公开(公告)号：US12039943B1

公开(公告)日：2024-07-16

申请号：US18381616

申请日：2023-10-18

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Keng-Chih Chen ,  Yu-Chun Huang

IPC: G09G3/34 ,  G06F3/16

CPC classification number: G09G3/3406 ,  G06F3/16 ,  G09G2320/0261

Abstract: A backlight control device for use in an electronic device includes a motion detecting unit, a sound matching unit and a controller. The motion detecting unit is configured to detect motion of a lid section of the electronic device to generate motion data. The sound matching unit is configured to match a soundprint derived from a sound sample that is captured by a sound capture unit, to one or more sound patterns stored within in a sound pattern database to generate a lid state indication signal if the motion data indicates the motion of the lid section corresponds to a predetermined state. The controller is configured to control a backlight module of a display device of the electronic device according to the lid state indication signal.

公开(公告)号：US20240414473A1

公开(公告)日：2024-12-12

申请号：US18208854

申请日：2023-06-12

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Keng-Chih Chen

IPC: H04R1/32 ,  G06T7/73 ,  G06V20/40 ,  G06V40/16 ,  H04R3/00

Abstract: An audio capture method includes: determining one or more regions of interest (ROIs) pertaining to an image sequence or a video stream; determining position information of the one or more ROIs; converting the position information of the one or more ROIs into direction information of the one or more ROIs; and performing a beamforming processing on a plurality of microphone signals to generate an audio capture signal based on direction information of the one or more ROIs and direction information of one or more sound sources that are captured in the plurality of microphone signals.

公开(公告)号：US20240331440A1

公开(公告)日：2024-10-03

申请号：US18190894

申请日：2023-03-27

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Keng-Chih Chen

IPC: G06V40/16 ,  G06V10/25 ,  G10L25/78 ,  H04R1/40 ,  H04R3/00

CPC classification number: G06V40/166 ,  G06V10/25 ,  G10L25/78 ,  H04R1/406 ,  H04R3/005

Abstract: The image detecting apparatus including an image capturing device, a microphone array and a processing circuit is provided. The image capturing device captures an image. The microphone array detects a voice source. The processing circuit performs a voice activity detection on a first number of voice signals captured by the microphone devices to determine whether the voice source is a preset type voice. The processing circuit performs a beamforming operation on a second number of voice signals captured by the microphone devices to generate a region of interest (ROI) setting signal when the voice source is the preset type voice. The ROI setting signal indicates a location of the voice source in the image. The processing circuit performs an image detecting operation on a ROI image. The ROI image is determined according to the image and the ROI setting signal. The first number is smaller than the second number.