公开(公告)号：US20250085179A1

公开(公告)日：2025-03-13

申请号：US18626075

申请日：2024-04-03

Applicant: Apple Inc.

Inventor： Michael J. GLICKMAN ,  Kuolung LEI ,  Gregory B. ARNDT

IPC: G01L9/00 ,  B81B3/00 ,  G01L9/06 ,  G04G21/02

Abstract: Aspects of the subject technology relate to electronic devices with pressure sensors having an integrated fluid cavity. The electronic device includes a housing having an opening. The electronic device also includes a pressure sensor disposed within the housing and adjacent to the opening. The pressure sensor includes a substrate and a sensing membrane disposed on the substrate that is configured to obtain pressure data. The pressure sensor also includes a membrane support disposed on the substrate and an outer membrane disposed on the membrane support. The pressure sensor also includes reference cavity formed between the sensing membrane and the substrate. The pressure sensor also includes a fluid cavity disposed between the sensing membrane and the outer membrane. In some aspects, the outer membrane forms a hermetic seal around the fluid cavity. In other aspects, the outer membrane has a stiffness that is lesser than the sensing membrane.

公开(公告)号：US20240328874A1

公开(公告)日：2024-10-03

申请号：US18545650

申请日：2023-12-19

Applicant: Apple Inc.

Inventor： Matthias IKEDA ,  Gregory B. ARNDT ,  Richard YEH

IPC: G01L1/22

CPC classification number: G01L1/2281

Abstract: An apparatus of the subject technology includes a membrane, a first circuit and a second circuit. The first circuit includes a number of resistive elements disposed on the membrane to measure a pressure difference. The first circuit has a resistance. The second circuit implements a temperature calibration procedure by utilizing the resistance to measure a temperature used in the temperature calibration procedure.

公开(公告)号：US20230061188A1

公开(公告)日：2023-03-02

申请号：US17461866

申请日：2021-08-30

Applicant: Apple Inc.

Inventor： Gregory B. ARNDT ,  Majid Khan ,  Savas Gider

IPC: B81B7/00 ,  H04M1/02 ,  H05B3/28

Abstract: Aspects of the subject technology relate to an apparatus including a housing and a substrate. The apparatus further includes a sensor, an integrated circuit mounted on the substrate, and one or more heating elements configured to adjust a temperature of the sensor to facilitate measurement of temperature sensitivity and calibration of the sensor.

公开(公告)号：US20200064215A1

公开(公告)日：2020-02-27

申请号：US16114070

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Gregory B. ARNDT ,  Jiahui LIANG ,  Ashwin BALASUBRAMANIAN

IPC: G01L9/12 ,  H01L23/34 ,  H01L23/64

Abstract: An apparatus with embedded water detection and heater includes a substrate including a number of conductive traces and a lid including multiple electrodes. Each electrode is coupled to at least one of the conductive traces through vias. A sensor is placed inside a cavity of the lid and is electrically coupled to one or more conductive traces of the substrate. A gel at least partially fills the lid and covers the sensor. The presence of water on the apparatus is detected by measuring a dielectric permittivity between at least two of the plurality of electrodes, and the electrodes can generate heat to eliminate the water.

公开(公告)号：US20190086284A1

公开(公告)日：2019-03-21

申请号：US16012700

申请日：2018-06-19

Applicant: Apple Inc.

Inventor： David MACNEIL ,  Gregory B. ARNDT ,  Roberto M. RIBEIRO ,  William E. MICKELSON ,  Richard YEH

IPC: G01L27/00 ,  G01K1/20 ,  G01L9/02 ,  G01L19/04

Abstract: Aspects of the subject technology relate to electronic devices with pressure sensors. A pressure sensor in a portable electronic device may include an integrated heater or may be co-operated with an external heater for the pressure sensor. The heater may be operated to heat some or all of the pressure sensor for pressure sensor testing, calibration, or temperature-controlled pressure sensing operations.

公开(公告)号：US20250085181A1

公开(公告)日：2025-03-13

申请号：US18465892

申请日：2023-09-12

Applicant: Apple Inc.

Inventor： Michael J. GLICKMAN ,  Gregory B. ARNDT

IPC: G01L19/06 ,  G01L27/00

Abstract: Aspects of the subject technology relate to electronic devices with pressure sensors. Pressure sensor occlusion may be mitigated by ejecting occluding liquid with pulsed liquid heating. Processing circuit of the electronic device can obtain pressure sensor data from the pressure sensor and determine that the opening is occluded based at least in part on a change in pressure within a cavity adjacent the opening. The processing circuitry applies a first power pulse to a heating element during a first phase to cause the heating element to form a gas pocket around the heating element by heating at least a portion of a water volume inside the cavity and applies a second power pulse to the heating element during a second phase following the first phase to cause the heating element to expand the gas pocket around the heating element by further heating the water volume inside the cavity.

公开(公告)号：US20240314479A1

公开(公告)日：2024-09-19

申请号：US18420675

申请日：2024-01-23

Applicant: Apple Inc.

Inventor： Gregory B. ARNDT ,  Mark J. BEESLEY ,  Quan QI

IPC: H04R1/08

CPC classification number: H04R1/083 ,  H04R2499/11

Abstract: An apparatus of the subject technology includes a substrate, including a hole, and a vent structure embedded within the substrate to allow air flow through the hole. The substrate is a multi-layer substrate, and the vent structure includes an air-permeable membrane to prevent liquid penetration.