公开(公告)号：US20240305287A1

公开(公告)日：2024-09-12

申请号：US18664505

申请日：2024-05-15

Applicant: APPLE INC.

Inventor： Charles L. Wang ,  Yi-Hsiu E. Chen ,  Pranavi Sunkara

IPC: H03K9/02 ,  H03K7/02

CPC classification number: H03K9/02 ,  H03K7/02

Abstract: The present disclosure describes embodiments of driver circuit. The driver circuit includes a first impedance element electrically coupled to a first inverter circuit and a second impedance element electrically coupled to the first impedance element and a second inverter circuit. For a first encoding using the driver circuit, the first inverter circuit and the second inverter circuit are controlled such that a first current flows through the first and second impedance elements, the first current having a first value and a first direction. For a second encoding using the driver circuit, the first inverter circuit and the second inverter circuit are controlled such that a second current flows through the first and second impedance elements, the second current having a second value and a second direction. The first value is substantially the same as the second value and the first direction is opposite to the second direction.

公开(公告)号：US12015413B2

公开(公告)日：2024-06-18

申请号：US17945429

申请日：2022-09-15

Applicant: Apple Inc.

Inventor： Charles L. Wang ,  Yi-Hsiu E. Chen ,  Pranavi Sunkara

IPC: H03K9/02 ,  H03K7/02

CPC classification number: H03K9/02 ,  H03K7/02

Abstract: The present disclosure describes embodiments of driver circuit. The driver circuit includes a first impedance element electrically coupled to a first inverter circuit and a second impedance element electrically coupled to the first impedance element and a second inverter circuit. For a first encoding using the driver circuit, the first inverter circuit and the second inverter circuit are controlled such that a first current flows through the first and second impedance elements, the first current having a first value and a first direction. For a second encoding using the driver circuit, the first inverter circuit and the second inverter circuit are controlled such that a second current flows through the first and second impedance elements, the second current having a second value and a second direction. The first value is substantially the same as the second value and the first direction is opposite to the second direction.