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Electronic diary with foldable standard keyboard

A technology of electronic notepad and standard keyboard, which is applied in the direction of electric digital data processing, instruments, general-purpose stored program computers, etc., can solve the problems of inability to use input methods, slow text entry speed, and inability to realize input, etc. Fast speed and good overall effect

Inactive Publication Date: 2013-02-13
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the electronic notepad is a portable device, it is required that the volume should not be too large. Therefore, the mechanical keyboard configured on it is generally a numeric keypad or a micro-sized full-alphabetic keyboard. Although the full-letter keyboard can use the common input method on the PC, but because the size is too small, it is impossible to use both hands to input normally, and the text input speed is slow.
With the advancement of technology, the existing touch screen can use handwriting input and virtual keyboard input, which is more convenient in function. However, there are also problems of poor compatibility between the input method and PC, and slow input speed.
[0004] In addition to the dedicated electronic notepad, at present, most handheld electronic devices can realize the function of note taking, but usually cannot realize the function of inputting through a standard keyboard.
External standard keyboard is not easy to carry

Method used

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  • Electronic diary with foldable standard keyboard
  • Electronic diary with foldable standard keyboard
  • Electronic diary with foldable standard keyboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: Referring to Fig. 1, an electronic notepad with a foldable standard keyboard includes a main control module 400, a display module 300, an input module 100 and a power supply module 200, the input module 100 is a foldable standard keyboard, and the keyboard is The interface on the main control module is connected with the main control module; the display module is an LCD display, the main control module includes a main control chip, a storage unit and a real-time clock, and the main control chip is provided with a USB interface for connecting to an upper computer or a charging power supply .

[0036] FIG. 2 is a specific module schematic diagram of this embodiment, wherein the main control chip module 410 adopts an 8-bit single-chip microcomputer AT89C51. The power module 200 adopts +5V voltage input and can provide +5V, +3.3V regulated output. The real-time clock module 420 uses a dedicated real-time clock chip DS1302, please refer to Figure 3, Figure 3 is...

Embodiment 2

[0041] Embodiment 2: This embodiment is generally similar to Embodiment 1. Please refer to FIG. 5. The main control chip module 410 adopts a 16-bit MSP430F2618 single-chip microcomputer. features. The power module 200 adopts +5V voltage input, and can provide +5V, +3.3V regulated output. The real-time clock module adopts the real-time clock chip DS1302, and the connection diagram refers to Figure 3. The interface module 440 adopts a standard PS / 2 keyboard interface, and the connection diagram refers to Figure 4. At the same time, the USB interface module in this program uses another USB-to-serial port chip PL2303HX. Because the MSP430F2618 MCU has more abundant pins, the storage unit module 430 of this solution uses the Nand Flash chip K9FIG08UOM, with a capacity of 128M bytes, and also has the characteristics of low power consumption. It can read and write by page and erase by block. The / O port is time-division multiplexed as a command / address / data pin.

Embodiment 3

[0042] Embodiment 3: Please refer to Figure 6. The main control chip module 410 adopts a 32-bit ARM series single-chip microcomputer. This solution uses a 32-bit processor STM32F103ZET6 with a Cortex-M3 core, a main frequency of 72M, a 512K on-chip flash, and a 64K on-chip SRAM in LQFP144 package. The power module 200 adopts +5V voltage input, and can provide +5V, +3.3V regulated output. The real-time clock module 420 of this solution adopts the RTC (real-time clock) inside the chip. Its power supply and clock are independent of the core, and the internal registers will not be affected by system reset and power-off. The real-time clock is powered by a +3.3V button battery. Please refer to Figure 7, which shows the connection diagram of the external crystal oscillator circuit of the chip and the single-chip microcomputer. This circuit is used to drive the RTC real-time clock. After pressing a specific key combination, the initial value of the time can be set at any time throu...

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Abstract

The invention relates to an electronic diary with a foldable standard keyboard. The electronic diary comprises a main control module, a display module, an input module and a power supply module. The electronic diary is characterized in that the input module is a foldable standard keyboard; the keyboard is connected with the main control module through an interface on the main control module; the main control module and the power supply module are arranged inside one shell; the display module is an LCD (Liquid Crystal Display) display screen module; the shell is provided with a plugging interface; and the LCD display screen module is connected with the main control module through the plugging interface. The electronic diary has the characteristics of being few in components, light in weight, small in size after being folded up, convenient to carry over and little in power consumption, and thus the electronic diary is particularly applicable to computer fans or professionals who are used to standard keyboard input or have great dependency on a standard keyboard.

Description

technical field [0001] The invention relates to a portable electronic device with recording function, in particular to an electronic notepad with a standard keyboard, especially a folding standard keyboard. Background technique [0002] With the rapid development of electronic technology and control technology, more and more electronic notepads are available for consumers to choose. The input device of present electronic notepad usually has two types of mechanical keyboard structure and touch screen structure. [0003] Since the electronic notepad is a portable device, it is required that the volume should not be too large. Therefore, the mechanical keyboard configured on it is generally a numeric keypad or a micro-sized full-alphabetic keyboard. Although the full-letter keyboard can adopt the common input method on the PC, because the size is too small, it is impossible to use both hands to input normally, and the text input speed is slow. With the advancement of technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/16G06F15/76
Inventor 乔东海张骥吕勇建
Owner SUZHOU UNIV
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