公开(公告)号：US12044769B2

公开(公告)日：2024-07-23

申请号：US17364590

申请日：2021-06-30

Applicant: Apple Inc.

Inventor： Avihay Yehezkel ,  Michael Kerner ,  Michael Delishansky ,  Michael Ney ,  Shachar Shayovitz ,  Zohar Agon

IPC: G01S13/34 ,  G01S7/35 ,  G01S13/58

CPC classification number: G01S13/34 ,  G01S7/354 ,  G01S13/584

Abstract: An electronic device may include wireless circuitry with sensing circuitry that transmits radio-frequency sensing signals and receives reflected radio-frequency sensing signals. A mixer may generate a series of beat signals based on the sensing signals and the reflected sensing signals. The sensing circuitry may generate a beat phase based on an average of the series of beat signals, a set of phase values based on the series of beat signals, and a phase velocity based on the set of phase values. The sensing circuitry may resolve a phase ambiguity in the beat phase based on the phase velocity to identify a range between the electronic device and an external object. This way may allow the sensing circuitry to generate accurate ranges even in a low signal-to-noise ratio regime, such as when the external object is moving relative to the electronic device.

公开(公告)号：US20230003867A1

公开(公告)日：2023-01-05

申请号：US17364590

申请日：2021-06-30

Applicant: Apple Inc.

Inventor： Avihay Yehezkel ,  Michael Kerner ,  Michael Delishansky ,  Michael Ney ,  Shachar Shayovitz ,  Zohar Agon

IPC: G01S13/34 ,  G01S13/58 ,  G01S7/35

Abstract: An electronic device may include wireless circuitry with sensing circuitry that transmits radio-frequency sensing signals and receives reflected radio-frequency sensing signals. A mixer may generate a series of beat signals based on the sensing signals and the reflected sensing signals. The sensing circuitry may generate a beat phase based on an average of the series of beat signals, a set of phase values based on the series of beat signals, and a phase velocity based on the set of phase values. The sensing circuitry may resolve a phase ambiguity in the beat phase based on the phase velocity to identify a range between the electronic device and an external object. This way may allow the sensing circuitry to generate accurate ranges even in a low signal-to-noise ratio regime, such as when the external object is moving relative to the electronic device.