JPH0769889B2 - Electronics - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electronic device, and more specifically, to an electronic device capable of storing and calling character information / numerical information and displaying each information. Regarding small electronic devices such as memos and auto dialers.

(B) Conventional Technology It is essential for this type of small electronic device to be able to display character information and numerical information. Conventionally, it is well known that a dot matrix type display device is used for displaying character information and a segment type display device is used for displaying numerical information. However, in a conventional small electronic device, when displaying both character information and numerical information, for example, 7 × 5
It is common to use a dot matrix type display device having a dot configuration. This is because the segment type display device is not suitable for displaying character information.

As a small electronic device capable of storing character information and numerical information in the main body and displaying both information, there is "ELECTRONIC POCKET DIRECTORY" disclosed in US Pat. No. 4,117,452.

(C) Problems to be Solved by the Invention However, in such a small electronic device, the area of the display unit is generally limited such that the dot matrix type display device has a display digit number of 12 digits, for example. There is. Therefore, when inputting a telephone number (numerical information) having a long number of digits or when calling a telephone having a long number of digits stored in the main body, there is a problem that the telephone number overflows the number of displayed digits. That is, when the telephone number is scrolled in the direction of the digits, the first digit of the number disappears from the display unit, so that it is not possible to input the telephone number while checking the previously input contents. Further, when calling a telephone number having a long number of digits, the entire telephone number could not be displayed as a list on the display unit.

The present invention has been made in consideration of the above circumstances, and an object thereof is to provide information displayed on a segment type display unit in a dot matrix type in a small electronic device including a segment type display unit and a dot matrix display unit. An object of the present invention is to provide an electronic device capable of displaying numerical information with a long number of digits as a list by using two types of display units by being configured to switch and display on the display unit.

(D) Means for Solving the Problems FIG. 1 is a block diagram showing the basic configuration of the present invention.
As shown in FIG. 1, according to the present invention, an input means 1 for inputting character information, numeral information and various instructions, a storage means 2 for readable storage of character information and numeral information, and an input means 1 to a storage means. Writing / reading means 3 for writing each piece of information to and reading each piece of information from the storage means 2;
Display means 4 having a dot matrix display section for displaying character information / numerical information of a predetermined number of characters / display digits and a segment display section for displaying numerical information or symbols of a predetermined number of display digits; Temporary storage means 5 for temporarily storing the character information and the numerical information read out from the storage means 2 by the reading means 3, and the character information stored in the temporary storage means 5 is converted into dot matrix display information and the numeral is displayed. Conversion means 6 for converting the information into segment display information, display control means 7 for outputting each converted display information to each display portion of the display means 4, and temporary storage means 5.
And a judging means 8 for judging whether or not the numerical information stored in the segment display section exceeds a predetermined display digit number of the segment display section. When receiving a judgment result that exceeds the number of digits,
This numerical information is converted into dot matrix display information within a predetermined display digit number range, and the remaining numeric information exceeding the predetermined display digit number is converted into segment display information and output to the display control means 7. It is an electronic device that does.

Further, the storage means 2 of the present invention can be composed of a RAM for storing name information as character information and telephone number information as numerical information in a variable record length.

The display means 4 can be composed of a liquid crystal display device in which a dot matrix display part capable of displaying up to 12 digits of characters and numbers and a segment display part capable of displaying up to 12 digits of numbers and symbols are vertically arranged. .

The conversion means 6 can be composed of a shift register for increasing the 4-bit information to 8-bit information and two 4-bit latches for holding the increased 8-bit information.

(E) Operation According to the configuration of the present invention, when the numerical information exceeding the predetermined display digit number of the segment display section of the display unit 4 is input from the input unit 1, the determination unit 8 is stored in the temporary storage unit 5. Since it is determined whether or not the numerical information exceeds the predetermined display digit number of the segment display section and the judgment result is output to the conversion means 6, the conversion means 6 dots this numeric information within the predetermined display digit number range. The information is converted into matrix display information, and the remaining numerical information exceeding the predetermined number of display digits is converted into segment display information and output to the display control means 7. At this time, the display control means 7 acts so as not to output the character information that has already been converted into the segment display information to the dot matrix display section.

Therefore, when the numerical information displayed on the segment display unit exceeds the number of display digits, the dot matrix display unit and the segment display unit are divided and displayed as a list. If the same numerical value is subsequently input as a numerical information with a telephone number having a long number of digits, the telephone number having all the digits can be confirmed, so that an input error can be prevented.

(F) Examples The present invention will be described in detail based on the examples shown in the drawings. The present invention is not limited to this.

FIG. 2 is a front view of an auto dialer which is an embodiment of the present invention. FIG. 3 is a rear view of FIG. In both figures, this auto dialer has a telephone directory function, a tone dialing function for calling a telephone and a calculator function. These functions are selected by the mode switching key.

10 is a main body of a size that can be carried and fits in the palm of the hand, 11 is an LCD as a display means, and this LCD mainly has a dot matrix display section 12 for displaying the name as character information in alphabets and mainly as numerical information. A segment display unit 13 for displaying a telephone number and a symbol. The LCD 11 may be composed of LEDs. The dot matrix display unit 12 can display characters up to 12 digits, and the segment display unit 13 can display telephone numbers up to 12 digits. However, in the telephone number, the hyphen "-" is also treated as one digit.

Reference numeral 14 is a key input unit as an input means.
Is composed of an input key 15 having an alphabet key and a replacement key for inputting a name and a telephone number, and a function key 16 for setting various instructions and various modes. The input key 15 is used to Press once to enter the letter "A", and press the same key twice to enter the letter "B". Further, the input key 15 functions so that a numeral can be input in the calculator calculation mode.

The mode switching key 16a is mainly used when switching between the telephone book function and the calculator function.

▲ [SEARCH] ▼ keys 16b and 16c are used respectively to call a name and a telephone number stored when the telephone directory function is used.

Press to call the stored names in alphabetical order, Press to call names in the reverse order. The contents stored by the telephone directory function are automatically rearranged and stored in alphabetical order inside the main body.

Also enter the first letter of the name You can also press to directly call up the content that begins with that character. ▲ [▼ key 16d] ▼ is for segment display 1
Segment display section 1 because the number of display digits of 3 is exceeded
It is used when calling the subsequent contents not displayed in 3. The ▲ [ENTER] ▼ key 16e is used to store the name and telephone number input in the telephone directory mode in the main body 10. The [DIAL] key 17 is used when making a call using the auto dial function. ▲ [ON]
▼ key 16f, ▲ [OFF] ▼ key 16g turns the power of main unit 10 on and off
Used when doing F respectively.

In FIG. 3, reference numeral 18 is a speaker attached to the main body 10. The speaker 18 emits a two-frequency tone which is a calling signal.

FIG. 4 is a block diagram showing the configuration of this embodiment.
In the figure, 20 is a RAM (hereinafter referred to as a data buffer) as a storage means, which is a name data buffer and telephone number data for readablely storing the name data and the telephone number data input from the key input unit 14. Each has a buffer. The RAM 20 also has a dot matrix display buffer and a segment display buffer.

MPU21 is a writing / reading means, a temporary storage means, a display control means,
It functions as a judgment means and a conversion means, and has a 4-bit configuration. The function of the MPU 21 will be described below in the case of copying the name data and the telephone number data from the data buffer to the display buffer.

The data bus of the MPU21 is 4 bits, but one data copied from the name data buffer to the dot matrix display buffer is 8 bits. Therefore, the name data composed of 8 bits is divided into upper 4 bits and lower 4 bits and copied. At this time, the accumulator (ACC) which is a 4-bit register
Make a copy through. This process is illustrated in FIGS. 5 (a) and (b).

Next, when copying the telephone number data to the segment display buffer, since one piece of telephone number data is 4 bits,
Process with one copy. This process is illustrated in FIG. 5 (c).

Finally, the case of copying the telephone number to the dot matrix display buffer will be described. In this case, an operation of converting telephone number data into dot matrix character data is included. First, copy the phone number data to the accumulator. Next, data conversion is performed on the accumulator to generate 8-bit data that is dot matrix character data. Further, of the 8-bit data, the upper 4 bits are copied to the dot matrix display buffer via the accumulator (see FIG. 5 (d)). Then, the remaining lower 4 bits are copied to the dot matrix display buffer via the accumulator in the same manner as above (see FIG. 5 (e)).

Data conversion is performed by a data conversion circuit including a shift register for bit-expanding 4-bit data to 84-bit data and two 4-bit latches for holding the converted 8-bit data.

22 is a ROM in which a program for executing the functions of the MPU 21 is written. 23 is an input port and 24 is an output port. To the output port 24, an output device 25 that constitutes an audio coupler and a display device 26 are connected. Output device 25
Is composed of a tone output buffer 25a for generating a two-frequency mixed tone which is a calling signal, an amplifier 25b and a speaker 18. When using the auto dial function, press the speaker 18 to the mouthpiece of the handset and press the ▲ [DIAL] ▼ key 17 to send a two-frequency mixed tone to the telephone line via the speaker 18 to call the other party. You can Display device
Reference numeral 26 is composed of an LCD driver 26a for generating character information and numerical information on the LCD screen and an LCD 11.

Next, the processing of the MPU 21 will be described according to the flowchart shown in FIG. The data input in the phonebook mode with a phone number of 12 digits or more will be described as an example. In the description, first, the data structure of the name and the telephone number will be described, then the display process in the state where no scroll is performed will be described, and then the display process when the scroll is performed will be described.

Data structure As the data structure, name data has an 8-bit code for handling alphabets, numbers and symbols, and telephone number data has a 4-bit code for handling numbers and symbols. There is.

Display Processing When Not Scrolling Next, the display processing when the scroll is not performed will be described.
However, it is assumed that the telephone number of Mr. "Robert Smith" is registered in RAM20 together with its name.

Call Robert Smith's phone number and display it by the following operation.

When displaying data, the MPU21 first sets the data buffer (R
Copy the part to be displayed in AM20) to the display buffer and display according to the contents of the display buffer.
Therefore, first, 12-digit name data is copied to the dot matrix display buffer. At this time, one data is 8 bits. Second, copy the first 12 digits of the telephone number data to the segment display buffer. At this time, one data is 4 bits. Finally, display processing is performed to display the name data and the telephone data on the LCD 11, respectively. The procedure of this process is shown in FIGS.

Display Processing When Scrolling Is Not Performed Next, the display processing when scrolling, which is a feature of this embodiment, will be described. When referring to the data in the third row (in the data buffer) that is not displayed on the LCD 11 by pressing the ▲ [▼] ▼ key 16d, the telephone number data is moved to the dot matrix display section 12 in the first row. It is determined (step 30). By storing a pointer indicating the display range in the data buffer in advance, it is possible to judge whether the name data or the telephone number data comes to the first-stage dot matrix display section depending on the position indicated by the pointer. it can. When it is determined by the above process that the telephone number data will come to the dot matrix display section, the telephone number data of 4 bits is converted into 8 bits for the dot matrix display (step 31),
Copy to dot matrix display buffer (step
32). When copying to the display buffer, it is judged whether the data is the 12th data (step 33). If it is not the 12th data, the next telephone number data is called (step 34), step 31
Return to. If the data is the 12th in step 33, that is, if the conversion of the dot matrix display of the telephone number data of the second stage of the data buffer is completed, the telephone number data of the third stage of the data buffer is called next (step 3
5) Copy to segment display buffer (step 3)
6). When copying to the display buffer, it is judged whether the telephone number data is the 24th (step 37). If the telephone number data is the 24th, it is considered that the processing has been completed, and the entire telephone number data is displayed by performing the display processing. The dot matrix display section 12 and the segment display section 13 are divided and displayed (step 38). If the third-stage telephone number data is less than 24 digits, "space" is inserted for the number of insufficient digits and the number of digits is 24. Figure 8 (a)
~ (C) shows the procedure of this process.

If the telephone number data does not come in step 30, that is, if it is name data, the name data is copied to the dot matrix display buffer (step 39) and it is judged whether the name data is the 12th (step 40). If it is not the 12th, the next data is called (step 41) and the process returns to step 39. If it is the 12th, the process moves to step 35.

(G) Effect of the Invention According to the present invention, the dot matrix display information is 4 bits.
Since the processing can be performed by the MPU having the configuration, the cost of the MPU can be reduced and the RAM can be configured with a small storage capacity.

Furthermore, according to the present invention, even if the input numerical information exceeds the predetermined number of characters / display digits of the segment display unit,
Since the numerical information is displayed as a list using the dot matrix display unit, it is possible to input numerical information having a large number of digits while checking. Further, even when the numerical information is read, it is possible to display a list by dividing the numerical information that is not displayed on the segment display unit into the dot matrix display unit and the segment display unit.

[Brief description of drawings]

1 is a block diagram showing the basic configuration of the present invention, FIG. 2 is a front view of an auto dialer which is an embodiment of the present invention, FIG. 3 is a rear view of FIG. 2, and FIG. 4 is FIG. 5 is an explanatory diagram showing the display processing method of this embodiment, FIG. 6 is a flowchart of the embodiment, and FIG. 7 is name data in the embodiment. FIG. 8 is an explanatory diagram showing a telephone number telephone data display process, and FIG. 8 is an explanatory diagram showing a telephone number data list display process in the embodiment. 1 ... Input means, 2 ... Storage means, 3 ... Write / read means, 4 ... Display means, 5 ... Temporary storage means, 6 ... Conversion means, 7 ... Display control means, 8 ... Judgment means.

Claims (1)

[Claims] 1. Input means for inputting character information, numeral information and various instructions; storage means for storing character information and numeral information in a readable manner; and writing and storing of each information from the input means to the storage means. Writing / reading means for reading the respective information, a dot matrix display section for displaying character information / numerical information of a predetermined number of characters / display digit number, and numerical information or symbols of a predetermined display digit number Display means having a segment display section, temporary storage means for temporarily storing the character information and numerical information read from the storage means by the writing / reading means, and the character information stored in the temporary storage means in a dot matrix. The conversion means for converting the display information and the numerical information into the segment display information and the converted display information are output to the respective display sections of the display means. Display control means and a judgment means for judging whether or not the numerical information stored in the temporary storage means exceeds a predetermined number of display digits of the segment display section, and the conversion means is arranged such that the numerical information is judged by the judgment means. When the judgment result that the number of digits displayed on the segment display exceeds the predetermined number of digits is received, the numerical information is converted into the information for dot matrix display within the range of the number of digits displayed, and the remaining numerical information that exceeds the number of digits displayed is displayed. An electronic device, characterized in that it is converted into segment display information and is output to a display control means.