WO2011087370A1 - Method for pairing computer and video conference appliances - Google Patents
Method for pairing computer and video conference appliances Download PDFInfo
- Publication number
- WO2011087370A1 WO2011087370A1 PCT/NO2010/000485 NO2010000485W WO2011087370A1 WO 2011087370 A1 WO2011087370 A1 WO 2011087370A1 NO 2010000485 W NO2010000485 W NO 2010000485W WO 2011087370 A1 WO2011087370 A1 WO 2011087370A1
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- WIPO (PCT)
- Prior art keywords
- computer
- video conference
- audio signal
- appliance
- identification token
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Classifications
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- 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
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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- 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
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
- H04L65/1094—Inter-user-equipment sessions transfer or sharing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1818—Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
-
- 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
- H04L65/1066—Session management
-
- 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
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
-
- 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
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
- H04L65/4053—Arrangements for multi-party communication, e.g. for conferences without floor control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
- H04W4/21—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel for social networking applications
Definitions
- the present invention relates to video conferencing and data col loborat ion , and in particular to pairing personal computers and video conferencing appliances.
- Video conferencing systems are now widely being used as substitutes for personal communication and meetings. Video conferencing endpoints are often fixed installations in meeting rooms, offices and other office premises.
- connection is usually provided by a cable, e.g. an analog screen cable. Problems related to screen settings, interoperability and connectors may then occur. Analog cable connectors are also exposed to wear and tear when frequently being connected an
- Accessing the endpoint' s user interface or transferring calls from the computer to the endpoint is only possible if the devices are aware of each other's network identities, and there is no way for the computer and endpoint to
- Bluetooth is an open wireless protocol for exchanging data, over short distances using short length radio waves from fixed and mobile devices, creating personal area networks (PANs) . It was originally conceived as a wireless
- Bluetooth is limited to PANs, it is not able to operate on LANs or WANs or fetch network addresses.
- Conventional video conference endpoints are usually not Bluetooth enabled, neither are all
- the invention provides a method for pairing a computer with a video conference appliance, the computer being identified with a randomly generated identification token and having at least one loudspeaker connected
- the video conference appliance being identified with a unique identity and having at least one microphone connected thereto, wherein both the computer and the video conference appliance are connected to a communication network
- the method further includes the step of generating an identification token on the computer, modulating the identification token to an audio signal, emitting " the audio signal from the loudspeaker, receiving the audio signal in the microphone, demodulating the audio signal to the identification token in the video conference appliance, sending at least the identification token and the unique identity to the computer, and establishing a communication session through the network from the computer to the video conference appliance enabling control of, and data transfer to, the video conference appliance from the computer .
- Figure 1 is an illustration of a pairing situation between a computer an a video conference appliance according to an example embodiment of the present invention.
- the present invention discloses a method and a computer readable storage medium in a computer for pairing the computer and a video conferencing appliance (endpoint, terminal, client) by emitting encoded and/or modulated sound from the computer' s loudspeaker being captured by microphones of the video conferencing appliances in
- the encoded/modulated sound includes a special signature recognizable for pairing compatible appliances followed by a randomly generated identification token generated by the computer. Assuming that both the computer and the nearby endpoints are connected to the same
- video conference entities will be able to identify, be aware of and access each other.
- the present invention includes a computer software client application, a server and a number of video conferencing appliances.
- the client application is at least able to generate a random identification token by using the underlying operating system's APIs.
- the client application is further adjusted to modulate and/or code the identification token in a sound which is emitted from the computer's loudspeaker.
- the code has a heading with a signature unique for the system or application recognizable for system compatible appliances.
- the client application should also have a User Interface through which a user can interact with the system. For example, when a user carrying his computer enters a meeting room with a video conferencing appliance installed, he should be able to initiate pairing with the endpoint through the User Interface. Alternatively, the application could by default regularly send out modulated/coded sound to exhibit its presence to nearby appliances.
- the application must include a transmission routine being able to encode and/or modulate the identification token to audio which is possible to emit from the computer's load speaker.
- Many modulation techniques could be used, but the well- known Phase Skift Key (PSK) or Frequency Skift key (FSK) could be imaginable.
- PSK Phase Skift Key
- FSK Frequency Skift key
- the audio could or could not be perceivable by the human ear, but the frequencies should preferably lie within the frequency area of conventional video conferencing microphones.
- An appliance compatible with the system will have a
- the software routine installed adjusted to continuously receive signals from a microphone connected to or integrated in the appliance. As the routine recognizes the signature sound, it starts demodulating and/or decoding the following audio using the demodulation and/or decoding technique being set for the system. The routine should also be able to sense the sound level of the audio with the recognizable
- the computer identification token, the sound level and the appliance identification (being e.g. the IP address of the endpoint) will be tried transmitted back to the computer.
- conference appliance does then not have to be aware of which computers are registered in the system. It does not even have to be aware of the computer' s identity, as it can simply transfer the demodulated/decoded data to the entire LAN network, and the computer initiating the pairing will be listening for broadcast messages on the network, and fetching them as they appear. As such messages contain the identification token they are responses for, the software will be able to disregard responses intended for other computers. In the case of a larger LAN, a different
- the computer software could use IETF' s Zeroconf standard to contact a server and register its interest in such messages.
- IETF' s Zeroconf standard could include the identification token about to be modulated/encoded, so the server can send the response only to the computer that emitted the audio signal.
- the software uses the identity to contact the appliance from which the data was sent over the network, typically determines the make and model, and presents the appliance in the User Interface. If the computer receives data from more than one appliance within a limited time period, the application can use the sound level measured by the
- the application establishes a communication session between the computer and the appliance, e.g. through a well-defined protocol run over TCP/IP.
- the appliance can then be
- Control functions such as placing a call, adjusting volume, camera control are obvious features that should be available through the User Interface.
- the computer could also get access to the appliance through an existing video
- conferencing management programs/suits by installing a proxy application on a server.
- the proxy application should able to receive and parse instructions from the client application translate them to instructions compliant with the video conference management program, and act and respond accordingly.
- Video conferencing managing programs typically have access to and are able to control most telecommunication units and network resources within a corporation and an up to date phone book.
- the initial pairing communication as discussed above should then also totally or partly run via the video conference management server.
- an appliance when an appliance receives an audio signal recognizable as a pairing sound, it would always send the perceived sound level and the following identification to the video conferencing management server, and leave it to the server to relay the information to the right computer and manage the following provision of access to the appliance from the computer. This could be a
- the appliance participates.
- the content could e.g. be sent from the computer over the communication session as screen shots appearing at the appliance and in the conference as a presentat ion .
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Abstract
The present invention relates to video conferencing and data collaboration, and in particular to pairing personal computers and video conferencing appliances. The invention discloses a method and a computer readable storage medium in a computer for pairing the computer and a video conferencing appliance (endpoint, terminal, client) by emitting encoded and/or modulated sound from the computer's loudspeaker being captured by microphones of the video conferencing appliances in the proximity. The encoded/modulated sound includes a special signature recognizable for pairing compatible appliances followed by a randomly generated identification token generated by the computer. Assuming that both the computer and the nearby endpoints are connected to the same communication network like a LAN, WLAN or WAN, video conference entities will be able to identify, be aware of and access each other, enabling a user to control and transfer data to the video conference appliance from a User Interface provided by an application installed on the computer.
Description
Method for pairing computer and video conference appliances
Field of the invention
The present invention relates to video conferencing and data col loborat ion , and in particular to pairing personal computers and video conferencing appliances.
Background of the invention
Video conferencing systems are now widely being used as substitutes for personal communication and meetings. Video conferencing endpoints are often fixed installations in meeting rooms, offices and other office premises.
Fixed installations limit mobility of the users. On the other hand, portable personal computers are widely being used and are often accompanying participants in video conference calls.
There is often a need for connecting computers and video conferencing endpoints, e.g. for displaying a presentation, sharing documents, or even accessing the endpoint' s user interface through the computer. The connection is usually provided by a cable, e.g. an analog screen cable. Problems related to screen settings, interoperability and connectors may then occur. Analog cable connectors are also exposed to wear and tear when frequently being connected an
disconnected .
Accessing the endpoint' s user interface or transferring calls from the computer to the endpoint is only possible if the devices are aware of each other's network identities, and there is no way for the computer and endpoint to
identify each other through a standard cable connection.
Bluetooth is an open wireless protocol for exchanging data, over short distances using short length radio waves from fixed and mobile devices, creating personal area networks (PANs) . It was originally conceived as a wireless
alternative to data cables. As Bluetooth is limited to PANs, it is not able to operate on LANs or WANs or fetch network addresses. Conventional video conference endpoints are usually not Bluetooth enabled, neither are all
computers, which may also be difficult to configure
correctly .
Hence, there is a need for a wireless method of connecting a computer to a video conference endpoint.
Summary of the invention
It is an object of the present invention to provide a method and a computer readable storage medium in a computer that overcome the above-described problems.
The features defined in the independent claims enclosed characterize this method and medium.
In particular, the invention provides a method for pairing a computer with a video conference appliance, the computer being identified with a randomly generated identification token and having at least one loudspeaker connected
thereto, the video conference appliance being identified with a unique identity and having at least one microphone connected thereto, wherein both the computer and the video conference appliance are connected to a communication network, wherein the method further includes the step of generating an identification token on the computer, modulating the identification token to an audio signal, emitting "the audio signal from the loudspeaker, receiving the audio signal in the microphone, demodulating the audio
signal to the identification token in the video conference appliance, sending at least the identification token and the unique identity to the computer, and establishing a communication session through the network from the computer to the video conference appliance enabling control of, and data transfer to, the video conference appliance from the computer .
Brief description of the drawings
In order to make the invention more readily understandable, the discussion that follows will refer to the accompanying drawing .
Figure 1 is an illustration of a pairing situation between a computer an a video conference appliance according to an example embodiment of the present invention.
Detailed description of the present invention
In the following, the present invention will be discussed by describing example embodiments. However, people skilled in the art will realize other applications and
modifications within the scope of the invention as defined in the enclosed independent claims.
The present invention discloses a method and a computer readable storage medium in a computer for pairing the computer and a video conferencing appliance (endpoint, terminal, client) by emitting encoded and/or modulated sound from the computer' s loudspeaker being captured by microphones of the video conferencing appliances in
proximity. The encoded/modulated sound includes a special signature recognizable for pairing compatible appliances followed by a randomly generated identification token
generated by the computer. Assuming that both the computer and the nearby endpoints are connected to the same
communication network like a LAN, WLAN or WAN, video conference entities will be able to identify, be aware of and access each other.
According to one example implementation of the present invention includes a computer software client application, a server and a number of video conferencing appliances. The client application is at least able to generate a random identification token by using the underlying operating system's APIs. The client application is further adjusted to modulate and/or code the identification token in a sound which is emitted from the computer's loudspeaker. The code has a heading with a signature unique for the system or application recognizable for system compatible appliances. The client application should also have a User Interface through which a user can interact with the system. For example, when a user carrying his computer enters a meeting room with a video conferencing appliance installed, he should be able to initiate pairing with the endpoint through the User Interface. Alternatively, the application could by default regularly send out modulated/coded sound to exhibit its presence to nearby appliances. The
application must include a transmission routine being able to encode and/or modulate the identification token to audio which is possible to emit from the computer's load speaker. Many modulation techniques could be used, but the well- known Phase Skift Key (PSK) or Frequency Skift key (FSK) could be imaginable. The audio could or could not be perceivable by the human ear, but the frequencies should preferably lie within the frequency area of conventional video conferencing microphones.
An appliance compatible with the system will have a
software routine installed adjusted to continuously receive signals from a microphone connected to or integrated in the appliance. As the routine recognizes the signature sound,
it starts demodulating and/or decoding the following audio using the demodulation and/or decoding technique being set for the system. The routine should also be able to sense the sound level of the audio with the recognizable
signature. Once the computer identification and sound level is provided, the computer identification token, the sound level and the appliance identification (being e.g. the IP address of the endpoint) will be tried transmitted back to the computer.
There are several ways of reaching the computer. If both the video conference appliance and the computers are connected to a relatively small LAN, the data can be broadcasted to all entities in the LAN. The video
conference appliance does then not have to be aware of which computers are registered in the system. It does not even have to be aware of the computer' s identity, as it can simply transfer the demodulated/decoded data to the entire LAN network, and the computer initiating the pairing will be listening for broadcast messages on the network, and fetching them as they appear. As such messages contain the identification token they are responses for, the software will be able to disregard responses intended for other computers. In the case of a larger LAN, a different
solution could be used. In such a case, the computer software could use IETF' s Zeroconf standard to contact a server and register its interest in such messages. Such a request could include the identification token about to be modulated/encoded, so the server can send the response only to the computer that emitted the audio signal.
When the client application installed on the computer receives the data originating from its own pairing call, the software uses the identity to contact the appliance from which the data was sent over the network, typically determines the make and model, and presents the appliance in the User Interface. If the computer receives data from more than one appliance within a limited time period, the
application can use the sound level measured by the
respective appliances to sort them in a list in the User Interface. The user is then invited to select the one appliance with which he/she would like to pair his/her computer.
When the preferred appliance has been selected, the
application establishes a communication session between the computer and the appliance, e.g. through a well-defined protocol run over TCP/IP. The appliance can then be
controlled by the application from the computer e.g. at the same level as a conventional remote control. Control functions such as placing a call, adjusting volume, camera control are obvious features that should be available through the User Interface.
As an alternative to a direct communication session between the computer and the appliance, the computer could also get access to the appliance through an existing video
conferencing management programs/suits by installing a proxy application on a server. The proxy application should able to receive and parse instructions from the client application translate them to instructions compliant with the video conference management program, and act and respond accordingly. Video conferencing managing programs typically have access to and are able to control most telecommunication units and network resources within a corporation and an up to date phone book. The initial pairing communication as discussed above should then also totally or partly run via the video conference management server. In present example, when an appliance receives an audio signal recognizable as a pairing sound, it would always send the perceived sound level and the following identification to the video conferencing management server, and leave it to the server to relay the information to the right computer and manage the following provision of access to the appliance from the computer. This could be a
reasonable implementation because video conference
management programs already have indicated features for managing registered appliances and providing access to controlling them remotely.
Also important in the setting of a personal computer being paired with a video conference appliance is the possibility of displaying presentations, documents and other files and screen contents stored in the computer on the appliance and for other participants in a conference in which the
appliance participates. The content could e.g. be sent from the computer over the communication session as screen shots appearing at the appliance and in the conference as a presentat ion .
Claims
1. A method for pairing a computer with a video
conference appliance for controlling the video conference appliance from the computer, the computer being identified with a randomly generated identification token and having at least one loudspeaker connected thereto, the video conference appliance being identified with a unique
identity and having at least one microphone connected thereto, wherein both the computer and the video conference appliance are connected to a communication network, comprising the steps of:
initiating a pairing call by generating an identification token on the computer,
modulating the identification token to an audio signal, emitting the audio signal from the loudspeaker,
receiving the .audio signal in the microphone,
demodulating the audio signal to the identification token in the video conference appliance,
c h a r a c t e r i z e d i n that the method further comprises the following steps: sending at least the identification token and the unique identity from the video conference appliance to the computer through said communication network, when a client application installed on the computer receives data originating from its own pairing call, then establishing a communication session through the communication network from the computer to the video conference appliance enabling control of, and data transfer to, the video conference appliance from the computer .
2. A method according to claim 1,
c h a r a c t e r i z e d i n adding a predefined signature as a heading of the audio signal in advance of the identification token before emitting the audio signal from the loudspeaker, and recognizing the predefined signature before
demodulating the audio signal.
3. A method according to claim 1 or 2,
c h a r a c t e r i z e d i n measuring the audio level of the audio signal received at the microphone and sending an indication of the audio level from the video conference appliance to the computer together with the identification token and the unique identity.
4. A method according to claim 1 or 2,
c h a r a c t e r i z e d i n
Providing in the computer a User Interface through which a user is allowed to control and transfer data to the video conference appliance through the
communication session.
5. A computer readable storage medium in a computer connected to a communication network, said computer having at least one loudspeaker, said computer readable storage medium is encoded with computer executable instructions, wherein the instructions, when executed by a data
processing apparatus in the computer, cause the data processing apparatus to provide an application,
where the application is adjusted to: initiating a pairing call by generating an identification of the computer by generating a random identification token for the computer,
modulating the identification token to an audio signal, emitting the audio signal from the loudspeaker,
c h a r a c t e r i z e d i n that the application is further adjusted to: receiving at least the identification token and a unique identiy from a video conference appliance connected to the communications network, said video conference appliance having received and demodulated the audio signal to the identification token and sent the identification token and the unique identity to the computer, and when said application receives data originating from its own pairing call, then establishing a
communication session through the communication network from the computer to the video conference appliance enabling control of, and data transfer to, the video conference appliance from the computer.
6. A computer readable storage medium according to
.claim 5,
c h a r a c t e r i z e d i n that the application is further adjusted to add a predefined signature recognizable for the video conferencing appliance as a heading of the audio signal in advance of the identification token before emitting the audio signal from the loudspeaker.
7. A computer readable storage medium according to claim 5 or 6 ,
c h a r a c t e r i z e d i n that the application is further adjusted to provide a User Interface through which a user is allowed to control and transfer data to the video conference appliance by means of the communication session.
8. A computer readable storage medium according to claim 7,
c h a r a c t e r i z e d i n that the application is further adjusted to receive an indication of the audio level of the audio signal received in a microphone of the video conference appliance and to use the indication to put the video conference appliance in a list of video
conference appliances having received the audio signal sorted by received audio level in the User Interface.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080065540.8A CN102804761B (en) | 2010-01-18 | 2010-12-22 | For matching the computer method with video conference device |
EP10843312.9A EP2526693A4 (en) | 2010-01-18 | 2010-12-22 | Method for pairing computer and video conference appliances |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20100079A NO332231B1 (en) | 2010-01-18 | 2010-01-18 | Method of pairing computers and video conferencing devices |
NO20100079 | 2010-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011087370A1 true WO2011087370A1 (en) | 2011-07-21 |
Family
ID=42288909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2010/000485 WO2011087370A1 (en) | 2010-01-18 | 2010-12-22 | Method for pairing computer and video conference appliances |
Country Status (5)
Country | Link |
---|---|
US (2) | US9246956B2 (en) |
EP (1) | EP2526693A4 (en) |
CN (1) | CN102804761B (en) |
NO (1) | NO332231B1 (en) |
WO (1) | WO2011087370A1 (en) |
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US20150120838A1 (en) | 2015-04-30 |
US9246956B2 (en) | 2016-01-26 |
NO20100079A1 (en) | 2011-07-19 |
CN102804761A (en) | 2012-11-28 |
CN102804761B (en) | 2016-08-17 |
US20110179182A1 (en) | 2011-07-21 |
US9621603B2 (en) | 2017-04-11 |
NO332231B1 (en) | 2012-08-06 |
EP2526693A1 (en) | 2012-11-28 |
EP2526693A4 (en) | 2013-10-02 |
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