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Electronic reading device

A technology for electronic reading and electronic documents, which is applied in the fields of electronic digital data processing, static memory, special data processing applications, etc. Sexually overcome, widely used effect

Inactive Publication Date: 2009-04-15
符伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sources of electronic files of current e-readers are limited. Not every file or document that can be browsed on an ordinary computer or workstation can be played on an e-reader.
This greatly limits the scope of use of the current e-reader

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Please refer to image 3 As shown, the electronic reading device of this example includes: USB interface circuit, microprocessor, control storage unit, play display unit; Control storage unit includes dual-port RAM, format conversion logic module, JPEG compression module, flash memory (FLASH); The display unit includes a JPEG decompression module, a display drive circuit, a display cache, and a liquid crystal display.

[0023] The interface connection unit of the electronic reading device in this example adopts the Universal Serial Bus (Universal Serial Bus) protocol. The protocol can be realized by controlling the USB interface circuit through the interface driver and the control program by using the microprocessor as the controller. During the communication process, the control program can define the electronic reader as a USB peripheral device (DEVICE), and define the device type as a printer type (USB_DEVICE_CLASS_PRINTER). In this way, when a user prints an elect...

Embodiment 2

[0027] Please refer to Figure 5 As shown, the interface connection unit in the device of this example does not necessarily need to use the USB communication protocol and the USB communication chip to realize the communication protocol and chip implementation. There are many physical connections, protocol types and implementation methods that can be selected. For example: computer parallel communication interface, infrared port (IrDA), IEEE 1394 bus, Bluetooth (Bluetooth), network printing connection and other physical connections and related protocols and implementation methods. The core function of the interface connection unit is to define the device type of the e-reader as a printer peripheral when the e-reader is connected to a common computer or workstation, and to receive print data.

[0028] Alternatives exist for algorithms and implementation vectors and sequences that control storage units. For example, the format conversion can not only be converted into a bitmap, ...

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PUM

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Abstract

The electronic reading equipment relates to interface connecting unit, controlling location and display unit. The former is signed as printer equipment type connecting by physics or network connections to communicate with peripheral equipment and accept the download data as print data. The latter change the format of accepted print data into electronic document that can be played by display unit and the display unit can play it. This electronic reading equipment can eliminate the format restrict of electronic document to actual electronic reading equipment, storage and play any electronic file and document which be printed by common computer or network server to overcome the localization of electronic reading device for broad application and use.

Description

【Technical field】 [0001] The invention relates to an electronic device. 【Background technique】 [0002] With the rapid development of semiconductor technology and network technology, more and more people start to use electronic versions when reading text or graphic works. Electronic files greatly facilitate people's daily life and greatly reduce resource consumption. consume. At the same time, electronic reader products also came out. The electronic reader can be conveniently carried by users like books or paper media files, and has the function of playing electronic files, so that users can read electronic files more conveniently. The emergence of electronic readers may continue to expand the scope of electronic documents replacing paper, thereby making people's lives more convenient and saving paper and other printing or printing consumable resources. [0003] Please refer to figure 1 As shown, the existing electronic readers have independent hardware carriers. The co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00G06F3/12G06F3/147G06F17/30G11C7/16
Inventor 符伟
Owner 符伟
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