JPS6294678A - Electronic key apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic key device that opens and closes a lock in a non-contact manner using radio waves, light, ultrasonic waves, etc.

[Conventional technology]

Traditionally, security devices such as doors and gates of buildings and rooms, car doors, doors and lids of safes, desks, lockers, drawers, etc. have been equipped with locking mechanisms using mechanical locks and keys. . This is a combination of mechanical information such as the unevenness inside the lock, the length and position of pins and cylinders, or their presence or absence, and mechanical information such as the unevenness, length and position of the key, or their presence or absence. The locking mechanism is released and the lock is opened only when the combinations of the above are mechanically or dynamically matched.

In addition, recently, instead of the above-mentioned mechanical locking mechanism using a lock and key, a locking device using electronic control has been developed. For example, such a locking device is equipped with a plurality of numerical buttons on the side of the gun, and by pressing the button corresponding to a predetermined number, electrical signals (e.g., voltage level, current level, on/off, etc.) can be generated. ) electronic information (“
1", "O") and attempt to open and close electrically without a key. Also known are devices that can be opened and closed contactlessly from a distance by remote control using radio waves, and devices that use a magnetic stripe card with an encryption code recorded on magnetic tape.

[Problems with conventional technology]

The conventional device described above has a problem in that if the locking mechanism does not release even after performing an operation to release the locking mechanism, the operator cannot know the reason why the locking mechanism is not released. Ta.

[Purpose of the invention]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to provide an electronic key device that allows the user to know the reason and the like when the lock mechanism is not released.

[Key points of the invention]

In order to achieve the above object, when an encryption code is transmitted to an electronic lock, the present invention sends a response signal from the electronic lock to notify the result of the transmission, that is, whether the encryption code is passed, incorrect, or an error in the transmission of the encryption code. It is made so that it can be received.

[Embodiments of the invention]

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

FIG. 1 is an external perspective view showing an embodiment in which the present invention is applied to a wristwatch. In the figure, the wristwatch main body 1 is
It is comprised of a display section 2 consisting of a liquid crystal display or the like, and a key operation section 3 including a group of various keys 3a. On the side end surface of the display section 2 is a key S+.

S2. S3. An LED 4a and a photodiode 5a are provided. These keys S l, S 21S
3 and the equal (=) key 84 in the key group 3a.
Minus (-) key 35. The plus (+) key S6 has a function of switching the display mode of the display section 2, as will be described in detail later.

Next, FIG. 2 is an external perspective view of the jewelry box 10 whose locking mechanism is released by the electronic key function according to this embodiment. The jewelry box IO is composed of a main body 11 and a lid 12.
2 is attached to the main body 11 by a hinge or the like (not shown) so that it can be opened and closed. Moreover, inside the lid body 12,
A locking protrusion 13 is provided that engages with an engagement portion (not shown) provided inside the main body 11. These act as a locking mechanism in which when the lid body 12 is closed, the engaging portion and the protruding portion 13 are engaged with each other, thereby automatically locking.

Furthermore, a digital switch 14 is attached to the inside of the lid 12 and is electrically connected to the locking mechanism described above, which rotates four dials to match the numbers. Further, on both sides of the keyhole 15, a photodiode 16a and an LED 17a are provided so as to be equal to the distance between the LED 4a and the photodiode 5a of the wristwatch.

In such a jewelry box 10, the digital switch 1
4 (ro 425J in Figure 2)
) is output from the LED 4a of the wristwatch shown in FIG. 1 and received by the photodiode 16a, or the locking mechanism is released only by a predetermined key in the keyhole 15. It has become so.

Furthermore, the output result when outputting the above encryption code is LE
D17a and received by the photodiode 5a of the wristwatch.

FIG. 3 shows the circuit configuration of the wristwatch main body 10 shown in FIG.

In FIG. 3, ROM 21 is a fixed memory that contains programs and data that control the entire system. The address control section 22 is an address section of the ROM 21 that measures the program flow.
, the outputs of the arithmetic unit 25 and the frequency dividing circuit 27 are input. The RAM 23 transfers the data stored in the address specified in the ROM 21 to the arithmetic unit 25 and the conversion circuit 29.
This is a memory for inputting and storing the results processed and processed by the arithmetic unit 25. The instruction decoder 24 is a block that decodes the output of the ROM 21 and sends control signals to each block. The calculation unit 25 performs calculations using the data in the RAM 23 or the data output from the reception circuit 5 based on instructions from the ROM 21 and the key input unit 28, and sends the results to the RO.
The data is written to the address of the RAM 23 designated by M21 and displayed on the display section 2. This bearing part 2 is the same as that shown in FIG. The oscillator 26 outputs a clock signal with a constant period, and the timing generator 27 divides the frequency of the clock signal to a predetermined frequency and outputs a timing signal for controlling each block in time series. The key manual unit 28 is a block that sends signals from the outside to instruct the system to perform each processing operation, and is a block that sends signals from the outside for instructing the system to perform each processing operation, and is a block that sends signals from the outside to instruct the system to perform each processing operation, and is a block that sends signals from the outside to the keys S1, S2, . S3 and a key group 3a.

The conversion circuit 29 converts the cryptographic code written in the RAM 23 and will be described later into H (high) and L (low) serial electrical signals and sends them to the transmission circuit 4. This transmitting circuit 4 has the same configuration as shown in FIG.

It is composed of an ED 4a and a transistor 4b, and the transistor 4b turns on and off according to the output signal of the conversion circuit 29, and the LED 4a turns on and off accordingly, thereby outputting an optical signal containing predetermined data.

The receiving circuit 5 includes a photodiode 5a shown in FIG.
9. It is composed of an amplifier 5b, a low-pass filter 50, etc., and receives a response signal, which will be described later, transmitted from the LED 17a of the jewelry box 1, converts it into an electric signal, and outputs it.

Next, FIG. 4 shows the circuit configuration of the jewelry box 10.

The receiving circuit 16 includes a photodiode 16 shown in FIG.
It is composed of an a1 amplification W16b, a low-pass filter 16c, etc., and upon receiving an optical signal from the LED 4, converts this optical signal into an electrical signal. The conversion circuit 31 is
The output signal of the receiving circuit 16 is converted into a parallel digital signal (cipher code). The coincidence detection circuit 32 compares the encryption code set by the digital switch 14 and the encryption code output from the conversion circuit 31, and outputs a coincidence signal when the contents match. When they do not match, a mismatch signal is output. The locking mechanism 33 is composed of a protrusion 13 in FIG. 2 and an engaging part in the main body 11, and when it receives the above coincidence signal, the engagement between them is released and the lock is released. There is.

Further, the coincidence signal or mismatch signal is transmitted to the delay circuit 34.
After being delayed by , the signal is sent to the conversion circuit 35 . The conversion circuit 35 converts the negative signal or the disagreement signal into a serial on/off signal and sends it to the transmitting circuit 17. The transmitting circuit 17 is composed of the LED 17a and the transistor 17b shown in FIG. 2, and converts the output signal of the converting circuit 35 into an optical signal as a response signal and outputs the optical signal. This response signal is received by the receiving circuit 5 of the wristwatch as described above.

Next, FIG. 5 shows the internal configuration of the RAM 23 shown in FIG. 3. In the figure, the RAM 23 includes a time register W,
Display register・Code change setting flag Q,
Item input mode flag R, code output mode flag S
, status display mode flag ■, timers T and U, etc.

The time register W is a register that stores time data such as hours, minutes, seconds, and 1/16 seconds, and the display register X is a register that temporarily stores data to be displayed on the display section 2 described above. The item storage register Y and the encryption code storage register Z are composed of a plurality of registers, and each register stores items corresponding to various electronic locks and encryption codes set for each item. For example, in FIG. 5, for the jewelry box 10 shown in FIG. 2, the item is rJEWELJ, and the corresponding encryption code is set as ro 425J.

In addition, in the case of a house door, a car door, and an office door, the items are rDOORJ, CARJ, and rOORJ, respectively.
FF I CEJ, and an encryption code is set for each item.

The pass data storage register H is a register that stores pass data, that is, data consisting of a secret number or symbol known only to a specific person.
It stores path data called ollJ.

The pass data setting flag L is the pass data storage register H.
This flag is set to "1" when path data is set in . The electronic key operation mode flag M is "1" in the case of display modes related to electronic key operations (electronic key operation modes) as described below, other than time display mode.
is the flag that is set. Pass data input mode flag N1 Mode selection flag o1 Pass data conversion mode flag P, item/code change setting flag Q, item input mode flag R1 Code output mode flag S1 Status display mode flag V is the display on the display section 2 described above. The modes are path data input mode, mode selection mode, path data change mode, item/code change setting mode, item input mode, code output mode, as shown in FIG. 17, respectively.
This flag is set to 1" when the status display mode is selected. Timers T and U are timers that measure time in seconds, and the measurement result of timer T is used to automatically switch the predetermined display mode. The measurement result of the timer U is used to determine the presence or absence of the response signal from the jewelry box 10.

The main operations of this embodiment having the circuit configuration as described above will be explained below.

First, in FIG. 6, bolt (HALT>state (a+
), every 1/16 seconds, if there is no key processing instruction from
Timekeeping related processes can be performed sequentially (a2). This timekeeping related process, which will be described in detail later, is executed by a timekeeping clock signal output every 1/16 seconds from the frequency divider circuit 27 shown in FIG. 3, and the time data obtained by this process is is stored in the time register W of the RAM 23 shown in FIG.

On the other hand, in the HALT state (al), when keys 81 to 86 shown in FIG. 1 are pressed, key processing is performed (
a3). 'This key processing is performed by the operation of the ROM 21, RAM 23, etc. based on a signal output from the key input unit 28 shown in FIG. 3 when a key is pressed.

Hereinafter, the process and change in display mode when the keys 81 to S6 are operated will be described.

FIG. 7 is a flowchart of the process when the key 81 is pressed, and FIG. 17 shows the display changes when each key is operated. However, if the key S1 is pressed, as shown in FIG. 7, it is first determined whether the electronic key operation mode flag M is 1 (b+). As shown in Fig. 17, the flag M is a mode in which the time is displayed when it is 0, and each display on the electronic key is made when it is 1.If M≠1, that is, the time display mode (Fig. middle mode m
+ ), set M to 1, reset the timer T (b2), and switch the display mode to the electronic key mode (mode m 2 in FIG. 17) (ba).

If M=1 in the above step b+, that is, in the case of electronic key operation mode (mode m o in FIG. 17), it is necessary to judge whether the item/code change setting flag Q is 1 (ba), Q= If it is 1, that is, if it is the item/code change setting mode (mode m1o in FIG. 17), set O to Q and set the mode selection flag to 0.
Set 1 to bs) and switch to the mode selection mode (mode m s in FIG. 17). Meanwhile, step b4
If Q≠1 in , it is necessary to judge whether O=1 or not.b
a) If O=1, that is, mode selection mode m6, set O to 0 and set Q to 1.
(b7) and enter item/code change setting mode ml
Switch to G. Also, if 0≠1 in step b6, set O to M (bs) and set the time display mode m.
Switch to 1.

FIG. 8 shows the processing when the key S2 is pressed.

When key S2 is pressed, it is first determined whether the electronic key operation mode flag M is 1 (CI), and if M≠1, no processing is performed, and if M=1, the pass data change mode flag P is 1. (c2). If P=1, that is, in the path data change mode (mode m 9 in FIG. 17), set P to O and set the mode selection flag O to 1 (C3), mode selection mode m6.
Switch to . On the other hand, in step C2, if P≠1, it is determined whether O=1 (C4), and if 0=1, 0 is set to O and the path data change mode flag P is set to 1 (C5). , path data change mode m9
Switch to .

FIG. 9 shows the processing when the key S3 is pressed.

When key S3 is pressed, it is first determined whether the electronic key operation mode flag M is 1 (dl), if M≠1, no processing is performed, and if M=1, the pass data input mode flag N is 1 (d2). If N=1, that is, in the pass data input mode (mode m 3 in FIG. 17), set N to 0 (d3) and switch to the electronic key mode m2 (d4).

If N≠1 in step d2, it is determined whether the path data setting flag L is 1, that is, whether the path data is set in the path data storage register H (d5). In the case of L-1, set N to 1 (d6
), switch to path data input mode m3. On the other hand, if L≠1 in step d5, it is determined whether the mode selection flag 0 is 1 (d7), and if O=1, 0 is set to O and N is set to 1 (d8). ),
Switch to pass data input mode m3.

Figure 10 shows the process when the key 84 is pressed. When key S4 is pressed, first it is determined whether it is M-1 or not.
), if M≠1, no processing is performed, and if M=1, it is determined whether the item input mode flag R is 1 (C2).

If R≠1, no processing is performed, and if R=1, that is, in the item input mode (mode m7 in Figure 17), R is set to 0 and the code output mode flag S is set to 1. C3), code output mode (17th
Switch to mode ms) in the figure.

FIG. 11 shows the processing when the key S5 is pressed. When key S5 is pressed, it is determined whether it is M-1 in the same way as above (f,), and if it is M-1, it is determined whether mode selection flag 0 is 1 or not. )
, if O=1, that is, in mode selection mode m6, set 0 to O and set item input mode flag R.
Set 1 to f3) and switch to item input mode m7.

On the other hand, if 0≠1 in step f2 above, R=
1, f4), and if R≠1, no processing is performed, and if R=1, set R to 0 and set 0 to 1 f5), and change to mode selection mode m6. Switch.

FIG. 12 shows the processing when the key S is also pressed. When the key 86 is pressed, it is similarly determined whether M=1 (g+), and if M=1, it is determined whether the item/code change setting flag Q is 1 (g2). If Q≠1, no processing is performed, and if Q=1, the next item and encryption code are read (g3).

Key processing is performed as described above, but in the time-related processing performed at every 1/16 second timing, as shown in FIG.
Display processing (h3) is performed sequentially.

The above timing process (hl) is specifically shown in FIG. First, it is checked whether there is a clock signal every 1/16 second (i+), and if there is a clock signal, the l/16 in the time register W of the RAM 23 shown in FIG.
1 is added to a second counter (not shown) (12). Then, it is necessary to judge whether this 1/16 second counter has counted 16, that is, whether 1 second has elapsed.i3)
When 1 second has elapsed, the 1/16 second counter is reset, and the second counter (
(not shown) is added by 1 (i4). Next, it is determined whether the second counter has counted 10, that is, whether 10 seconds have elapsed.If 10 seconds have elapsed, the second counter is reset, and the 10 second counter in the time register W (is) is determined. (i6
). Then, check whether the 10 second counter has counted 6, that is, whether 1 minute has passed (i7), and
If a minute has elapsed, the 10-second counter is reset, and the minute counter (not shown) in the time register W is incremented by 1 (iθ), and then other timekeeping processing is performed (19).

The mode detection process (h2) and display process (h3) shown in FIG. 13 are specifically shown in FIGS. 15 and 16.

In FIG. 15, it is first determined whether the electronic key operation mode flag M is 1 (j+), and if M≠1, the time is displayed (j2). This time display is performed by displaying the time data written in the time register W by the time counting process shown in FIG. An example of the display is shown in FIG. 18(a).

In the case of M-1 in the above step j1, it is determined whether the pass data input mode flag N is 1 or not.j3)
If N”1, check whether the path data setting flag L is 1 or not.
That is, it is determined whether the path data has been set (j4). If it is L-1, input processing of path data is performed (j5), and it is determined whether the set path data and the inputted path data match (j6). If they match, set the pass data input mode flag N to 0 and set the mode selection flag O to 1 (j7
), the mode is switched to mode selection mode m6, and a mode selection display is performed (j8). An example of this display is shown in FIG. 18(d).

On the other hand, if there is a mismatch in step j8, error processing is performed (js), and the error display mode is switched to m5 to display an error (jIo).

If L≠1 in step j4, set N to 0 (
jI+), and switches to the pass data setting mode m4 to display the pass data setting (j l 2).

If N≠1 in step j3, judge whether L=1 or not. If L≠1, it corresponds to the path data setting mode m4, so perform the path data setting process and set L to 1. (j+a). Then, this set path data is displayed (j l 2).

If L=1 in step j+s, it is determined whether the mode selection flag 0 is 1 (j+5), and if 0=1, a mode selection display is performed (j+a).

An example of this display is shown in FIG. 18(d).

If 0≠1 in step j+5, it is determined whether the path data change mode flag P is 1 (j l ?
). If P=1, perform path data change processing (j
+ e) , display the changed path data (j I
s).

If P≠1 in step jet, it is determined whether the item/code change setting flag Q is 1 in FIG. 16 (kl). In the case of Q-1, the item and encryption code are changed and set (k2), and the changed items and encryption code are displayed (k3).

If Q≠1 at step +, it is determined whether the item input mode flag R is 1 (k4), and if R=1, the item input process is performed (k5).

This process is performed by writing the input item data to the display register X. Next, the items written in the display register X are displayed (ke).

An example of the display is shown in FIG. 18(e). In the same figure,
An item rJEWELJ indicating a jewelry box has been input.

If R≠1 in step 4, it is determined whether the code output mode flag S is 1 (kl). S=1
In this case, the encryption code corresponding to the item input in step 5 is output to the conversion circuit 29 shown in FIG.
The process of driving the ED4a is performed (ke). Then, it is determined whether the output of the cipher code has been completed (k+o), and if it is still being output, it is displayed by blinking as shown in FIG. 18(f) (k+o). The encryption code is output as an optical signal from the LED 4a shown in FIG. 3, and is received by the photodiode 16a of the jewelry box 10. If the number on the digital switch 14 and the encryption code match, the lock is released. When the output of the cipher code is finished in step 9, set the code output mode flag S to 0 and set the status display mode flag V to 1 (k++) to receive the above-mentioned response signal from the jewelry box. Switch to reception mode (k+2)
- If S≠1 in step 7, it is determined whether the status display mode flag ■ is 1, that is, whether the above-mentioned reception mode is in effect (k+3). If V=1, timer U is started (k15), and then it is determined whether timer U is 5, that is, whether 5 seconds have elapsed (k+5). If U=5, the above reception mode is ended, ■ is set to 0, and the item input mode flag R is set to 1 (k+a).

If U≠5 at step +a, that is, before 5 seconds have elapsed since the start of timer U, it is determined whether the response signal is present (k+t).

If there is a response signal, check whether it is a matching signal, that is, the transmitted encryption code and the digital switch 14.
(Fig. 4) to judge whether the set encryption code matches (k+e), and if it is a match signal, a match display as shown in Fig. 18 (phantom) is performed (k+9>).

In the same figure, rOPENE indicates that the lock has been released.
DJ is displayed. On the other hand, if a mismatch signal is received, a mismatch display as shown in FIG. 18 Th) is performed (k2o).

If there is no response signal at step +7, determine whether timer U is greater than 2, that is, whether 2 seconds have elapsed. If U > 2°, determine whether a response signal is returned. Fig. 18 (
An input failure display as shown in 1) is performed (k22). On the other hand, if U<2, an outputting display (k+o) is displayed to wait for a response signal to be received.

If V≠1 at step +3, it means that the time display mode m1 has just been switched to the electronic key mode m2. In this case, timer processing is performed by the timer T shown in FIG. 5 (k23), and it is determined whether two seconds have elapsed (k2m). If the timer T has not reached 2 seconds yet, the electronic key mode display as shown in FIG. 18(b) is performed (k2!I). On the other hand, if 2 seconds have elapsed, the timer T is reset, the pass data input mode flag N is set to 1 (k26), and the pass data is input and displayed (k2t). An example of this display is shown in FIG. 18 (C1). In the figure, path data rOO11J has been input.

Next, changes in the display mode based on the operations of the keys 31 to S described above will be explained again with reference to FIG. 17.

First, in the time display mode m1, the time is displayed as shown in FIG. Switches to electronic key mode m2, and
An electronic key display as shown in Figure 8Tb) is performed.

2 seconds after switching to electric key mode m2,
Switches to pass data input mode m3.

If path data, for example rollJ, is input in this state, an input display as shown in FIG. 18(C) is performed.

Here, only when the input pass data matches the preset pass data, the mode is switched to the mode selection mode m6, and the electronic key Ft operation can be performed. If they do not match, the mode is switched to error display mode m5 and an error display is performed. After one second has passed, the mode switches again to the pass data input mode m3, but if there are three errors, the mode returns to the time display mode ml.

In this way, a person who does not know the set pass data cannot operate the electronic keys, that is, output the encryption code, change settings of items and encryption codes, change the pass data, etc. Note that if the pass data has not been set, the mode switches to the pass data setting mode m4, so if the key 83 is pressed after setting the pass data arbitrarily in this state, the mode changes to the pass data input mode m3.

When the path data match and the mode is switched to mode selection mode m6, a display as shown in FIG. 18(d) is displayed. If the user wishes to unlock the electronic lock, the user presses the key 85. Then, the mode switches to item input mode m7. In this state, if you input an item corresponding to the desired electronic lock, for example, rJEWEL for a jewelry box, the input display will change to the first
This is done as shown in Figure 8(e). If you wish to output the encryption code, you only need to match the LED 4a and photodiode 5a in FIG. 1 with the photodiode 16a and LED 17a in FIG. 2, and press the key S4. Then, while the encryption code is being output, the mode is switched to the code outputting mode m8, and a blinking display is performed as shown in FIG. 18(f). When the output of the encryption code is finished, the jewelry box 1
Waiting for a response signal to be sent from the LED 17a of 0, the mode is switched to the status display mode m11, and the above-described match display, mismatch display, or input display is performed in response to the response signal. When these status displays are completed, the mode is switched to the item input mode m7 again. In this way, the transmission result can be displayed each time an encryption code is sent, so even if the lock cannot be unlocked, it is possible to determine whether the cause is an error in the encryption code or if the encryption code is incorrect. You can easily find out if the code was sent incorrectly.

If you wish to change or set an item or code, press key SI in mode selection mode m6. Then, the mode is switched to item/code change setting mode rrzo, and in this state, items and encryption codes can be changed or set.

Each time the key S6 is pressed, the items and code are switched in sequence (.If the key 81 is pressed again, the mode selection mode m6 is returned to.

If you want to change the pass data, use the old card selection mode m6.
key 82 is pressed. Then, the mode switches to the path data change mode m9, so the path data can be changed in this state. If you want to return to the mode selection mode m6, just press the key S2 again.

Note that the present invention is applicable not only to the above-mentioned wristwatch, but also to pocket-type small calculators and other items that can be worn on the body. Further, in the above embodiment, a jewelry box is shown as the electronic lock device, but the present invention is not limited to this at all, and can also be applied to, for example, an electronic lock built into the door of a house, office, car, etc.

In addition, the RAM mentioned above is a non-volatile memory, especially an EEP
Preferably, it is a ROM. In this way, even if the battery of a wristwatch or the like runs out, the encryption code will not be lost.

Furthermore, as a medium for transmitting the encryption code, L
Instead of light from the ED, radio waves, sound waves, etc. may be used.

In addition, the item may use the full name, but may also include only the initial letter, or only 2 to 3 characters from the initial letter. Items may also be specified sequentially with a single switch.

Furthermore, the pass data is not limited to the numbers mentioned above, for example, the number of times a predetermined key is operated, the operation time, a combination of keys for various operations, or a voice recognition function that incorporates a specific voice or It may also be one that allows words to be recognized.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to receive a response signal notifying the transmission result of the encryption code, so even if the lock cannot be unlocked, it may be because the encryption code is inappropriate, or the encryption code is incorrect. It is possible to easily and accurately determine the cause of the problem, such as whether it was due to a transmission error, resulting in extremely high practicality and operability.

[Brief explanation of drawings]

FIG. 1 is an external perspective view showing one embodiment of the present invention, FIG. 2 is an external perspective view of a jewelry box whose locking mechanism is released according to the same embodiment, and FIG. 3 is an external perspective view of the embodiment shown in FIG. 1. 4 is a circuit diagram showing the circuit configuration of the jewelry box shown in FIG. 2, FIG. 5 is a diagram showing the internal structure of the RAM shown in FIG. 3, and FIGS. Fig. 16 is a flowchart showing the processing operation of the above embodiment, Fig. 17 is a diagram showing changes in display mode due to key operations in the above embodiment, and Fig. 18 (al~(1)) shows each display example in the above embodiment. 4... Transmission circuit, 5... Receiving circuit, 21-- ROM. 23... RAM. 29... Conversion circuit, Y... Item storage register, Z... No. 111 code storage register, H...Pass data storage register, L...Bus data setting flag, M...Electronic key operation mode flag, N...Pass data input mode flag, 0...Mode selection Flag, P...bus data change mode flag, Q...item
Code change setting flag, R...Item input mode flag, S...Code output mode flag, ■...Status display mode flag. Patent Applicant Casio Computer Co., Ltd. Figure 4 DanRAM J Figure 5 Figure 6 S+ S2 Figure 8 Figure 9 Figure 14 (a) (d) (b) (e) (c) (f) Figure 18 figure

Claims (1)

[Scope of Claims] Encrypted code storage means for storing an encrypted code for unlocking an electronic lock; Encrypted code transmitting means for transmitting the encrypted code stored in the encrypted code storage means to the electronic lock. and response signal receiving means for receiving a response signal from the electronic lock to notify the result of the transmission of the cryptographic code by the cryptographic code transmitting means.