KR20000011449U - A computer system having a function of outputting voice information when a keyboard is typed - Google Patents

Abstract

The computer system disclosed herein includes a keyboard device for generating a corresponding scan code when an external input key is selected and for transmitting the scan code as first data in synchronization with a clock signal, A PCI / ISA bridge controller for generating a sound activating signal, a HOST / PCI bridge controller, and a fourth controller for receiving the third data converted from the bridge controller, A sound controller for receiving the sound activation signal and determining whether the selected character key is in the Hangul mode or the English mode and outputting data corresponding thereto; , A sound date for the key selected by the sound controller A digital-to-analog converter for converting the analog signals into analog signals, and a speaker for outputting the analog signals as audio information.

Description

COMPUTER SYSTEM WITH VOICE INFORMATION OUTPUT FUNCTION AT KEYBOARD TYPING

The present invention relates to a computer system, and more particularly, to a computer system having a function of outputting voice information corresponding to each input board when a keyboard is input.

1 is a perspective view showing a general computer system.

Referring to FIG. 1, a general computer system having an audio function has a TTS (Text to Speech) function and outputs a word or a sentence to be input as voice information.

2 is a block diagram showing the configuration of a general computer system.

2, the computer system includes a keyboard 10, a keyboard controller 12, a PCI / ISA bridge controller 14, a host / PCI bridge controller 14, A HOST TO PCI bridge controller 16, a main memory (also referred to as a main memory or a chipset) 18, and a CPU 20.

The keyboard 10 transmits the data KBDATA generated in synchronization with the clock signal KBCLK to the keyboard controller 12 in a serial format. The keyboard controller 12 converts the data received from the keyboard 10 into 8-bit parallel data. The converted data is stored in a data register. When data is loaded into the data register, a keyboard interrupt (KBD INT) is generated and the CPU reads the scan code. The read scan code (data) is sent to SD0 to SD7 of the ISA bus. The data is transferred to the keyboard buffer on the main memory 18 via the PCI / ISA bridge controller 14. The data transferred to the keyboard buffer can be used by using the application soft interrupt 16H (INT 16H).

When the input system as described above is typed by only those who are not able to see the front or not at all in the typing mode, even if the characters are changed into English by mistake in key selection during the Hangul operation, There is a case.

The object of the present invention is to provide a computer system for outputting voice information to a blind person or a typing unskilled person at the time of typing in order to solve the above-mentioned problem.

1 is a block diagram showing a configuration of a general computer system;

2 is a block diagram illustrating a computer system in accordance with the prior art;

3 is a block diagram showing the configuration of a computer system according to the present invention; And

4 is a circuit diagram showing the D / A converter of Fig.

Description of the Related Art [0002]

100: keyboard 110: keyboard controller

120: PCI / ISA controller 130: Host / PCI controller

140: CPU 150: main memory

190: Sound controller 180: Speaker

According to an aspect of the present invention, a computer system generates a corresponding scan code when an input key is selected from outside, and transmits the scan code as first data in synchronization with a clock signal A keyboard device; A keyboard controller for receiving the first data serially transmitted from the keyboard device and transmitting the 8-bit second data in parallel; A PCI / ISA bridge controller for generating a sound activation signal; A HOST / PCI bridge controller; A main memory for receiving the converted third data from the PCI / ISA bridge controller and transmitting the fourth data; A sound controller for storing data for converting Korean and English characters into sound and receiving the sound activation signal to determine whether the selected character key is in Hangul mode or English mode and outputting data corresponding thereto; A digital-to-analog converter for converting sound data of a key selected by the sound controller into an analog signal; And a speaker for outputting the analog signal as audio information.

In a preferred embodiment of the present invention, the sound controller stores sound data for characters of both Korean and English in the same size (1 KB) and outputs sound data for the selected key.

In a preferred embodiment of the present invention, the computer system simultaneously outputs voice information for a selected character via the speaker when the keyboard is selected.

(Action)

According to such a design, uninitiated persons can listen to the voice information of the selected key by relying only on the keyboard without looking at the monitor

(Example)

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

3 is a block diagram showing a configuration of a computer system according to the present invention.

3, the computer system according to the present invention includes a keyboard 100, a keyboard controller 110, a PCI / ISA bridge controller 120, a HOST / PCI bridge controller 130, a CPU 140, a main memory 150, a sound controller 190, and a speaker 170.

In the keyboard input system, when a key on the keyboard is selected, a system scan code corresponding to the key selected from the keyboard unit is generated. A microprocessor is contained in the keyboard to check which key has been pressed. The code corresponding to the pressed key is found and transmitted to the computer. The transmitted code is called a system scan code.

Because the computer is not always waiting to receive data from the keyboard 100, it must store the data of the selected key until the computer is able to receive it, and a data buffer (not shown) need. The data buffer is operated in a first in first out (FIFO) manner in which data firstly received is first transmitted. If data is not sent to the computer until the data buffer is full, the data is lost. However, when the data starts to be transmitted and the buffer becomes empty, it is confirmed that the key is pressed and the data is stored again in the data buffer.

The system scan code stored in the data buffer is transmitted in a serial form to a computer. The computer has a dedicated chip for receiving a system scan code from the keyboard 100 and managing data to be sent to the keyboard, which is referred to as a keyboard controller 110. The keyboard controller 110 receives the system scan code transmitted from the keyboard 100.

First, when a key for Korean and English alphabetic keys is selected, a corresponding scan code is decoded and a sound corresponding to the scan code is output from a speaker in the computer every time English or Hangul characters are hit.

Hereinafter, a computer system for outputting voice information when a keyboard according to the present invention is selected will be described in detail.

Referring to FIG. 3, a code (first data) corresponding to a selected keyboard on the keyboard is transmitted to the keyboard controller 110. The first data (scan code data) is transmitted from the keyboard controller 110 to the bridge controller 120 through 8-bit second data SD0 to SD7 through the ISA bus. The bridge controller 120 receives the second data SD0 to SD7 and transmits the third data AD0 to AD7 to a main memory 150 (also referred to as a keyboard buffer) through the PIC bus. The bridge controller 120 also generates a signal SND_EN # for controlling the transmission of data.

The sound I / O decoder 160 of the sound controller 190 receives the third data AD0 to AD7 from the main memory 140 when the signal SND_EN # is activated. A DOS execution command interrupt (INT 2EH) is generated due to the data (code) input to the sound controller 160 to determine whether the current HBIOS mode is the Hangul mode or English mode. According to the determination result of the mode as described above, the library file recorded and stored in 11KHZ, PCM, and mono as shown in Table 1 and Table 2 is accesed.

Table 1 shows the library file and sound data of the alphabet, and Table 2 shows the library file and data of each Korean initial, neutral, and last name.

[Table 1]

text ADDRESS Sound output LIBRARY format SIZE Remarks A 0 a 11 kHz, PCM 1KB 26 alphabets B One Bei 11 kHz, PCM 1KB ... ... ... 11 kHz, PCM 1KB Z 25 Jet 11 kHz, PCM 1KB all 26KB

As shown in the table, each sound data corresponding to each character is 1 KB.

[Table 2]

division text ADDRESS Sound output LIBRARY format SIZE Remarks Initial A 26 That 11 kHz, PCM 1 byte 19 (including ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) ... ... 11 kHz, PCM 1 byte He 44 Ch 11 kHz, PCM 1 byte neutrality A 45 Ah 11 kHz, PCM 1 byte 14 ... ... ... 11 kHz, PCM 1 byte ㅣ 58 this 11 kHz, PCM 1 byte Jongseong A 59 memory 11 kHz, PCM 1 byte 14 ... ... ... 11 kHz, PCM 1 byte He 72 Hi 11 kHz, PCM 1 byte all 47 bytes 47

If the currently selected key is the English mode of the current Hangul BIOS mode, jump to the address corresponding to the character code in the alphabetical sound data area of the library file of Table 1 and output the sound data 1 KB recorded at that address as 8-bit data. The data is converted to an analog signal through the digital-to-analog converter 170 of FIG. On the contrary, if the current Hangul BIOS mode is Hangul mode, jump to the address corresponding to the character of the key selected in the library file of Table 2 and output the sound data recorded at the address. Hangul is divided into a first, a neutral, and a last verse in a manner different from the above-mentioned alphabet, so that addresses of 2 KB to 4 KB are continuously accessed from addresses 2 to 4, and sound data 1 KB stored in the sound controller 190 is input to the digital- do.

4 is a circuit diagram showing a configuration of a digital-analog converter.

Referring to FIG. 4, it should be noted that the digital-to-analog converter is comprised of resistors R1 to R8 and an operational amplifier, which is for example limited. The digital-to-analog converter receives sound data 1 KB for selected characters in Tables 1 and 2 from the sound controller 190 as 8-bit data (SD0 to SD7).

The 8-bit data is converted into an analog signal through a digital-analog converter and output to the outside through a speaker 170 inside the computer.

Table 3 shows the sound data and its size for sounding when a word is typed.

[Table 3]

letter Sound output LIBRARY format SIZE all four The 11KHZ, PCM 1KB + 1KB 2KB And Le + Ah + Lee 11KHZ, PCM 1KB + 1KB + 1KB 3KB

When the character 's' is hit, the sound controller 160 recognizes that the sound mode is 'Hang', and selects the sound data 's' recorded at the address corresponding to 'g'. Which is converted to 8-bit data and is heard by the typing operator via the digital-to-analog converter 170 and the speaker 180 of FIG.

Typical keyboard input systems require typing while viewing the screen on the monitor for fast task processing. However, in the case of those who are unfamiliar with typing the keyboard, it is necessary to alternate between the keyboard and the monitor screen to check the typographical errors of the characters. When they are typing in Korean and English, there is a case in which the wrong selection of Han / YiKi is repeatedly misspelled for a while during Hangul work without watching the monitor screen. Especially those who can not see ahead are more difficult to type.

However, according to the present invention, by decoding the scan code for each key, the alphabet of the English alphabet, the Korean consonant and the vowel are outputted as the voice information through the speaker whenever the selection is made. Therefore, even if you write incorrectly in English during the Hangul typing work, you can check it through the speaker, so you can correct the typos immediately.

As described above, the present invention has an effect that, when a person who is not infrequent to type is not watching a monitor, he / she can directly hear it in Korean or English.

Claims (3)

A keyboard device for generating a corresponding scan code when an input key is selected from the outside and for transmitting the scan code as first data in synchronization with a clock signal; A keyboard controller for receiving the first data serially transmitted from the keyboard device and transmitting the 8-bit second data in parallel; A PCI / ISA bridge controller for generating a sound activation signal; A HOST / PCI bridge controller; A main memory for receiving the converted third data from the PCI / ISA bridge controller and transmitting the fourth data; And a sound output unit for receiving the fourth data in response to the sound activation signal and determining whether the selected character key is in the Hangul mode or the English mode and outputting the corresponding data, A controller; A digital-to-analog converter for converting sound data of a key selected by the sound controller into an analog signal; And And a speaker for outputting the analog signal as voice information. The method according to claim 1, Wherein the sound controller stores sound data for characters of both Korean and English in the same size (1 KB) and outputs sound data for the selected key. The method according to claim 1, Wherein the computer system simultaneously outputs voice information for a selected character via the speaker when the keyboard is selected.