JPH02194415A - Information processor - Google Patents

Abstract

PURPOSE:To release a keyboard locked state without executing a troublesome operation by releasing a set time when the set wait time is timed and a key input is decided to be in a prohibited state. CONSTITUTION:The decision of the presence/absence of the key input from a keyboard KB or interpretation of input information is executed by a key input deciding means (f), and the key input deciding means (f) consists of a CPU composed of a microprocessor, etc. The keyboard locked state is automatically released when the prescribed wait time is timed and the key input is not executed, the timing is executed by a key input time-out deciding means (g), and a time-out counter setting means (b) is provided so as to arbitrarily set the wait time. Thus even in the key input prohibited state, since the key input is automatically permitted after the arbitrary wait time set beforehand, the troublesome keyboard lock releasing operation is made unnecessary.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to an information processing device, particularly a keyboard, and an information processing means 41 that executes data processing corresponding to keystroke information input from the keyboard. The present invention relates to an information processing device that prohibits key input from the keyboard when the following is true.

[Prior Art] Conventionally, electronic devices such as word processors, personal computers, and electronic typewriters have been able to perform various types of IAJ in response to key data input from a keyboard.
It is designed to execute l.

For such devices, there is a known method of controlling the device to a so-called keyboard lock state, which prevents key input from being accepted in the event of illegal key input or key input exceeding processing capacity. There is.

For example, on electronic typewriters, the keyboard lock control is activated even if the key input for printing exceeds a preset right margin position or the number of pages in one line (page end). will be carried out. In addition, with this type of device, the time required for processing in response to key input is not constant, and even if the key data buffer overflows because the IA cannot keep up with the key input, the keyboard can be locked. There are known methods to set the condition.

[Problems to be Solved by the Invention] In conventional devices, such as electronic typewriters, when printing beyond the margin or page end, it is necessary to release the lock by pressing a specific key. Are known.

For example, when attempting to print beyond the margin, there is a known technology that releases the keyboard lock state by pressing the margin release key and prints outside the margin according to the key input. There is.

However, such a keyboard lock release operation is extremely troublesome, and there is a problem in that depending on the document to be printed, the release operation may be complicated and unavoidable.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide an information processing device that can release the keyboard from a locked state without performing complicated operations.

[Means for Solving the Problems] In order to solve the problems in 4F below, the present invention includes a keyboard and an information processing means for executing data processing corresponding to keystroke information input from the keyboard, In the information processing device M, which prohibits key input from the keyboard when the above is satisfied, means for determining whether the key input is prohibited, and timing an arbitrary waiting time after a key input until the next key input. A configuration is adopted in which the key input inhibited state is canceled when it is determined that the key input is inhibited due to the determination half-dead when the waiting time set by the timer means is counted.

[Operation] According to the above configuration, even if the key input is prohibited, it becomes possible to input the key voluntarily after a preset arbitrary waiting time.

[Examples] The present invention will be described in detail below based on examples shown in the drawings.

FIG. 1 shows the basic configuration of an information processing device employing the present invention.

In FIG. 1, reference numeral KB denotes a keyboard, and a key input determination means f determines whether or not there is a key input from the keyboard KB or interprets input information. This key input determination means f is constituted by a CPU such as a microprocessor which will be described later.

The control means i performs the corresponding information processing according to the input information from the keyboard KB and the pressed information of characters, symbols, function keys, etc., and performs the actual processing. The control means i is composed of a display means, a printing means, and others.

Keystroke data input from the keyboard KB is stored in a buffer memory, and whether or not new data exists in this buffer is indicated by the key input instruction means e. This instruction means e is composed of a flag set in a memory.

For example, if a predetermined condition is met, such as forced printing outside the margin of an electronic typewriter, key input from the keyboard KB is prohibited, that is, the keyboard is locked. This is indicated by the keyboard lock instruction means d. This instruction means d also consists of a flag or the like.

In the present invention, the keyboard lock state is automatically released when a predetermined waiting time is counted (timeout) and there is no key input. This time measurement is performed by key input timeout determination means g consisting of a counter or the like. Further, a timeout counter setting means is provided so that the user can arbitrarily set the waiting time.

Furthermore, it is possible to arbitrarily set whether or not to automatically release the keyboard lock due to this timeout. 9″ setting (
, go to step ttwah by the step 10 a of the step 10 key input execution instruction.

Furthermore, when the keyboard lock is automatically released, the keystrokes of the four registered keystrokes can be generated in the preview f and l directions. This 1-stroke is controlled by the output of the determining means g and is registered in the key setting means. Depending on the user, @ can be selected, and is.

FIG. 2 shows the configuration of an electronic typewriter as an example of a device employing the present invention. In FIG. 2, the symbol lO
The keyboard consists of a full keyboard that supports JIS layout, etc. The keyboard 10 is provided with character keys, numeric keys, etc. Data output to the keyboard 10 is provided by the 1' interface section 20.

The interface section 20 is a known keyboard control C.
P [1, or a keyboard interface 2 consisting of a buffer memory for data input/output, etc.
0 generates a keystroke data corresponding to a pressed key on the keyboard 10.

Keystrokes [・Loafday・Yu] do not necessarily correspond to the letters of the letter keys, and a keystroke code of one byte or several bytes is generated for pressing one key, and is input to CPtJ30. .

The interface unit 20 is connected to the system bus 10 ports of the device. The system bus is an address and data bus 70. It consists of a control fXI line 80. The following units ν are connected to this bus.

First, reference numeral 30 is a CP consisting of a microprocessor, etc.
U controls the entire device and controls the keyboard lock, which will be described later.

Next, reference numeral 40 is a ROM, which stores a control program for the CPU. This control program includes a giebo-lock control routine to be described later.

Reference numeral 50 is R, ALK, which is used as a buffer area for human output data or a work area for Cr1)30.

Reference numeral 60 is the printer section, which is thermal type, inkjet type,
The recording method is configured based on a desired recording method such as a wire dot method or a laser beam method.

Figure 3 shows the CPO30% keyboard 1.0 of Figure 2. R.O.
The structures of M40 and RAM50 are shown in detail.

The keyboard 10 has a well-known key matrix structure, and a keyboard interface unit 20 receives a key signature, and input data is taken in for each line separated by one character or a predetermined line feed character. On the other hand, C.P.
The IJ 30, ROM 40, and RAM 50 are connected by a bus 70, that is, an address bus AB and a data bus DB. Inside the RAM 50, areas are reserved for various flags, counters, or data buffers indicated by codes in the 500s.

In this embodiment, as will be described later, when releasing the keyboard lock state, the user can set the time period until the key input timeout when the keyboard lock state is first entered as desired.

Further, the user can also set whether or not to automatically release the keyboard lock according to the elapsed time. Furthermore, it can be performed in response to pressing a desired key.

For this reason, a flag 501 is set in the RAM 50 to determine whether or not to release the keyboard lock depending on the time elapsed since the keyboard was locked.

Further, reference numeral 502 is a delay counter that monitors the timeout of key input, and arbitrary time measurement data is set by control described later.

Reference numeral 503 is an area for registering keystroke data that is automatically generated when a key input timeout occurs. When data registered in this area is generated, the keyboard interface 2
It works in the same way as if it were input from 0.

Reference numeral 504 is an area for storing the delay count fal&, which is counted according to the delay data set in the area 502.

The lock state of the key 10a to be locked is flag 5.
05. The lock state set by this flag is as follows.

First, there is an input from the keyboard 10, but if there is no free space in the key buffer 510C for storing keystroke data, the keypad RO! In other words, it becomes deaf, prohibiting the reception of key input. The keyboard is also locked when there is a key input related to carriage movement outside the left and right margins, a key input related to printing outside the margin when automatic line feed mode is specified, and a key input related to carriage movement beyond the specified page end line. A value identifying the reason for keyboard lock is stored in flag 505.

Reference numeral 506 is a key input counter, which is used by the CPU 30 to read key stroke data input from the keyboard 10 and store it in the key buffer 510 to increase the number of data to 30.

Reference numeral 510 is a buffer for storing keystroke data input from the keyboard 10, and keystroke data supporting character keys, numeric keys, and various function keys are stored in the order of input. Reference numeral 511 is a buffer for storing keystroke data read from the key buffer 510 or keystroke data automatically generated when key timeout data occurs. Reference numeral 512 indicates a function key and a buffer 511
This is a buffer for storing modification information that associates keystroke data stored in the .

When the keystroke data set in the buffers 511 and 512 indicates a predetermined character or symbol key, the same data converted into an internal code specific to this device is stored at 513.

Reference numeral 514 is a margin cancellation flag that is set when the carriage is moved beyond arbitrarily set left and right margins of the electronic typewriter or when printing is performed outside the margins.

Reference numerals 515 to 516 are registers that store the current position of the carriage, and register 515 stores the carriage position in the horizontal direction, and register 516 stores the line position within the page, that is, the carriage position in the vertical direction. be done.

The contents of these registers 515 and 516 include, during page format control, the top and bottom, left and right margins, hot zones, tab positions, decimal tab positions, vertical tab positions, and other data in the no register group 520 that stores page format data. The control is performed according to the comparison result.

Reference numeral 530 stores the start address and end address of a collection buffer 540 for editing print data, the address of the last printed character in the collection buffer, the address of the character at the carriage position, the address of the character indicated by the carriage, etc. A group of pointers (registers).

Next, the operation of the above configuration will be explained.

When a key is input on the keyboard 10, keystroke data is input via the keyboard interface 20. The CPU 30 sequentially inputs the input keystroke data to the key buffer 510, and
Key input color two.

update 506.

The CPU 30 executes printing and other processing according to the input key (key) and loaf data, but when it is determined that there is no space left in the key buffer 510 via the value of the counter 506, it determines that there is a key buffer overflow, and the keyboard Set to locked state.

In the keyboard lock state, all unprocessed keystroke data stored in the key buffer 510 is invalidated, the buffer 510 and the key input counter 506 are cleared, and the keyboard lock instruction flag 50 is cleared.
5 is set, and reception of key input is prohibited.

The keyboard lock state is released by the C key timeout or by inputting a predetermined key as described above.

First, when it is identified by the key input timeout execution instruction flag 501 that the mode is to release the keyboard lock state after a predetermined period of time, the value of the time alarm i/setting counter 502 is stored in the delay counter 504, and this counter 504 is By stepping forward, you create time until the keyboard is unlocked.

When the delay counter 504 finishes counting and it is determined that it has timed out, if the keyboard lock instruction flag 505 is set to the locked state, when a predetermined key is input to release the key press, this The keystroke data in buffer 510 is retrieved and executed in the same manner as it was entered from keyboard 10, releasing the keyboard lock condition. In other words, the keyboard is unlocked by creating the same state as when the operator presses a key set as a release key. Also, at this time,
The function set to the release key is automatically executed.

On the other hand, if the key set as the release key is actually pressed, the keyboard lock state is released even before the delay counter 504 finishes counting.

Next, the above operation will be explained in more detail with reference to FIGS. 4(A) and 4(B). The steps in Figure 4 (A) and (B) are RO
It is stored in M40 as a control program for CPLI30.

In step S1 of FIG. 4A, key input on the keyboard 10 is detected by the keyboard interface 20, and keystroke data is stored in the key buffer 510.

Steps S2, S4, S6, S8, S10, S12, S
14, the keystroke data stored in the key buffer 510 is retrieved one by one and identified.

That is, in step S2, it is determined whether the stroke data is of a function key, and in step S4, it is determined whether the stroke data is of a predetermined key that instructs the key input timeout setting mode.

In step S6, it is determined whether the stroke data is for a key for which a key input timeout time is set in the key input timeout setting mode.

In step S8, it is determined whether the stroke data is for a key generated at the time of key input timeout.

In step S10, it is determined whether the stroke data is for a predetermined key that releases the keyboard lock state.

In step S12, it is determined whether the stroke data is that of a cancel key that cancels the input of a function key.

If any of steps S2, S4, S6, S8.5tO1S12 is affirmed, steps S3, S5,
The process moves to S7, S9, Sll, and 313.

In step S3, the characters corresponding to the function keys,
Performs output processing of symbols, etc.

In step S5, a flag 503 is set in order to perform key input timeout control, that is, control to automatically release the keyboard lock after a predetermined period of time has elapsed.

If the flag 503 is set, it is reset to prohibit time error control.

In step S7, the input time data for setting the time until timeout is assumed to be 0 time data stored in the timeout setting counter 502, which is input using numeric keys or the like.

In step S9, the keystroke data identified in step S8 is stored in the buffer 511 as keystroke data to be automatically generated upon timeout.

In step Sit, a keyboard lock release process is performed in response to pressing of a preset keyboard lock release key. Here, keyboard lock instruction flag 5
05 is reset, and if keyboard lock 0-11111.1p 7 occurs due to printing outside the margin, a margin release instruction SORAG 514 is set.

In step S14, a process is performed to cancel the process corresponding to the function key. If step 512 is negative, another function key input and corresponding processing are performed in step S14.If steps S8 and S9 have been passed in the previous loop, step S9 is performed to input the buffer 511. From key buffer 5
The keystroke data transferred to step 10 is interpreted and corresponding processing is automatically performed in step 314.

FIG. 4(B) shows the control procedure of the key reading routine of FIG. 4(A).

In step 5101 of FIG. 4(B), the presence or absence of a key input is determined by referring to the key person counter-506. −\
- If there is an input, the process advances to step S110; if there is no key input, the process advances to step 5102.

In step 5102, the key input timeout execution instruction flag 501 is referred to, and if the key input time is reached, the process advances to step 5103, and if 4 is invalid, step 5101
ni ni ni tate=gu;-37-1;-Return to Shichishi.

In step 5103, the key input timeout delay counter 505 is referred to to determine whether or not a key input timeout state exists. If the timeout occurs, the process proceeds to step 5105, and if the timeout does not occur, the process proceeds to step 5104.

In step 5104, the key input timeout delay counter 505 is updated.

In key input timeout processing, step 5101.1
In the loop from 03 to 5104, the key input timeout delay counter 505 is incremented, and step 510
If it is determined in step 3 that the timeout has occurred, the process advances to step 5105.

In step 5105, the keyboard lock instruction flag 5
05 is checked to determine whether the keyboard is locked. If the keyboard is to be unlocked, the process proceeds to step 5107 where the keyboard lock release key is input, and the keystroke data is stored in the buffer 511 at step 5111.

If it is determined in step 5105 that the keyboard is not locked, the process advances to step 5106, and the N-
With reference to the input timeout instruction key data, if it is determined that the function is to be canceled, the process proceeds to step 1108, where the desired function cancellation key is selected, and the process proceeds to step 5111.

If step 5108 is negative, step 510
At step 9, the key input timeout instruction key 503 is selected and the process proceeds to step 5111.

On the other hand, if there is a key input in step 5101,
In step 5110, the timeout counter 502
After setting the contents of the delay counter 504, the stroke data corresponding to the pressed key is stored in the buffer 511 in step 5111.If the timeout control is selected by the above control, the stroke data outside the margin/\\ The keyboard can be automatically unlocked after a certain period of time when the keyboard locks up, such as when trying to force printing.

Further, when automatically releasing the keyboard lock, preset keystroke data can be generated. For example, in the case of printing outside the margin, a keystroke of a margin release key can be generated.

The above example shows an example in which input is performed sequentially from the keyboard. However, there is a known technology in which frequently used character strings are registered in a phrase memory, etc., and the content is generated in response to the press of a specific function key. By adding timeout instruction key information to , it is possible to automatically release the keyboard lock when a phrase is automatically generated.

[Effects of the Invention] As is clear from the above, the present invention includes a keyboard and an information processing means for executing data processing corresponding to keystroke information inputted from the keyboard, and has a keyboard and an information processing means that executes data processing corresponding to keystroke information inputted from the keyboard, and when a predetermined condition is met. In the information processing device that prohibits key input from the keyboard, means for determining whether or not the key input is prohibited, and means for timing an arbitrary waiting time after key input until the next key input are provided. , when the waiting time set by the clocking means is counted and the determining means determines that the key input is prohibited, the key input prohibited state is canceled. Even in the prohibited state, key input is automatically enabled after a preset arbitrary waiting time, so there is an advantage that there is no need for the troublesome keyboard unlocking operation as in the conventional method.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the outline of the configuration of the present invention, Figure 2 is a block diagram showing an overview of the configuration of the present invention.
The figure shows the structure of an electronic typewriter adopting the present invention i1
．． FIG. 3 is a block diagram showing in detail the main parts of the control system of the device in FIG. 2, and FIG.
FIG. 3 is a flowchart showing an input control procedure of the device shown in the figure. 10...Keyboard 20...Keyboard interface 30...CP
[J 40...ROM 50...RAM501...
Key timeout execution instruction flag 502...Key timeout setting counter 503...Key timeout instruction key data buffer 504...Key timeout delay counter 505...Keyboard lock instruction flag 506...Key input counter 510... Key buffer 511...Keystroke data buffer 512...
-Key function instruction flag 513...Key internal code conversion data buffer 514...Margin release instruction flag 515...Carriage position register 516...Line position register 520...Register group 530...Pointer group 540 ...Collection buffer

Claims (1)

[Claims] 1) A keyboard and information processing means for executing data processing corresponding to keystroke information input from the keyboard, and information that prohibits key input from the keyboard when a predetermined condition is satisfied. The processing device is provided with means for determining whether or not the key input is prohibited, and means for timing an arbitrary waiting time after a key input until the next key input, and the waiting time set by the timing means is provided. An information processing device characterized in that, when the determining means determines that key input is prohibited during time measurement, the key input prohibited state is canceled. 2) An information processing device comprising means for automatically generating keystroke information when the key input prohibition state is released, and means for setting arbitrary information as the keystroke information.