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WO2001017246A1 - Procede et appareil permettant de relier un reseau de cameras en direct - Google Patents

Procede et appareil permettant de relier un reseau de cameras en direct Download PDF

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Publication number
WO2001017246A1
WO2001017246A1 PCT/US2000/023294 US0023294W WO0117246A1 WO 2001017246 A1 WO2001017246 A1 WO 2001017246A1 US 0023294 W US0023294 W US 0023294W WO 0117246 A1 WO0117246 A1 WO 0117246A1
Authority
WO
WIPO (PCT)
Prior art keywords
establishment
cameras
camera
information
central server
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2000/023294
Other languages
English (en)
Inventor
Karl Alomar
Michael Goldstein
David Lowrie
Greg Stolerman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NITETIME NETWORKS Inc
Original Assignee
NITETIME NETWORKS Inc
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 NITETIME NETWORKS Inc filed Critical NITETIME NETWORKS Inc
Publication of WO2001017246A1 publication Critical patent/WO2001017246A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19654—Details concerning communication with a camera
    • G08B13/19656—Network used to communicate with a camera, e.g. WAN, LAN, Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678—User interface
    • G08B13/19682—Graphic User Interface [GUI] presenting system data to the user, e.g. information on a screen helping a user interacting with an alarm system
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678—User interface
    • G08B13/19691—Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources

Definitions

  • This present invention relates to field of video surveillance.
  • the present invention relates to linking a network of video cameras through the Internet or other wide area network connection.
  • a system of linked computer networks international in scope, that facilitates data communication services such as remote login, file transfer, electronic mail, and newsgroups.
  • the Internet is a way of connecting existing computer networks that greatly extends the reach of each participating system.
  • internet written with a lower case "i" usually refers to a group of local area networks (LANs) that have been connected by means of a common communications protocol.
  • LANs local area networks
  • the present invention does not deaf with LAN connections.
  • a Web site is a home and or location on the World Wide Web, where the Web site is made up of Web pages. These pages can contain graphics, text, audio, video and other dynamic and/or static materials.
  • Web site is constantly used interchangeably with other terms, like home page and "web page.” Therefore, one may refer to their "home page” when in fact they are talking about an entire "Web site.” Some even refer to a Web site simply as a "Web page,” when in fact a Web page is just a single piece of potentially hundreds of other pages making up the entire "site.” Similarly, the home page is more correctly the "front door” or entrance to the "web” of other pages linked to the Web site. The process of moving through a Web site is called navigation.
  • a Web site is also considered to be simply any computer hooked up to the Internet and available via a hostname, domain name or URL.
  • a Portal is a Web site that offers a broad array of resources and services such as e- mail, discussion forums, search engines, and on-line shopping malls.
  • the first Web portals were online service providers (for example AOL), but now most of the traditional search sites have transformed themselves into Web portals to attract and retain a larger audience.
  • the Internet has been a gateway from the real world to the virtual world and was utilized mainly as a source of information. While building in popularity, the full potential of the limited service had not yet been realized. Therefore, even though the current format of the Internet has developed quickly, the present invention realizes that the future of the Internet may still be developed over time, and envisions the applicability to all future forms of the Internet.
  • the new network also offered a development that has modified an international form of communication, e-mail.
  • the Internet is a new method of entertainment that offers an opportunity for the masses to reach a number of unreachable locations and facilities.
  • e-mail traffic on the web amounts to ten times as much as mail in the U.S. postal office.
  • small efforts have been made to supply video information on the real world from an Internet portal.
  • the present invention is also related to video security.
  • security and management has been constrained to being onsite.
  • Security cameras can only be monitored on the premises or viewed offsite through the use of videotapes which must be previously recorded. This limits the use of these devices for small establishments.
  • Videotapes are also not viewed often. Unlike large high security places such as casinos, smaller establishments do not have the same ability to hire staff to monitor security cameras.
  • a method for displaying live video information through the Internet allows customers to view establishments, while additionally providing security and offsite management for the establishment owners.
  • a portal made up of a network of live cameras allows the public to search in a single web site, information about nightlife around the world. The information can be updated directly by the establishments and rated publicly by registered critics.
  • software can be setup on individual computers that allow images to be downloaded to the individual computers' hard drives for quick access to the video images during the down time connection with the Internet.
  • a real world interactive voyeuristic portal By setting up a global network of cameras to show live real-time streaming video through hosting within one site, a real world interactive voyeuristic portal will be created.
  • a network of static continuous cameras will be hosted and maintained through one entity or group of entities for the purpose of representing one or more industries in public commercial venues for information supplied to the general public. This will give viewers a perspective of live changing conditions in various real world industries.
  • FIG 1 is an overall system block diagram of a preferred embodiment of the present invention.
  • FIG. 2 is a block diagram of the camera link from an establishment to the central computers.
  • FIG. 3 is a block diagram of the general user terminal.
  • FIG. 4 is a block diagram of establishment terminal.
  • FIG. 5 is an overall view of a multiple server data collection and disbursement process.
  • FIG. 6 is a block diagram of the central servers.
  • FIG. 7 is a flow diagram of user interaction.
  • FIG. 8 is a flow diagram of establishment data entry and modification.
  • FIG. 1 is an overall system block diagram of a preferred embodiment of the present invention.
  • the central servers 10 are linked to at least one establishment camera 20, one user 40, and one establishment 30.
  • the central servers 10 support a Web portal where information about the establishment 30 and real time video feed from the cameras 20 located at the establishment 30 can be accessed by the user 40.
  • the embodiment of Figure 1 shows only one establishment camera 20, one user 40, and one establishment 30, the invention envisions a number of cameras 20 in various establishments 30 such as bars, nightclubs, restaurants, and any other points of interest in reference to international nightlife.
  • the users 40 would be international in scope, potentially covering anyone with Internet access.
  • the images of cameras 20 are sent to central servers 10.
  • the central servers 10 are programmed to serve several functions.
  • the central servers 10 supports a Web site portal where the images from cameras 20 can be displayed in an organized format offering the user 40 a new perspective view of a common or even unknown scene.
  • the Web site portal would also have many additional features such as chat, bulletin boards, e-mail service, etc.
  • the central servers 10 provide special access to establishments 30 to update information about the establishment and monitor the premises for security and management purposes.
  • the central servers 10 would work in conjunction with software provided to the users 40 which would allow images to be downloaded to users 40 even while the users 40 are not at the Web site portal.
  • the link to the central servers 10 does not need to be a hard-wired link. It can be an Internet link as described in a subsequent description or any other link.
  • Information about the establishment 30 is stored on the central servers 10 and is updated by each individual establishment 30. Information inputted by the establishment can include directions, prices, promotions, etc. As explained in more detail below, the establishment 30 can periodically update the information stored on central server 10 by accessing the Web portal.
  • the establishment cameras 20 are constantly sending updated information to the central servers 10. Thereby, users 40, by navigating to the Web site can access information from establishments 30 and their cameras 20 to gain information about the establishment 30 and its environment. Users 40 also supply information to the central servers 10 about themselves to aid in providing preferred information to the user 40.
  • the Web portal supported by the central server 10 brings the user 40 and the establishment 30 together on the Internet. Therefore, the preferred embodiment of the present invention would be designed around a detailed international guide to restaurants, bars, clubs and other nightlife, offering not only real time views of the establishment 30, but also reviews and other information. In alternative embodiments of the present invention, this will include a chat service offered to web site visitors and a network of web sites designed to represent specific subscribed bars, clubs and restaurants. In addition, additional services such as a paging service, bulletin board, auctions site, etc. would also be available. Moreover, the establishment 30 can also use the camera 20 for security and management purposes. The central server 10 will provide the establishment 30 special access to use the camera 20 for addition al monitoring capabilities as discussed below in more detail.
  • the system depicted in FIG. 1 may be embodied in hardware and software specifically provided to implement the present invention.
  • the links to the system may a be implemented using the existing Internet infrastructure. Many users already have computers and access to the Internet.
  • the central servers 10 can be attached to the Internet to facilitate a link to the users.
  • the establishments 30 may also be directly connected to the servers 10 via the Internet or through any type of existing communication system.
  • FIG. 2 is a block diagram of the preferred camera system which must be located on or near the establishment 30 premises.
  • the camera system includes a camera 20 that captures images of the establishment 30.
  • the CPU 100 performs the processing functions of the server. It also includes a read only memory (ROM) 130 and a random access memory (RAM) 120.
  • the ROM 130 is used to store at least some of the program instructions that are to be executed by the CPU 100 such as portions of the operating system of BIOS and the RAM 120 is used for temporary storage of data.
  • a clock circuit 140 provides a clock signal that is required by the CPU 100.
  • the use of a CPU 100 in conjunction with ROM 130, RAM 120, and clock circuit 140 is well known to those skilled in the art of CPU 100 based electronic circuit design.
  • One camera 20 is depicted in FIG. 2 for an establishment, but it is not limited to any number of cameras 20.
  • the camera 20 may be digital or analog and may be connected to other devices including but not limited to video recorders before it is fed to the digital capture port 110 of the computer. More than one computer may be used with an increasing number of cameras 20. In addition, cameras 20 may also be part of the computer itself, where the camera 20 and the computer are not necessarily separate entities.
  • the establishment computer also includes a communication port 150 which enables the CPU 100 to communicate with devices external to the establishment computer.
  • the communication port 150 facilitates communication between the modem and the CPU 100, so that information arriving from the modem can be processed by the CPU 100 and the CPU 100 can send information to remote locations via the modem.
  • This communication device may connect to the central servers 10 via the aforementioned communications device where the data will then be delivered to users 40 who request it. It may also be stored in a storage device (not depicted) where it can be delivered directly to requesting users 40.
  • the cameras 20 are to be used as public cameras. Some cameras 20 may be private cameras and used for security purposes by the establishment owners or other concerned parties. The data from these particular private cameras will not be accessible to the public. The establishment may also use all of the public and private cameras 20 for managerial purposes. Management for the establishment can regularly monitor the images coming from the cameras in order to assess issues such as overcrowding, periods of time with little activity as well as other managerial issues.
  • FIG. 3 is an embodiment of a preferred user terminal which can be located in a residence, office, or other similar places. Like the camera system described above there can be any number of user terminals accessing the central severs 10. Similar to the camera system described above, the user terminal utilizes a CPU 200, ROM 220, RAM 210, a communications port 250, and a clock circuit 240.
  • the user terminal also includes an input device 205 to receive input from an operator. Any of a variety of input devices 205 would be suitable for this purpose, including, for example, keyboards, mice, touchscreens, and the like.
  • the input device may interface directly with the CPU 200 as shown in figure 2 or an appropriate interface circuit may be placed between the CPU 200 and the input device 205. It should also be noted that these input devices 205 are not limited to hardwired devices. They may be connected via radio, optical or any other type of connection.
  • the user terminal also includes a video monitor 215 for conveying information to the operator. While the most preferred video monitor 215 is a CRT, other video display devices, including LCD, LED, and thin film transistor panels may be used as well, individual indicators may be used as well. Individual indicators may also be used to convey information to the operator including incandescent and neon lamps, LEDs, and the like.
  • a video driver 210 interfaces the CPU 200 to the video monitor 215 (or to any other type of video display device).
  • the user terminal also contains a data storage device 260, which is used to hold software instructions 261, user information 262, and user preferences 263.
  • the instructions 261 are used in conjunction with the CPU 200 to produce instructions based on user requests and actions.
  • the user terminal can access the information directly from the Web site portal or have software installed on the user computer to download information directly to the user's data storage device 260.
  • the software recreates the website and adds more functionality which cannot be done on a website at the present time.
  • a user needs to go to the website or obtain it from a distribution CD.
  • the CD can be distributed through mailings, or the establishments that support our product, or any other means by which CD's are given out.
  • the user GUI graphical user interface
  • the establishment GUI There are two different pieces of software in this implementation, the user GUI (graphical user interface), and the establishment GUI.
  • the user GUI allows the central servers to push data in the background. On average, no data is being transferred nearly 80% of the time a user is online. This time can be put to good use by using a new technology called a soft push.
  • the soft push technology detects when most of the bandwidth is not used and uses the latency to download information directly to the user's data storage device 260.
  • videos are sent to the user GUI which will make it appear that the videos are being streamlined in at a rate of 24 frames/second when in reality the transfer of the videos had been done earlier and the video is instead being played from the user's hard drive. This type of system allows users to view television quality video with any speed connection to the Internet.
  • the software also allows the user to track which establishments he or she has visited and rate each one for future reference, information inputted by each user will be used to track individual user preferences for future suggestions on establishments to visit. General user ratings about each establishment will also be gathered which will enable other users in making decisions about individual establishments.
  • a separate software for establishments is also available to be used with the system shown in Figure 4.
  • the program allows each establishment to view and modify information about their site such as menu items, prices and upcoming events.
  • This GUI also allows the establishment users to manage their establishments more effectively.
  • the establishment GUI will enable the owners to maintain their inventory, keep track of work schedules, put together fliers for their special events and auction equipment to other people who are in the in the industry or planning on entering.
  • This tool will also build a more closely knit community with the use of a bulletin board, which will allow owners within the industry to aid each other.
  • Both of these pieces of software interact with the server to facilitate real-time information updates and viewing. End users also have the ability to view cameras at the establishments through a connection between the central servers and the cameras.
  • FIG. 4 is a preferred embodiment of an establishment terminal which can be located in the establishment 30, in a residence, in an office or any other similar location. Similar to the user terminal, the establishment terminal utilizes, a CPU 300, ROM 330, RAM 320, a clock circuit 340, an input device 305, a video monitor 315, and a communications port 350 which links to the central servers 10.
  • the central servers 10 utilizes, a CPU 300, ROM 330, RAM 320, a clock circuit 340, an input device 305, a video monitor 315, and a communications port 350 which links to the central servers 10.
  • the modem depicted in the figure can be used as described above for the central controller.
  • the establishment terminal allows the establishment to access a standardized database of web sites for the nightlife industry, whereby clubs, bars and restaurants have the opportunity to setup their own web sites online.
  • a form will be offered online which will be linked directly to a database program that will format and display subscriber information on a standardized web site format. This will allow for the information to be as up to date as possible. This will then be linked into a network of real world sites and hosted by the real world portal.
  • the establishment terminal serves as a means for the establishments to send and update information to the central servers 10. An additional option for the establishment is periodically send establishment conditions through the establishment terminal.
  • Establishment terminals may be used for management & security purposes. Information is retrieved directly from the establishment camera system and viewed by establishment management. Management has the ability to view various cameras 20 within a given establishment 30 or at any other establishment 30 where access is permitted.
  • FIG. 5 is a flow diagram of a possible multiple server system used with the present invention.
  • Establishments 30 are to be located in cities around the world, which poses a problem for long distance digital data integrity.
  • secondary servers 10b will be located in various areas to improve connectivity to establishments 30 and users 40 that are geographically further away. The secondary servers 10b would then send all data to the main server 10 and receives new updated data which will be delivered to requesting users 40.
  • the locations of servers are illustrative and not an exact description of the placements of the secondary servers 10b.
  • multiple secondary servers 10b can exist on one continent, or more than one main central server 10 may exist.
  • FIG. 6 is a block diagram of a preferred central server 10. Like the camera system, the central server 10 utilizes a CPU 400, RAM 420, ROM 430, a clock circuit 440, a communications port 450 and a data storage device 460. Again, the communications port 450 may be connected to a modem, hardwired to the Internet, or any of the other previously mentioned options.
  • the CPU 400 can also store information to, and read information from the data storage device 460.
  • This data storage device 460 includes a user database 461, an establishment database 462, and a database 463 of all the data being retrieved from the establishment cameras 20.
  • transaction processor instructions 464 which can be read by and executed by the CPU 400 thereby enabling the CPU 400 to process transactions. It should be noted that while FIG. 6 depicts one CPU 400 and one data storage device
  • FIG. 6 also shows the user database 461, the establishment database 462, and the camera imaging database 463 as separate databases, they may be one coherent database. Several copies of the configuration depicted in FIG. 6 may be used together as a method of mirroring the data.
  • FIG. 7 is a flow chart depicting the initiation of a transaction using a user terminal.
  • the steps of the process shown in FIG. 7 may be implemented in a computer program that may be installed at the user terminal from, for example, a computer readable medium (such as floppy disks of CD-ROMS) which is then stored in a memory, in this case the data storage device.
  • a computer readable medium such as floppy disks of CD-ROMS
  • the user In the case where the user has not registered, the user is required to produce some required information and is then allowed to query the central servers for desired information such as camera images or establishment conditions.
  • FIG. 8 is a flow chart depicting the initiation of a transaction using an establishment terminal. Again, this can be accomplished using a computer program that may be installed from a readable computer medium. A new establishment will be required to enter certain key information (subscription) in order to have accessibility to the site's establishment services.
  • the establishment Upon subscription, the establishment has the opportunity to setup and alter its information such as prices or its description and it also has the ability to input establishment conditions for immediate display. In order for possible customers to have the ability to have the most up-to-date information about the environment of the establishment, the establishments may post their environment conditions in a periodic fashion.
  • subscription includes a camera/security option then the establishment will have the opportunity to view cameras for security and management purposes as described in FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

La présente invention concerne un appareil et un procédé permettant de relier un réseau global de caméras (20) par Internet de manière à voir en direct et en temps réel la vie nocturne internationale, et concerne par ailleurs un système permettant de surveiller et de gérer la sécurité hors place. L'utilisation d'un programme logiciel permettra l'accès rapide aux images vidéo téléchargées par l'ordinateur de l'utilisateur pendant les périodes latentes de la connexion Internet. Ainsi, l'utilisateur pourra voir n'importe quel lieu ou site avec une meilleure perspective de l'endroit et de l'environnement. Par ailleurs, ce procédé concerne la mise au point d'un réseau international de caméras (20), hébergé par un site donné (10b) qui présentera au grand public (40) des séquences en temps réel sur demande.
PCT/US2000/023294 1999-08-27 2000-08-25 Procede et appareil permettant de relier un reseau de cameras en direct Ceased WO2001017246A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38488999A 1999-08-27 1999-08-27
US09/384,889 1999-08-27

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WO2001017246A1 true WO2001017246A1 (fr) 2001-03-08

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WO2004004338A1 (fr) * 2002-06-27 2004-01-08 Koninklijke Philips Electronics N.V. Commande du contenu d'un canal visuel personnalise
GB2428951A (en) * 2005-07-26 2007-02-07 Harry Llewellyn Live video streaming
US7733808B2 (en) 2006-11-10 2010-06-08 Microsoft Corporation Peer-to-peer aided live video sharing system
WO2015074613A1 (fr) * 2013-11-22 2015-05-28 华为技术有限公司 Procédé de commande de caméra vidéo, équipement d'utilisateur et caméra vidéo

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