JPH0335343A - Electronic equipment - Google Patents

Abstract

PURPOSE:To reduce the possibility for execution of erroneous resetting actions and also to facilitate the operation of an electronic equipment by operating >=2 normal input keys in the prescribed order. CONSTITUTION:A means 1 is prepared to detect that at least two prescribed keys are operated in the prescribed order out of those input keys 31 - 42 together with another means 1 which actuates a reset means when the operations of the keys are detected. That is, all present states are disused regardless of any type of the state under processing when a RESET key 41 is pushed. Then all user data are erased with push of a register key 35. At the same time, an electronic equipment is reset when a memory check key 38 is pushed twice in some function mode and then a deletion key 39 is pushed. As a result, the electronic equipment can be easily reset and at the same time a resetting action due to an inadvertent operation can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronic device, such as a so-called electronic memo, equipped with a plurality of input keys.

(Prior Art) Electronic devices such as calculators and electronic memos are provided with a plurality of input keys, and the electronic devices operate according to the operations of these keys. In addition, such electronic equipment has a function to forcibly set the state of the electronic equipment to a predetermined state as necessary (for example, a function to set the state of the electronic equipment to the same state as it was immediately after immersion in 74'FA; in this specification, such a function is used). The function will be referred to as "reset".

By performing this reset, the state of the electronic device is forcibly changed to another state, so for example, if the reset is performed by mistake while inputting data that should be stored, the entered data may be lost. Become. For this reason, the reset command is usually issued by operating a special switch called a reset switch, which is constructed or located in such a position that it cannot be easily operated. For example, in a portable electronic device such as an electronic memo, the reset switch is provided on the back side of the device body and cannot be operated without using an instrument such as a pencil with a thin tip.

(Problems to be Solved by the Invention) Due to the special structure and arrangement of the reset switch as described above, a large amount of data will not be inadvertently lost due to the reset operation. However, this is extremely inconvenient for an operator who actually attempts to perform a reset operation.

The present invention has been made in view of the current situation, and its purpose is to provide a means for resetting that is less likely to be performed by mistake and that can be operated more easily than before. Our goal is to provide electronic devices with

(Means for Solving the Problems) An electronic device of the present invention is an electronic device including a plurality of input keys and a reset means, wherein at least two predetermined keys among the plurality of input keys are set to a predetermined value. means for detecting that the predetermined keys have been operated in a predetermined order, and means for activating the reset means when the predetermined key operations are detected in a predetermined order, thereby achieving the above purpose. .

(Example) The invention will now be described with reference to examples.

FIG. 1 shows the configuration of an embodiment of the present invention. This example is
Although the electronic memo can have many functions, in order to simplify the explanation, it will be described below as having only three functions: a schedule function, a telephone directory function, and a calculator function.

Each part of this embodiment shown in FIG. 1 will be explained. The CPUI controls the entire electronic device by executing a program stored in the program ROM 2. The work RAM 3 is a RAM used as a work area when the CPUI performs processing. C, G, RoM4
is a ROM that stores character patterns for display.

The display unit 5 is composed of an LCD, and is a part that displays symbols such as characters and figures.
It has the number of characters displayed in the column. The upper part of the display part 5 is a dot part 5a in which one character is composed of 5.times.7 dots, and the lower part is a segment part 5b having a 7-segment structure (see FIG. 8, etc.). The LCD driver 6 is a part that converts the character pattern in the display RAM 7 into an electrical signal for driving the display section 5 and provides the electrical signal to the display section 5 . Each 1 btt of the display RAM 7 corresponds to one pixel of the display section 5, and when a display pattern is set in the display RAM 7 by the CPU, the display pattern is converted into an LCD drive signal by the LCD driver 6. The information is sent to the display section 5, and the display state of the LCD of the display section 5 is updated.

The communication unit 8 is a part that transmits and receives data to and from other devices. The key part 9 is provided with a large number of keys, and is a part that detects the presence or absence of human keystrokes and transmits the result and the type of key operated to the CPUI. The types of keys in part 9 will be explained later. The data RAM 10 is a part that mainly stores data registered by the user, and the user data storage part 10c stores the user's data.
An input/output buffer 10a that temporarily stores data input by the user and data retrieved from the user data storage lOc, and a data management area 11 that manages data stored in the user data storage 10c.
It has 0.

FIG. 2 shows details of the data RAM10. In this embodiment, the user can register two types of data: telephone directory data (hereinafter sometimes referred to as location data) and schedule data (hereinafter sometimes referred to as SCHD data). The data includes name part, company name part,
It consists of three parts: the number part. The 5CHD data is composed of six parts: the subject part, the rod part, the circumferential part, the mouth part, the time part, and the bone part. The region from the rod portion to the bone portion is indicated by reference numeral 105 in FIG. The input/output cover 10a temporarily stores the contents of each of these parts, and the name part 101. Company name section 102, number section 103, message section 104, and year/month/day/hour/minute section 1
It has 05 areas. The number of used bytes/remaining bytes area 106 of the data management area 10b contains the number of bytes of the area already used by the user in the user data storage section 10c (i.e., the number of bytes of the storage data section 109 and the S CHD data section, which will be described later). 110) and the number of bytes of the free area 110, which will be described later. The location data number/5CHD data number section 107 stores the number of data registered as location data or 5CHD data. Reference numeral 108 indicates an area for other data necessary for managing the memory. The user data storage section 10c includes a location data section 109 that stores data registered as location data, and an SCHD data section 11 that stores data registered as 5CHD data.
It has 0. Furthermore, the free area 111 is an unused storage area. Since the location data and 5CHD data are data of undefined length, the number of occupied bytes per 1 data is not determined. Therefore, the position data section 109 and S CH
The D data section 110 is dynamically allocated and expands and contracts as new data is registered and deleted. In these data sections, there is no space between data, and the data is always stored in a left-justified format. Furthermore, regarding the order of the registered data, the location data is stored in the name part Illi (50 syllabary), and the 5CHD data is stored in the ascending order of year, month, day, hour, and minute.

Some of the keys provided on the key part 9 are shown in FIG. The functions of these keys will be briefly explained.

The function key 31 functions as a so-called r2nd FUNCTIONJ key that gives a second function to other keys, and is a key that is pressed before operating each key as necessary. M
The ODE key 32 is used for a position mode, a 5CHD mode, and a CAL-T mode for executing the main functions of this embodiment, such as a telephone directory function, a schedule function, and a calculator function, respectively.
)'(7) This key is used to select the desired mode from among the three modes. The ON/C key 33 functions as a normal power key when the power is off, and as a key for returning the display state to the initial state when the power is already on. The OFF key 34 is a key for turning off the power of the device. The registration key 35 is a key for registering data input by the user in the user data storage unit lOc. The call key 36 is a key for calling up data registered in the user data storage section 10c and displaying it on the display section 5. The communication key 37 is a key used when communicating with other sets. Memory check cow-38
is the key used when you want to display the memory usage status. The delete key 39 is a key used to delete input characters, input data, and the like.

The character input keys 40 are a group of keys for inputting numbers (0-9), katakana, alphabets (A-Z), and symbols (+, -, etc.), and are used when inputting characters. Name/company name-42 is used when calling by company name in the place mode. That is, this embodiment has a function to call up data with a matching name and a function to call up data with a matching company name in the setting mode, but the name/company name key 42 is a key used to activate the latter function. It is. The RESET key 41 is a key for forcing the entire system into a certain state (temporarily referred to as a reset state). This key 41, unlike other keys, is directly connected to the hardware of the CPUI, and can operate the CPUI by inclination, no matter what state the CPUI is in. In other words, other keys cannot provide signals to the CPUI except when the CPUI requests input.

FIG. 4 shows a schematic flowchart of the processing in this embodiment. First, in this system, when the user does nothing, APO (Auto Power) is activated in step S2.
r 0ff) Waits for user's key input while counting. If there is no key input for a certain period of time, is this to save power? l# is automatically shut off. The APO count is a time count for this purpose. When any key is pressed, the key part 9 sends a signal indicating that the key is manually pressed and a code indicating the type of key pressed. The flow is
Proceeding to step S2, the process to be performed is selected according to the type of key pressed. Then, processing of the pressed key is performed in step S3.

In the various key processing routines in step S3, CP
Work R according to the contents of program ROM2 using the UI
Processing is performed using AM3, communication unit 8, data RAM 10, etc., and then the process proceeds to a display routine (step S4).
.

In the display routine, in order to display the digits instructed by the various key processing routines, the character pattern of the character to be displayed is taken out from the CGROM 4 and set in the display RAM 7 at the position of the digit to be displayed. The character pattern stored in the display RAM 7 is converted by the LCD driver 6 into an electrical signal for driving the LCD, and displayed on the display section 5.

When the display process in step S4 is completed, the flow returns to step S1 to wait for the next key. ON/C key 3 when the power is off
If 3 is pressed, the flow is forced to step S.
It is possible to start from 5. Here, the setting mode is selected as the main function, and the process proceeds to step S6, the C key process (FIG. 5).

FIG. 6 shows the flow of C key processing. Here, an initial state is set for the currently selected mode, and then a display routine corresponding to the selected mode is selected and control is transferred thereto. The initial state of each mode is shown in FIG.

When the RESET key 41 is pressed, control is transferred to step S7 (FIG. 4) regardless of which state the flow is processing. Here, as shown in FIG. 7, all current states are abandoned and a reset state is set. And step S4
The process moves to the middle RESET display routine. FIG. 8 shows the reset display. The state shown in FIG. 8 is the data management area 10b of the data RAM 10 and the user data storage section 10c.
This state allows the user to select whether or not to initialize by erasing all user data stored in the .

Here, when a predetermined key representing rYEsJ (registration key 35 in this embodiment) is pressed, all user data is erased. If a key other than the predetermined key is pressed, the deletion and initialization processing is not performed and the process moves to the C key processing (step S6).

Next, the processing of each key will be explained.

FIG. 10 shows the processing of the OFF key 34. OFF key 3
If 4 is pressed, the display on the display section 5 is erased and the system is turned off. This electronic memo will now stop working.

However, since the data RAM 10 is operated by a separate power source, the user data registered in the data RAM 10 will not be lost. Also, after turning off the power to the system, POWE the program counter in CPU1.
Set it to the address for R-ON processing. As a result, the next time the ON/C key 33 is pressed, the POW
Processing is started from ER-ON processing.

FIG. 11 shows the processing of the function key 31. When the function key 31 is pressed, display/non-display of the function symbol 13 disposed on the left side of the display section 5 is switched as shown in FIG.

FIG. 12 shows the processing of the character input keys 40, and FIG. 14 shows an example of character input using the character input keys 40. In this embodiment, approximately 100 types of katakana, alphabets, numbers, and symbols can be input, and for this purpose, 17 keys are provided as character input keys 40. When any of the character input keys 40 is pressed, in step S21), an internal code corresponding to the pressed key is generated. Then, the pointer indicating the current cursor position in the work RAMa (that is, the position where the character is manually entered) is retrieved, and the input/output buffer l
Write the above internal code at the position indicated by the pointer in oa. The pointer used here to indicate the cursor position is initialized when the initial state of the mode is set, and is incremented each time a character is input. Then step S
At step 22, similarly to the display routine (step S4), the routine advances to a routine in which the character code in the input/output buffer 10a is developed into a character pattern using the ROM 4, and the character code is written into the display RAM 7. FIG. 14 shows an example of inputting characters from the initial state of the text mode, and IBM on the right side of the figure indicates the character string input to the name field in the human output buffer 10a. FIG. 14(a) shows the initial display, at which time lB
s1 does not contain anything, that is, it is NULL. If the character "A" is entered manually using the character input key 40, "A" is entered in IB, and the display becomes as shown in FIG. 14(b). Here, the under par "-" on the right side of the "A" display indicates the cursor position (ie, the position where the next character will be input). If "force" is further input, "force" is added to IBH, and the display becomes as shown in FIG. 14(C).

FIG. 15 shows the processing when the MODE key 32 is pressed. When the MODE key 32 is pressed, it is first checked whether the function symbol 13 (FIG. 13) is lit (step 531). If the function symbol 13 is not lit, the type of function mode to be set next differs depending on the type of the current function mode (step 532).

That is, if the current function mode is the position mode, 5CHD
The mode is set (step 533), and if the current function mode is 5CHD mode, the CALA-mode is set (step 534), and if the current function mode is CALA-mode, the position mode is set (step 534). step 535).

Therefore, each time the MO/DE key 32 is pressed, the mode is
As shown by arrow A in FIG. 9, switching is performed cyclically and sequentially in the following order: position mode → 5CHD mode → CAL mode → position mode (this order is referred to as the forward direction).

If the function symbol 13 is lit (displayed), the process advances to step S36, and if the current function mode is the setting mode, the CALA-code is set (step S53).
7) If the current function mode is S CHD mode,
If the current function mode is CALA mode, the 5CHD mode is set (step 539). Therefore, each time the MODE key 32 is pressed, the mode changes as shown by arrow B in FIG.
The mode is cyclically switched in the following order (this order is referred to as the reverse direction): position mode -> CAL mode - 5CHD mode -> position mode.

In this way, without pressing the function key 31, the MODE key 3,
When 2 is operated, the mode is sequentially switched to forward direction A.

On the other hand, when the function key 31 is pressed and the MODE key 32 is operated, the mode is sequentially switched in the reverse direction B. Therefore, when switching from setting mode to CALA mode, 5CH
You can switch to CALA mode without going through D mode. In this case, the MODE key 32 only needs to be pressed once.

The flowchart of the process performed when the memory check key 38 and the delete key 39 are pressed is shown in FIGS. 16 and 1.
Each is shown in Figure 7. Further, FIG. 19 shows an example of changes in the display state by operating these keys.

When the memory check key 38 is pressed, first, it is checked whether the electronic device is in the memory check state, that is, in the memory usage display state shown in FIG. 19(b) or in the registered data count display state shown in FIG. 19(C). It is determined whether or not (step 54
1). If the memory check is not in progress, the process currently in progress (in FIG. 19(a), data input processing for the name section is being performed) is abandoned, and a routine for memory check is started ( Step 542). Next, in step S45, the number of used bytes/remaining byte bottom part 106 (second
(see figure) is read out. Thereafter, a display as shown in FIG. 19(b) is performed in the memory usage display routine.

If the memory check is in progress, it is determined in step S43 whether the electronic device is in the state of displaying the number of registered data items.

If the number of registered data items is being displayed, the process moves to step S45. If the number of registered data items is not being displayed, that is, if the memory usage amount is being displayed, in step S44, the number of registered data items/
The data in the 5CHD data count section 107 (see FIG. 2) is read out. Thereafter, the read data is displayed in a format as shown in FIG. 19(C) by the registered data count display routine. In this way, the operation of the memory check key 38 during the memory check results in switching between the display of the memory usage amount and the display of the number of registered data items. ) In Figure 19 (1)), the number of used bytes and the number of unused bytes are 175 bytes and 175 bytes, respectively.
It is displayed that it is 7985 bytes. In addition, in Figure 19 (C), the number of registered location data and 5CH
It is displayed that the number of D data items is 37 items and 12 items, respectively.

When the delete key 39 is pressed, step S51 is first performed.
It is determined whether or not a memory check is in progress. If a memory check is not in progress, it is determined in step S53 whether data is being recalled. If data is not being retrieved, the character entered at the cursor position is deleted (
Step 554). If the data is being called, the data being called is deleted in step S55. When deleting data, the display shown in FIG. 18 is displayed, and the user is required to make a final confirmation as to whether or not to permit data deletion.

If it is determined in step S51 that a memory check is in progress, it is determined in step S52 whether or not the number of registered data items is being displayed. If the number of registered data items is not being displayed, the C key process described above is performed. When the number of registered data items is being displayed, the above-described reset process is performed in the same way as when the RESET key 41 is pressed.

From the above, it can be seen that in this embodiment, if the memory check key 38 is pressed twice and the delete key 39 is pressed subsequently in any function mode, the electronic device is reset. Since it is thought that such a series of operations will not be performed by mistake during normal use, the possibility that the user will reset the electronic device against his/her will is extremely small. Nevertheless, when attempting to reset an electronic device, it is very convenient because the purpose can be achieved using ordinary input keys that do not require any special equipment or the like. Furthermore, in this embodiment, since the number of registered data items is displayed before the reset process is performed using the delete key 39, there is little risk that a large amount of data will be inadvertently deleted.

(Effects of the Invention) In the electronic device of the present invention, by operating two or more normal input keys in a predetermined order, without operating the strictly protected reset dedicated switch found in conventional electronic devices. Devices can be easily reset.

Therefore, an electronic device is realized in which the operability of the reset operation is improved while avoiding the risk of resetting due to careless operation.

4 no na! ■ Fig. 1 is a block diagram showing the configuration of an electronic memo that is an embodiment of the present invention, Fig. 2 is a schematic diagram showing the structure of the data RAM of the embodiment, Fig. 3 is a diagram showing various keys, FIG. 4 is a flowchart of the process of the embodiment, and FIG.
A diagram showing the flow of OWER-ON processing, Figure 6 is C
A flowchart of key processing, FIG. 7 is a flowchart of reset processing, FIG. 8 is a diagram showing a reset display, FIG. 9 is an explanatory diagram showing modes of mode switching, FIG. 10 is a diagram showing a flow of function key processing, Figure 11 is a flowchart of OFF key processing, Figure 12 is a flowchart of character input key processing, Figure 13 is a diagram showing function symbols, and Figure 14 is a flowchart of OFF key processing.
Figure 15 is a flowchart of MODE key processing, Figure 16 is a flowchart of memory check key processing, Figure 17 is a flowchart of deletion key processing, and Figure 18 is a flowchart of data input. FIGS. 19(a) to 19(d) are diagrams illustrating displays for confirmation at the time of deletion, and are diagrams illustrating an example of changes in display due to operations of a memory check key and a delete key.

that's all

Claims (1)

[Claims] 1. An electronic device comprising a plurality of input keys and a reset means, a means for detecting that at least two predetermined keys among the plurality of input keys have been operated in a predetermined order; An electronic device comprising means for activating said reset means when an operation of said keys in a predetermined order is detected.