公开(公告)号：US11455265B2

公开(公告)日：2022-09-27

申请号：US17187427

申请日：2021-02-26

Applicant: Apple Inc.

Inventor： Roderick B. Hogan ,  Nathan A. Johanningsmeier ,  James B. Reedy

IPC: G06F13/37 ,  G06F13/372 ,  G06F1/20 ,  H04R3/00

Abstract: A group of transistors is configured to drive a bus at time slots, to express data on the bus. The group of transistors dissipates an amount of electrical energy when driving the bus to a logic level opposite to a logic level present on the bus in an immediate preceding time slot. The group of transistors is arranged to dump another amount of electrical energy. Dumping of the other amount of electrical energy is responsive to driving the bus to a logic level that is the same as present on the bus in an immediate preceding time slot. The dumped amount of electrical energy is equivalent to the amount of energy dissipated by the transistors when transitioning the bus to a different logic level. Other aspects are also described.

公开(公告)号：US20210182226A1

公开(公告)日：2021-06-17

申请号：US17187427

申请日：2021-02-26

Applicant: Apple Inc.

Inventor： Roderick B. Hogan ,  Nathan A. Johanningsmeier ,  James B. Reedy

IPC: G06F13/372 ,  G06F1/20 ,  H04R3/00

Abstract: A group of transistors is configured to drive a bus at time slots, to express data on the bus. The group of transistors dissipates an amount of electrical energy when driving the bus to a logic level opposite to a logic level present on the bus in an immediate preceding time slot. The group of transistors is arranged to dump another amount of electrical energy. Dumping of the other amount of electrical energy is responsive to driving the bus to a logic level that is the same as present on the bus in an immediate preceding time slot. The dumped amount of electrical energy is equivalent to the amount of energy dissipated by the transistors when transitioning the bus to a different logic level. Other aspects are also described.

公开(公告)号：US10963410B2

公开(公告)日：2021-03-30

申请号：US15974635

申请日：2018-05-08

Applicant: Apple Inc.

Inventor： Roderick B. Hogan ,  Nathan A. Johanningsmeier ,  James B. Reedy

IPC: G06F13/37 ,  G06F13/372 ,  G06F1/20 ,  H04R3/00

Abstract: A group of transistors is configured to drive a bus at time slots, to express data on the bus. The group of transistors dissipates an amount of electrical energy when driving the bus to a logic level opposite to a logic level present on the bus in an immediate preceding time slot. The group of transistors is arranged to dump another amount of electrical energy. Dumping of the other amount of electrical energy is responsive to driving the bus to a logic level that is the same as present on the bus in an immediate preceding time slot. The dumped amount of electrical energy is equivalent to the amount of energy dissipated by the transistors when transitioning the bus to a different logic level. Other aspects are also described.