna.