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IMPROVING IN-ROOM MEETING EXPERIENCE WHILE ON CELLULAR CALLS

IP.com Disclosure Number: IPCOM000249732D
Publication Date: 2017-Mar-29
Document File: 8 page(s) / 712K

Publishing Venue

The IP.com Prior Art Database

Related People

Finbarr Brady: AUTHOR [+3]

Abstract

When a mobile device is on a cellular call, the microphone is locked by the native mobile dialer such that a collaboration application (running on the phone) cannot detect ultrasound emitted by a video conference room system. Techniques presented herein provide an improved in-room meeting experience while on cellular calls in a number of ways. First, detection/decoding of any encoded audio is moved away from the mobile device or collaboration application. Instead, a cloud-controlled media bridge is inserted into the media path of the cellular call to perform the detection/decoding as required. Second, because ultrasound emitted by video conference equipment is filtered out by any mobile audio codecs and therefore is not detectable in the cellular call media, an audible jingle encoded with information about the video conference room is used. Third, to avoid unnecessary media processing, other, less accurate location information (e.g., Bluetooth™ low energy (BLE) beacon detection and/or Wi-Fi® triangulation) serves as a trigger for audio detection in cellular calls.

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Copyright 2017 Cisco Systems, Inc. 1

IMPROVING IN-ROOM MEETING EXPERIENCE WHILE ON CELLULAR CALLS

AUTHORS: Finbarr Brady Shane Hannon Liam Frawley

CISCO SYSTEMS, INC.

ABSTRACT

When a mobile device is on a cellular call, the microphone is locked by the native

mobile dialer such that a collaboration application (running on the phone) cannot detect

ultrasound emitted by a video conference room system. Techniques presented herein

provide an improved in-room meeting experience while on cellular calls in a number of

ways.

First, detection/decoding of any encoded audio is moved away from the mobile

device or collaboration application. Instead, a cloud-controlled media bridge is inserted

into the media path of the cellular call to perform the detection/decoding as required.

Second, because ultrasound emitted by video conference equipment is filtered out

by any mobile audio codecs and therefore is not detectable in the cellular call media, an

audible jingle encoded with information about the video conference room is used. Third,

to avoid unnecessary media processing, other, less accurate location information (e.g.,

Bluetooth™ low energy (BLE) beacon detection and/or Wi-Fi® triangulation) serves as a

trigger for audio detection in cellular calls.

DETAILED DESCRIPTION

Currently, devices may detect whether they are co-located with a video conference

room system via an ultrasound broadcast by the video conference equipment. However, if

the mobile device is participating in a cellular telephone call, it is not possible for

collaboration applications running on the mobile device to control the microphone on the

device. This makes it impossible to detect ultrasound transmissions from the video

conference equipment. Alternative solutions (e.g., iBeaconsTM, Wi-Fi triangulation, etc.)

are less accurate, which can lead to a poor user experience.

Copyright 2017 Cisco Systems, Inc. 2

When a mobile device is on a cellular call the microphone is locked by the native

mobile dialer such that a collaboration application running on the mobile device cannot

detect ultrasound emitted by the video conference equipment. Techniques presented herein

address this problem in a number of ways. First, detection/decoding of any encoded audio

is moved away from the mobile device or collaboration application. Instead, a cloud-

controlled media bridge is inserted into the media path of the cellular call to perform the

detection/decoding as required. Second, because ultrasound emitted by video conference

equipment is filtered out by any mobile audio codecs and therefore is not detectable in the

cellular call media, an audible jingle encoded with information about the video conference

room is used. Third, to avoid unnecessary media processing, other, less accurate location

information (e.g., Bluetooth™ low energy (BLE) beacon detection) serves as a trigger for

audio detection in cellular calls.

An example scenario is provided to illustrate the techniques in more detail. In this

example...