JPS5930159A - Secret memory device - Google Patents

Abstract

PURPOSE:To protect the content of a memory from being used by another, by accessing and displaying the memory contents only by a specific identification code. CONSTITUTION:Individual's secret contents such as a telephone number, account number of a bank, and identification card number are stored in frames 137-139 of a secret memory 127, respectively. A group of character patterns at an RAM character part 154 while written is registered in an identification character pattern memory 125 and not accessed in a general use state to keep the secrecy of the registered number. Then, the input character group from an RAM character pattern part 164 is inputted to an input character pattern memory 126 and compared with the contents of the memory 125 by a coincidence discriminating circuit 171. When they coincide with each other, the contents of the secret memory 127 are displayed on a liquid-crystal display device 178 through a character pattern generating circuit 121.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a secret notebook memory device whose purpose is to recall information by inputting a personal identification code.

Traditionally, devices have been used as electronic memo devices, especially in small portable devices, in which the user inputs information such as phone numbers, account numbers, etc. to be memorized into a memory circuit in advance.
When in use, the contents of the memo were called up and displayed by manual keystrokes such as mode call. However, the disadvantage of the above-mentioned device is that the contents of the memo cannot be kept secret, and even a third person can easily learn the contents of the memo by operating the device.

An object of the present invention is, as a means to improve the above-mentioned drawbacks, to restrict the recall of the memo contents so that the memo contents can only be retrieved and displayed using a specific password, thereby preventing the contents from being used by others. The purpose is to provide a means for a secret memory device that protects the contents of memos.

Another object of the present invention is that the manual means of the memory device is constituted by a pattern recognition device using a key or a group of keys, memo writing and password-1-1 (((
By using the same input means for inputting data, the city can be provided with the convenience of a small, portable device.

Another object of the present invention is to have a display means for guiding the writing direction θ when inputting a code on the 81F of the secret memory device; The object of the present invention is to provide a means configured to be used in common with the device.

Another object of the present invention is to provide means for updating the PIN code of the secret memory device, and when a new PIN code is registered, the contents of the old memo are automatically erased;
17. The purpose is to provide a means of defense to keep the hermit from knowing the contents of the former user's memo.

1-Edict Seek 1/Node There are various ways to configure the memory device.
An example is the case where it is used for i"1. ing. Pattern recognition is performed on these sensor terminals by drawing and inputting a character shape with your hand, and the recognized numbers, letters, symbols, etc. are used to create memo contents and create a password code. During use, the input glyph code is created to be compared with the PIN code (and the process is displayed on a liquid crystal display, etc., while it is stored in its memory circuit). It is configured so that it can be used or called.

3, which will be described in detail with reference to the drawings. FIG. 1 is a diagram of an electronic memo device of type 1 wristwatch showing an example of the structure of the electronic memo device of the present invention. Sensor one terminal group 1 to 11
is provided on the soil surface crow 15 and the exterior member 16, and it recognizes the patterns of numbers, letters, symbols, etc. drawn with a fingertip through the sensor terminal of the sensor 11, and stores it in memory. I- indicates the manual means of input to the circuit.

The sensor terminal groups 1 to 9 are mainly used for the character input section (~), and the sensor terminals 10 and 11 are used to designate the writing position of the character shape. 17, and the result of one sensor terminal is displayed. 18 is a band.

Figure 2 +, l, 1 (1) showing the expanded structure of the sensor terminal group in Figure 1 , I] A hole is made in a part of the surface glass 15 and taken out to the outside by a metal y1.
' OK connection is made, the upper surface gasis 15 is pulled in to the end, the cap is connected to the metal terminal 21 , and the module 251 is introduced via the spring 22 . A pattern recognition circuit and a memory circuit, which will be described later, are housed inside the module 25.

One end of the seventh sensor 6, which is one of the end r- of the sensors surrounding the I-face glass 15 in FIG. "Introduced downward through the side, and then moved through the spring 26,
2511--continued. Around the top glass 15, other sensor terminals 1.2.4.6.7.8.9
has a similar configuration.

1. The sensor terminal group around the gauge λ15 is insulated from the exterior part 16 by a gasket 26, and when drawing a letter with a fingertip, the metal terminal 6A and the exterior part side 16 are electrically connected through the human body. Due to this, the input signal cannot be obtained.

In FIG. 1, the sensor terminal 11 on the exterior side 16 has a structure similar to the sensor terminal 11A in FIG. Drill a hole in the
The sensor terminal 11 and the exterior cover 16 are insulated by a packing 28, and connected to the module 25 by a spring 30 like the other sensor terminals 1 to 9. The sensor terminal 10 also has a similar structure. For example, there is a liquid crystal display device 35 on the upper surface of the module 25, and the connector 66 and the liquid crystal display retainer 7 connect the module 2
5, the input character form displayed on the liquid crystal display device 35 can be read through the top glass 15 (
・Ru.

FIG. 3 is an input circuit diagram using the first sensor terminal group used in the present invention, and shows the input means of the memory circuit. The sensor terminal groups 1 to 11 shown in FIG. 1 are displayed as input terminals 1B to 1113 in FIG.
- connected to the potential of A1, -, r -sy*Ai]r4
2 u, in contact with the exterior member 16 in FIG.

? IY゛(,'I'>-i By drawing 41 characters, input terminals 111-11 l(%J, Ill+'j next-
]' Then, the input terminals I11λ to 1113 are connected to Il[l', and the inverters 451 to 45-
11, and the latch circuits 46-1 to 46-1
Set 1.

・I11, These latch circuits work at the same time.
・All sensor power is 0 +1 game-1 so that only one piece is taken.
~47 into the one-shot molding circuit 48, and its output 4
9, each launch circuit 46-1 to 46-, -11 is reset. The outputs of the latch circuits 46-1 to 46-11 are input to the encoder 60, converted to a binary code 1, and output as shown in the figure.1. reactor. In FIG. 3, an output waveform diagram 62 of one end of the sensor -f to 6 is shown as an example, and a code of 1' 00114 is obtained.

FIG. 4 is a code input state diagram showing the state in which the output of the encoder of FIG. 3 is input to the memory circuit. In the figure, the h-shape drawn at one end of the center 71-9 is
2" passes through sensor terminals 2, 6, 6, 5, 8, and 9 in the order indicated by arrow 65, and the outputs of each sensor are determined by the output of encoder 60 explained in FIG. , binary codes are sent to the memory circuit 66 in the order of arrow 67.
It is stored as draw 8. All glyph shapes are the same and are stored in a temporary input glyph memory (not shown in the next figure) as a bit code string as shown in this figure.

FIG. 5 is a block diagram of a pattern Je recognition circuit for determining the bit code string shown in FIG. 4 as a character shape.

The pinotoko string shown in FIG. 4 is stored in shift registers 71 to 76, which are a type of memory circuit, as shown, and serve as a temporary input character memory 77.

On the other hand, a standard glyph memory 87 for determining what type of glyph is inputted is composed of similar shift registers 81 to 8B, and two shift registers 71 to 76 and a shift register. If we compare the contents of registers 81 to 8B in the order of arrows 88.89, we can determine whether or not there was a ``l'' or ``-'' character manually. This is a nft pulse for sequentially comparing the contents of the single-character manual character memory 77 and the dropped character memory 87. 95 is the glyph -'+I't, 'I'll constant circuit and known constant path Gut Gunyuki 71, Rinari, and the human input glyph bit code string and standard glyph of each temporary input glyph memory -77 Compare the pinotoko-1 column of +2J in the memory 87, and if the A1 tongue is the same, match output 96, that is, trigger the ``1-2'' of the character shape generation circuit described later from 1 to 1) A) Pulse is obtained 1,
'), if they do not match, the standard glyph memo IJ-8
Comparison with the bit code string of the next glyph in 7, for example rlJ, begins.

In this way, it is possible to determine whether the content of the temporary input character shape memory 77 is a character shape. The character shape matching outputs 96, 97, etc. become the manual pulses of the character shape generation circuit shown in the next figure, and designate the character shape to be stored in the memory circuit described later.

FIG. 6 is a block diagram of the main part of the secret memory device of the present invention, in which the glyph generation circuit 121 generates glyphs determined by the glyph matching output 96, 97 explained in FIG. , numbers O to 9, symbols, etc. are generated, and depending on which At in the memory is selected at that time, a code-shaped memo! J-125, input glyph memory 126,
Frames 165-16 in secret memory 127 etc.
9-like (memorized.Next) memo!J-,
Frames 125 to 127 and frames 165 to 169 will be explained.

Password-shaped memo! , l-125 frame), 135 is I
LI bow G (I st er) YOtJIl,
As shown by C (river) I.], it is composed of ROM character-shaped sections 151 to 153 whose display patterns have already been determined, and a RAM character-shaped section 154 in which a password shape can be freely written. It A
It looks like L. The selection of the writing frame position is specified by the cursor 156, and the left and right movement of the cursor 156 is determined by the sensor 111 in FIG. 15.
-tj j, +Twaharu. It A M-shaped part 15
4 character J (f /ff +; l', :'!' %,
:) \-J', -r and 4th 11, code-shaped memory 12
5υC all 7, and when the registration is completed, Freno, 165 (, 1, in normal use, it is called 1li-1i, and the registration number is kept secret).

, 2σ) The registered J glyph part is the manual glyph memo described below! It is used to determine the match with the contents of J-126. Human power glyph memory 1.156&L WI+ I i”
No. 1 Y OL, J 11. (,: OI) l>
1.6/211 <, the display pattern is already determined, and consists of H, OM character parts 161 to 166 and an Lt A IVI part 164 into which freely input character shapes can be input.

It A M-shaped portion 166 is shown here as four frames J+, into which four arbitrary character shapes can be inserted. 11 Select the frame position to insert using the password type memory 1
Similarly to Freno 165 of No. 25, the left and right movement of the cursor 166 is also performed in the same manner. +1. A M-shaped part 1640-shaped group is
Since there is a person in the input glyph memory 126, if the contents of the memorized glyph memory 125 are compared with the match judgment circuit 171, the contents of the manually written glyph memo 'J-126 are the previously memorized code memo 1. )-125, and the following will be explained.
It is determined whether it is okay to display 7"1. Ru.

The operation of the matching circuit 171 can be the same as the determination method described in FIG. 5, and instead of the bit code string of the sensor terminal number described in FIG. All you need is a line. Freno 135.1
The contents of 66 are indicated by the dotted arrow 175. when in the evening state.
176, as indicated by the thick arrow 187, the character shape generation circuit 1
21, the contents of each frame are displayed on the liquid crystal display device 178 so that the operation can be confirmed).

Secret recorder I/memory 127 frame 167°1
38.139, etc. are all the aforementioned It A in the case of Figure 6.
For example, frame 167 is a telephone number, frame 138 is a bank σ month-1 account number, and frame 16 is an M-shaped part.
9 has been kept secret by the individual, such as ID number etc.
, -'' 1 word of tongue (S1. The means of β is dark aj [Freno of glyph memory 125, 165 l A M-shaped part 154
11, 'l, etc. The content of the L frame is the LCD large and small device i! The write status is confirmed by '+''178 (1 death), ',).

Hello, the contents of the Cresotho memory are code-type memos as mentioned above! Only when the contents of J-125 and the human glyph memory 126 match and the - extraction output of the match judgment circuit 171 is obtained, the contents of the secret memory 127 are passed through the glyph generation circuit 121 as indicated by bold line arrows 185, 186, and 187. It is displayed on the liquid crystal display device 16''178.

Therefore, the content of the print/node memory 127 is 1'F.
Only those who know the contents of R11 glyph memory 25 can retrieve it, and after recalling it, they can freely modify its contents by the means described above.

FIG. 7 is a block diagram of another embodiment of the input means of the present invention, in which a key is manually operated to drive a cross-shaped generating circuit.

Ghee human power department 201-203+d each English letter A-7
, numbers, symbols, etc.) These are individual independent switches that generate hi (characters such as , numbers, symbols, etc.), and are used in conventional small portable devices such as electric translators. From the glyph generation circuit 211, the specified glyph is darkened
An eyebrow 1 is created to be stored in the 1 character shape memory 125, the input character shape memory 126, and the secret memo 'J-127.

With the glyph pattern recognition means using the sensor terminal 711'' described in FIGS. Pattern recognition was required to determine which glyph shape is ru), but if the method shown in Figure 7 is used, each key is different for each glyph, so there is no need for that. .

However, on the other hand, it requires the same number of keys as the number of characters, making it difficult to store the keys when used as a wristwatch.

FIG. 8 is a circuit diagram of a coincidence determination circuit used in the present invention. In this figure, an example will be explained in which character shape matching is determined. The bit code string 76.86 is the temporary input glyph memory 77 shown in FIG.
In the case of the figure, four exclusive OR gates 1, 221 to 224 and four inverters 261 to 234 simultaneously judge four bit strings, -1:, and the corresponding bit matches. Case-only theory f! 11 product game 1.269 (the means of these matching judgment circuits are well known), the character shape matching "I'lJ" shown in Fig. 5 is constructed.
It can be used for the constant circuit 95 and the match determination circuit 171 in FIG.

9(A) and (13) are memory configuration diagrams of the character shape generation circuit shown in FIGS. 6 and 7).

Dot tot mark l- 1) Display 1- with a box, and set the remainder line to 1
, the blank space is represented by a bit code string of O, then the first row 251 of the dot figure 250 is l-011. i I
J, second row 252 is r' I O O O I J
So, in the same way, the seventh row 257 is [], 1
．． ] 1 ] J, and if a signal such as kneading is stored in It OM as a glyph signal, that It. O
M is the shape generating circuit.

The glyph generation circuit shown in FIGS. 6 and 7 is shown in FIG.
3), the contents are It.3). Composed by O M ft. , one node stress of the first stage 261 of rLOM is 0
11, and its contents include the pinot code string rO]]], I]~I111
1J is 1,6 words.

Similarly to Itcho, 3199 glyph nohisotoko-1 sequences are stored from addresses 02 to 99, and bit code strings such as ``kone'' are recalled. When displaying, the address address of ItOM, that is, address 01 to address 1)9, is specified and the contents are transferred to the data bus 270.

Therefore, the password type memo 'J-12 shown in Figure 6
5. The contents of the manual glyph memory 126 and the secret memory 127 can be stored by storing address numbers 01 to 99 shown in the glyph generation circuit in FIG. There is no need to memorize the bit code string.

For example, for the 011 address glyph “2”, [0 1 1
1. 1 to 1 1 ], 1 ] - Instead of the bit code string of J's word 135, the address address is 0 - o O
O O J, 1 - 1' 0 0 Fl I J as 8 Pino) and o11 address lf. 5. l-te(・ru1)
．． f k), 1, yes. The structure of each memory that stores glyph addresses such as 1, 11, etc. will be explained with reference to FIG. 10.
do.

No. 10-1 is the secret IIL 1 glyph memory shown in Fig. 0, the human glyph memory, and the internal L of the secret memory.
%l, made 1 k・ru. Password type memo l)-125 I
t The content of the A M flat part 154 is "2" as shown in the figure,
Assuming that they are "1", [Y], and "A", and the address addresses of these glyphs are 71-' address addresses 01, 02, A9, and 36 of the glyph generating circuit explained in FIG. Then, as shown in this figure, < Il. The content of the A M flat part 154 is that the address address 281 of each character is the bit code string 2.
82.

Input glyph memo in the same way! If the human glyph form of J-1 2 6 is 1-2", "1", IFJ, rZJ, then
Each letter T - Atre address 285 is pinot h two 1 -
Stored as column 286 J-+. Ru. These bit code strings are determined to match the character shapes by the match determination circuit explained in FIG.
It A M section 154 and input glyph memory 1 2 6
Il. A Only when the M part 164 matches +(, A
The contents of the secret memory 127 composed of
Its purpose is to send it to The output of this cheater is caused by the coincidence output 185 triggering the lead terminal 400 of the secret memory 127. In reality, the code form memo l)-1 2 5 is the 6th
As explained in frame 165 of the figure,
(IY O [J It C 0 1) It also has the character shape "IU", and these character shapes are similar to the It. 01k11298 is stored as a string of bits: J- and T as described above.

Similarly, the input glyph memo IJ-1 2 6 is as shown in frame 166 of FIG.
It (l M 2 9 9 is stored as a bit code string inside the 9. When these glyphs are displayed, It O
M.It. A Al1 is sent to the glyph generation circuit at the same time and is displayed as the same frame. Each frame 501 to 560 of the secret memory 127 is composed of II A M indicated by a human line frame. Table>'', digit digit 1i/il is shown, for example, J-9 digit G top (i
1st frame A In the 1st row of the small table frame shown in 135-169, put 1), or in the 10th to I8th digit, put 1 in the F' column, and put the table J' in the row /, L-) .

In order to make the explanation easier to understand, the content of each digit is in one form,
1), but the actual memory contents are shown in Figure 10 (A).
), the character shape generation circuit 121
It is converted into a character shape inside II2, which will be explained in FIG. 165.166.167.168
．． 169).

FIG. 11 is a circuit diagram showing the related operation of the password type memory and the secret memory, which are part of the configuration of the present invention.

The credit memory 127 is connected to the data bus 270, and the contents of the memory can be written using the write signal 851υ', and the contents of the memory can be read out using the read signal 852. However, the contents of this secret memory can be erased by cutting off the power line 855.

Therefore, if this switching of the power supply line is performed by the write signal of the secret code shape memory, the entire contents of the secret memory will be erased when a new code shape is input.

In other words, even if this device is transferred to another person, it can be used without any problem, and the secrets of the previous user can be completely maintained. Therefore, in this figure, the write signal 861 of the secret code type memo IJ-125 is inverted by the inverter 862vC, and the secret memory 12
An example of means for erasing all memo contents in the secret memory 127 by turning off the gate 856 that cuts off the power supply line 7 to 01'F is shown below.

To erase the contents of the secret memory 127, select the secret memory address 872 to the address bus 871, and then set the cheater pass manual power 875 to zero U.
You can also use a rubbing method. By changing the contents of 'K Mll-Glyph Memo' J-125,
There are many different ways to control the content of J-127.

-I-g+-4, this book is based on the fact that conventional electronic memo devices only allow writing and reading, and no consideration was given to maintaining confidentiality. By using this together, it is possible to easily and highly securely protect the secret of the memo contents in the electronic memo.

In addition, as for the means of using the PIN code, it is possible to adopt the same input means and display means as the 7th Memo, as exemplified in the present invention. is easy.

In addition, even if the user forgets the PIN code or transfers it to someone else, the PIN code can be easily updated as described above, and the contents of the memo of the former user will be automatically deleted, ensuring confidentiality. , which has greater effects than conventional electronic memo devices.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a two-sided view of an arm-shaped electronic memo device, Fig. 2 is a partial sectional view of a sensor terminal group shown in Fig. 1, and Fig. Figure 1 is an input circuit diagram of the sensor terminal group, Figure 4 is a state diagram of the code that manually inputs the output of Figure 3 to the memory circuit, and Figure 5 is the input circuit diagram of the code that manually inputs the output of Figure 3 to the memory circuit. Block diagram of pattern recognition circuit, No. 6
The figure is a block diagram of the main part of the secret memory device, and FIG. 7 is a block diagram of the circuit of another embodiment of the input means of the present invention.
FIG. 8 is a circuit diagram of a match determination circuit which is a part of the present invention, FIGS. 9(A) and (13) are memory configuration diagrams of the character shape generation circuit shown in FIGS. 6 and 7, and FIG. 6 is a memory internal configuration diagram of the code-type memory, manual poem-type memory, and secret memory shown in FIG. 6, and FIG. 11 is a circuit diagram showing the related operation of the code-type memory and secret memory, which are part of the present invention. Deho)ru. 1 to 11...Sensor one terminal group, 125...
・・Password type memory, 126 ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・Secret memory, 12
1.211... Character shape generation circuit, 95... Character shape matching judgment circuit, 171... Matching judgment circuit, 135-139... Frame display example, 65.17
8.360...Liquid crystal display device. Figure 3

Claims (1)

[Claims] A glyph input means that generates a glyph input and converts it into a bit code string; a password memory circuit for storing one or more glyph inputs; A human-powered glyph memory circuit for temporary storage, a chronological memory circuit for pre-memorizing a plurality of the glyphs, and a memory circuit for displaying the contents when writing to each of the memory circuits and recalling them. σ2 display device, and a match determination circuit for determining whether the contents of the code-type memory circuit match the contents of the manual code-type memory circuit, and the code-type memory/lead circuit can be activated only by the match output of the match determination circuit. A secret memory device characterized by displaying the contents of on the display device.