Character input method and apparatus for financial POS device

A character input and equipment technology, applied in the input/output process of data processing, cash register, electronic digital data processing, etc., can solve the problems of multi-key sharing and not supporting multiple mixed inputs, etc., and achieve simple input methods Effect

Inactive Publication Date: 2016-09-21
广东岭南通股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of use, this kind of products also exposed some shortcomings, such as the use of a matrix keyboard, resulting in multi-key sharing, and the problem of not supporting multiple mixed inputs

Method used

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  • Character input method and apparatus for financial POS device
  • Character input method and apparatus for financial POS device
  • Character input method and apparatus for financial POS device

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Embodiment Construction

[0040] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:

[0041] The invention provides a character input method for a financial POS device, which can realize mixed input of various numbers, letters and symbols.

[0042] Among them, the keyboard of the financial POS device adopts the matrix keyboard mode design, adopts the matrix keyboard mode design, and multiple characters share the same key, see figure 2 and image 3 , a matrix of 5 times 5 is used to represent 21 key values, and the key values ​​currently pressed by the user are obtained by scanning the GPIO ports of 10 CPU chips. In the initialization stage, ROW1 to ROW5 are set as pull-up outputs and are in a low level state, LINE1 to LINE5 are set as pull-up inputs, and LINE is set as an external interrupt mode. The coordinate position of the pressed button can be confirmed through the LINE line and the ROW line, that is, the key value.

[0043] see...

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PUM

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Abstract

The invention discloses a character input method and apparatus for a financial POS device. The method comprises the steps of judging whether a current input state is digital input or not, and if yes, receiving a key input signal through a key, obtaining a key value corresponding to the key according to the key input signal, and obtaining a digit corresponding to the key value according to the key value of the key; or otherwise, receiving the key input signal through the key, obtaining the key value corresponding to the key according to the key input signal, displaying all characters corresponding to the key value according to the key value of the key, displaying a serial number corresponding to each character, receiving the key input signal through the key, obtaining the key value corresponding to the key according to the key input signal, and obtaining the serial number corresponding to the key value according to the key value of the key so as to obtain the characters. The digital or character input can be switched; and for the character input, a user can select target characters that the user wants to input through serial number input by displaying all the characters corresponding to the key and the serial number corresponding to each character on a screen.

Description

technical field [0001] The invention relates to a financial POS device for financial payment, in particular to a character input method and device for the financial POS device. Background technique [0002] With the advancement of information technology and the development of the financial industry, financial POS has become an important means of offline payment. Major state-owned banks and commercial banks have launched their own financial POS. The biggest features of this type of financial POS are novel appearance, small size, easy to carry and flexible use, fast transaction speed, safe and reliable transactions, and are well received by merchants and cardholders. Welcome. However, in the process of use, this kind of products also exposed some shortcomings, such as the use of a matrix keyboard, resulting in multi-key sharing, and the problem of not supporting multiple mixed inputs. Contents of the invention [0003] In order to overcome the deficiencies of the prior art...

Claims

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Application Information

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IPC IPC(8): G06F3/023G07G1/00
CPCG06F3/023G06F3/0236G07G1/0018
Inventor 刘强方秋水谢振东徐锋宾小升何建兵吴金成
Owner 广东岭南通股份有限公司
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