公开(公告)号：US20230073376A1

公开(公告)日：2023-03-09

申请号：US17977191

申请日：2022-10-31

Applicant: Apple Inc.

Inventor： Helena Deirdre O'Shea ,  Ali Moaz ,  Tim Schoenauer ,  Rahmi Hezar

IPC: H03K5/1252 ,  G06F21/71

Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

公开(公告)号：US12003244B2

公开(公告)日：2024-06-04

申请号：US17469272

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Helena Deirdre O'Shea ,  Dmitry Cherniavsky ,  Tim Schoenauer ,  Ali Moaz ,  Rahmi Hezar ,  Ram Kanumalli

IPC: H04B1/10 ,  G06F1/08 ,  G06F13/40 ,  H03K5/1252

CPC classification number: H03K5/1252 ,  G06F1/08 ,  G06F13/4027

Abstract: Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.

公开(公告)号：US12278635B2

公开(公告)日：2025-04-15

申请号：US18456364

申请日：2023-08-25

Applicant: Apple Inc.

Inventor： Helena Deidre O'Shea ,  Ali Moaz ,  Tim Schoenauer ,  Rahmi Hezar

IPC: H03K5/1252 ,  G06F21/71

Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

公开(公告)号：US11777479B2

公开(公告)日：2023-10-03

申请号：US17977191

申请日：2022-10-31

Applicant: Apple Inc.

Inventor： Helena Deirdre O'Shea ,  Ali Moaz ,  Tim Schoenauer ,  Rahmi Hezar

IPC: H03K5/1252 ,  G06F21/71

CPC classification number: H03K5/1252 ,  G06F21/71

Abstract: Embodiments relate to identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.

公开(公告)号：US20230072903A1

公开(公告)日：2023-03-09

申请号：US17469272

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Helena Deirdre O'Shea ,  Dmitry Cherniavsky ,  Tim Schoenauer ,  Ali Moaz ,  Rahmi Hezar ,  Ram Kanumalli

IPC: H03K5/1252 ,  G06F13/40 ,  G06F1/08

Abstract: Embodiments relate to updating spur cancellation at a victim integrated circuit (IC) in accordance with dynamic changes in the operating frequencies of an aggressor IC. The aggressor IC changes its operating frequencies at an update time that is determined in advance. The update time and the changes to the operating frequencies are shared with the victim IC. The victim IC dynamically updates the relationships between frequencies of local clock signals for the victim IC and the aggressor IC. The victim IC generates a spur cancellation parameter based on the updated relationships of local clock frequencies, the update time and the changes to the operating frequencies of the aggressor IC, and configures a spur cancellation circuit. In this way, the victim IC may perform effective spur cancellation despite changes in the operating frequencies of the aggressor IC and deviation of the local clock frequencies.

公开(公告)号：US11522531B1

公开(公告)日：2022-12-06

申请号：US17469294

申请日：2021-09-08

Applicant: Apple Inc.

Inventor： Helena Deirdre O'Shea ,  Ali Moaz ,  Tim Schoenauer ,  Rahmi Hezar

IPC: H03K5/1252 ,  G06F21/71

Abstract: Identifying frequencies to be protected at a victim integrated circuit (IC) and sending protection information including the identified frequencies to an aggressor IC. The aggressor IC configures its subsystems or circuits to operate using operating frequencies that prevents spurs that may interfere with the frequencies identified in the protection information. If not all of the frequencies in the protection information can be protected, the aggressor IC selects a subset of the frequencies to be protected. Then, the aggressor IC configures the operating frequencies of its subsystems or circuits so that spurs that they generate do not interfere with the selected frequencies.