CN2691000Y

CN2691000Y - Rolling digital input type anti-peeping cipher keyboard

Info

Publication number: CN2691000Y
Application number: CN 200320117862
Authority: CN
Inventors: 刘超英
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-10
Filing date: 2003-11-10
Publication date: 2005-04-06
Anticipated expiration: 2013-11-10

Abstract

The utility model relates to a rolling digital input type anti-peeping cipher keyboard, which is suitable for ATM, savings banks, stock exchanges and any other occasions where digital cipher input is needed for personal identity acknowledgement and comprises a number input unit and a digital display. Compared with the prior art, the rolling digital input type anti-peeping cipher keyboard adopts the techniques such as numbers random setting, numbers rolling input and small view angle display so as to effectively prevent the personal identity cipher from being peeked and stolen by other persons.

Description

A kind of rolling digital input type peep-preventing cipher keyboard

Technical field:

The utility model relates to a kind of rolling digital input type peep-preventing cipher keyboard, is applicable to that ATM (automatic teller machine), savings department of a bank, stock exchange and other need the input digit password to determine the occasion of personal identification.

Background technology:

In the modern life, financial transaction activity such as people often need to deposit and withdraw to places such as bank, stock exchanges, stock jobbery.Along with the development of infotech, various transactional cards, ID (identity number) card also more and more enter into daily life, in the activity of using these meanss of exchange, often need some bit digital of input or letter to confirm dealer's identity.Go up and savings bank and most of stock exchange all use the fixing password keypad of figure case in ATM (automatic teller machine) (ATM) at present, this keypad generally comprises 0-9 10 numeric keys altogether, several function keys such as deletion and affirmation.The major defect of this keyboard is that easy stolen molecule is inputed the action of password or surreptitiously removed trading password with instruments such as video cameras by observing the dealer, causes economic loss, causes sincere loss to financial institution to the dealer; This keyboard is also spied on unintentionally by by the side of people easily, causes unnecessary trouble and embarrassment to the dealer.

Summary of the invention:

The purpose of this utility model provides a kind of rolling digital input type peep-preventing cipher keyboard, and it can overcome the deficiencies in the prior art.

The utility model is achieved in that it mainly is made up of number input unit and nixie display, wherein, the number input unit has initiating key, selected button, acknowledgement key, corrigendum key, code selection runner and functional circuit, nixie display has charactron and transparent panel, and the number input unit connects nixie display by cable.

The utility model has compared with prior art adopted technology such as putting number, rolling input digit, small angle display at random, can prevent well that the personal identification password from being spied on, stealing by other people.

Description of drawings:

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the structural representation of the nixie display in the utility model

Fig. 3 is circuit theory diagrams of the present utility model

Embodiment:

As Fig. 1, shown in 3, the utility model mainly is made up of number input unit 1 and nixie display 2, wherein, number input unit 1 has initiating key 3, selected button 4, acknowledgement key 5, corrigendum key 6, code selection runner 7 and functional circuit 8, number input unit 1 connects nixie display 2 by cable 11, number input unit 1 connects computing machine by cable 12, initiating key 3, selected button 4, acknowledgement key 5, corrigendum key 6 and code selection runner 7 are located at the upper right corner of number input unit 1 panel respectively, the upper left corner, the lower left corner, the lower right corner and middle position, functional circuit 8 is made up of a single-chip microcomputer mini system 20 and BCD to seven section display decoder 15, this single-chip microcomputer mini system 20 has BCD up-down counter 13, the binary-coded decimal generator 14 at random, latch 16, error correction yardage storage 17, CTC timer conter 18 and serial output terminal mouth 19, wherein, initiating key 3 connects the input end of binary-coded decimal generator 14 at random, selected button 4 connects the input end of latch 16, acknowledgement key 5 connects the input end of serial output terminal mouth 19, corrigendum key 6 connects the input end of error correction yardage storage 17, code selection runner 7 connects the input end of BCD up-down counter 13, the output terminal of binary-coded decimal generator 14 connects BCD up-down counter 13 at random, the output terminal of BCD up-down counter 13 connects the input end of BCD to seven section display decoder 15 and the input end of latch 16, the output terminal of BCD to seven section display decoder 15 connects nixie display 2, the output terminal of error correction yardage storage 17 connects latch 16, the output terminal of the output terminal of latch 16 and CTC timer conter 18 connects serial output terminal mouth 19, serial output terminal mouth 19 stube cables 12.

In the present embodiment, as shown in Figure 2, nixie display 2 is by digital luminotron 2A, transparent panel 2B and shell 2C form, wherein, digital luminotron 2A is contained among the shell 2C, transparent panel 2B is contained in the top of digital luminotron 2A, the bottom surface of transparent panel 2B is the non-smooth flat of concave-convex surface, the design of this transparent panel 2B can make sends from digital luminotron 2A, the light parallel with the top surface plane normal direction of transparent panel 2B penetrates ejaculation without distortion, and make the light generation scattering at angle deviating transparent panel 2B center, thereby the visual perspective of restriction nixie display 2 promptly only allows operator individual to see the content of nixie display 2.

When using the utility model, only need one-handed performance, rotate code selection runner 7 and click the overall process that relevant button key can be finished the input password because operator's finger obviously do not relatively move, other people can't guess the numeral of its input.The concrete operations and the course of work are as follows:

(1) press initiating key 3, binary-coded decimal generator 14 can provide a numeral at random from 0-9 at random, and delivers to nixie display 2 and show by BCD up-down counter 13, BCD to seven section display decoder 15;

(2) forward or backwards rotation code selection runner 7, BCD up-down counter 13 just can produce corresponding digital along with the rotation of code selection runner 7, and deliver to nixie display 2 by BCD to seven section display decoder 15 and show, the operator can show at nixie display 2 and required stops operating when digital, click selected button 4 then, selected button 4 just will be selected signal and deliver to latch 16, and by serial output terminal mouth 19, cable 12 input computing machines;

(3) operation of repeating step (2) can continue selected required numeral, all selectes when whole required numerals to finish, and just can click acknowledgement key 5, thereby finish the input of set of number password;

(4) correction of input error: first kind of situation: when the set of number password all input finish, the computer discovery mistake, password is re-entered in prompting one time; Second kind of situation: after (or several) numeral of input, the operator initiatively finds mistake, press corrigendum key 6, more positive signal inputs to computing machine by error correction yardage storage 17, serial output terminal mouth 19, cable 12, after computing machine was done the backspace processing, the operator re-entered correct numerical ciphers.

Claims

1, a kind of rolling digital input type peep-preventing cipher keyboard, it is characterized in that forming by number input unit (1) and nixie display (2), wherein, number input unit (1) has initiating key (3), selected button (4), acknowledgement key (5), corrigendum key (6), code selection runner (7) and functional circuit (8), number input unit (1) connects nixie display (2), initiating key (3) by cable (11), selected button (4), acknowledgement key (5), corrigendum key (6) and code selection runner (7) are located at the upper right corner of number input unit (1) panel respectively, the upper left corner, the lower left corner, the lower right corner and middle position.

2, a kind of rolling digital input type peep-preventing cipher keyboard according to claim 1, it is characterized in that functional circuit (8) is made up of a single-chip microcomputer mini system (20) and BCD to seven section display decoder (15), this single-chip microcomputer mini system (20) has BCD up-down counter (13), binary-coded decimal generator (14) at random, latch (16), error correction yardage storage (17), CTC timer conter (18) and serial output terminal mouth (19), wherein, initiating key (3) connects the input end of binary-coded decimal generator (14) at random, selected button (4) connects the input end of latch (16), acknowledgement key (5) connects the input end of serial output terminal mouth (19), corrigendum key (6) connects the input end of error correction yardage storage (17), code selection runner (7) connects the input end of BCD up-down counter (13), the output terminal of binary-coded decimal generator (14) connects BCD up-down counter (13) at random, the output terminal of BCD up-down counter (13) connects the input end of BCD to seven section display decoder (15) and the input end of latch (16), the output terminal of BCD to seven section display decoder (15) connects nixie display (2), the output terminal of error correction yardage storage (17) connects latch (16), the output terminal of the output terminal of latch (16) and CTC timer conter (18) connects serial output terminal mouth (19), serial output terminal mouth (19) stube cable (12).

3, a kind of rolling digital input type peep-preventing cipher keyboard according to claim 1 and 2, it is characterized in that nixie display (2) is made up of digital luminotron (2A), transparent panel (2B) and shell (2C), wherein, digital luminotron (2A) is contained in the shell (2C), transparent panel (2B) is contained in the top of digital luminotron (2A), and the bottom surface of transparent panel (2B) is the non-smooth flat of concave-convex surface.