CN201515440U - Digital camera having simple calculation function - Google Patents

Abstract

The utility model provides a digital camera having a simple calculation function, which comprises an input part, a calculation part and an output part, wherein the calculation part consists of a digital signal processor and a calculator chip, and the input part is sequentially connected with the digital signal processor, the calculator chip and the output part; and the digital camera having the simple calculation function integrates the function of the calculator and the function of the prior digital camera, is free from being additionally provided with keystrokes, is free from influencing the size of the prior digital camera, further enriches the functions of the digital camera, conforms to the function diversity requirement of the prior electronic product, and has strong practicability.

Description

A kind of digital camera with simple computation function

Technical field

The utility model relates to a kind of digital camera, especially a kind of digital camera with simple computation function.

Background technology

Present digital camera, also do not have this miscellaneous function of calculator, the user may need simply to calculate in the process of using digital camera at any time, if and digital camera ready to hand and bigger liquid crystal display screen thereof can't be offered help at this moment, not only can not bring conveniently for the user, also be a kind of waste to resource to some degree.That is to say, the general people that use digital camera, majority all is outside, and operable at one's side portable tool is less, and user's environment of living in is often extremely complicated, at any time have various needs, calculate some numerals (may relate to quantity, money, time etc.) such as temporary needs, therefore research and develop the function that a kind of digital camera with simple computation function can further enrich digital camera, very practical.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of digital camera with simple computation function.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A kind of digital camera with simple computation function, comprise importation, calculating section and output, described calculating section is made up of digital signal processor (DSP) and calculator chip, and the importation is connected with output with digital signal processor (DSP), calculator chip successively.

Preferably, above-mentioned digital camera with simple computation function, described importation is camera button or camera touch screen.

Preferably, above-mentioned digital camera with simple computation function, described output are camera LCD screen (LCD) or camera touch screen.

The beneficial effects of the utility model are:

Above-mentioned digital camera with simple computation function, calculator function and existing digital camera are combined together, the needs that the user may handle calculation task have at any time been satisfied, make full use of the bigger display screen of digital camera, it is effectively simple to operate, and need not additional key, do not influence the volume of existing digital camera, further enrich the function of digital camera, met the requirement of existing electronic product functional diversities, practical.

Description of drawings

Fig. 1 is a kind of internal structure block diagram with digital camera of simple computation function that the utility model provides.

Embodiment

For further specifying the utility model, existing conjunction with figs. is described in detail:

As shown in Figure 1, described digital camera with simple computation function, comprise importation, calculating section and output, described calculating section is made up of digital signal processor (DSP) and calculator chip (model is C9821), and the importation is connected with output with digital signal processor (DSP), calculator chip successively; Described importation is camera button or camera touch screen, and output is camera LCD screen (LCD) or camera touch screen.

Under calculator function, by importation input corresponding information (as, 1,2,3 ,+, *, or the like); The information of input is sent to the part of being responsible for calculating, described digital signal processor (DSP) links to each other with calculator chip, and send to the calculator chip enable signal by the enable line, CLK tranmitting data register signal, data wire data0 is to data7 transmitting control commands word, and calculator chip receives the control word (for example 00110101) of DSP, and the data that receive are carried out corresponding calculated, output result and refresh circuit (preparing for calculate next time) are finished whole computational process; After calculating section is to calculative information processing, the result is outputed to output, i.e. display terminal, the just LCD screen of digital camera or touch screen.

Whole operation principle is summarized as follows:

The simple computation function of described digital camera, the importation is realized by touch screen or button, because free-standing keyboard interface is too big to the waste of input interface, what calculator C9821 adopted is matrix keyboard, because the button of digital camera all is to adopt matrix keyboard mostly, so realize the keyboard input process, only need the respective keys function on the script camera be corresponded to corresponding position signalling and can realize input.Its operation principle is roughly as follows: under calculator function, the line of keyboard by on draw the PMOS pipe to receive on the power supply CGG, all lines obtain a button confirmation signal KEY by a Z type NOR gate, internal circuit is judged pressing of respective keys by the comment state of ranks line, and identifies concrete key assignments and realize corresponding function.When the touch-screen input signal, the interface function of the corresponding relevant position of the signal of contact position, thus finish the input of corresponding data; And when using button to realize importing, in order to reduce the influence of calculator logarithmic code camera volume and number of keys, when entering calculator function, original button will be defined as new function on the digital camera, the corresponding button on the calculator interface is selected in the control of for example original directionkeys, middle acknowledgement key can realize to current selection give up really into; Touch potential when importing for the ease of calculating, reducing, all the other buttons on digital camera can be defined as respectively: add, subtract, multiplication and division, equal and remove, can improve the efficient of input greatly like this, and no longer need to increase new button on the basis of original button making full use of

Secondly, the information of input is sent to the part of being responsible for calculating, be digital signal processor (DSP) and calculator chip, the modern computing device uses an integrated circuit (IC) chip to finish complete functions such as various computings, display driver and keyboard interface, what rely on is highly integrated dynamic CMOS logic and microcode designing technique, repertoire module except that keyboard matrix and LCD that this single-chip is integrated comprises RC oscillator, power module, LCD driver module, keyboard interface, registers group, microprogram control unit and a procedure stores ROM etc.The calculator chip of digital camera described in the utility model is a source with the calculator single-chip C9821 of Hong Kong Xing Hua company, the implementation procedure that basic function now is described is as follows: the single-chip calculator is the application system of a MCU from essence, its operation principle is exactly the input request of MCU by keyboard interface response keyboard, by the analysis of program pointer PC to keyboard input signal, form different ROM address values, ROM translates corresponding instruction from the microprogram storage, each register and RAM are carried out corresponding operating, and commander PC generates next bar instruction storage address in ROM, so repeatedly, finish specific function at last.The calculator product C9821 of Xing Hua company adopts 1.5V battery or solar cell for supplying power usually, just can drive LCD and show directly by the power supply of fuselage power supply in digital camera like this.

After calculating section is to calculative information processing, the result is outputed to output, calculator chip C9821 is built-in LCD drive circuit can directly drive LCD, sees needed result of calculation.

The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (3)

1. digital camera with simple computation function, it is characterized in that: comprise importation, calculating section and output, described calculating section is made up of digital signal processor and calculator chip, and the importation is connected with digital signal processor, calculator chip and output successively.

2. a kind of digital camera with simple computation function according to claim 1 is characterized in that: described importation is camera button or camera touch screen.

3. a kind of digital camera with simple computation function according to claim 1 is characterized in that: described output is camera LCD screen or camera touch screen.

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