Apparatus, system and method of controlling wireless transmission of video streams

• US 9,386,257 B2
• Filed: 08/15/2013
• Issued: 07/05/2016
• Est. Priority Date: 08/15/2013
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Sankar, Radhakrishnan, Shao, Lei, Ge, Peng, Chen, Inching, Karacaoglu, Ulun, Lin, Xintian E.
• Primary Examiner(s): HANCE, ROBERT J
• Application Number:
  US13/967,474
• Publication Number:
  US 20150049250A1
• Time in Patent Office: 1,055 Days
• US Class Current: 1/1
• CPC Class Codes: H04N 19/10 using adaptive coding
• CPC Class Codes: H04N 19/162 User input
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/166 concerning the amount of transmission errors, e.g. bit error rate [BER]
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• CPC Class Codes: H04N 21/234363 by altering the spatial resolution, e.g. for clients with a lower screen resolution
• CPC Class Codes: H04N 21/234381 by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/4312 involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
• CPC Class Codes: H04N 21/4316 for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/47 End-user applications

Abstract

Some demonstrative embodiments include apparatuses, systems and/or methods of controlling wireless transmission of video streams. For example, an apparatus may include a controller to control one or more windows to be displayed by a display device, the one or more windows to display video of one or more wireless video streams of a plurality of wireless video streams transmitted by a plurality of video sources, the controller is to request at least one video source of the plurality of video sources to set one or more attributes of a video stream transmitted by the video source based on at least one predefined criterion.

Claims

1. An apparatus comprising:

at least one radio to concurrently communicate directly with a plurality of wireless communication devices over a plurality of wireless network communication links, and to receive a plurality of wireless video streams from a plurality of video sources via the plurality of wireless network communication links; and

a controller to control two or more windows to be displayed by a display device, said two or more windows to display video of two or more wireless video streams of said plurality of wireless video streams, said controller is to send to at least one video source of said plurality of video sources at least one request to set one or more attributes of a video stream transmitted by said video source based at least on a drop rate of the video stream, said controller is to request said video source to set an encoding bit rate of said video stream based on a frame rate of said video stream and a size of a window to display video of said video stream, said controller is to request said video source to decrease the frame rate of said video stream if the encoding bit rate of said video stream decreases.

2. The apparatus of claim 1, wherein said attributes include at least one attribute selected from the group consisting of a resolution of said video stream, the frame rate of said video stream, the encoding bit rate of said video stream, and whether or not said video stream is to be transmitted.

3. The apparatus of claim 1, wherein said controller is to send said at least one request based on one or more window attributes relating to said two or more windows.

4. The apparatus of claim 3, wherein said one or more window attributes include at least one attribute selected from the group consisting of a number of said two or more video streams to be displayed, a resolution of the window to display video of said video stream, and whether or not said window is active.

5. The apparatus of claim 4, wherein said controller is to request said video source to set a resolution of said video stream based on the number of said two or more wireless video streams.

6. The apparatus of claim 4, wherein said controller is to request said video source to set a resolution of said video stream based on the resolution of said window.

7. The apparatus of claim 4, wherein said controller is to request said video source to halt transmission of said video stream when video of said video stream is not to be displayed.

8. The apparatus of claim 4, wherein said controller is to request said video source to set the frame rate of said video stream to a first rate, when said window is active, and to set the frame rate of said video stream to a second rate, when said window is non-active, said second rate is lesser than said first rate.

9. The apparatus of claim 1, wherein said controller is to send said at least one request based on a criterion relating to at least one attribute selected from the group consisting of the frame rate of said video stream and the encoding bit rate of said video stream.

10. The apparatus of claim 1, wherein said controller is to request said video source to set the encoding bit rate of said video stream based on the drop rate of said video stream.

11. The apparatus of claim 10, wherein said controller is to request said video source to decrease the encoding bit rate of said video stream if the drop rate of said video stream is greater than a first predefined threshold, and to increase the encoding bit rate of said video stream if the drop rate of said video stream is lesser than a second predefined threshold.

12. The apparatus of claim 1, wherein said controller is to cause said radio to transmit a feedback to said video source, wherein said feedback includes said one or more attributes.

13. The apparatus of claim 1, wherein said two or more wireless video streams are to be received over at least one link selected from the group consisting of a Wireless Fidelity (WiFi) link, a Wireless Display (WiDi) link, and a wireless gigabit (WiGig) Display Extension (WDE) link.

14. A system comprising:

a display to display two or more windows including video of two or more wireless video streams of a plurality of wireless video streams from a plurality of video sources;

at least one antenna to concurrently communicate directly with a plurality of wireless communication devices over a plurality of wireless network communication links, and to receive said plurality of wireless video streams via the plurality of wireless network communication links; and

a controller to send to at least one video source of said plurality of video sources at least one request to set one or more attributes of a video stream transmitted by said video source based at least on a drop rate of the video stream, said controller is to request said video source to set an encoding bit rate of said video stream based on a frame rate of said video stream and a size of a window to display video of said video stream, said controller is to request said video source to decrease the frame rate of said video stream if the encoding bit rate of said video stream decreases.

15. The system of claim 14, wherein said attributes include at least one attribute selected from the group consisting of a resolution of said video stream, the frame rate of said video stream, the encoding bit rate of said video stream, and whether or not said video stream is to be transmitted.

16. The system of claim 14, wherein said controller is to send said at least one request based on one or more window attributes relating to said two or more windows.

17. The system of claim 16, wherein said one or more window attributes include at least one attribute selected from the group consisting of a number of said two or more video streams to be displayed, a resolution of the window to display video of said video stream, and whether or not said window is active.

18. The system of claim 17, wherein said controller is to request said video source to set a resolution of said video stream based on the number of said two or more wireless video streams.

19. The system of claim 14, wherein said controller is to send said at least one request based on a criterion relating to at least one attribute selected from the group consisting of the frame rate of said video stream and the encoding bit rate of said video stream.

20. A method to be performed by a video display device, the method comprising:

concurrently communicating directly with a plurality of wireless communication devices over a plurality of wireless network communication links;

controlling, at the video display device, two or more windows to display video of two or more wireless video streams of a plurality of wireless video streams from a plurality of video sources via the plurality of wireless network communication links; and

transmitting at least one wireless transmission including at least one request to at least one video source of said plurality of video sources, the at least one request including a request to set one or more attributes of a video stream transmitted by said video source based at least on a drop rate of said video stream, a request to set an encoding bit rate of said video stream based on a frame rate of said video stream and a size of a window to display video of said video stream, and a request to decrease the frame rate of said video stream if the encoding bit rate of said video stream decreases.

21. The method of claim 20, wherein said attributes include at least one attribute selected from the group consisting of a resolution of said video stream, the frame rate of said video stream, the encoding bit rate of said video stream, and whether or not said video stream is to be transmitted.

22. The method of claim 20 comprising transmitting the at least one request based on a criterion relating to at least one attribute selected from the group consisting of the frame rate of said video stream and the encoding bit rate of said video stream.

23. A product including a non-transitory storage medium having stored thereon instructions that, when executed by a machine, result in:

concurrently communicating directly with a plurality of wireless communication devices over a plurality of wireless network communication links;

controlling two or more windows to display video of two or more wireless video streams of a plurality of wireless video streams from a plurality of video sources via the plurality of wireless network communication links; and

requesting at least one video source of said plurality of video sources to set one or more attributes of a video stream transmitted by said video source based at least on a drop rate of said video stream, to set an encoding bit rate of said video stream based on a frame rate of said video stream and a size of a window to display video of said video stream, and to decrease the frame rate of said video stream if the encoding bit rate of said video stream decreases.

24. The product of claim 23, wherein said attributes include at least one attribute selected from the group consisting of a resolution of said video stream, the frame rate of said video stream, the encoding bit rate of said video stream, and whether or not said video stream is to be transmitted.

25. The product of claim 23, wherein said instructions result in requesting said video source to set said attributes based on one or more window attributes relating to said two or more windows.

26. The product of claim 23, wherein said instructions result in requesting said video source to set said attributes based on at least one attribute selected from the group consisting of the frame rate of said video stream and the encoding bit rate of said video stream.