JPS61262864A - Data storage unit - Google Patents

Abstract

PURPOSE:To make it possible to read data simply and quickly by comparing preset password with input password and reading and displaying prescribed data when coincidence of them is detected. CONSTITUTION:In case of timer timing, it is examined whether it is present data bank mode or not after timer processing is made, and when it is so, examination is made as to whether ER or OK is displayed at present or not. When ER display is made for more than 1.5sec, password input request is displayed, and made to the state of password inputting. When ER display disappeared within 1.5sec, a page read out finally last time is displayed. When there is key inputting, it is examined whether it is data bank reading mode or not, and if so, examination is made further as to whether it is the state of password inputting. When it is so, examination is made as to whether the input coincides with the password. When they coincide, it becomes a secret mode. If not, ER display is made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a data storage device such as a data bank.

[Prior art and its problems]

2. Description of the Related Art In recent years, data storage devices called data banks have been put into practical use, in which data such as telephone numbers and schedules are stored in advance in a memory, and data is arbitrarily read out from the memory and displayed. In this type of data storage device, the contents of the memory cannot be read unless a specific password is entered in order to ensure that data that is not known to others is kept secret. To retrieve secret data in memory, first operate the keys to specify the data input mode, then enter the user's unique password using the alphabet keys, numeric keys, etc. The secret key has to be operated in accordance with a series of key operation procedures, which increases the number of key operations and becomes cumbersome.

[Purpose of the invention]

The present invention was made against the background of the above-mentioned circumstances, and its purpose is to provide a data storage device that allows secret data to be read easily and quickly with a small number of key operations.

[Key points of the invention]

In order to achieve the above-mentioned object, the gist of the present invention is that a preset password and an input password are compared, and when they match, predetermined data is read out and displayed. It is something to do.

[Configuration of Example]

Hereinafter, the present invention will be specifically described based on an embodiment shown in the drawings. FIG. 1 is an external view of an electronic wristwatch with a data bank function. A keyboard 1 and a display device 2 are arranged on the front side of the watch case. On the keyboard 1, in addition to various keys that function as alphabet keys and numeric keys, there is also a cursor key 2, which reads phone numbers, etc. one page at a time from the memory that makes up the data bank in alphabetical order (forward direction). forward key
m, reverse alphabetical order (reverse direction) 1 (a reverse key El for reading is provided. Switches S1 and S3 are also provided on the side of the watch case.

This switch S1 is connected to a secret data storage area for storing data to be kept secret out of the memory 1 constituting the data bank, and a normal data storage area 1 for storing normal data. The switch S3 is a mode changeover switch that cyclically specifies the time-open mode, data bank write mode, and data bank read mode.

The display device 2 is constituted by a liquid crystal display device, and its lower display area is provided with a main digital display portion 2A constituted by an 8-digit H-shaped display. In addition, in the upper display area, there is a sub-digital display section 2B consisting of a 4-digit day-shaped display from the right side of the figure, a matrix display section 2C consisting of 5 digits, an AM display, a PM display, and other displays. A secret mode mark 2D is provided.

Next, the circuit configuration of this electronic wristwatch will be explained based on the first part. Stores microprograms that control operations and uses microinstructions OP, DO, NA
Output in parallel.

Here, the microinstruction OP is input to the instruction decoder 12, and the instruction decoder 12 decodes it to R, AM (
It is given as a data read/write command to the R/W input terminal of random access memory) 13, and
It is given to the S input terminal of 4 as an arithmetic command. Further, the microinstruction Do is sent to A6 of the RAM 13 via the data bus.
(The microinstruction NA is input to the lr input terminal as address data, and is also input to the DI2 input terminal of the calculation unit 14 as numerical data, and is further input to the address control unit 15.) The address data output from the address control unit 15 is the next address data stored in the ROM 11.
r input terminal.

The RAM 13 has a configuration including a numeric register, an arithmetic register, etc., and is used for timekeeping processing, key manual processing, arithmetic processing, etc., and executes data writing and reading operations under the control of the instruction decoder 120.
The data read from the O output terminal is D1 of the calculation unit 14.
1 input terminal and DI2 input terminal, and via the display control section 16. is displayed on the display section 17. The calculation unit 14 executes various calculations according to calculation instructions from the instruction decoder 12, and the calculation result data is R.
It is applied to the DI input terminal of AM13 and read into RA and M13. Furthermore, when executing a judgment operation, the calculation unit 14 outputs a signal indicating the presence or absence of data as a result of the operation and a signal indicating the presence or absence of carry generation, and outputs a signal to the address control unit 15.
to convert the address of ROM1l. In addition, the address control unit 15 also receives a signal of
A clock clock of 6.Z is input, and according to this %Hz signal, a clock process is executed by interrupting once every second. Further, the predetermined frequency signal outputted from the frequency dividing circuit 19 is given to a timing generator 20, which causes the timing generator 2° to output various timing signals and supply them to each circuit. Further, the key code output from the key input unit 21 is given to the DI2 input terminal of the calculation unit 14.

FIG. 4 shows the main parts of the RA and M13, and the RAM 13 has a storage area in which clock data, system control data, and other data can be freely written by the user in response to key operations. That is, the RAM 13 is provided with a secret data storage area and a normal data storage area as shown in FIG. A flag register Fm stores a flag specifying a password, a flag register Fa stores a flag to enable password input, a counter C counts the number of digits input for a password, and indicates whether a password is not registered or a password is registered. A flag register PW in which a flag is stored, a password storage section Z in which a preset password is stored, a memory "N" that stores the number of data in the secret data storage area, a memory "N" that stores the number of data in the 1 normal data storage area, There are provided a memo IJPEI for storing the number of displayed pages in secret mode, a memo IJP for storing the number of displayed pages in normal mode, a register Y for calculating the register X1, and a display time timer for measuring the display time. , in this example,
The secret data storage area and the normal data storage area store phone numbers required by the user. Phone numbers that are not known to others are stored in the secret data storage area, and other phone numbers are stored in the normal data storage area. The data written to both storage areas are names (4 alphabetic characters),
One page contains telephone numbers (area code, area code, number), and is edited and stored in alphabetical order of name.

[Operation of the embodiment]

Next, the operation of this electronic wristwatch will be explained with reference to FIGS. 5 to 9. 5 to 8 are flowcharts for explaining the operation, and FIG. 9 is a display state diagram. In addition,
In Figure 9, A surrounded by a broken line indicates the reverse key, the forward key, and the forward key in normal mode.
In addition, B surrounded by a broken line indicates the display state that changes according to the operation of the reverse key m and the forward key W in secret mode, and furthermore, C -1 to C-4 are
This shows the display state when switching from the normal mode to the secret mode or from the secret mode to the normal mode by operating the switch Sl. In FIG. 9, broken line arrows indicate switching by switch operation, and solid line arrows indicate automatic switching.

First, an overview of the overall operation will be explained with reference to the general flow shown in FIG. When entering this general flow, step S1 is executed, and the system is in a standby state until there is a request for timing or key manual input. Now, when a 16 Hz time clock is output from the frequency dividing circuit 19, the process proceeds to step S2, and time measurement processing and display processing are executed every second.

Furthermore, when the key code corresponding to the operation key is output from the key human power unit 21, a corresponding key processing program is specified, and switch processing and display processing are executed (
Step Ss).

FIG. 6 is a flowchart showing specific details of the time measurement process and display process (step S2) shown in FIG. When entering this flow, time measurement data is read from the T register in RAMIa, time data of a predetermined unit is added to obtain the current time, and the current time is transferred as new time measurement data to the T register (step 811). Then, in the next step 812, it is determined whether the mode is data bank mode (data bank write and read mode).
If it is in the data bank mode, it is checked whether "E RROR" or "OK" is currently displayed (step 513).
). Here, "ERROR" is an error display when a mismatch between the preset password and the input password is detected, and "OK" is the error display when a mismatch between the preset password and the input password is detected. This is the display symbol when a match is detected (Figure 9 C-3,
(See C-4).

However, if neither "ERROR" nor "OK" is currently displayed, this process flow ends, but if either of them is displayed, the process advances to the next step 814 and the RAM 13 is The measurement operation of the display time timer is started.

Then, it is determined whether the measured time (display time) of this display time timer has elapsed for 1.5 seconds (step 815).
. Here, if 15 seconds have not elapsed before the "ERROR" or "OK" display has elapsed, the display time timer continues to measure until that time elapses, but when 1.5 seconds have elapsed, the process moves to the next step S16. When the display symbol "OK" is displayed for 1.5 seconds, the process advances to step S17, and the data of the last page read from the secret data storage area of the RAM 13 is displayed. Ru. That is, when the display symbol "OK" is displayed for 1.5 seconds in the data bank mode, the display contents are automatically switched to display the secret data of the last page read last time. Further, when the display symbol "ERROR'" is displayed for 1.5 seconds, "NO'i"' is displayed in step S1, and then, in step S19, an initial password input state is displayed. Figure 9 C-2 shows this state, and in addition to instructing the input of a password (four digits in this example), a cursor "-" is displayed corresponding to each digit to indicate the input method. At the same time, the first digit cursor "-" flashes at 111z. Then, the process proceeds to step S20, and a flag ``indicating a state in which password input is possible is set in the flag register Fa.''
1'' is set. On the other hand, if the clock mode is selected, this is detected in step 812 and the process proceeds to step 821, where time display processing is executed.

FIG. 7 is a flowchart showing the specific contents of the switch processing display process J' (step S3) shown in FIG. First, when entering this flow, the key code corresponding to the operation key is loaded into the X register (step S3□
). Then, it is checked whether the data bank read mode is present (step 532).

If the mode is data puncture read mode, it is checked in the next step S33 whether the password can be entered based on the contents of the flag register pa, but initially, the register pa is cleared, and as a result, the process goes to step S34. Then, it is determined whether the switch S1 has been operated. Here, the switch 81 is used to switch between normal mode and secret mode as described above, and when this switch S1 is operated, it is determined whether the setting mode is normal mode or secret mode (step 535).
). Now, when switching from normal mode to secret mode, the password input flag is set to register p.
a (step 836). Once the password input is possible, it is then determined whether the password has already been registered or not registered according to the contents of the register PW, and if the password has not been registered, step SSS is performed.
After the 1'-8 ETJ display is performed, the password input state initial display is performed (step 840).
.

FIG. 9C-1 shows the display state at this time, and it is instructed that a password should be registered. Also, if the password has already been registered, proceed to step SSa and enter NO? ” After the display is performed, step 84 is performed as in the case described above.
Go to 0. Figure 9 C-2 shows the display state at this time,
You will be prompted to enter your password. When such display processing is executed, the process advances to the next step 841.
The initial value "1" is set in the counter C, and thereby the first digit of the password is set to be inputtable.

However, the above-mentioned "SET" display or "No?"
After confirming the display, enter the password. The password is now set to be ready for input, so go to step S.
Proceeding from SS to step S45, register X is set to "0" ~
It is determined whether the numerical value "9" has been entered, that is, whether the numeric keypad has been operated. It is assumed that the password is entered as a four-digit number, and that the first digit is entered first, then the process advances from step S45 to step 846, and a check is made to see if the value of counter C has become "4". However, since it is initially "1", the process advances to step 847.

Here, the digit YQ% of the register Y corresponding to the value of the counter C is initially transferred to the first digit. After incrementing the value of the counter C by 1 (step 848), the input number is displayed, and the cursor position moves to the next digit and is displayed blinking (step 549). Initially, the first digit number is displayed and the second digit cursor is displayed blinking. When the numbers from the second to fourth digits are input in sequence, the above-mentioned process (steps 847 to 549) is repeatedly executed, and the value of the counter C becomes "4".
A four-digit numerical password is sequentially set in the corresponding phase of the register Y, and is digitally displayed on the display section 17.

When you have finished entering your password in this way,
Since the value of counter C is "4", step S
The process advances from step 46 to step 350, where the contents of the register pa are cleared and the password entry enabled state is released. Thereafter, the initial value "1" is set in the counter C (step 551). Then, it is determined whether the password is registered or unregistered based on the contents of the register PWO (step 55).
2). Assuming that a password has already been registered, the input password stored in the 1st to 4th digits of register Y0 (Yl to Y4) and 1 in password storage Z
The passwords set and registered in advance in the digits 1 to 4 (Z1 to Z4) are compared, and a match is detected (step 554). Here, if the number of the input password is different from the set password, the process advances to step S54, where "ERROR" is displayed, and then the measurement operation of the display time timer is started (step 555).
11JC-4 shows the display state at this time. Furthermore, if a mismatch is detected in steps S and R3, the process advances to step 857, where "OK" is displayed. FIG. 9C-3
indicates the display state at this time. Then, in the next step SSa, "1" is set in the register Fm to switch to the secret mode, and then the measurement operation of the display time timer is started (step 559).

On the other hand, if an unregistered password is detected in step S52, the process proceeds to step SSS, and the input passwords in Y1 to Y4 are transferred to Z1 to Z4 and registered. When the password registration is completed in this way, step S5□ is executed in the same way as when the passwords match as described above, and the display state is similar to that shown in FIG. 9 C-3. Then, steps 858+859 are sequentially executed Ru.

Furthermore, as explained in Fig. 6, E'RROf''OK
"The display will continue until 1.5 seconds have elapsed, but when the display is displayed for 1.5 seconds, the OK display will automatically switch to the secret data display state, but the "ERROR"
The display returns to the display state shown in FIG. 9 C-3, and the initial display of the password input state is performed again, and the register FL
LK"1" will be set. Therefore, −
Even if the password is entered incorrectly, if the correct password is entered again, the secret data display state will automatically change from the display state shown in FIG. 9C-3.

At this time, as described above, the data of the page that was first read last time is displayed.

On the other hand, in the flow of FIG. 7, when the switch S is operated in the secret mode, the process proceeds from step S35 to step S42, the contents of the register Fm are cleared and set to normal mode, and then the display processing (step 543) is executed.

Also, in the data bank read mode, the switch S1
keys other than, for example, forward keys d, IJ
If it is assumed that the key is operated, the process proceeds from step 834 to step S44, where key processing and display processing other than password input, which will be described in detail later, are executed.

Further, in a mode other than the data bank read mode, that is, the clock mode or the data bank write mode, step S32 is performed.
The process then proceeds to step SaO, where other mode switching processing, such as mode switching processing and data pledge processing for the secret data storage area and normal data storage area in the RAM 13, is executed.

FIG. 8 is a flowchart showing specific details of key processing and display processing (step 544) other than password input shown in FIG. First, when entering this flow, the operation state of the forward key d is determined in step S71, and when the forward key m is operated, it is determined whether the mode is secret mode or normal mode (1f step 872). If the mode is currently secret mode, the number of displayed pages in the memory Ps is incremented by 1 (step 873). As a result, it is determined whether the number of pages in the memo IJPB matches the number of data in the memory n, that is, whether it is the last page (step 574). As a result, if it is not the last page, the secret data on that page is readable. If it is the last page, the process advances to step S7s, and "1" is transferred to the memory P8, whereby the secret data of the first page is read out and displayed (step 876). In this way, each time the forward key IWl is operated, the above-mentioned operation is repeatedly executed, and as a result, as shown in FIG.
As shown in the figure, the secret data in the secret data storage area is read out alphabetically one page at a time and displayed cyclically. On the other hand, when the forward key TW■ is operated in the normal mode, step 8 corresponds to steps 873 to S76 described above.
77 to Sso are sequentially executed. As a result, the 9th ffi
As shown in A-1 to A-5, normal data in the normal data storage area is read out one page at a time in alphabetical order and cyclically displayed.

When the reverse key 1m is operated, this is detected in step Sal, and the process proceeds to step S82, where it is determined whether the mode is secret mode or normal mode. If you are currently in secret mode, use Memo IJ
The page number of Ps is decremented by 1 (step 583), and as a result, it is determined whether the content of the memo IJPs is 10. If you roll it with rOJ, the secret data of that page will be displayed, but 0'', the number of data in memory n is transferred to memory P, and the secret data of that page is displayed (steps 884-586).

As a result of the above-mentioned operation being executed each time the reverse key is operated, the contents of the secret data storage area are read page by page in reverse alphabetical order, as shown in MB-4 to B-1. and displayed in cyclic 1 sequentially. On the other hand, when the reverse key 匝 is operated in the normal mode, the step Sa3 described above is
As a result of executing steps 887 to 890 corresponding to S86, respectively, the contents of the normal data storage area are read out in reverse alphabetical order and displayed cyclically and sequentially, as shown in FIG. 9A, -5 to A-1. be done.

On the other hand, forward key m, reverse key m
If a key other than the key is operated, the process advances to step 891, and key processing and display processing corresponding to that key are executed.

As described above, in this embodiment, when reading secret data in the data bank read mode, the password is input after operating the switch S1 to switch from the normal mode to the secret mode. At this time, when the preset password and the input password match, the secret data of the last page read last time will be automatically displayed after a certain period of time has passed. For this reason, the number of key operations and the number of keys used are fewer than in the past (as a result, it is possible to easily and quickly switch to displaying secret data, and there is no restriction on the mounting space of the switch when using the 11 as a child watch). It's good for some things.

Also, after entering the password, the secret data is not displayed immediately (the secret password is displayed for a predetermined period of time, so you can fully confirm the entered password down to the last digit).

In addition, if a password is entered incorrectly, the error display remains for a predetermined period of time and then automatically switches to a state in which the password can be entered again, eliminating the need for key operations in the event of an incorrect entry. In addition, it becomes possible to quickly correct the password.

Note that the present invention is not limited to the above-described embodiments, and can be modified and applied in various ways without departing from the scope of the present invention.

For example, in the above embodiment, the secret data storage area and the normal data storage area are separated into separate areas.
In this way, a flag may be provided for each piece of data without dividing the area, and if the flag is "0", it is normal data, and if the flag is "1", it is classified as secret data.

〔Effect of the invention〕

As explained in detail above, this invention compares a preset password with an input password, and when a match is detected, predetermined data is read out and displayed. Therefore, it is possible to read out data easily and quickly compared to the conventional method of reading and displaying secret data using a series of key operations.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a block circuit diagram of an electronic wristwatch with a data bank function to which the present invention is applied, FIG. 2 is a plan view of its external appearance, and FIG. 6 is a configuration diagram of a display section. FIG. 4 is a main configuration diagram of the RAM, FIGS. 5 to 8 are flowcharts for explaining the operation, and FIG. 9 is a display state diagram. 11...ROM, 13...RAM, 1
4... Arithmetic unit, 17... Display unit, 21
...Key human resources department. 2A Figure 3 Figure 4 Figure 5 Figure 1 Power Figure 6

Claims (1)

[Claims] a data storage means for storing a plurality of data; a display means for displaying the data stored in the data storage means; a password input means; a password storage means for storing a preset password; and the password input means. a comparison means for comparing the password inputted in the password storage means with a password stored in the password storage means; and when a match between the passwords is detected by the comparison means, predetermined data is read from the data storage means and displayed on the display. 1. A data storage device comprising read control means for displaying information on a data storage device.