CN2689337Y - Character inputting secretting device - Google Patents

Abstract

The utility model discloses a character inputting secreting device, comprising a key unit, a control unit and a performance unit. The key unit is provided with character keys of input characters and a cancel key or a confirming key. The utility model is characterized in that the key unit or the control unit is additionally provided with a secret switch, and the secret switch is that the character keys are pressed to input characters when the secret switch is not acted while the character keys are pressed not to input characters when the secret switch is acted. The secret switch is installed on an operating surface in which non-character keys are positioned, or is installed in a concealed body which fingers can be inserted in, or is installed on a separated body which is operated in hands, and the secret switch is connected with the performance unit by the wire or wireless mode. The utility model has the advantages of simple structure, lower cost price, convenient operation, strong confidentiality and broad application. The existing character input devices, such as keypads for bank debits, are hardly made changes while only the secret switches need to be additionally arranged at the rears of the keypads. The utility model can widely be used as character inputting secreting devices on computers, telephone sets, machines of buying and selling of stocks, cash machines, burglar-proof doors and other anti-theft devices.

Description

A kind of character input privacy device

Technical field

The utility model relates to the electric numerical data processing element in secret or the secure communication device, especially relates to a kind of character input privacy device.

Background technology

Be the safety of protection property and information, people have generally adopted encryption measures.As using very wide bank debits and PC etc., all be to take common mode to import secret character.This mode is difficult to take into account the requirement of strong security, three aspects easy to operate, simple in structure.When the user imports secret character at button, the risk by other people peep, store is arranged.Chinese patent CN1358921A disclosed " electronics character locking device and method thereof " with input mess code operator scheme, easy to operate, but structure is complicated, and security performance needs further improvement.

Summary of the invention

Be to solve the problems referred to above that prior art exists, the purpose of this utility model is to propose a kind of not peeped by other people can effectively prevent to import secret character information the time and the character input privacy device usurped.

The purpose of this utility model can be achieved by the following technical programs:

This character input privacy device, comprise push-button unit, control module, performance element composition, push-button unit has character keys, clear key or the acknowledgement key of input character, it is characterized in that: have additional secret switch at described push-button unit or control module, when this secret switch does not move, can input character by character keys, and should be secret during switch motion, pressing character keys can input character.

The purpose of this utility model can also be achieved by the following technical programs:

Described secret switch is installed in non-character keys place operating surface, or is installed in the hidden body that can insert finger, or is installed in to be held in the hand in the split of operating and with performance element and is connected by wired or wireless mode.

Described character input privacy device also comprises button input display unit and button input sound accompaniment unit.

Have additional the apparent switch that disappears at push-button unit or control module, when this apparent switch that disappears does not move, the work of described button input display unit, and this disappears when showing switch motion, described button input display unit is not worked.

Have additional silence switch at push-button unit or control module, when this silence switch does not move, described button input sound accompaniment cell operation, and during this silence switch action, do not work in described button input sound accompaniment unit.

The beneficial effect of the utility model contrast prior art is simple in structure, and cost is lower, and is easy to operate, and strong security is convenient to promote, and applied range.Especially to having character input device now, only need to install secret switch additional and get final product in the keypad back as changing hardly in the bank debits keypad.Under security context, need not switch any switch, as long as according to common character input operation, even old intelligence weak person also can manipulate.Adopt the utility model to import secret character process and do not avoid and peep even record a video, do not peeped and usurp in the time of can effectively preventing to import secret character information by other people.The utility model can be widely used in burglary-resisting installations such as computer, telephone set, stock exchange machine, cash machine, antitheft door and import privacy device as character.

Description of drawings

Accompanying drawing is the circuit diagram of a kind of embodiment of the utility model.

A kind of antitheft door of embodiment is imported privacy device with the character of electronics character lock

This character input privacy device is made up of keyboard unit 1, character input display unit 4, button input sound accompaniment unit 5, control module 2, performance element 3.It is again clear key that character keys 0～9, character keys 0 are arranged on the keyboard unit 1.The secret switch S 10 of control character key input is in normally off, and when secret switch S 10 disconnected, character keys 0～9 input was invalid.

Also be provided with and close the apparent switch S 11 that disappears that the character input shows, disappear when showing switch S 11 disconnections, press character keys, the light-emitting diodes light in the display unit 4 is not luminous.Be provided with the silence switch S12 that closes button input sound accompaniment, when silence switch S12 disconnects, press character keys, the loudspeaker in the sound accompaniment unit 5 is mute.

Character keys 0～9 pairing microswitch is respectively S0～S9.Secret switch S 10, the apparent switch S 11 that disappears and silence switch S12 adopt microswitch, all are installed in the side of keyboard.

Electronic lock special IC IC1 in the accompanying drawing, the four tones of standard Chinese pronunciation ring Analogous Integrated Electronic Circuits IC2 and adopt CH220 respectively, KD-9561, unidirectional controllable silicon S CR adopts MCR100-6, NPN type triode V1, V3 adopts 9013, positive-negative-positive triode V2 adopts 9012, NPN type triode V4 adopts 8050, diode D1～D10 adopts 1N4004, LED is BT-208,9V DC relay K is a JRX series, and loudspeaker Y is 2W, 8 Ω, resistance R 1 is 510K Ω, resistance R 2 is 4.7K Ω, resistance R 3 is 33K Ω, resistance R 4, R6 is 720 Ω, and resistance R 5 is 22K Ω, resistance is that R7～R10 is 100 Ω, resistance R 11 is 240K Ω, and capacitor C 1 is 470 μ F/10V, and capacitor C 2 is 47 μ F/10V.

Electronic lock special IC IC1 can freedom arbitrarily select its six time-delay characters, 1., 2., 3. and 6. pin is program keying input end, high level is effective, pin 4. ground connection is a power cathode, 5. pin is signal output part, and correct input is unblanked to become high level by low level behind the character, and pin 7. pin is the zero clearing input end, high level is effective, and 8. pin connects positive source.Triode V1, V2 form the timing power supply switch of monostable circuit.When static, because microswitch S5 is in off-state, triode V1, V2 end.8. the pin of electronic lock special IC IC1 does not work because of non-transformer voltage, the not power consumption of entire circuit static state, and when having only pin 7., 1., 2., 3., 6. to obtain instantaneous triggering high level in turn, 5. pin could export high level.Like this, when pressing microswitch S5, capacitor C 1 charges to supply voltage at once, triode V1, V2 is conducting in succession, capacitor C 1 is just by the emitter junction discharge of resistance R 1 with triode V1 subsequently, though microswitch S5 disconnects again, the discharge current of capacitor C 1 still makes triode V1, V2 keeps conducting, and promptly 8. pin has working power voltage, press microswitch S0 → S8 → S6 → S9 → S2 around here successively, the normal successively character 508692 of unblanking of importing, 5. pin just exports high level after finishing, and makes triode V3 saturation conduction, DC relay K gets electric adhesive, its normally opened contact is connected the electromagnetic lock power supply, the electromagnetic lock action, and antitheft door is controlled to be opened.This moment, the electric charge on the capacitor C 1 was given out light through the stipulated time, and triode V1, V2 end again, the pin voltage of 8. losing the job, and its pin 5. pin becomes low level, and triode V3 ends, and DC relay K discharges, and circuit recovers stable state again.If this moment the robber is arranged or illegally desire the catechumen and piece together character and exceed schedule time, DC relay K can not get electric adhesive yet, in case when mistake is pressed microswitch S1, S3, S4, S7, the unidirectional controllable silicon S CR conducting that promptly is triggered, loudspeaker Y sends chimes of doom.

Under the warning environment, when character 508692 is unblanked in normal input, can be 508692 forward and backward at character, the centre inserts dimmed character respectively, for example set and press character keys 3,5,0,8,6,4,9,2,7 successively, wherein the 3,4, the 7th, dimmed character, the 5,0,8,6,9, the 2nd, effective actual input character.Input method is to pin to disappear to show switch S 11 and silence switch S12, make its disconnection, closing character during in order to input character shows and the button sound accompaniment, when importing dimmed character 3,4,7 respectively, pin secret switch S and promptly disconnect secret switch S, button input is invalid, when importing effective actual input character 5,0,8,6,9,2 respectively, unclamping secret switch S is closed secret switch S, input character 5,0,8,6,9,2.Although the button input character is 350864927, effective actual input character is 508692.

Described dimmed character both can be inserted in before and after any character, also can be inserted in the middle of any character, and the number of insertion is not limit, and other people peep less than effective actual input character.

If secret switch, disappear apparent switch and the control of silence switch employing teleswitch can reach better secret effect.

This embodiment also is applicable to the decoding of telephone set coding lock, the business telephone number of maintaining secrecy, the name in an account book character of telephone bank, the secret input of the character in the security device.

Above-mentioned is a kind of concrete preferred implementation of the present utility model.For those skilled in the art, without departing from the inventive concept of the premise, can also make some changes and improvements, all should be considered as belonging to claim protection domain of the present utility model.

Claims (5)

1, a kind of character input privacy device, comprise push-button unit, control module, performance element composition, push-button unit has character keys, clear key or the acknowledgement key of input character, it is characterized in that having additional secret switch at described push-button unit or control module, when this secret switch does not move, can input character by character keys, and should be secret during switch motion, pressing character keys can input character.

2, character input privacy device according to claim 1, it is characterized in that being installed in non-character keys place operating surface at described secret switch, or be installed in the hidden body that can insert finger, or be installed in to be held in the hand in the split of operating and and be connected by wired or wireless mode with performance element.

3, character input privacy device according to claim 1 is characterized in that also comprising button input display unit or button input sound accompaniment unit.

4, according to claim 1 or 3 described character input privacy devices, it is characterized in that having additional the apparent switch that disappears at push-button unit or control module, when this apparent switch that disappears does not move, the work of described button input display unit, and this disappears when showing switch motion, and described button input display unit is not worked.

5, according to claim 1 or 3 described character input privacy devices, it is characterized in that having additional silence switch at push-button unit or control module, when this silence switch does not move, described button input sound accompaniment cell operation, and during the action of this silence switch, do not work in described button input sound accompaniment unit.