公开(公告)号：US11232664B2

公开(公告)日：2022-01-25

申请号：US17231013

申请日：2021-04-15

Applicant: Axis AB

Inventor： Daniel Andersson ,  Ingemar Larsson

IPC: G07C9/27

Abstract: The present application concerns access control for controlling unlocking of a door (102) at the presentation of credentials (108) at the door. A credentials relay unit (112) and a lock controller (114) are mounted in the vicinity of the door. The credentials relay unit transmits received credentials to a pre-configured, first network address, and in addition transmits a wake-up signal (122) to the lock controller, which upon receipt of the wake-up signal will transmit a request (126) for instructions to a pre-configured, second network address. In response to the request, the lock controller receives unlocking or no-action instructions (128a, 128b), and in case unlocking instructions are received, the lock controller transmits an unlocking signal (132).

公开(公告)号：US20240378842A1

公开(公告)日：2024-11-14

申请号：US18653184

申请日：2024-05-02

Applicant: Axis AB

Inventor： Joakim KRONHAV ,  Martin Kruszynski ,  Daniel Andersson ,  Emma Persson

IPC: G06V10/25 ,  G06T5/20 ,  G06T5/50 ,  G06T5/70 ,  G06V10/44

Abstract: A method of stabilizing bounding boxes for objects in a video stream comprises: receiving a video stream comprising a sequence of image frames; detecting an object in the image frames and generating a bounding box surrounding the object; measuring a noise level for the video stream; and temporally filtering the bounding box over a plurality of image frames based on the measured noise level, thereby stabilizing the bounding box in the video stream. The disclosure further relates to an image processing system.

公开(公告)号：US11064278B2

公开(公告)日：2021-07-13

申请号：US16847664

申请日：2020-04-14

Applicant: Axis AB

Inventor： Daniel Andersson ,  Josef Eid

IPC: G03B29/00 ,  H04R1/02

Abstract: An audio apparatus and a camera including the audio apparatus. The audio apparatus includes an audio transducer electronically connectable to a camera unit, and an audio transducer holder being mechanically connectable to the camera unit and having an audio transducer container being configured to receive the audio transducer and being provided with a spring element allowing the audio transducer to be pushed into the audio transducer container in a first direction and resiliently forcing the audio transducer outward relative to the audio transducer container such that, when the audio apparatus is installed in the camera and the camera is in an assembled state including the removable cover, the audio transducer is forced into abutment against an inside of the removable cover of the camera.

公开(公告)号：US11682384B2

公开(公告)日：2023-06-20

申请号：US17182526

申请日：2021-02-23

Applicant: Axis AB

Inventor： Ingemar Larsson ,  Daniel Andersson

IPC: G10L15/16 ,  G06N3/08 ,  G08B23/00 ,  G10L25/30 ,  G10L25/51

CPC classification number: G10L15/16 ,  G06N3/08 ,  G08B23/00 ,  G10L25/30 ,  G10L25/51

Abstract: A method for training an alarm system to classify audio of an event, wherein the alarm system is connected to a neural network trained to classify audio as an event type, the method comprising the steps of: receiving audio recorded during a first period of time; transmitting the audio to an external unit; receiving data from the external unit indicating a sub-period of time of the audio and data indicating an event type of the indicated sub-period of time of the audio; and re-training the neural network by inputting a sub-period of the audio corresponding to the indicated sub-period of time of the audio and using the indicated event type as a correct classification of the sub-period of the audio.

公开(公告)号：US10685557B2

公开(公告)日：2020-06-16

申请号：US16579873

申请日：2019-09-24

Applicant: Axis AB

Inventor： Ingemar Larsson ,  Anders Hansson ,  Daniel Andersson

IPC: F21V23/00 ,  G08B25/14 ,  G08B25/10 ,  H04W4/90 ,  H04W4/33 ,  H04W4/029

Abstract: The present invention relates to an emergency notification system where indicators are mounted on or in a building in such a way that optical or thermal signals emitted from the indicators form a time-variant indication detectable outside the building of an emergency event taking place inside the building. Sensors detecting a predetermined sound are mounted inside the building and are each connected to a nearby indicator. When a sensor makes a detection, it sends event information to its associated indicator which will prompt the indicator to emit a first optical or thermal signal. Based on a signal from a timer connected to the indicator, a property of the first signal will change after a certain time has passed, thereby providing the time-variant indication.