JPH0452945A - Input device - Google Patents

Abstract

PURPOSE:To reduce the number of interface parts by transferring data from a key matrix part, a bar code reader interface part, and an ID card reader interface part to a higher-order device through a higher-order device interface part. CONSTITUTION:This device consists of a microprocessor (CPU) 7, a bar code reader interface part 2, an ID card reader interface part 3, a higher-order device interface part 4, a keyboard control part 5, and a key matrix part 6. The bar code interface part 2 takes data from a bar code reader as the input to send it to the CPU 7, and the ID card interface part 3 takes data from an ID card reader as the input to send it to the CPU 7. The keyboard control part 5 decodes input data from the key matrix part 6 and sends it to the CPU 7. The CPU 7 adds a header, which discriminates which input device the data is inputted from, to data and transfers this data to the higher-order device through the higher-order device interface part 4. Thus, the number of interfaces is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an input device, and particularly to an input device used in a PO8 terminal device.

[Conventional technology]

In a conventional input device used for a PO8 terminal device, a key matrix section (keyboard), a barcode reader, and an ID card reader have separate interface sections, respectively.
The host device also has separate interface sections corresponding to each, and is configured to control them individually.

[Problems to be Solved by the Invention] As described above, the input device of the conventional PO8 terminal device has separate interfaces for the keyboard, barcode reader, and ID card reader. When connecting these to each other, it is necessary to prepare an interface unit suitable for each interface, and there is a drawback that they must be individually controlled.

[Means to solve the problem]

The input device of the present invention includes a key matrix section, a barcode reader interface section for inputting data from a barcode reader, and an ID card reader interface section for inputting data from an ID card, and the key matrix section Data from the barcode reader interface section and the 11) power-reader interface section is transferred to the host device via the host device interface section.

That is, the input device of the present invention includes a key matrix section, a keyboard control section that decodes data input to the key matrix section, a barcode reader interface section that inputs data from a barcode reader, and an ID.
an ID card reader interface section for inputting data from a card reader, inputting data from the keyboard control section, the barcode reader interface section, and the ID card reader interface section and adding an identification header to them; It includes a microprocessor for outputting data, and a host device interface section for transferring signals from the microprocessor to a host device.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, the input device 1 of this embodiment includes a microprocessor (CPU) 7, a barcode reader interface section 2, an ID card reader interface section 3,
It is comprised of a host device interface section 4, a keyboard control section 5, and a key matrix section 6. The barcode interface section 2 receives data from the barcode reader, and the ID card interface section 3 receives data from the barcode reader.
Data from the D card reader is input and sent to the CPU 7. The keyboard control section 5 decodes input data from the key matrix section 6 and sends it to the CPU 7. C.P.
U7 adds a header to these data to determine from which input device the data has been input, and transfers the data to the higher-level device via the higher-level device interface section 4.

〔Effect of the invention〕

As explained above, the input device of the present invention inputs data from the key matrix section, the barcode reader interface section, and the ID card reader interface section to the CP'
By sending the PO to
In the PO8 terminal device, the number of interface sections can be reduced, and when the PO8 terminal device is controlled by a microprocessor, the number of interrupt lines can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Input device, 2... Barcode reader interface section, 3... ID card reader interface section, 4... Host device interface section, 5... Keyboard control section, 6... - Key matrix section, 7... microprocessor.

Claims (1)

[Claims] 1. Key matrix section, barcode reader interface section for inputting data from the barcode reader, and ID
and an ID card reader interface section for inputting data from the card, and transmits data from the key matrix section, the barcode reader interface section, and the ID card reader interface section via a host device interface section. An input device characterized in that data is transferred to a higher-level device. 2. A key matrix section, a keyboard control section that decodes data input to the key matrix section, a barcode reader interface section that inputs data from a barcode reader, and an ID card reader that inputs data from an ID card reader. an interface unit, a microprocessor that inputs data from the keyboard control unit, the barcode reader interface unit, and the ID card reader interface unit, adds an identification header to the data, and outputs the data; An input device comprising: a higher-level device interface unit that transfers a signal of the input device to a higher-level device.