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1. 发明公开

EP4135343A1 ELECTROACOUSTIC TRANSDUCER, SPEAKER MODULE, AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4135343A1
公开(公告)日：2023-02-15
申请号：EP21807785.7
申请日：2021-05-13
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jinhua
IPC分类号： H04R9/02 , H04R9/06
摘要： Embodiments of this application provide an electroacoustic transducer with large vibration amplitude and high sensitivity. The electroacoustic transducer includes a framework, a voice membrane, a voice coil, a flexible circuit board, an auxiliary diaphragm, and a first gasket. An edge of the voice membrane is fastened to a top surface of the framework. The voice coil is located on an inner side of the framework, and one end of the voice coil is fastened to the voice membrane. A first fastening part of the flexible circuit board is fastened to a bottom surface of the framework, and a second fastening part of the flexible circuit board is fastened to the voice coil. The auxiliary diaphragm is located on one side of the flexible circuit board, a first fastening part of the auxiliary diaphragm is fastened to the first fastening part of the flexible circuit board, a vibration part of the auxiliary diaphragm protrudes in a direction away from a connection stub of the flexible circuit board, and a second fastening part of the auxiliary diaphragm is fastened to the second fastening part of the flexible circuit board. The first gasket is located between the first fastening part of the flexible circuit board and the first fastening part of the auxiliary diaphragm. Embodiments of this application further provide an electronic device and a speaker module that includes the foregoing electroacoustic transducer.

2. 发明公开

EP3859981A1 MOBILE TERMINAL 有权
公开(公告)号：EP3859981A1
公开(公告)日：2021-08-04
申请号：EP18940415.5
申请日：2018-11-16
申请人： Huawei Technologies Co., Ltd.
发明人： YU, Zhuojun , LIU, Jinhua , LI, Yingming , ZHANG, Yuqing , YEH, Chien Feng , QIN, Renxuan
IPC分类号： H04B1/38
摘要： Embodiments of this application provide a mobile terminal, and relate to the field of display technologies, to resolve a problem that an architecture space inside the mobile terminal is relatively small. The mobile terminal includes a housing, and a middle frame and a display module that are disposed in the housing. The display module is connected to the middle frame. An accommodation space is formed between the display module and the middle frame. In addition, the mobile terminal further includes a first magnet and a second magnet, and at least a part of the first magnet and at least a part of the second magnet are disposed in the accommodation space. The first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and the first magnet and the second magnet are disposed face to face.

3. 发明授权

EP2869488B1 METHOD AND DEVICE FOR COMPENSATING FOR PACKET LOSS OF VOICE DATA 有权
标题翻译：方法和设备损失的语音数据的补偿方案
公开(公告)号：EP2869488B1
公开(公告)日：2017-01-25
申请号：EP13820450.8
申请日：2013-05-02
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jinhua
IPC分类号： H04L1/00 , G10L19/005 , H04L29/06 , H04L12/939
CPC分类号： H04L49/557 , G10L19/005 , H04L1/0061 , H04L1/208 , H04L65/1083

4. 发明公开

EP2869488A1 METHOD AND DEVICE FOR COMPENSATING FOR PACKET LOSS OF VOICE DATA 有权
标题翻译：用于补偿语音数据的分组丢失的方法和设备
公开(公告)号：EP2869488A1
公开(公告)日：2015-05-06
申请号：EP13820450.8
申请日：2013-05-02
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jinhua
IPC分类号： H04L1/00
CPC分类号： H04L49/557 , G10L19/005 , H04L1/0061 , H04L1/208 , H04L65/1083
摘要： Embodiments of the present invention disclose a method and an apparatus for compensating for a voice packet loss, which are used to compensate for a lost voice packet. The method in the embodiments of the present invention includes: extracting a pitch period from received voice data when a lost frame is detected; calculating a backward phase of a last received frame of normal voice data; calculating a forward phase of the lost frame according to the backward phase; capturing, from the received data, data whose last frame is with a same phase as the forward phase, as compensation data.
摘要翻译：本发明的实施例公开了用于补偿语音分组丢失的方法和设备，其用于补偿丢失的语音分组。本发明实施例的方法包括：当检测到丢失帧时，从接收到的语音数据中提取基音周期; 计算正常语音数据的最后接收帧的反向相位; 根据后向相位计算丢失帧的前向相位; 从接收的数据中捕获其最后一帧与前向相位相同的数据作为补偿数据。

5. 发明公开

EP4187923A1 ELECTROACOUSTIC TRANSDUCER, LOUDSPEAKER MODULE AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4187923A1
公开(公告)日：2023-05-31
申请号：EP21860156.5
申请日：2021-08-12
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jinhua , YAN, Tao , GUO, Li , YEH, Chien Feng , YU, Ligang
IPC分类号： H04R9/02
摘要： This application provides an electroacoustic transducer, a speaker module, and an electronic device, to improve sensitivity of the electroacoustic transducer. The electroacoustic transducer includes a central magnet, two side magnets, a lower electrode plate, a side electrode plate, a frame, a sound diaphragm, a voice coil, and two flexible circuit boards. The central magnet and the two side magnets are respectively disposed on the lower electrode plate. The central magnet includes a first corner part and a second corner part that are diagonally disposed. The two side magnets are disposed centrosymmetrically around the first corner part and the second corner part respectively, and a first gap exists between the side magnet and the central magnet. The side electrode plate is disposed on a surface that is of the two side magnets and that is opposite to the lower electrode plate. One surface of the frame is fixedly connected to a surface that is of the side electrode plate and that is opposite to the lower electrode plate, and the other surface of the frame is fixedly connected to the sound diaphragm. The voice coil is located inside the frame, one end of the voice coil is fixedly connected to the sound diaphragm, and the other end is inserted into the first gap. The two flexible circuit boards are symmetrically distributed on a peripheral side of the voice coil, one end of the flexible circuit board is connected to the voice coil, and the other end is connected to the side electrode plate.

6. 发明公开

EP4132005A1 SPEAKER CORE, SPEAKER, AND ELECTRONIC DEVICE 审中-实审
公开(公告)号：EP4132005A1
公开(公告)日：2023-02-08
申请号：EP21788384.2
申请日：2021-03-23
申请人： Huawei Technologies Co., Ltd.
发明人： YU, Ligang , WU, Guimin , LIU, Jinhua , LIU, Wei , YEH, Chien Feng
IPC分类号： H04R9/06
摘要： Embodiments of this application provide a speaker core, a speaker, and an electronic device. At least one bent part of a diaphragm folded ring is moved above a top of a diaphragm frame and is suspended above the diaphragm frame. In this way, the at least one bent part suspended above the top of the diaphragm frame does not occupy vibration space enclosed by an inner sidewall of the diaphragm frame, and saved space can be used by a diaphragm mass. Therefore, in the speaker core provided in embodiments of this application, when it is ensured that a width of the diaphragm folded ring is not reduced, an area of the diaphragm mass can be increased, and an effective vibration area is increased, to increase a sound pressure level of the speaker in a full frequency band range. In addition, a case in which a nonlinear problem between driving force of the speaker and an amplitude of a diaphragm is aggravated due to an excessively small width of an arc-shaped portion of the diaphragm folded ring is avoided, to ensure that increase of an amplitude of the speaker is not inhibited.

7. 发明公开

EP4040802A1 ELECTROACOUSTIC TRANSDUCER, LOUDSPEAKER MODULE AND ELECTRONIC DEVICE 有权
公开(公告)号：EP4040802A1
公开(公告)日：2022-08-10
申请号：EP20894300.1
申请日：2020-11-10
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Jinhua
IPC分类号： H04R9/02 , H04R9/04 , H04R7/12 , H04R3/00
摘要： Embodiments of this application disclose an electroacoustic transducer, including a center magnet, two first side magnets, two second side magnets, a voice coil, a voice diaphragm, and two flexible printed circuit boards. The two first side magnets are symmetrically arranged on two sides of the center magnet, and a first gap is formed between the first side magnet and the center magnet. The two second side magnets are symmetrically arranged on two sides of the center magnet, and the second side magnet is located on a side, away from the center magnet, of the first side magnet. One end of the voice coil is partially located in the first gap, and the voice diaphragm is fixedly connected to the other end of the voice coil. The two flexible printed circuit boards are symmetrically arranged on two sides of the center magnet. The flexible printed circuit board is located on a side, away from the center magnet, of the first side magnet, and is located between the second side magnet and the voice diaphragm. Tail ends of two stubs of the flexible printed circuit board are fixedly connected to two corners of the voice coil respectively. The electroacoustic transducer has comparatively high magnetic induction strength and comparatively high sensitivity. The embodiments of this application further provide a speaker module and an electronic device.

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