Portable multifunctional calculator
A calculator and multi-functional technology, applied in computing, computers, digital computer parts, etc., can solve the problems of limiting the time of one use of the calculator, inconvenient to replace the battery, and prolonging the use time of the calculator battery, so as to achieve the convenience of carrying , the effect of convenient life
Pending Publication Date: 2016-09-28
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0005] Existing calculators often only have one battery installation port, which greatly limits the time the calculator can be used at one time, and it is not convenient to replace the battery in a short time. This invention patent provides two battery installation ports, which greatly prolongs the battery life of the calculator and is more beneficial to users
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[0019] As shown in the figure, before using the calculator, first press the switch button ( 4 ) to turn on the calculator, and then the touch screen ( 9 ) will display the selection method, whether to choose Jiugong format touch screen or handwriting It is the touch screen method; if you choose the Jiugong format touch screen method, the number keys will appear inside the touch screen, and the addition, subtraction, multiplication and division symbols are on the right side of the touch screen; if you choose the handwriting touch screen method, not only the numbers must be handwritten, but also the addition and subtraction symbols The signs of subtraction, multiplication and division also need to be handwritten. After all input is required, click Finish on the touch screen, and the final result can be seen on the calculator display screen ( 7 ).
[0020] If you want to use the recording and playback function of the patent of the present invention, you must first press the switch...
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The invention discloses a multifunctional calculator applied to the mathematical calculation field. The multifunctional calculator comprises a calculating system, a lighting system, a recording system, a perpetual calendar displayer and a start and shutdown control key, wherein the calculating system is composed of a calculator display screen and a touch screen; the lighting system is composed of three lamplets and three lamplet keys and allows us to provide lighting equipment under the condition of weak light; the recording system is composed of a sound recording opening, a sound playing opening, a sound recording key corresponding to the sound recording opening and a sound playing key corresponding to the sound playing opening; the perpetual calendar displayer can definitely provide the current time and data; the start and shutdown control key controls a whole power switch and can prevent loss of electric quantity of a battery. In addition, a pen placing opening is formed in the calculator, the position for placing a pen is provided, and a user can record problems conveniently.
Description
technical field [0001] The invention patent is applied to the multifunctional calculator in the field of mathematical calculation, especially in the application field of primary and middle school students, or in the application field of the multifunctional calculator. Background technique [0002] Many existing calculators have relatively single kinetic energy and only have calculation functions. When walking in a dark environment with a calculator, it is often difficult to see the road ahead. This makes it inconvenient to use the calculator in an environment with unclear light, which affects its performance. Although the screens of different calculators are bright, they cannot provide lighting. [0003] At the same time, existing calculators generally do not have a pen opening, and corresponding records often occur when using a calculator. If there is no pen at this time, it will feel very inconvenient. And this calculator provides a pen opening, so that it can be recorded...
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Login to View More IPC IPC(8): G06F15/02
CPCG06F15/0208G06F15/0216G06F15/0266
Inventor 徐可胡玉柱孔令魁
Owner HARBIN UNIV OF SCI & TECH