System having plurality of memory devices and data transfer method for the same

一种数据传输方法、存储装置的技术，应用在电数字数据处理、输入/输出到记录载体、仪器等方向，能够解决研究不够充分等问题

Inactive Publication Date: 2010-10-13
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is insufficient research on this point in the prior art

Method used

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  • System having plurality of memory devices and data transfer method for the same
  • System having plurality of memory devices and data transfer method for the same
  • System having plurality of memory devices and data transfer method for the same

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Experimental program
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no. 1 approach

[0065] B. First Embodiment ( Figure 6 ~ Figure 11 ):

no. 2 approach

[0066] C. Second Embodiment ( Figure 12 to Figure 25 ):

[0067] D. Variations.

[0068] A. The structure of the printing system:

[0069] figure 1 It is an explanatory diagram showing a schematic configuration of a printing system. This printing system includes a printer 20 as a printing device and a computer 90 . The printer 20 is connected to a computer 90 via a connector 80 .

[0070] The printer 20 includes a sub-scanning transport mechanism, a main scanning transport mechanism, a head drive mechanism, and a main control unit 40 . The sub-scanning conveyance mechanism includes a paper feed motor 22 and a spool 26 , and conveys the paper PA in the sub-scanning direction by transmitting the rotation of the paper feed motor to the spool. The main scanning transport mechanism includes a carriage motor 32 , a pulley 38 , a drive belt 36 tensioned between the carriage motor and the pulley, and a slide shaft 34 arranged in parallel with the axis of the spool 26 . The car...

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PUM

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Abstract

The present invention provides a system having a plurality of memory devices and a data transfer method for the same, capable of appropriately carrying out data transmission at a high speed and reducing a consumption current during the data transmission. The control section performs a write operation, in synchronism with a clock signal, for transferring write data to one of the plurality of memory devices, utilizing: (i) an identification information transmission period during which the control section sends the identification information of a single memory device to all of the plurality of memory devices through the data line to select the single memory device; (ii) a write data transmission period during which the control section sends a single set of write data having a prescribed sizeto the selected single memory device; and (iii) a response period during which the selected single memory device responds to the control section with a response signal indicating presence or absence of communication error in relation to the received set of write data. Communications between the control section and the selected memory device during the write data transmission period and the response period are repeatedly performed for each transmission of one of plural sets of write data having the prescribed size. The control section sets a frequency of the clock signal during the response period to a lower value than that of the clock signal during the write data transmission period.

Description

technical field [0001] The present invention relates to a system with multiple storage devices, and more particularly to its data transmission method. Background technique [0002] An ink container, which is a detachable liquid container, is usually attached to an inkjet printing device as an example of a liquid ejecting device. A storage device is provided in the ink container. For example, various information such as the remaining amount of ink in the ink container and the color of the ink are stored in the storage device (Patent Documents 1 and 2). The control device provided in the printing device communicates with the storage device of the ink container. [0003] However, in the prior art, the reliability of the communication between the control device provided in the printing device and the storage device of the ink container was not considered very much. For example, poor communication between the control device provided in the printing device and the storage devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F13/16
CPCG06F13/4291
Inventor 朝内昇
Owner SEIKO EPSON CORP
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