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    ALERT FAULT DETECTION SYSTEM AND METHOD
    3.
    发明公开
    ALERT FAULT DETECTION SYSTEM AND METHOD 审中-公开

    公开(公告)号：EP3584779A1

    公开(公告)日：2019-12-25

    申请号：EP19179138.3

    申请日：2019-06-07

    Applicant: BlackBerry Limited ,  2236008 Ontario, Inc.

    Inventor： LAYTON, Leonard, Charles ,  LINSEISEN, Frank ,  PERCY, Michael Andrew

    IPC: G08B29/12

    Abstract: A method and system of fault detection for an alert generation system. In the audio alert generation system, a stored digital alert audio file is selected to be processed to generate an analog audio signal to drive a speaker. An alert fault detection system obtaining a signal from the audio alert generation system, converts the obtained signal to a digitally-formatted obtained audio signal, detects a fault in the audio alert generation system by comparing the digitally-formatted obtained audio signal with the stored digital alert audio file, and triggers a fault indicator

    METHODS AND DEVICES FOR PREDICTIVE CODING OF POINT CLOUDS
    5.
    发明公开
    METHODS AND DEVICES FOR PREDICTIVE CODING OF POINT CLOUDS 审中-公开

    公开(公告)号：EP3553747A1

    公开(公告)日：2019-10-16

    申请号：EP18305417.0

    申请日：2018-04-09

    Applicant: BlackBerry Limited ,  2236008 Ontario, Inc.

    Inventor： FLYNN, David ,  LASSERRE, Sébastien

    IPC: G06T9/00 ,  G06T9/40

    Abstract: Methods and devices for encoding a point cloud. A bit sequence signaling an occupancy pattern for sub-volumes of a volume is coded. Predictive coding is used to find a set of predicted points, from which a corresponding predicted occupancy pattern may be determined. The predicted occupancy pattern may be used to determine the contexts for entropy coding the occupancy pattern. The determination may include determining for each sub-volume, whether it contains a predicted point or not and, in some cases, the count of predicted points within the sub-volume. Various threshold numbers of predicted points may cause the selection of different context sets for coding the occupancy pattern. The predictive coding may be enabled by determining that the prediction of occupancy of a parent volume to the volume met a threshold level of accuracy.

    SYSTEM FOR AUTOMATING TUNING HANDS-FREE SYSTEMS
    6.
    发明公开
    SYSTEM FOR AUTOMATING TUNING HANDS-FREE SYSTEMS 审中-公开

    公开(公告)号：EP3537732A1

    公开(公告)日：2019-09-11

    申请号：EP19161577.2

    申请日：2019-03-08

    Applicant: 2236008 Ontario, Inc.

    Inventor： EVERY, Mark Robert ,  HARVEY, Mark William ,  REMPEL, Rodney Dwight ,  PERCY, Michael Andrew

    IPC: H04R29/00 ,  H04S7/00

    Abstract: A system and method automates the tuning of one or more hands-free library parameters. The system and method plays one or more test signals that vary in frequency and in amplitude out of a hands-free system under test or the hands-free tuning system and records the responses of a hands-free tuning system or hands-free tuning system at a microphone of the hands-free tuning system and a microphone of the hands-free system under test. The system and method measures the sound generation and sound pickup characteristics of the hands-free system under test or the hands-free system with respect to the one or more of the test signals and one or more of the microphone signals. The system and method calculates tunable parameters. The system and method updates a hands-free system library with the calculated plurality of tunable parameters.

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