JPH09311658A - Character information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a character information display device such as a cax stereo device in which a series of character information consisting of a multiple number of characters is divided into a plurality of sections so as to be indicated sequentially on a display surface limited in displayable character number. SOLUTION: In a car stereo device 1 serving as the character information display device, TOC(table of contents) data in a minidisk MD are divided into sections containing characters within a maximum character number, which can be displayed in an LCD 24 at once, by means of a computer 21 and a control program, and then, the divided section of characters is displayed in the LCD 24. When the following character of the displayed divided section of characters is generated, a beep sound is generated by means of a beep sound generating circuit 25, and the displayed divided section of characters is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character information display device for displaying a series of character information composed of a large number of characters by dividing the character information into an appropriate number of characters.

[0002]

2. Description of the Related Art In the following description, a car stereo device will be described as an example of a character information display device.
For example, when displaying a title of a mini disc (hereinafter abbreviated as "MD") on a liquid crystal display device of a car stereo device of the related art, since the title is composed of a large number of characters, A so-called scroll method is adopted in which the next character is sequentially displayed on a limited display surface of a liquid crystal display device.

[0003]

However, since the title is a series of character information consisting of a large number of characters, it is very dangerous and unfavorable to see all the characters while driving. Also, it is very difficult to read all the characters while checking the safety ahead.

The present invention is intended to solve such a problem, and a series of character information having a large number of characters is divided into the maximum number of display characters of the display device to be displayed, and the display is performed. An object of the present invention is to obtain a character information display device such as a car stereo device which sequentially displays divided characters on a display surface having a limited number of characters.

[0005]

Therefore, the character information display device of the present invention comprises a dividing means for dividing a large number of characters from a series of character information sources into a maximum number of characters that can be displayed at one time, and a dividing means for dividing the same. Display means for displaying the divided characters of the number of characters divided by the dividing means, a beep sound is generated when a character behind the divided characters displayed on the display means is generated, and the displayed divided characters are stopped. The above problem is solved by using a beep sound generating means.

Therefore, in the character information display device such as the car stereo device of the present invention, the divided characters are sequentially displayed,
Behind the divided character, for example, when the last character occurs, a beep sound is generated and the divided character is stopped and displayed, so an operator such as a driver changes the displayed divided character. Can be recognized by a notification sound, and the operator can use the notification sound as a signal to minimize the time to look at the display surface and see the display. Therefore, if the operator is a driver, It is possible to prevent the safety confirmation of the person from being hindered.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a series of character information sources having a large number of characters is used as TOC (abbreviation of table of contents) data of MD, and a character information display device of the present invention is used for reproducing the MD. A stereo apparatus will be described, and an embodiment thereof will be described with reference to FIGS. 1 is a circuit block diagram of a car stereo apparatus of the present invention, FIG. 2 is a circuit diagram for generating a beep sound in the circuit block diagram, and FIG. 3 is a series of characters having a large number of characters. The TOC data of MD, which is an example of information, is shown. A in the figure is a series of titles in the TOC data, and B in the figure is the maximum number of characters displayed on the display surface of the display device. The title is divided into four parts.

In FIG. 1, reference numeral 1 indicates a car stereo device of the present invention. The car stereo device 1 includes an audio signal reproduction system 10 and a character display control system 20. The audio signal reproduction system 10 is an optical pickup 1
1, a D / A converter 13 for converting audio data of a digital signal reproduced by the optical pickup 11 and the disc player 12 into an analog signal, and an output side of the D / A converter 13. The amplifier 14 is connected and amplifies the converted analog audio signal, and a speaker 15 connected to the output side of the amplifier 14.

On the other hand, the character display control system 20 is mainly composed of a computer 21 (hereinafter abbreviated as "CPU") which executes a control program to be described later to control display of character information, and is provided on the input side of the CPU 21. Is connected to the operation key 22 via the system bus, the output terminal thereof is connected to the LCD 24 via the LCD driver 23, and the other output terminals are connected to the buzzer 26 via the beep sound generation circuit 25. The other output terminal of the disc player 12 is connected to the other input terminal of the CPU 21. CPU
A system ROM for storing a control program, a RAM for temporarily storing character information, etc. are connected to 21.

Further, information such as title, song number, performance time, etc., which is different from the music signal, called TOC data is recorded on the mini-disc MD on the disc.

The disc player 12 has a mini disc MD.
Is mounted and driven, and the optical pickup 11 reproduces audio data and TOC data. The audio data is sent to the D / A converter 13, converted into an analog signal, amplified by the amplifier 14, and reproduced by the speaker 15. On the other hand, the reproduced TOC data is sent to the computer 21. Note that the title of the music input to the mini disc MD has, for example, the 26 characters shown in FIG. 3A.

This TOC data is stored in the R of the computer 21.
According to the display control program temporarily stored in the AM and stored in the system ROM, the L of the car stereo device 1 is stored.
Assuming that the maximum number of characters displayed on the CD 24 is, for example, 8 characters, the title is divided into 4 parts by 8 characters from the beginning, as shown in FIG. 3B.

The LCD driver 2 receives the 8-character data.
3, and the 8-character data is latched on the LCD 24 for 3 seconds and displayed for 3 seconds. When the display of 8 characters is completed, a beep sound is generated to notify the driver that the display has changed. Then, character data is sent to scroll the 9th and subsequent characters, and after sending 16 characters of data, the latch for 3 seconds is applied in the same way,
A beep sound is generated, and after that, the character data is repeated as many times as there are, and when the character data ends, the first eight characters are continuously displayed until the next song starts. When the next song starts,
Similarly, the song name is displayed every eight characters and a beep sound is generated. It should be noted that the above latch time may be any time as long as it can be read safely and at an appropriate speed during operation.
It is not limited to "seconds".

The beep sound can be generated by the beep sound generation circuit 25, an example of which is shown in FIG. This beep sound generation circuit 25 uses an open drain port of a high withstand voltage output port (5 volts or more), for example, 3K.
Repeat at Hz to place the port in an active high and active low state. A beep sound can be generated by connecting the buzzer 26 to the port.
The beep sound is stopped by a control program, for example, it is stopped in 1 second.

In the above description, the TOC data of the mini disk MD is displayed on the LCD 24 of the car stereo device 1 as a character information display device, but the character information display device of the present invention is limited to this embodiment. Not done. Also,
The display is not limited to the display of the TOC data of the mini disk MD, but can be applied to the character display of FM multiplex broadcasting, the character display of navigation, the character display of measuring instruments, the character display of control devices, and the like.

[0016]

As described above, according to the character information display device of the present invention, in the case of a car stereo device,
It is possible to prevent the driver from staring at the display and causing an accident, and in the case of a measuring instrument, do not miss the timing of the measurement by staring at the display, and want to get a lot of information. A number of excellent effects can be obtained, which helps in some cases.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a car stereo device which is an embodiment of a character information display device of the present invention.

FIG. 2 is a beep sound generation circuit diagram in the circuit block diagram shown in FIG.

FIG. 3 shows TOC data of MD, which is an example of a series of character information composed of a large number of characters, FIG. 3A is a series of titles in the TOC data, and FIG. The title is obtained by dividing the title into four maximum display characters on the display surface of the display device.

[Explanation of symbols]

1 ... Car stereo device, 10 ... Audio signal reproduction system,
11 ... Optical pickup, 12 ... Disc player, 13
... D / A converter, 14 ... Amplifier, 15 ... Speaker,
20 ... Character display control system, 21 ... Computer, 22 ... Operation keys, 23 ... LCD driver, 24 ... LCD, 25 ...
Beep generation circuit, 26 ... Buzzer

Claims (1)

[Claims] 1. A dividing means for dividing a large number of characters from a series of character information sources into a maximum number of characters that can be displayed at one time, and a display means for displaying the divided characters of the number of divided characters by the dividing means. Character information comprising: a beep sound generating means for generating a beep sound when a character behind the divided character displayed on the display means is generated and for stopping the displayed divided character. Display device.