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公开(公告)号：US20230074849A1
公开(公告)日：2023-03-09
申请号：US17469673
申请日：2021-09-08
Applicant: Apple Inc.
Inventor： David D. Dashevsky , Brian S. Pearson , Dong Zheng , Eugene C. Cheung , Kenneth J. Vampola
IPC: G06K19/077 , G09F3/00 , G06K7/12
Abstract: An electronic device may be attached to an external item. The electronic device may include an optical identification sensor configured to sense a color-encoded tag in the external item when the item is attached to the device. The optical identification sensor may include a board layer, a protective filter layer, wall structures for supporting the protective filter layer on the board layer, a linear array of photodetectors disposed between the board layer and the protective filter layer, a field-of-view restriction filter interposed between the photodetectors and the protective filter layer, and a light source having multiple emitters for illuminating the color-encoded tag. The emitters may be activated sequentially to produce multiple images that are combined to reconstruct an accurate reading of the color-encoded tag, which can then be used to identify the type of external item currently attached to the electronic device.
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公开(公告)号：US20250110580A1
公开(公告)日：2025-04-03
申请号：US18733704
申请日：2024-06-04
Applicant: Apple Inc.
Inventor： Peng Zhao , David D. Dashevsky , Mieczyslaw M. Dabrowski
IPC: G06F3/03
Abstract: An assembly includes a rotatable and translatable input device having an axis of rotation, a circumference about the axis of rotation, and an optical encoder pattern disposed around the circumference. The optical encoder pattern includes a series of polygon facets about the circumference and a one-dimensional substantially retroreflective feature parallel to the axis of rotation. The assembly further includes an optical emitter configured to emit electromagnetic radiation toward the optical encoder pattern, and an optical receiver including a two-dimensional array of pixels. The optical receiver is configured to receive reflections of the emitted electromagnetic radiation from the optical encoder pattern and generate an irradiance pattern in response to the reflections. The optical emitter and the optical receiver are disposed along a sensing axis orthogonal to the axis of rotation.
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公开(公告)号：US12124224B2
公开(公告)日：2024-10-22
申请号：US18143405
申请日：2023-05-04
Applicant: Apple Inc.
Inventor： Prashanth S. Holenarsipur , Mark T. Winkler , Mehmet Mutlu , David D. Dashevsky
Abstract: A watch body includes a housing at least partially defining an interior of the watch body. A retaining feature is formed in or extends from the housing. A watch crown is retained by the retaining feature and is operable to be rotated by a user. The watch crown has a surface facing the housing. The watch crown is entirely external to the interior of the watch body. An electromagnetic radiation source is disposed within the housing and is operable to emit a beam of electromagnetic radiation toward the surface. A sensor is disposed within the housing and is operable to characterize a movement of the watch crown based at least in part on a portion of the beam of electromagnetic radiation that impinges on the surface and is redirected by the surface.
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公开(公告)号：US20240247929A1
公开(公告)日：2024-07-25
申请号：US18505965
申请日：2023-11-09
Applicant: Apple Inc.
Inventor： Ruonan Yang , David D. Dashevsky , Dong Zheng
CPC classification number: G01B11/26 , G06F1/1681
Abstract: An electronic device can include housing with first and second housing portions configured to rotate relative to one another about a hinge, a hinge angle encoder that rotates with the hinge, an emitter that emits light towards the hinge angle encoder, and a sensor die that receives light reflecting back from the hinge angle encoder. The hinge angle encoder may include an absorptive polarizing filter layer and a reflective diffuser layer. A pixelated polarizer may be formed overlapping an array of photodetectors in the sensor die. The electronic device may include processing circuitry configured to compute a hinge angle by which the first and second housing portions are rotated based on one or more intensity values acquired using the array of photodetectors.
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公开(公告)号：US20230273572A1
公开(公告)日：2023-08-31
申请号：US18143405
申请日：2023-05-04
Applicant: Apple Inc.
Inventor： Prashanth S. Holenarsipur , Mark T. Winkler , Mehmet Mutlu , David D. Dashevsky
Abstract: A watch body includes a housing at least partially defining an interior of the watch body. A retaining feature is formed in or extends from the housing. A watch crown is retained by the retaining feature and is operable to be rotated by a user. The watch crown has a surface facing the housing. The watch crown is entirely external to the interior of the watch body. An electromagnetic radiation source is disposed within the housing and is operable to emit a beam of electromagnetic radiation toward the surface. A sensor is disposed within the housing and is operable to characterize a movement of the watch crown based at least in part on a portion of the beam of electromagnetic radiation that impinges on the surface and is redirected by the surface.
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Patent Agency Ranking
公开(公告)号：US20230251114A1
公开(公告)日：2023-08-10
申请号：US17668290
申请日：2022-02-09
Applicant: Apple Inc.
Inventor： David D. Dashevsky , Christopher Gardiner , Tingjun Xu
IPC: G01D13/04
CPC classification number: G01D13/04
Abstract: A method includes imaging, with an optical read head attached to a second mechanical component, a portion of an encoder track disposed on a first mechanical component. The encoder track has a first encoder scale extending along the encoder track and a second encoder scale extending along the encoder track, and the imaged portion of the encoder track includes a first portion of the first encoder scale and a second portion of the second encoder scale. The method further includes transforming an imaged portion of the encoder track to a spatial frequency domain; identifying a pair of frequency bins in the spatial frequency domain; determining a phase difference between a first frequency bin and a second frequency bin in the pair of frequency bins; and mapping the phase difference to a positional relationship between the first mechanical component and the second mechanical component.
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公开(公告)号：US20210405594A1
公开(公告)日：2021-12-30
申请号：US17472386
申请日：2021-09-10
Applicant: Apple Inc.
Inventor： Prashanth S. Holenarsipur , Mark T. Winkler , Mehmet Mutlu , David D. Dashevsky
Abstract: An electronic watch includes a housing, a user-operable watch crown mounted to the housing, an electromagnetic radiation source emitting a beam of electromagnetic radiation toward a watch crown surface, and a sensor. The beam of electromagnetic radiation depends on a coherent mixing of electromagnetic radiation within a resonant cavity of the electromagnetic radiation source. The coherent mixing includes a mixing of a first amount of electromagnetic radiation generated by the electromagnetic radiation source and a second amount of electromagnetic radiation redirected into the resonant cavity by the watch crown surface. The sensor measures a first parameter of the beam of electromagnetic radiation and determines, using the measurement of the first parameter, a value of a second parameter characterizing movement of the watch crown. The second parameter may include a direction of rotation or speed of rotation of the watch crown, or other parameters.
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公开(公告)号：US20250102441A1
公开(公告)日：2025-03-27
申请号：US18754521
申请日：2024-06-26
Applicant: Apple Inc.
Inventor： Fehmi Civitci , David D. Dashevsky , Christopher M. Dodson , Kenneth J. Vampola , Mark T. Winkler , Dawei Lu
Abstract: An electronic device may include a housing and relative humidity sensor in the housing. The relative humidity sensor may include a relative humidity-sensitive layer, a light emitter that emits light into the relative humidity-sensitive layer, and a light detector that detects light that has passed through the relative humidity-sensitive layer. The relative humidity may be determined based on the detected light. For example, the light may be measured interferometrically to determine a path length of the light to determine the relative humidity. Alternatively, the light may be scattered by plasmonic nanoparticles in a relative humidity-sensitive material to determine the relative humidity. As other examples, polarized light may pass through the relative humidity-sensitive layer and measured to determine the relative humidity, or light may be used to form sound waves that may be measured to determine the relative humidity. In this way, a light-based relative humidity-sensor may make relative humidity measurements.
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公开(公告)号：US20240384980A1
公开(公告)日：2024-11-21
申请号：US18664987
申请日：2024-05-15
Applicant: Apple Inc.
Inventor： Tong Chen , Yongkang Gao , Xiao Xiang , David D. Dashevsky
IPC: G01B9/02 , G01B9/02001
Abstract: A multi-channel SMI sensor includes an emitter configured to emit light having different polarizations and a polarization-selective lens for directing light having different polarizations towards different locations. The multi-channel SMI sensor is configured to measure physical phenomena at two different locations with a small footprint.
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公开(公告)号：US12104934B2
公开(公告)日：2024-10-01
申请号：US18141672
申请日：2023-05-01
Applicant: Apple Inc.
Inventor： Xin Li , Damon R. Lemmon , David D. Dashevsky , Dianbo Guo , Peng Zhao , Ruonan Yang
IPC: G01D5/347 , G06F3/03 , G06F3/0362
CPC classification number: G01D5/34715 , G01D5/3473 , G06F3/0312 , G06F3/0362
Abstract: An electronic device is described. The electronic device may include a housing, a rotatable crown, and a self-mixing interferometry (SMI) sensor positioned within the housing. The rotatable crown may include an array of retroreflective surface features that reflect incident light back to a light source. Each retroreflective surface feature of the array of retroreflective surface features may be formed as a corner-cube with three perpendicular faces. The SMI sensor or associated processing electronics may compare originally emitted light with reflected light to identify a movement or distance of the rotatable crown with respect to the SMI sensor.
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