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：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.

公开(公告)号：US20200083779A1

公开(公告)日：2020-03-12

申请号：US16616020

申请日：2017-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Huang ,  Tieli Zhang ,  Zhi Chang ,  Xuan Li ,  Jianli Chen

IPC: H02K7/06 ,  B06B1/04 ,  H02P7/28

Abstract: An electronic device includes a signal trigger circuit, a flat-motor drive circuit, and a flat motor. The signal trigger circuit sends a starting instruction to the flat-motor drive circuit for instructing to start the flat motor. A processor of the flat-motor drive circuit sends a first triggering instruction to a voltage processing circuit of the flat-motor drive circuit after receiving the starting instruction. The voltage processing circuit provides a first working voltage V1 to the flat motor after receiving the first triggering instruction, and provides a second working voltage V0 to the flat motor after a first time period. Where, V0