TWI320899B - - Google Patents

Description

1320899 IX. Description of the Invention: [Technical Field] The present invention relates to a computer keyboard, and more particularly to a computer keyboard having a detachable keypad. [Prior Art] Notebook computers have a large number of users in today's society.

It is convenient for users to use their computer to process or record at any time. " 'Heart: In order to save the size of the notebook computer, it is necessary to wear all the components to be smaller than the general desktop computer components. The keyboard is of course inevitably reduced in size; the general practice will be used. The keyboard for easy input of numbers is omitted, and its function is integrated into the English button. By using the power button, the tool is used for ". This way" causes the user to input a large number of numbers when using the notebook. Great inconvenience. ^ There is a small keyboard on the market that uses a universal serial port (simplified and USB) as a connection interface, which allows the user to use the notebook while taking notes. The computer is connected to the function key of the switching keyboard, and the product L ^ is used like the numeric keys on the general keyboard. The appearance of the built-in ^ really helps the notebook computer user a big favor, but for the plug-in

For users of PCs, since the PC must be equipped with a keyboard of -6 M, the USB keyboard will be used only on the notebook, so that in order to use the notebook, Purchase 3 1320899 interface. The internal keyboard of the above-mentioned keypad further includes a USB processing, and the 6 Xuan processing system is connected to the eight Sll μs...^ ^ / the output terminal is connected to a USB connector, and the other is connected with a plurality of inputs. The terminal is connected to the clock output and the data output. [Embodiment] Regarding the present invention, such as the first or - green boat - rain, the present invention has a small removable type

The computer keyboard of the keyboard is attached to the _Fly J, ^, Α group (1 〇) with a detachable nine-lude format sub-keyboard (2 〇, Taiyou rin, Λ), which is used for the valley ( 20), the corresponding position of the body (10) 〇) ^ ¥ M has a groove, when the keypad (2 U) is placed between them, the body η, the same. Wherein: the stomach (10) is similar to the general keyboard; the bottom of the keyboard 0) is provided with a first transmission interface, and in the second, the transmission interface is a USB connector (2 1 ), And on the surface in addition to the basic button group 0. r force ° there is - liquid crystal display (2 Z), a function switching device (2 3) 盥, X; D 卞 boot power Μ Μ security group (2 4) 'and close to the liquid crystal display crying. c 2 2) on the side of the long side is set to -2 transmission interface (not shown), in this embodiment, the transmission interface is a USB interface connector, A can be one

An external connection is connected to a USB transmission line (30), as shown in the third figure; the groove in the body (10) is provided with an interface connection port for the first: on the J: the disk (2〇) The transmission interface is connected, and is in the embodiment; the legacy interface is a USB connector (1 χ), field 矜, 0, press "丄, for the bottom surface of the aforementioned small key · ' 2 〇) The USB connector (21) is connected. 5

Since the keypad (20) is connected to the keyboard body, it can be easily removed by iiSB ci〇w, and the keypad (2 ο) is removed from the lightning W. Connection '·The other keypad (20) can also be used as a special: line (1)) and the bad by this function switching device (2 A is used by the leaf machine, the original nine-square grid number 11 knife, to s ten machine function, Use ρ, Λ heart button and the computer function button fine f 9/, that is, complete computer button. Continue group (24), _ f to achieve the function of the aforementioned keypad (2〇), the block diagram of its internal circuit The system includes: 4, the key of the keyboard/computer matrix (2 5) in the fourth figure; to identify the user pressing the display (2?, ) '- the input amount to connect the aforementioned keyboard/computer matrix machine function' Used to determine which button the user pressed - and open the calculation to calculate the result and display the crust on the liquid crystal display (2

The τ central processing unit (26 is connected to the liquid crystal-_ processor (27), which receives the clock signal and a data signal from the central processing unit (2), and is connected to the (4) connector 2 1 ) The data of the keypad can be transmitted through the USB interface; when the user presses the button of the keypad (2 ◦), the keyboard/counter matrix (2 5) transmits the § hole number to the central processing unit ( 26), = central processing list A (2 6) can determine which button is pressed, if it is the computer state, the central processing unit (2 6) performs the operation, and the result is displayed on the liquid crystal display (2 2) 6 See also the fifth figure 'Detailed circuit diagram of the central processing unit (26). The central processing unit (2 6 ) is processed by the number AB692-C0B. . 1C is composed, the pins p〇RT〇, p〇RT3~〇, p(10)~P0RT14 are connected to the keyboard/computer matrix (2 5 ), and the pins segi~SEG24' C0M1~C0M6 are connected to the liquid crystal display (2 2 ) 'Pedals 0RT1 and p〇RT2 are connected to the USB processor (2 7) through a resistor and transistor respectively to transmit the clock signal ακ and the data signal, while the pin P0RT1 5 is transmitted through the transistor and several resistors. Connected to the USB processor (27) to receive the Num button status signal. Referring back to the sixth figure, the detailed circuit diagram of the USB processor (27) is a processor ic numbered AB691_C0B. The pin PA_2 and the ρβ-〇 respectively receive the clock signal CLK and the data signal data transmitted by the central processing (2 6 ), and the pin LED 1 transmits the Num button status signal to the central processing. unit. . (2 6 ) 'The pins dp/pb_3 and DM/PB_2 transmit the clock signal CLK processed by the USB processing state (2 7 ) and the data signal mta through the interface (the first or second transmission interface) or Receive signals transmitted by the USB interface (the first or first transmission interface). It can be seen from the above that the function of the keyboard can be more diversified by the present invention. § When the general desktop computer is not used, the keypad can be easily disassembled, except that it can be connected to the notebook through a transmission line. It can also be used as a computer alone. In this way, it is not necessary to purchase an external keypad in order to input a large number of numbers on the notebook computer, so that the original ordinary keyboard greatly increases its added value. 1320899 In summary, the present invention has significantly improved efficiency compared to existing keyboards, and complies with the invention patent requirements, and filed an application in accordance with the law. [Simple description of the drawings] The first figure is a schematic diagram of the present invention and its upper keypad.

The second figure is a schematic diagram of the connection between the present invention and the upper keypad. The second figure is a schematic diagram of the connection between the upper keyboard and the transmission line of the present invention. FIG. 4 is a block diagram of the internal circuit of the upper keypad of the present invention. FIG. 5 is a circuit diagram of the internal keyboard of the upper keyboard of the present invention. Figure 6 is a schematic diagram of the internal circuit of the upper keypad of the present invention. [Main component symbol description] ((匕) body (1 1 ) USB connector I 2 0 ) Keypad Z 1 ) USB connector

2 2) Liquid crystal display (2 3 ) function switching device ((PR s , . . . 4 ) ° 10 machine function button ( and (2 5 ) keyboard / computer terminal built and (2 7 ) USB processor) central processing Unit 3 0) USB transmission line 8

Claims (1)

1370899 X. Patent application scope: 1 . A computer keyboard with a detachable keypad having a keyboard body ′ and a numeric keypad of the ninth house format on the body is a detachable keypad, wherein: the keypad is provided with a detachable keyboard The first age-old eight-T-dimension interface and a second transmission interface are provided with a liquid crystal display and a computer function button group on the surface of the keypad; The display device and the function switching device are the same, and a concave portion is formed on the body of the first keyboard, and a general keyboard slot is formed on the body. The groove is provided with an interface port and a transmission interface. The first wheel rim interface on the keypad is used in combination with the body, and the second transmission interface is used separately when separated from the body. 2. The computer keyboard with a removable keypad according to claim 1, wherein the internal circuit structure of the keypad comprises: a keyboard/computer matrix; the central processing unit has a plurality of output terminals respectively The foregoing liquid crystal display, the time wheel output end and a data wheel output end are connected, and an input terminal is connected to the keyboard/computer matrix. 3. The computer keyboard with the removable small keyboard as described in the scope of i or 2 of the patent application's m interface on the keypad is a USB interface. 4. The computer keyboard with a removable keypad as described in claim 3, wherein the internal circuit structure of the keypad further includes a USB processor. The processor is connected by an input/output terminal. USB connector, P320899 separately has a plurality of input terminals remotely connected to a, +β, and the clock output terminal and data output 5 are two types: the keyboard is connected to the small keyboard and has a first transmission surface: A round interface 'and another liquid crystal display, a function switching device and a computer function button group on the surface thereof; thereby using the first transfer interface on the keyboard and a keyboard body to use 'the second transmission medium (4) Used separately from the bulk material. , '6 · If you apply for a patent Fanyuan flute road structure, silk cover · · item mentioned keyboard, its internal electric keyboard / computer matrix; -t central processing unit, which has a plurality of rounds to connect the above liquid: : a display, a clock output and a data wheel output, and an input is connected to the aforementioned keyboard/computer matrix. 7 The keypad of the fifth or sixth aspect of the patent application, wherein the first and second transmission interfaces are respectively a USB interface. 8. The keypad as described in claim 7 of the patent application, the internal electrical manufacture 'further includes a usb processor, the processor is connected with a wheel and a wheel from the 丄W wheel end and the data wheel : Number of input terminals connected to the aforementioned clock', schema: such as the next page