公开(公告)号：US11831171B2

公开(公告)日：2023-11-28

申请号：US17838794

申请日：2022-06-13

Applicant: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Tomas Teply

IPC: H01M10/44 ,  H01M10/46 ,  H02J50/12 ,  H02J7/02 ,  H02J50/70 ,  H02J50/80 ,  H02J50/00 ,  H01F38/14 ,  H01F27/36 ,  H02J50/40 ,  H04R1/10 ,  H01F27/28

CPC classification number: H02J50/12 ,  H01F27/2885 ,  H01F27/36 ,  H01F38/14 ,  H02J7/02 ,  H02J50/005 ,  H02J50/40 ,  H02J50/70 ,  H02J50/80 ,  H04R1/1016 ,  H04R1/1025 ,  H04R1/1041 ,  H04R1/1058 ,  H04R2420/07

Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.

公开(公告)号：US20220069626A1

公开(公告)日：2022-03-03

申请号：US17008238

申请日：2020-08-31

Applicant: STMicroelectronics Design and Application S.R.O.

Inventor： Tomas Teply

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/70 ,  H02J50/80 ,  H02J50/00 ,  H01F38/14 ,  H01F27/28 ,  H01F27/36 ,  H02J50/40 ,  H04R1/10

Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.

公开(公告)号：US20220302763A1

公开(公告)日：2022-09-22

申请号：US17838794

申请日：2022-06-13

Applicant: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Tomas Teply

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/70 ,  H02J50/80 ,  H02J50/00 ,  H01F38/14 ,  H01F27/36 ,  H02J50/40 ,  H04R1/10 ,  H01F27/28

Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.

公开(公告)号：US11979704B2

公开(公告)日：2024-05-07

申请号：US17537263

申请日：2021-11-29

Applicant: STMICROELECTRONICS DESIGN AND APPLICATION S.R.O.

Inventor： Tomas Teply ,  Karel Blaha

IPC: H04R1/10 ,  H04R9/04 ,  H04R9/06

CPC classification number: H04R1/1025 ,  H04R1/1075 ,  H04R9/04 ,  H04R9/06 ,  H04R2420/07

Abstract: The present disclosure is directed to a device that includes a headphone speaker housing that includes a coil having a first terminal and a second terminal that is configured to operate in a sound generation mode and a battery charging mode. A class D amplifier circuit is configured to rectify in a battery charging mode and amplify in a sound generation mode, the class D amplifier is coupled to the first terminal and the second terminal of the coil. The class D amplifier including a first, second, third, and fourth switch, the first terminal coupled between the first and second switch, the second terminal coupled between the third and fourth switch. An audio generation circuit having a third terminal and a fourth terminal, the third terminal coupled between the first and third switch of the class D amplifier and the fourth terminal coupled between the second and fourth switch of the class D amplifier. A battery charging circuit coupled to the third terminal and the fourth terminal.

公开(公告)号：US11387679B2

公开(公告)日：2022-07-12

申请号：US17008238

申请日：2020-08-31

Applicant: STMicroelectronics Design and Application S.R.O.

Inventor： Tomas Teply

IPC: H01M10/44 ,  H01M10/46 ,  H02J50/12 ,  H02J7/02 ,  H02J50/70 ,  H02J50/80 ,  H02J50/00 ,  H01F38/14 ,  H01F27/36 ,  H02J50/40 ,  H04R1/10 ,  H01F27/28

Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.