公开(公告)号：US12279099B2

公开(公告)日：2025-04-15

申请号：US18042942

申请日：2021-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Huang ,  Chen Zhu

IPC: H04R5/04 ,  G06F3/16 ,  H03M1/66 ,  H04M1/60 ,  H04R5/033 ,  H04S1/00

Abstract: An audio service module is communicatively connected to an audio abstraction module. The audio abstraction module is communicatively connected to a codec driver. The codec driver is communicatively connected to a codec chip. The audio service module receives a headset insertion/removal message and sends the message to the audio abstraction module. The audio abstraction module determines a digital-to-analog converter DAC channel configuration policy in the codec chip based on the headset insertion/removal message, and sends the DAC channel configuration policy to the codec driver. A DAC channel is used to transmit earpiece or headset data, and transmit motor data to a class-D amplifier to drive the motor. The codec driver controls the codec chip to reconfigure the DAC channel based on the DAC channel configuration policy.

公开(公告)号：US20250157239A1

公开(公告)日：2025-05-15

申请号：US19019863

申请日：2025-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huanbang Chen ,  Chen Zhu ,  Yin Zhao ,  Li Song

IPC: G06V30/148 ,  G06V10/26 ,  G06V10/764 ,  G06V30/146 ,  G06V30/19 ,  G06V30/28

Abstract: In a word-including picture encoding method, a word area in a first picture is obtained, where a word area includes at least one character. The word area is filled to obtain a word-filled area, where a height or a width of the word-filled area is n times a preset size, and where n≥1. A second picture is obtained based on the word-filled area and the second picture and word alignment side information including the height or width of the word-filled area is encoded to obtain a first bitstream.

公开(公告)号：US12224749B2

公开(公告)日：2025-02-11

申请号：US18043215

申请日：2021-07-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Huang ,  Chen Zhu ,  Yingqun Feng

IPC: H03K19/0185 ,  H02J7/00 ,  H03K19/003 ,  H04R3/00

Abstract: This disclosure provides example interface circuits, interface circuit protection methods, and terminal devices. An example interface circuit includes a switching unit, a power input end, a first function pin, a second function pin, a control signal input end, a detection port, a grounding output end, a first resistor, a second resistor, a third resistor, a fourth resistor, and an on-off apparatus. The switching unit includes a wire grounding GND end, a circuit power supply Vcc end, a first switch circuit, and a second switch circuit. The on-off apparatus includes an input pin, a first on-off pin, and a second on-off pin. The switching unit is configured to switch, in response to a control signal that is input through the control signal input end, functions corresponding to the first function pin and the second function pin.