公开(公告)号：US20220035433A1

公开(公告)日：2022-02-03

申请号：US16947440

申请日：2020-07-31

Applicant: Apple Inc.

Inventor： Itay Franko ,  Derek Iwamoto ,  Mark Ferdinand Damarillo ,  William O. Ferry ,  Yi-Chun Chen

IPC: G06F1/3234 ,  G06F1/3296 ,  G06F1/3209 ,  G06F11/30 ,  H04B3/36

Abstract: Systems, apparatuses, and methods for saving power on a bus interface are described. A system includes a host, a device, and a repeater interposed between the host and the device. While the host and device are in a low-power state, the repeater monitors a first bus to determine if the device has woken up. When the repeater detects a remote wake-up event initiated by the device, the repeater generates an interrupt which is sent to the host. The host responds to the interrupt by initiating a resume wake-up event procedure that assumes the device is still asleep. In this way, the host is able to stay in the low-power state longer while also using a wake-up procedure that does not require the host to be aware of the existence of the repeater.

公开(公告)号：US11703935B2

公开(公告)日：2023-07-18

申请号：US16947440

申请日：2020-07-31

Applicant: Apple Inc.

Inventor： Itay Franko ,  Derek Iwamoto ,  Mark Ferdinand Damarillo ,  William O. Ferry ,  Yi-Chun Chen

IPC: G06F1/3234 ,  G06F1/3296 ,  H04B3/36 ,  G06F11/30 ,  G06F1/3209

CPC classification number: G06F1/3253 ,  G06F1/3209 ,  G06F1/3296 ,  G06F11/3027 ,  G06F11/3062 ,  H04B3/36

Abstract: Systems, apparatuses, and methods for saving power on a bus interface are described. A system includes a host, a device, and a repeater interposed between the host and the device. While the host and device are in a low-power state, the repeater monitors a first bus to determine if the device has woken up. When the repeater detects a remote wake-up event initiated by the device, the repeater generates an interrupt which is sent to the host. The host responds to the interrupt by initiating a resume wake-up event procedure that assumes the device is still asleep. In this way, the host is able to stay in the low-power state longer while also using a wake-up procedure that does not require the host to be aware of the existence of the repeater.

公开(公告)号：US20240028103A1

公开(公告)日：2024-01-25

申请号：US18337189

申请日：2023-06-19

Applicant: Apple Inc.

Inventor： Itay Franko ,  Derek Iwamoto ,  Mark Ferdinand Damarillo ,  William O. Ferry ,  Yi-Chun Chen

IPC: G06F1/3234 ,  G06F1/3296 ,  H04B3/36 ,  G06F11/30 ,  G06F1/3209

CPC classification number: G06F1/3253 ,  G06F1/3296 ,  H04B3/36 ,  G06F11/3062 ,  G06F11/3027 ,  G06F1/3209

Abstract: Systems, apparatuses, and methods for saving power on a bus interface are described. A system includes a host, a device, and a repeater interposed between the host and the device. While the host and device are in a low-power state, the repeater monitors a first bus to determine if the device has woken up. When the repeater detects a remote wake-up event initiated by the device, the repeater generates an interrupt which is sent to the host. The host responds to the interrupt by initiating a resume wake-up event procedure that assumes the device is still asleep. In this way, the host is able to stay in the low-power state longer while also using a wake-up procedure that does not require the host to be aware of the existence of the repeater.