WO2023063947A1 - Affichage et commutation de flux vidéo sur des dispositifs en guirlande - Google Patents

Affichage et commutation de flux vidéo sur des dispositifs en guirlande Download PDF

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Publication number
WO2023063947A1
WO2023063947A1 PCT/US2021/054849 US2021054849W WO2023063947A1 WO 2023063947 A1 WO2023063947 A1 WO 2023063947A1 US 2021054849 W US2021054849 W US 2021054849W WO 2023063947 A1 WO2023063947 A1 WO 2023063947A1
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WO
WIPO (PCT)
Prior art keywords
video
video stream
split
port
stream
Prior art date
Application number
PCT/US2021/054849
Other languages
English (en)
Inventor
Roger Dale BENSON
Richard ShiJian LIN
Original Assignee
Hewlett-Packard Development Company, L.P.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett-Packard Development Company, L.P. filed Critical Hewlett-Packard Development Company, L.P.
Priority to PCT/US2021/054849 priority Critical patent/WO2023063947A1/fr
Publication of WO2023063947A1 publication Critical patent/WO2023063947A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals

Definitions

  • Video conferencing systems may be installed in a meeting room and may include various types of devices, including a conferencing computer and peripheral devices to allow conferencing meetings.
  • a conferencing system may include a centrally located controller in the meeting room, which may be used to control the conferencing system.
  • FIG. 1 depicts a block diagram of an example apparatus that may split a first video stream to be displayed in a display device and send to a downstream device, and switch a path of a second video stream based on a location of the second video stream, in which the first video stream and the second video stream are sent in different directions;
  • FIG. 2 shows a block diagram of an example system that may include the example apparatus depicted in FIG. 1 ;
  • FIG. 3 shows a flow diagram of an example method for sending a first video stream to a display device and to a plurality of control devices, which may be sequentially connected in a daisy-chain, and switching a path for a second video stream based on a location of a video source for the second video stream.
  • the terms “a” and “an” are intended to denote at least one of a particular element.
  • the term “includes” means includes but not limited to, the term “including” means including but not limited to.
  • the term “based on” means based at least in part on.
  • a conferencing meeting may be conducted using a conferencing system, which may include a host computing device running a conferencing application.
  • the conferencing systems may be installed in a meeting room and may be built around the host computing device to include various types of peripheral devices.
  • the conferencing system may include a control device, which may also be referred to in the present disclosure as a video conferencing controller or a center of room control (CoRC), to enable the user to interact with the conferencing system.
  • the control device may be used to control an infrastructure of the meeting room including, for example, displays, webcams, microphones, speakers, lights, and/or the like.
  • the conferencing system may be implemented with a single control device, which may or may not be able to adequately control the conferencing system in a large room.
  • multiple control devices may be sequentially connected such that they are daisy-chained to each other, and each of the video conferencing controllers may enable two separate video streams to be relayed over the daisy-chained video conferencing controllers.
  • daisy-chained refers to a plurality of devices that are connected together in a linear series.
  • the control devices may have a display device, such as an LCD panel, a touch screen panel, and/or the like, to display a user interface for controlling the conferencing system.
  • control device may relay a first video stream, which may include data for a user interface, for display on a display device at the next connected control device.
  • control devices may also allow guest users to connect their own computing devices to access the conferencing system.
  • control devices may also relay a second video stream for the video conference, for instance, a video stream from the guest user, who may be connected to an input at one of the multiple control devices, for instance, to share a guest video for desktop sharing.
  • an apparatus may include a display panel, a video splitter, and a video switch.
  • the video splitter may receive a first video stream, split the first video stream into a first split video stream and a second split video stream, and send the first split video stream to the display panel and send the second split video stream in the first direction to be received at a downstream device.
  • the video switch may receive a second video stream in a second direction that is different than the first direction.
  • the video switch may switch a path through the video switch based on a location of a video source for the second video stream.
  • a conferencing system may allow a plurality of control devices to be installed in a video conferencing meeting room.
  • multiple control devices may be arranged around the room so that the control devices may be more accessible to the meeting participants.
  • the first video stream, the second video stream, the first split video stream, and the second split video stream may equivalently be termed the first video stream data, the second video stream data, the first split video stream data, and the second split video stream data, respectively.
  • the streaming of the video content may equivalently be described as the streaming of data representing or corresponding to the video content.
  • FIG. 1 depicts a block diagram of an example apparatus 100 that may split a first video stream 102 to be displayed on a display device 104 and sent to a downstream device, and switch a path of a second video stream 106 based on a location of a video source for the second video stream, in which the first video stream and the second video stream are sent in different directions.
  • FIG. 2 depicts a block diagram of an example system 200 that may include the example apparatus 100 depicted in FIG. 1. It should be understood that the example apparatus 100 and the system 200 may include additional features and that some of the features described herein may be removed and/or modified without departing from the scope of the apparatus 100 and the system 200.
  • the apparatus 100 may include a display device 104, a video splitter 108, and a video switch 114. According to examples, the apparatus 100 may receive a first video stream 102 in a first direction.
  • the first video stream 102 may be video data for a user interface that is to be displayed on the display device 104.
  • the first video stream 102 may be received from a computing device 202, also referred to herein as a conference room computing device, and relayed downstream to each of the apparatuses 100 and 100-1 to 100-n in the daisychain, as depicted in FIG. 2.
  • the first direction associated with the first video stream 102 may be a downstream direction relative to the first video stream 102, from the computing device 202 to the last apparatus 100-n.
  • the video splitter 108 may split the first video stream 102 into a first split video stream 110 and a second split video stream 112. The video splitter 108 may then send the first split video stream 110 to the display device 104 to be displayed. The video splitter 108 may send the second split video stream 112 in the first direction to be received at a downstream device, for instance, at the apparatuses 100-1 to 100-n.
  • the apparatuses 100-1 to 100-n may be the same as the apparatus 100 and may include all of the features as apparatus 100, as described with respect to FIG. 1. Apparatuses 100-1 to 100-n may each receive a copy of the first video stream 102, and may display a copy of the first video stream 102 on their respective display devices.
  • the apparatus 100 may include a first input/output (I/O) port 204 connected to the video splitter 108, and the first video stream 102 may be received at the apparatus 100 through the first I/O port 204.
  • the apparatus 100 may also include a second I/O port 206 connected to the video splitter 108, and the second split video stream 112 may be sent through the second I/O port 206 in the first direction, for instance, in the downstream direction with respect to the first video stream 102.
  • the I/O ports as disclosed herein may include universal serial bus (USB) ports, or other appropriate types of data ports or connections.
  • USB universal serial bus
  • the first I/O port 204 may be an upstream facing port (UFP), which may receive data from a data source, and the second I/O port 206 may be a downstream facing port (DFP), which may be a data source to send data, with respect to the second video stream 106.
  • the second video stream 106 may be sent downstream from the second I/O port 206 or a third I/O port 208 to the first I/O port 204.
  • the second video stream 106 may be received through different I/O ports 206 or 208 in the apparatus 100, based on the location of the video source, and may be output to the computing device 202 through the first I/O port 204.
  • the video splitter 108 may receive the first video stream 102 from a video conference application on the computing device 202.
  • the video splitter 108 may send the second split video stream 112 to a downstream control device, for instance, the apparatus 100-1.
  • the apparatus 100-1 may be connected downstream in the first direction, and may display a copy of the first video stream 102 using the second split video stream 112.
  • the video splitter 108 and the video switch 114 may be connected to a plurality of control devices, such as apparatuses 100-1 to 100-n.
  • the plurality of control devices may be connected in sequence to be daisy-chained to each other.
  • the video switch 114 may receive the second video stream 106 in a second direction that is different than the first direction.
  • the second video stream 106 may be a video stream from a guest computing device connected locally to an I/O port on the apparatus 100, or connected at one of the downstream apparatuses 100-1 to 100-2.
  • the video switch 114 may switch a path through the video switch 114 based on a location of a video source 212 for the second video stream 106.
  • the video switch 114 may set the path to select the local video source 210.
  • the video source for the second video stream 106 is an upstream video source 212, for instance, connected to an I/O port 216 located at an upstream control device, such as the apparatus 100-1 , the video switch 114 may set the path to select the upstream video source 212 at the apparatus 100-1 .
  • the apparatus 100 may include a control unit 214 to control the video switch 114 to connect to the location of the video source.
  • the control unit 214 may control the video switch 114 based on the location of the video source at one of a plurality of daisy-chained control devices, such as apparatuses 100-1 to 100-n, and respective states of video switches on the plurality of daisy-chained control devices.
  • the control unit 214 may be an integrated circuit, a microprocessor, semiconductor-based microprocessor, a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a microcontroller unit (MCU), and/or other hardware device.
  • FIG. 3 depicts a flow diagram of an example method 300 for sending a first video stream 102 to a display device 104 and to a plurality of control devices, such as apparatuses 100-1 to 100-n, which may be sequentially connected in a daisy-chain, and switching a path for a second video stream 106 based on a location of a video source for the second video stream 106.
  • the method 300 may include additional operations and that some of the operations described therein may be removed and/or modified without departing from the scope of the method 300.
  • a video splitter 108 may receive a first video stream 102.
  • the first video stream 102 may be displayed at each of a plurality of video conferencing controllers, such as apparatus 100 and apparatuses 100-1 to 100- n.
  • the plurality of video conferencing controllers may be sequentially connected in a daisy-chain.
  • the video splitter 108 may split or copy the first video stream 102 into a first split video stream 110 and a second split video stream 112.
  • the video splitter 108 may send the first split video stream 110 to a display device 104.
  • the video splitter 108 may send the second split video stream 112 to a subsequent video conferencing controller among the plurality of daisy-chained video conferencing controllers.
  • the video switch 114 may receive a second video stream 106 to be displayed in a video conference.
  • the video switch 114 may switch a path through the video switch 114 based on a location of a video source for the second video stream 106.
  • the location of the video source may be at an input port on one of the plurality of daisy-chained video conferencing controllers.
  • a control unit 214 may control the video switch 114 to connect to the location of the video source.
  • the control unit 214 may control the video switch 114 based on respective states of video switches on the plurality of daisy-chained control devices.
  • Some or all of the operations set forth in the method 300 may be included as utilities, programs, or subprograms, in any desired computer accessible medium.
  • the method 300 may be embodied by computer programs, which may exist in a variety of forms both active and inactive. For example, they may exist as machine-readable instructions, including source code, object code, executable code or other formats. Any of the above may be embodied on a non-transitory computer readable storage medium.
  • Examples of non-transitory computer readable storage media include computer system RAM, ROM, EPROM, EEPROM, and magnetic or optical disks or tapes. It is therefore to be understood that any electronic device capable of executing the above-described functions may perform those functions enumerated above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Un appareil donné à titre d'exemple peut comprendre un dispositif d'affichage, un séparateur vidéo et un commutateur vidéo. Le séparateur vidéo peut recevoir un premier flux vidéo dans une première direction et peut diviser le premier flux vidéo en un premier flux vidéo divisé et en un second flux vidéo divisé. Le diviseur vidéo peut envoyer le premier flux vidéo divisé au dispositif d'affichage et envoyer le second flux vidéo divisé dans la première direction pour qu'il soit reçu au niveau d'un dispositif aval. Le commutateur vidéo peut recevoir un second flux vidéo dans une seconde direction qui peut être différente de la première direction. Le commutateur vidéo peut commuter un chemin à travers le commutateur vidéo sur la base d'un emplacement d'une source vidéo pour le second flux vidéo.
PCT/US2021/054849 2021-10-13 2021-10-13 Affichage et commutation de flux vidéo sur des dispositifs en guirlande WO2023063947A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2021/054849 WO2023063947A1 (fr) 2021-10-13 2021-10-13 Affichage et commutation de flux vidéo sur des dispositifs en guirlande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2021/054849 WO2023063947A1 (fr) 2021-10-13 2021-10-13 Affichage et commutation de flux vidéo sur des dispositifs en guirlande

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WO2023063947A1 true WO2023063947A1 (fr) 2023-04-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2321183C2 (ru) * 2005-12-23 2008-03-27 Григорий Гемфриевич Дмитриев Способ и система осуществления видеоконференций
US20120013705A1 (en) * 2010-07-15 2012-01-19 Cisco Technology, Inc. Switched multipoint conference using layered codecs
US20160165149A1 (en) * 2011-06-02 2016-06-09 Luxi Electronics Corp. Daisy Chain Devices and Systems for Signal Switching and Distribution
US20170187610A1 (en) * 2001-04-30 2017-06-29 Facebook, Inc. Duplicating digital streams for digital conferencing using switching technologies
CN107071303A (zh) * 2017-03-24 2017-08-18 北京科技大学 一种数字化多讲台同播系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170187610A1 (en) * 2001-04-30 2017-06-29 Facebook, Inc. Duplicating digital streams for digital conferencing using switching technologies
RU2321183C2 (ru) * 2005-12-23 2008-03-27 Григорий Гемфриевич Дмитриев Способ и система осуществления видеоконференций
US20120013705A1 (en) * 2010-07-15 2012-01-19 Cisco Technology, Inc. Switched multipoint conference using layered codecs
US20160165149A1 (en) * 2011-06-02 2016-06-09 Luxi Electronics Corp. Daisy Chain Devices and Systems for Signal Switching and Distribution
CN107071303A (zh) * 2017-03-24 2017-08-18 北京科技大学 一种数字化多讲台同播系统

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