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Peripher device and control method thereof

A technology of peripheral equipment and control methods, which is applied in the direction of instruments, electrical digital data processing, digital output to printing units, etc., and can solve problems such as data group size limitations

Inactive Publication Date: 2004-02-04
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in order to ensure the bandwidth, the size of the data group that can be transmitted by interrupt transmission is limited. In addition, in order to ensure the communication speed of the processed data, it is desired to widen the bandwidth for batch transmission. Therefore, it is desirable that the amount of data transmitted by interrupt transmission is small

Method used

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  • Peripher device and control method thereof
  • Peripher device and control method thereof
  • Peripher device and control method thereof

Examples

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Embodiment Construction

[0034] Embodiments of the present invention will be described below with reference to the drawings.

[0035] FIG. 1 shows an example in which a POS system 1 is configured by connecting peripheral devices (peripheral devices) of the present invention via a USB interface. In the POS system 1 of this example, a printer 15 , a user display 16 , a card reader 17 and a barcode scanner 18 are connected to a computer 11 as a host through a socket 12 . The peripherals of these printers 15, user displays 16, card readers 17 and barcode scanners 18 also have USB interfaces 5, and can perform data communication with the host computer 11 via USB.

[0036] Below, among these peripheral devices, the present invention will be described by taking the printer 15 as an example. figure 2 A schematic configuration of the printer 15 of this example is shown using a block diagram. The printer 15 of this example has a printing mechanism 31 that performs printing and application software (hereinafte...

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Abstract

Disclosed is a device adapted to be connected as a peripheral device to a host (12) and comprising a status transmission section (32, 33) for obtaining status information indicative of an operating condition of the device and for sending status information to the host, and an interface (14) for establishing a communication link via a bus type communication medium with the host, the interface being adapted to send and receive data by means of either one of at least a first and a second transfer mode, wherein, in said first transfer mode, data sending and receiving are enabled in response to an on-demand type input / output command from the host, and, in said second transfer mode, data sending and receiving are enabled in response to a periodic input / output command from the host. The status transmission section (32, 33) comprises first sending means (34) for transmitting status information by means of the first transfer mode, second sending means (35) for transmitting status information by means of the second transfer mode, and means for selecting said first or said second sending means according to the type of status information.

Description

technical field [0001] The invention relates to peripheral devices such as printers and scanners capable of communicating with a host computer and a control method thereof. Background technique [0002] Today, the Universal Serial Bus (hereinafter referred to as USB) has been adopted as a standard interface for most computers and peripherals. Hereinafter referred to as peripherals) for data communication. [0003] The USB is a cable-connected serial bus, which can simultaneously access many peripherals, and has high data reliability. Furthermore, it can be hot-swapped during work, connected, used, and disconnected with a host or peripherals, so , in the future as an interface to connect with more peripherals, consider adopting this USB. [0004] The data transfer between USB interfaces is by assigning the peripheral address (hereinafter referred to as address) according to the peripheral device on the USB and the peripheral device representing the sending or generating sou...

Claims

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Application Information

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IPC IPC(8): G06F3/12G06F13/00G06F13/12
CPCG06F3/1284G06F3/1236G06F3/1229G06F13/126G06F3/1204G06F13/10
Inventor 江尻圭吾
Owner SEIKO EPSON CORP
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