Unlock instant, AI-driven research and patent intelligence for your innovation.

Interface device and method for writing spreading display recognition data

An interface device, a technology for identifying data, applied in the field of communication interfaces, can solve the problems of troublesome maintenance, labor and time costs, etc., and achieve the effect of reducing product operation process and production cost

Active Publication Date: 2010-09-01
CORETRONIC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the projector requires more than one type of EDID data, it takes a lot of labor and time to burn the EDID. Moreover, after the product leaves the factory, if the EDID data is damaged, it will be very troublesome to repair. , must be manually checked and then rewritten

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Interface device and method for writing spreading display recognition data
  • Interface device and method for writing spreading display recognition data
  • Interface device and method for writing spreading display recognition data

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0016] Figure 1A is a block diagram of a display device according to an embodiment of the present invention. The display device 100 includes an interface device 102 and a display unit 104 . The interface device 102 stores at least one extended display identification data, and can receive multimedia signals input by an external device through the connector, and the display unit 104 is used to display the received multimedia signals. The display device 100 is, for example, a projector, a liquid crystal display, and the like.

[0017] Wherein, when the display device 100 is initialized, the interface device 102 will detect whether the extended display identification data is correct, and rewrite the extended display identification data if the extended display identification data is incorrect. Generally speaking, the extended display identification data will be stored in the EDID memory (such as EEPROM). When the interface device 102 detects that the extended display identificati...

no. 2 example

[0024] figure 2 is a circuit diagram of an interface device according to a second embodiment of the present invention. In this embodiment, the interface device 200 includes an M1-DA connector 252 and an HDMI connector 254, a switching unit 140, storage units 132, 134, 136, an addressing unit 120, and a data processing unit 110, wherein the addressing unit 120 is It is mainly composed of inverters 122 and 124 . The M1-DA connector 252 can support DVI signal.

[0025] In this embodiment, the switching unit 140 is an 8-to-4 multiplexer, the pin 1A corresponds to the pins 1B1 and 1B2, the pin 2A corresponds to the pins 2B1 and 2B2, and the pin 3A corresponds to the pins 3B1 and 3B2 , the pin 4A corresponds to the pins 4B1, 4B2. In this embodiment, the storage units 132, 134, 136 all utilize the I2C bus (Inter-Integrated Circuit Bus) to carry out data transmission, so each storage unit 132, 134, 136 is used for data transmission (including data burning) There are two I / O pins....

no. 3 example

[0033] From another point of view, the above embodiments can be summarized as a method for writing extended display identification data, which is applied to an interface device of a display device. Through the built-in memory writing function, the display device can automatically write or update the required extended display identification data, without manual programming one by one. image 3 It is a flowchart of a method for writing extended display identification data according to the third embodiment of the present invention.

[0034] In step S310, when the system is initialized, switch to the internal reading mode for the data processing unit of the interface device to check whether the extended display identification data is correct. At this time, the connection between the external device and the EDID memory is prohibited, and the internal system, such as the microprocessor of the display, checks the extended display identification data in the EDID memory. Then, if the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an interface device and a method for writing extended display identification data (EDID). The interface device comprises a data processing unit, a storage unit and a switching unit, wherein the storage unit is coupled with the corresponding connector and the data processing unit via the switching unit; and when the interface device is initialized, the data processing unit can detect whether the EDID in the storage unit are correct through the switching unit, if the EDID in the storage unit are not correct, the EDID are re-written.

Description

technical field [0001] The present invention relates to a communication interface, and in particular to an interface device storing extended display identification data (EDID) and a method for writing the extended display identification data. Background technique [0002] In order to support the extended display identification data standard of the Video Electronics Standards Association (VESA), the general practice is to use an electronic An erasable programmable read-only memory (EEPROM) stores a table of EDID contents corresponding to the input. [0003] The content of EDID is mainly to store the image resolution and frequency related information that the display device can support, so that the external input device can identify the suitable and usable resolution frequency range. Among the relevant input formats of the projector, such as HDMI, DVI, VGA, etc., most of them have EDID. In the process of mass production, in order to speed up the operation, part of the inform...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G06F3/14
Inventor 高铭志陈俊杰陈文晋
Owner CORETRONIC