KR100221366B1 - Karaoke system for a computer - Google Patents

Abstract

[Problem Solving Invention]

Conventional computer flexible board cycles have limitations in the use of video change technology, such as the inability to process video data so fast that the speed of image change is high. As the time until the video analog signal is output is delayed, it is difficult to obtain the effect of the image, and there is a problem that the resolution of the image cannot be increased and the change speed of the image cannot be increased.

[Solution Solution]

Solved by adopting the same technology as the invention.

Description

Computer flexible cycle

1 is a block diagram showing the configuration of a computer flexible board cycle according to an embodiment of the present invention.

2 is a detailed block diagram showing the configuration of an image processing apparatus unit in a computer flexible half cycle of the present invention.

Figure 3 is a detailed block diagram showing the configuration of the central processing unit in the computer flexible half cycle of the present invention.

4 is a flowchart showing an operating state of an image processing apparatus in a computer flexible board cycle of the present invention.

* Explanation of symbols for main parts of the drawings

1 central processing unit 2 subtitle signal processing unit

3: sound source device unit 10: central control unit

20: key input and output unit 30: remote control receiver

40: image processing unit 50: text / picture storage unit

60: sound source unit 70: audio device unit

80: data storage unit

The present invention relates to a computer flexible half cycle, and more particularly, to a method for controlling the speed of a computer flexible half cycle in which a change in image speed can be realized.

In general, the computer flexible panel cycle is produced by various technologies in various countries, but the technology is simple and various types of functions are not exhibited.

There is a limitation in using video change technology, such as not being able to speed up the speed of image change because the processing speed of image data is not fast, the resolution is low, and it is not practical in general. The time until the video analog signal is output from the video RAM Due to this delay, it is difficult to obtain the effect of the image, and it is impossible to increase the resolution of the image and to speed up the image change speed.

Therefore, the present invention describes various technical features and functions and effects by solving various problems of the conventional computer flexible board cycle.

1 is a block diagram showing the configuration of a computer flexible half cycle according to an embodiment of the present invention, a central processing unit (1) consisting of a central control unit 10, key input and output unit 20, remote control receiver 30 And a caption signal processing unit 2 composed of an image processing unit 40 and a text / picture storage unit 50, and a sound source unit 3 formed of a sound source unit 60 and an audio book 70. It is largely divided. In addition, the data storage unit 80 and the external musical instrument unit 90 is connected to the central control unit 10, the beat control device unit 100 is connected to the key input and output unit 20.

The power supply unit 110 supplies power to each device so that the image processing unit 40 reads the character code number sent from the central processing unit 1 and stores the corresponding data in the video RAM (FIG. 2, U6, U7) to calculate the position of the screen, and to display the characteristics and color of the character on the monitor (hereinafter referred to as "TV screen").

The central control unit 10 collects, analyzes and changes the data coming from the KEY input / output unit 20 to display the KEY input / output unit 20 again and reads the data from the data storage unit 80 during selection. It is converted into a standard MIDI signal and input to the MIDI input terminal of the sound source unit 60. When there is a lyrics signal that matches the sound of MIDI during performance, the data is converted according to the communication format of the image processing unit 40. When sent, the visible color of the subtitles rhythmically changes to match the beat of the music, so that the person who sings can sing along comfortably and easily, and the remote control receiver 30 is convenient for the user who is far from the main device during selection and operation of the system. The device can be operated, the remote control signal is detected and analyzed by the central control unit 10.

Since the data and song data are compressed in the data storage unit 80, the central control unit 10 receives the corresponding data from the data storage unit 80 and translates and operates the song data and the lyrics data.

The sound source unit 60 adopts a PCM (plus Code Modulation) method of sampling and storing various instrument sounds to be converted into a standard MIDI signal and reproducing the sound, and the audio device unit 70 reproduces the sound of the instrument close to the original sound. After converting the standard MIDI signal received from the sound source unit 60 into a digital waveform into an analog signal through a DAC (Digital To Convert) method, it is amplified by an amplifier and output through a speaker.

The text and picture storage unit 50 stores data in the form of letters displayed on the screen, and the image processing unit 40 detects and processes the pattern data of lyrics and pictures displayed in accordance with the progress of the song.

External musical instrument unit 90 has a function that can be played at the same time with the main unit by connecting to the percussion instrument, the standard MIDI signal data input through the performance of the external instrument is input to the central control unit 10, which is a sound source It is transmitted to the unit 60, and the sound source unit 60 reproduces the performance sound of the external instrument and sends it to the audio device unit 70 for low frequency amplification and output through the sputter.

External instruments are mainly used for percussion and add the rhythm of percussion to the notes from the main unit so that they can be played at the same time as the main unit.

Time control unit 100 can adjust the speed of the performance sound so that the person who sings can sing in the most comfortable state.

Hereinafter, the operation of the computer flexible accompaniment system of the present invention having the above configuration will be described in detail.

In FIG. 3, when the power is applied, the central control unit U28 initializes internal registers such as internal communication ports and other types of tails, and pre-processes the display unit and external device initialization operations of the key input / output unit 20 (U45).

The central control unit U28 periodically checks the KEY I / O unit U45 through the KEY I / O buffer unit U41, and the song number selected by the KEY I / O unit U41 indicates the FND drive unit U43. Numerical information is turned on through the above operation is performed regularly.

When music is selected by the KEY I / O buffer unit U41, the central control unit U28 selects the corresponding data through the expansion address selection unit U36 and U37, and decodes the data from the central control unit U28. If you transmit the signal to the sound source device at the speed of 31.25Khz, the sound source device converts the digital signal into an analog signal and then amplifies the low frequency and outputs it through the speaker.

In FIG. 2, the image processing control unit U1 generates a serial colck, generates a HSYNC signal from the synchronization signal generating unit U4, and generates a Compose Video Signal using this as a fundamental input signal of the image signal processing unit U23. The device unit U19 and the external image input unit U54 continuously select and compare the two external image input signals to supply the external image input signal in the fixed state in the remote mode in the image signal processing unit U23. .

The output of the VSTNC output from the image signal processing unit U23 is input to the address translation unit U10 and treated as a signal of a source for discriminating whether it is an odd field or an even field.

When the above operation is completed, the signal on the screen forms a linear circuit so that an external image appears on the screen. In the signal distribution unit U18, an address is selected from the image processing control unit U1 to generate a RAS signal. In U5, a CAS signal is generated based on this signal.

The video RAM device unit U6, U7 periodically receives and refreshes RAS and CAS signals generated from the signal distribution unit U18 and the address translation unit U5. The image processing control unit U1 receives the text and After reading the data of the FINT ROM (U16) and GRAPHIC ROM (U17) where the picture is stored, the data is processed in the DRAMs U13 and U14 and stored in the video RAM device units U6 and U7.

The address translation unit U5 continuously generates signals corresponding to one pixel of the screen, reads the pixels recorded in the video RAM device units U6 and U7, and converts the data of the pixels into the D / A converter unit U11. In order to send the information to the LOOKUP TABLE device unit U15, the corresponding position information of the video RAM device units U6 and U7 is compared and processed after the image processing control unit U1, and the D / A converter unit U11. In FIG. 5, pixel data is processed at twice the speed of the address translation unit U5, where three elements of red, green, and blue are output.

The output signal is input to the input terminal of the image signal processing unit U23, synthesized with the external image signal generated by the external image input unit U54, and then amplified by the current, and then input to the image input terminal of the TV. The caption information detected as is represented.

As described above, the image processing control unit U1 sequentially and inverses the address lines of the FONT RAM U16, GRAPHIC ROM U17 and CRAM U13, U14 in synchronization with the SYNC signal of the image signal processing unit U23. When the data is converted into red, exponential, multiple, and random numbers, and then the data are read, the read data is directly input to the D / A converter unit (U11) and converted into analog video signals. As a result, functions such as enlargement, reduction, scrolling, and rotation of the image can be realized, and the change speed of the image can be increased at high speed, and the resolution of the image can be increased.

Claims (1)

In a method capable of controlling the change of an image at high speed in a computer flexible half cycle, the image processing control unit U1 synchronizes with the video SYNC signal of the image signal processing unit U23 and uses the FONT RAM U16 and the GRAPHIC ROM ( U17) Converts the address lines of the video RAM device unit U6 and U7 into reciprocal, exponential, and sequential formats, reads them according to the SYNC signal of the video signal, and directly converts the image data to the D / A converter unit U11. The control method of the change speed of the image, characterized in that to give a video effect such as reduction, enlargement, rotation of the image.