CN2153089Y

CN2153089Y - Keyboard of digital key reduced electronic abacus

Info

Publication number: CN2153089Y
Application number: CN 93233312
Authority: CN
Inventors: 欧阳璞
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-22
Filing date: 1993-02-22
Publication date: 1994-01-12
Anticipated expiration: 2003-02-22

Abstract

The keyboard of digital key reduced electronic abacus of the utility model belongs to a keyboard of the electronic digital calculating device, which is designed according to the combined advantages of the counting method of the Chinese archaic abacus beads and the modern electronic technology. The keyboard of digital key reduced electronic abacus is provided with a display screen, six number keys of a '0' key, a '1' key, a '2' key, a '3' key, a '4' key and a '5' key, six calculation function keys of a '+' key, a '-' key, a '*' key, a '/' key, a '=' key and a '. ' key and a power switch key of 'on/off' key. Compared with the keyboard of the existing electronic calculator, the keyboard of digital key reduced electronic abacus saves four number keys of a '6' key, a '7' key, an '8' key and '9' key, and thus the input speed is speeded.

Description

Keyboard of digital key reduced electronic abacus

The utility model belongs to a kind of keyboard of electronic digit calculation element.

Abacus is the ancient operational tool of a kind of China, is penetrated into the various aspects of our daily life widely, brings great convenience to people; The development of modern electronic technology provides a kind of electronic calculator of cheapness again to us.How the electronic calculator of cheapness and ancient abacus are combined,, just become the major issue of pendulum in face of ours to adapt to people's custom.

The purpose of this utility model just is ancient abacus and hyundai electronics computing technique are organically combined, and the keyboard of the identical digital key pearl electrical abacus of method of counting a kind of and the bead counting method is provided to people.

The purpose of this utility model is achieved in that a kind of keyboard of digital key pearl electrical abacus, it has display screen, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 0 " six numerical keys, "+", "-", " ÷ ", " * ", "=", ". " six calculation function keys and power switch key " ON/OFF ".

Above-mentioned keyboard and improved counter internal circuit are combined, make it difference input digit " 1 ", " 2 ", " 3 ", " 4 ", " 5 " separately by " 1 ", " 2 ", " 3 ", " 4 ", " 5 " key the time, and when adding in " 5 " by some in " 1 ", " 2 ", " 3 ", " 4 " key, correspondingly distinguish input digit " 6 ", " 7 ", " 8 " " 9 ", thereby the purpose of this utility model is achieved.

Because the utility model has reduced " 6 ", " 7 ", four numerical keys in " 8 " " 9 " in the keyboard of existing electronic calculator, thereby simplified keyboard, the position of each key also can be according to people's left hand and right hand operating habit on the keyboard simultaneously, be provided with flexibly, method of operating is also more flexible, operating speed also with fast one in existing electronic calculator.

Following accompanying drawing provides an embodiment of the present utility model:

Fig. 1 is the keyboard synoptic diagram of digital key pearl electrical abacus

Fig. 2 is one of digital input circuit design that cooperates with keyboard

The embodiment that provides below in conjunction with accompanying drawing further describes the utility model:

As Fig. 1, the keyboard of digital key pearl electrical abacus has display screen, " 0 ", " 1 ", " 2 ", " 3 ", " 4 ", " 5 " six numerical keys, "+", "-", " * ", " ÷ ", "=" and six calculation functions of ". " (radix point), also be provided with the extraction of square root key "

" get percent key " % " and memory function key " M+ ", " M-" reaches " MR ".

Digital input circuit such as Fig. 2 of cooperating with this keyboard, circle interior " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 6 ", " 7 ", " 8 ", " 9 " are represented original loop of original nine figure keys of counter respectively among the figure, and A, B, C, D, five buttons of E are respectively five numerical keys " 5 ", " 1 ", " 2 ", " 3 ", " 4 " of newly establishing on the keyboard.Under state of nature, these five keys all with figure in last end line take logical; Press afterwards and all trample the road and descend end line to take logical with the middle part line.Thereby during some in pressing these five keys separately, it just is communicated with its pairing original digital input circuit, as pressing " B " key separately, the original input circuit of " 1 " word is connected, and numeral " 1 " is transfused to, and when some among A and B, C, D, the E pressed simultaneously, when for example pressing AC two keys simultaneously, the input end of then original digital input circuit " 7 " is taken logical, and " 2 " reach the input end of " 5 " and all be disconnected, thereby numeral " 7 " is transfused to.After the input digit,, thereby just can perform mathematical calculations as existing counter because original All other routes are not all made change in the counter.Its original repertoire all can be realized in the same old way and its work efficiency is greatly improved.

Claims

1, a kind of keyboard of digital key pearl electrical abacus has display screen, " 1 ", " 2 ", " 3 ", " 4 ", " 5 ", " 0 " six numerical keys; "+", "-", " * ", " ÷ ", "=" and ". " six calculation function keys; Power switch key " ON/OFF ".

2, keyboard as claimed in claim 1, its feature also be it also have the extraction of square root key "

", get percent key " % " and memory function key " M+ ", " M-" reaches " MR ", above-mentioned three rows (or three row) telegraph key must be to be critical by arrangement.