CN2433668Y

CN2433668Y - Abacus type coding digital keyboard

Info

Publication number: CN2433668Y
Application number: CN 00217571
Authority: CN
Inventors: 陆建钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-06-06
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to an abacus type coding digital keyboard, which comprises a keyboard, a plurality of digital input keys and function symbol keys arranged on the keyboard, a display screen, etc. The utility model is characterized in that every five keys are longitudinally arrayed into one group of coded numerical keys, a plurality of coded numerical key groups are transversally arrayed in parallel into an abacus form, the keys are divided into an upper case and a lower case, and the sums of the upper case keys and the lower case keys are respectively a sum coding number which is larger than a single key number. The utility model has the advantages of both an electronic calculator and an abacus, omits the movement of carrying and the stressful thinking of an abacus, and has the characteristics of fast input speed, easy learning, multiple functions and wide ranges of application. The utility model is particularly suitable for financial accounting and statistical personnel.

Description

Abacus type coded digital keyboard

The utility model relates to a kind of counter, specifically belongs to a kind of abacus type coded digital keyboard.

Existing most popular computational tool has electronic calculator and abacus, although should having of counter is very general, the traditional abacus of China is not abandoned because of the simple and efficient use-pattern of its uniqueness yet.But use abacus must carry on the back pithy formula, be difficult on top of; Because existing calculator keyboard generally all has only ten digital keys, so input speed is slower, and plus-minus need constantly be pressed add-substract key continuously, also influences computing velocity.

The purpose of this utility model is to provide a kind of electronic calculator of tool abacus form--abacus type coded digital keyboard, the advantage of this computational tool comprehensive modern electronic calculator of energy and traditional calculations instrument abacus, easy to use, input digit and carry out computing quickly.

The purpose of this utility model is achieved through the following technical solutions: a kind of abacus type coded digital keyboard, comprise a keyboard body, be located at number of digital input button, function symbol key and display screen above the keyboard body, and be located at circuit control panel in the keyboard, be characterized in: described per five-six press keys vertically is arranged as one grade of coded number keyboard group, and some grades of coded number keyboard group series arrangement laterally arranged side by side become an abacus form; Described button is divided into upper and lower shelves, and the button that performs is a numerical code 5, and the lower gear button is numerical code 1-4, and perform button and each lower gear button sum are respectively one and compile in collaboration with number, and this compiles in collaboration with several numerical codes greater than button singly-bound numerical code, is 6-9 in regular turn.

Owing to adopt technique scheme, make the utility model become a kind of electronic calculator-abacus type coded digital keyboard of tool abacus form, it has the advantage of electronic calculator and abacus concurrently, can continue to use the form of calculation of abacus, save the shelves action of advancing of abacus again and thought deeply high input speed with nervous, and it is easy to learn, function is many, uses extensively, is particularly suitable for financial accounting, statistician's use.

Adding (subtracting) method continuously can be by any function key, only otherwise stopping transportation go into data and get final product.Radix point preestablishes on panel, so can press; Zero also need not import; There are not the shelves that advance of abacus to move and nervous thinking again, thus high input speed, using extensively, especially suitable financial accounting, statistician use.

The utility model is described in further detail below in conjunction with embodiment that accompanying drawing and accompanying drawing provide:

Fig. 1 is the surface structure synoptic diagram of the utility model one embodiment;

Fig. 2 is the structural representation of each grade among Fig. 1;

Fig. 3 is the electrical schematic diagram of Fig. 1.

Referring to Fig. 1-3, Figure 1 shows that a kind of 11 grades abacus type coded digital keyboard, comprise keyboard body (1), be located at some coded digital buttons (2), function key (3), display screen (4), baffle (5) and movable radix point (6) above the keyboard body, and be located at the circuit control panel (not shown) in the keyboard 1.

Coded digital button (2) on the keyboard 1, with five keys is one grade, promptly the vertical row of five coded digital buttons (2) is row, forms one grade of coded number keyboard group (20), and many grades of coded number keyboard group sequential parallel are arranged in an abacus form (present embodiment is 11 grades).Every grade of coded number keyboard group again by space shelves (5) for baffle is divided into upper and lower shelves, on behalf of 5, four lower gear buttons of numerical code (22), the coded digital button (21) that performs represent

numerical code

1,2,3,4 (as shown in Figure 2) from top to bottom successively; In same shelves, the button (21) that performs is respectively one with each lower gear button (22) sum and compiles in collaboration with number (23), this each numeral of compiling in collaboration with number (23) is greater than button (2) singly-bound numeral, that is: represent the shift of numerical code 5 and the lower gear key combination volume of representing numerical code 1 to be numerical code 6, second key combination of shift and lower gear compiled and is numerical code 7, the 3rd key combination of shift and lower gear compiled and is numerical code 8, the 4th key combination of shift and lower gear, compile and be numerical code 9, factor character code 0 can be omitted input, so do not compile numerical code 0.The shelves numbers (20) of whole keyboard can be made multiple pattern as required, and high one by shelves from right to left.Radix point (6) on the middle baffle can be set by the upward mobile also combined function key (3) of arbitrary to the left and right shelves.

Fig. 3 is an electrical schematic diagram of the present utility model, is furnished with microcontroller IC on circuit control panel ₁, latch IC ₂～IC ₁₂, microcontroller IC such as keyboard array and display screen ₁Model is 80C51, latch IC ₂～IC ₁₂Model is 74LS373, and display is the LED seven-segment display.Microcontroller IC ₁11 ports of P1.0～P1.7, P3.0～P3.2 and 11 latch IC ₂～IC ₁₂G end connect, form keyboard array with P2.0～P2.5 end lead-in wire again; Microcontroller IC ₁P0.0～P0.7 connect 11 latch IC as delivery outlet ₂～IC ₁₂Input port 1D～8D end, 11 latch IC ₂～IC ₁₂Delivery outlet 1Q～8Q connect the corresponding seven sections LED of display; R1, R2, C1, RESET form the reset circuit of microcontroller.

When using abacus type coded digital keyboard, with singlehanded thumb and forefinger (or middle finger) operation.Input is less than or equal to 5 numerical code with singly referring to button, and input refers to simultaneously by corresponding two key letters with two greater than 5 numerical code.Because the high low level of each grade is independent, the input set of number can be from a high position to the low level, also can be from any position.During operation and the abacus difference be that each pearl of abacus lower gear all represents 1, dial 3 as abacus after, if will add 1 again, just must dial lower gear the 4th pearl with shelves; And abacus type coded digital keyboard if will add 1 again, need only get final product by lower gear the 1st key with shelves by after 3.When microcontroller detects certain key or certain two key closure, can differentiate and processing the input data by the program that presets, the PO mouth is delivered to result at the 1D～8D end of 11 latchs, the bit selecting of P1 mouth and P3 mouth output simultaneously sign indicating number is to latch G end, and selected latch is delivered to light-emitting diode display to number from 1Q～8Q end and shown.

As long as in former counter production line, change a lower keyboard and be integrated in ROM address control assembly in the calculator chip LSI and the object program in the ROM matrix, just can large quantities ofly produce the utility model abacus type coded digital keyboard at low cost.

Compared with prior art there is following advantage in the utility model abacus type coding digital keyboard:

1. compare with electronic calculator, because the abacus type coding digital keyboard high and low shift is separately independent, so add Method is very fast on abacus type coding digital keyboard, need by any function key, not need only continuous input digit, just The result that can constantly show addition. Subtraction is as long as press "-" key and convert the subtraction state to, company also subtract can be no longer by "-" key, tired defeated regressive, the result constantly shows at display screen. And meet digital code " 0 " and need not import, Decimal point ". " can not according to (decimal point can be set on keyboard as required "), not have in the figure place that keyboard is set yet "=" arranged, and (the addition subtraction need not be pressed, and other computing directly by the function key that changes the computing of lower step over to or by add-substract key is Show the result), so input speed is faster.

2. compare with abacus, must not carry on the back pithy formula and computing thinking, do not advance the shelves action during carry, thereby computing Faster, and function is more, and range of application is more extensive, and study and use are also easier than abacus.

Claims

1. abacus type coded digital keyboard, comprise a keyboard body (1), be located at number of digital input button (2), function symbol key (3) and display screen (4) above the keyboard body, and be located at circuit control panel in the keyboard, it is characterized in that: described per five buttons (2) vertically are arranged as one grade of coded number keyboard group (20), and some grades of coded number keyboard groups (20) series arrangement laterally arranged side by side becomes an abacus form; Described button (2) is divided into upper and lower shelves, the button (21) that performs is a numerical code 5, lower gear button (22) is numerical code 1-4 in regular turn, the button (21) 5 that performs is respectively one with each lower gear button (22) 1-4 sum and compiles in collaboration with number (23), its numerical code of respectively compiling in collaboration with number (23) is 6-9 greater than button (2) singly-bound numerical code in regular turn.

2. abacus type electronic code numeric keypad according to claim 1, its feature also is: described each grade coded number keyboard group (20) button (2) is five, its numerical code is respectively 1-5, and vertically put in order into: 5 in the top, its below is 1-4 in regular turn, separates with space shelves (5) between 5 and 1.

3. abacus type coded digital keyboard according to claim 1, its feature also is: described coded number keyboard group (20) is the 4-15 shelves.