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Multi-device cascading systems and devices with video interfaces

A technology of video interface and cascading system, which is applied in parts of TV system, parts of color TV, TV, etc. to achieve high transmission speed and simplify cable connection

Active Publication Date: 2020-01-31
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a multi-device cascading system and a device with a video interface, which solves the problem in the prior art that a serial connection line separate from the video line needs to be used for communication

Method used

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  • Multi-device cascading systems and devices with video interfaces
  • Multi-device cascading systems and devices with video interfaces
  • Multi-device cascading systems and devices with video interfaces

Examples

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no. 1 example

[0025] like figure 1 As shown, a device 100 with a video interface provided in the first embodiment of the present invention includes: a video interface 101 , a controller 103 and a video interface 105 . The video interface 101 is connected to the controller 103 through a serial bus, and the video interface 105 is connected to the controller 103 through a serial bus. One of the video interface 101 and the video interface 105 is used as a video input interface, and the other is used as a video output interface; and in this embodiment, both the video interface 101 and the video interface 105 are video cable connection ports.

[0026] More specifically, the video interface 101 is connected to a serial bus interface configured by the controller 103 via a serial bus through some pins that are not used for video signal transmission, such as two pins; Some pins for signal transmission, such as two pins, are connected to another serial bus interface configured by the controller 103 v...

no. 2 example

[0039] like Figure 4 As shown, a multi-device cascade system 400 in the second embodiment of the present invention includes: a plurality of devices 401, 402, . . . , 40N. These devices 401, 402, ..., 40N are cascaded through video cables; each device 401, 402, ..., 40N can adopt the device 100 with video interface of the first embodiment, and each device 401, 402, ... , 40N can be Figure 3A the indicated video processor or Figure 3B The display controller shown.

[0040] With the above, Figure 4 The multi-device cascading system 400 shown belongs to the bus-type architecture, and each device 401, 402, ..., 40N has at least two video interfaces, and each video interface uses a serial bus cascading solution, which can transmit video data or Cascading scenarios can be done.

[0041] To sum up, this embodiment only needs the video cable to complete the video signal transmission and serial bus cascading solution, saving materials; moreover, the video cable is better than t...

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Abstract

The embodiment of the invention discloses a multi-device cascade system. The multi-device cascade system comprises multiple devices; each device is provided with a first video interface, a second video interface and a controller; furthermore, the first video interface and the second video interface are video line connection interfaces; the controller is separately connected to a part of pins of the first video interface and a part of pins of the second video interface through serial buses; the multiple devices include a first device and a second device; and the first video interface of the second device is connected to the second video interface of the first device or the first video interface of the first device through a video line. The invention further discloses a device with a video interface, which can be applied to the multi-device cascade system.

Description

technical field [0001] The invention relates to the technical field of device control, in particular to a multi-device cascading system and a device with a video interface. Background technique [0002] In the field of display screen control, the cascade access scheme design of equipment mainly includes bus type and star structure. The bus type structure mainly uses serial bus and other bus architectures that support one master and multiple slaves. This structure requires less equipment and cables. . [0003] In the existing bus architecture, in addition to being connected by video lines, multiple devices are also connected by serial port connection lines; the video line is used to transmit video signals, and the serial port connection line is used to transmit cascade control signals, such as for Each device performs control signals such as sequencing and access. In the process of realizing the present invention, the inventor found that there are at least the following pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765H04N5/222
CPCH04N5/222H04N5/765
Inventor 梁伟刘钊王伙荣
Owner XIAN NOVASTAR TECH
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