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

A screen transmission control method, device, system and related equipment

A technology of screen transmission and control device, applied in the direction of digital output to display devices, instruments, selective content distribution, etc., can solve problems such as inability to achieve

Active Publication Date: 2019-01-01
CHINA MOBILE COMM GRP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the current Miracast technology only supports one-to-one data transmission, that is, one Source device transmits data to one Sink device, and its network topology diagram is as follows figure 1 shown
In practical applications, many-to-one data transmission is required in application scenarios such as video telephony and wireless monitoring, that is, multiple Source devices transmit data to one Sink device, which cannot be realized by existing technologies

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
  • A screen transmission control method, device, system and related equipment
  • A screen transmission control method, device, system and related equipment
  • A screen transmission control method, device, system and related equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Such as figure 2 As shown, it is a schematic structural diagram of a screen transmission control system provided by an embodiment of the present invention, including at least one sending end device 21 and one receiving end device 22 .

[0087] It should be noted that, in figure 1 In the shown network topology structure, since only one Sink device and one Source device are included, there is no clear regulation for the Sink device or the Source device as GO (Group Owner, group leader). In the embodiment of the present invention, in order to support screen transmission between multiple Source devices and one Sink device, the Sink device is designated as the GO, no matter how many Source devices there are, it can only be used as the Client (client). In this way, as long as the Sink device has enough display resources remaining, the Source device can transmit its own screen to the Sink device for display.

[0088] In the embodiment of the present invention, the Sink devi...

Embodiment 2

[0115] In the process of the Source device A transmitting the screen to the Sink device, the Source device B also hopes to transmit the screen to the same Sink device. Similarly, after completing the M1 and M2 interactions in the WFD device discovery, WFD service discovery, device selection, connection establishment, and capability negotiation phases between the Source device B and the Sink device, B sends a screen display request message to the Sink device, that is, an M3 message, such as Figure 6a As shown in , it is a schematic diagram of screen transmission between Source device B and Sink device.

[0116] Such as image 3 As shown, the interaction process between the Source device B and the Sink device may include the following steps:

[0117] S35. The Source device B sends a screen display request message to the Sink device.

[0118] Specifically, the screen display request message sent by B to the Sink device carries display parameter information, which is assumed to...

Embodiment 3

[0137]During specific implementation, if Source device A selects the display window whose window number is 0, that is, Source device A occupies the entire screen of the Sink device. At this time, if Source device B sends a screen display request to the Sink device, due to all The display resources are occupied by Source device A, therefore, the Sink device currently has no display resources available. In this case, the sink device may send a display window adjustment message to the source device A to notify the source device A that the display window needs to be reduced and thus the display resolution is reduced. In order to send the display window adjustment message, a new message type M17 needs to be defined, which is used by the sink device to notify the source device that the current network environment changes, and it is recommended that the source device adjust the display window. M17 carries a set of available display windows, which are defined as follows:

[0138] A c...

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 discloses a screen transmission control method, apparatus, system and related equipment to achieve data transmission from a plurality of Source devices to one Sink device. A screen transmission control method applied by a receiving end device comprises steps of receiving a screen display request sent by a first sending terminal Source device, and returning first answer information to the first Source device. The screen display request carries display parameter information of the display screen; the first answer information carries a first display window cluster set; and the first display window cluster set is determined according to current available display source and display parameter information.

Description

technical field [0001] The present invention relates to the technical field of wireless co-screening of mobile terminals, in particular to a screen transmission control method, device, system and related equipment. Background technique [0002] Mobile terminal wireless screen sharing is an emerging screen sharing technology on mobile terminals, which pushes multimedia content on mobile terminals to remote devices for display by means of wireless networks. WiFi Display (WFD, wireless display) is a technical solution launched by the WiFi Alliance, and Miracast is a certification project for products implemented by the WiFi Alliance for WFD technology. Miracast devices provide simplified discovery and configuration technology, allowing users to quickly transfer multimedia content between devices. The technology and certification program is jointly developed by mobile and consumer electronics equipment manufacturers and chip manufacturers in the Wi-Fi Alliance. Miracast users ...

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): G06F3/14H04N21/436H04N21/431G09G5/00
Inventor 骆正虎
Owner CHINA MOBILE COMM GRP CO LTD