JPH04108236U - small electronic calculator - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention is a small electronic calculator that allows key input of English data or Japanese data, for example, without the need to operate the shift key for each character input. The purpose is to automatically cancel or continue the shift state depending on the situation. [Structure] The key code data obtained by the key code generating unit 14 in response to a user operation key in the key input unit 12 is determined by the key code determining unit 16 to be a "symbol" code or an "lowercase English letter" code. in case of,
The flag data in the shift flag register 15 is held as "1" and the shift state continues, and if it is determined that the key code data is not the "symbol" code or the "lowercase alphabet" code, , the flag data is inverted to "0" and its shift state is canceled.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a personal computer that allows key input of English data or Japanese data, for example. Related to small electronic calculators such as computers.

0002

[Conventional technology]

In the key input device installed in the above-mentioned personal computers, etc., one key Some models have the ability to input multiple types of data, depending on the key input mode. Confirm the type of input data during normal input, and use the shift key combination to further Other types of data entry can be performed.

0003 In other words, if you set kana character mode, uppercase kana characters are normally input. Kana lowercase letters are entered when the shift key is pressed.

0004 Also, if lowercase alphabetic characters mode is set, lowercase alphabetic characters are entered normally, and the Uppercase letters are entered when using the softkeys.

[0005] Furthermore, if you set the uppercase alphabet mode, uppercase letters will be entered normally, Lowercase letters are entered when using the shift key.

[0006] If the symbol mode is set, the symbol type 1 is input during normal times, and the symbol mode is The second type of symbol is input when the softkey is operated.

[0007] Here, the shift state in each of the above input modes is determined by the operation of the shift key. is set, and the next key input operation will input one character in the shift state. However, due to the nature of the input data, only one character may be input in a shifted state. Character types that are often entered in a shifted state, and character types that are often entered in a continuous shift state. There is.

[0008]

[Problem that the idea aims to solve]

In other words, for example, inputting kana lowercase characters in kana character mode is different from normal Japanese input. It is not possible to enter the text twice in a row, and the uppercase text in lowercase mode is When inputting characters, one character is often used at the beginning of a sentence, so the shift state above is for one character. It is sufficient if only the input is valid, but for example, when inputting lowercase letters in uppercase mode, In this case, the shift is repeated for each character input. You have to operate the key.

[0009] On the other hand, the key input device described above has a shift controller to maintain the shift state. A key (CAPS) is provided, but it has the drawback that it is cumbersome to operate.

0010 This invention was created in view of the above problems, and the shift key is operated every time a character is input. The shift state is automatically canceled depending on the nature of the characters being input without the need to The purpose is to provide a small electronic calculator that can be used continuously. .

[0011]

[Means to solve the problem]

In other words, the small electronic calculator according to the present invention is an input means for selectively inputting multiple types of data with one key; a data specifying means for specifying the type of data input by the input means; Determine the data input by the input means in the specified state by this specifying means. input data discrimination means; If the data determined by this determination means is the specified data, the above specified a specific release means for releasing the specific state caused by the means; It is configured with the following.

0012

[Effect]

In other words, data entered in a specific state by shift key operation, for example, The specific state will be canceled only if it is determined that the specified data is a letter or uppercase letter. and continues when determining other data inputs.

[0013]

【Example】

An embodiment of the present invention will be described below with reference to the drawings.

[0014] Figure 1 shows the configuration of the key input control section in a small electronic calculator. , 11 is a control unit, 12 is a key input unit, and the control unit 11 is a key input unit 12. The operation of each part of the circuit is controlled in response to key input signals from the controller.

[0015] In addition to the key input section 12, the control section 11 includes a key judgment section 13, a key code generation section unit 14, shift flag register 15, and key code determination unit 16 are connected.

[0016] The key input section 12 includes numerical input keys, character input keys, and key input state keys. The "shift" key 12a operated when setting the shift state, the key input state is ``CAPS'' key 12b, which is operated when locking to the ``ft'' state, is used to input symbols. The "symbol" key 12c is operated when inputting kana characters, and the "symbol" key 12c is operated when inputting kana characters. It is equipped with various function keys such as "kana" key 12d, and this key input section 12 These key input signals are passed through the control unit 11 to the key determination unit 13 and the key code generation unit. Sent to 14th.

[0017] The key determination unit 13 determines the key input signal based on the key input signal input from the control unit 11. - The user operation key in the input section 12 is the "shift" key 12a or the data input key This key judgment signal from the key judgment unit 13 is output to the control unit 11. Powered.

[0018] At this time, the control section 11 controls the user based on the key judgment signal from the key judgment section 13. When the operation key is the "shift" key 12a, the shift flag register 15 Inverts the flag data.

[0019] The key code generation unit 14 receives the key input signal input from the control unit 11, and Based on the shift data in the shift flag register 15, the The key code generator 14 generates corresponding key code data. The generated key code data is sent to the control section 11.

[0020] The key code determination unit 16 is connected to the key code generation unit 14 through the control unit 11. Based on the key code data entered, whether the key code is a “symbol” code or an “English” code. The key code from this key code judgment unit 16 is The mode determination signal is output to the control section 11.

[0021] At this time, the control section 11 controls the key code judgment signal from the key code judgment section 16. If the key code is not the above "symbol" code or the above "lowercase alphabet" code Then, the flag data in the shift flag register 15 is inverted.

[0022] Next, we will explain the operation of the key input control section of the small electronic calculator with the above configuration. do.

[0023] Figure 2 shows the key input control process in the key input control section of the above-mentioned small electronic calculator. This is a flowchart.

[0024] In the key input section 12, for example, the "kana" key 12d is operated, and the kana character With the code set, use the Shift key to enter lowercase kana characters while creating a document. - When 12a is operated, the key input signal from the key input section 12 is transmitted through the control section 11. and sent to the key determination unit 13 (steps S1, S2).

[0025] Then, the key determination unit 13 determines that the user operation key is the "shift" key 12a. It outputs a key judgment signal indicating that the control unit 11 inverts the flag data in the shift flag register 15 from “0” to “1” (steps S3, S4).

[0026] When the kana character input key is operated in the key input unit 12, the user When the key determination unit 13 determines that the operation key is a data input key, Then, the key input signal is sent to the key code generation section 14 (steps S1 to S3→S 5).

[0027] Here, in the key code generation section 14, the shift flag register 15 is set. Based on the flag data, a lowercase kana code corresponding to the user operation key is generated. In this case, the control unit 11 sets the shift flag register 15. It is determined that the input shift flag data is “1”, and the above key code is executed. The key code data generated by the code generating section 14 is sent to the key code determining section 16. (steps S6, S7).

[0028] Then, the key code judgment unit 16 uses the kana short sentence sent through the control unit 11. The character code is determined to be neither a "symbol" code nor a "lowercase alphabet" code. As a result, the control section 11 receives the key code from the key code determination section 16. Based on the code determination signal, the flag data in the shift flag register 15 is 1" to "0" and cancel the shift state in the above kana character mode. (Steps S8 and S9).

[0029] In other words, when inputting Japanese in the above-mentioned kana character mode, normal kana characters are input. There are no two or more consecutive lowercase letters, so the operation of the above "shift" key 12a is After the creation, the shift state where lowercase kana letters can be input only by key input of one character data is changed. validate.

[0030] On the other hand, in the key input unit 12, for example, when the English capital letter mode is set, When you operate the "shift" key 12a to input lowercase letters while creating English text, the key input A key input signal from the power section 12 is sent to the key judgment section 13 through the control section 11 ( Steps S1, S2).

[0031] Then, the key determination unit 13 determines that the user operation key is the "shift" key 12a. It outputs a key judgment signal indicating that the control unit 11 inverts the flag data in the shift flag register 15 from “0” to “1” (steps S3, S4).

[0032] Then, in the key input unit 12, when the alphabetic character input key is operated, the user When the key determination unit 13 determines that the operation key is a data input key, , a key input signal is sent to the key code generation section 14 (steps S1 to S3→S5 ).

[0033] Here, in the key code generation section 14, the shift flag register 15 is set. Based on the flag data, the lowercase alphabetic code corresponding to the user operation key is generated. In this case, the control unit 11 sets the shift flag register 15. It is determined that the shift flag data is “1”, and the above key code is issued. The key code data generated by the raw unit 14 is sent to the key code determination unit 16. (Steps S6, S7).

[0034] Then, the key code determination unit 16 determines the key code sent through the control unit 11. The data is determined to be a "lowercase alphabetic" code, which causes the control unit to 11 performs the shift based on the key code determination signal from the key code determination unit 16. The flag data in the flag register 15 is held as "1", and the The shift state in the character mode is continued (step S8→S1).

[0035] In other words, when inputting English text in the upper case mode, the normal Since lowercase letters often occur consecutively after an uppercase letter, operate the "Shift" key 12a above. The shift state in which lowercase letters can be entered continues even after keystrokes for one character data have been entered. It will be continued.

[0036] Furthermore, in this embodiment, the symbol input mode based on the operation of the "symbol" key 12c is selected. Even if the "shift" key 12a is operated in In the same way as the key input control process, even after key input for one symbol data, the shift is The situation will continue.

[0037] Therefore, according to the key input control section of the small electronic calculator with the above configuration, the key input The key code generated by the key code generator 14 corresponds to the user operation key in the power unit 12. The key code data is determined by the key code determination unit 16 as a “symbol” code or If it is determined that the code is a "lowercase" code, the shift flag register 15 The flag data is held as “1” and the shift state continues. The key code data is determined by the key code determination unit 16 as a "symbol" code or "English" code. If it is determined that the code is not “lowercase”, the shift flag register 15 The flag data is inverted to “0” and its shift state is canceled, so the shift Input conditions can be automatically set as necessary.

[0038]

[Effect of the idea]

As described above, according to the present invention, an input means for selectively inputting multiple types of data with one key; a data specifying means for specifying the type of data input by the input means; Determine the data input by the input means in the specified state by this specifying means. input data discrimination means; If the data determined by this determination means is the specified data, the above specified a specific release means for releasing the specific state caused by the means; Since the configuration is equipped with The shift state can be automatically canceled or continued depending on the nature of the characters being displayed. It becomes possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a key input control section in a small electronic calculator according to an embodiment of the present invention.

FIG. 2 is a flowchart showing key input control processing in the key input control section of the small electronic calculator.

[Explanation of symbols]

11...Control unit, 12...Key input unit, 12a..."Shift"
key, 12b... "CAPS" key, 12c... "symbol" key, 12d... "kana" key, 13... key judgment unit, 14...
Key code generator, 15...Shift flag register, 16
...Key code judgment section.

Claims (1)

[Scope of utility model registration request] Claim 1: an input means for selectively inputting a plurality of types of data with one key; a data specifying means for specifying the type of data to be input by the input means; The present invention is characterized by comprising input data discriminating means for discriminating input data, and identification canceling means for canceling the specified state by the specifying means when the data discriminated by this discriminating means is predetermined data. A small electronic calculator.