公开(公告)号：US20200274403A1

公开(公告)日：2020-08-27

申请号：US16872172

申请日：2020-05-11

Applicant: Apple Inc.

Inventor： Moshe H. Malkin ,  Manu Agarwal ,  Brandon R. Garbus

IPC: H02J50/80 ,  H02J50/12 ,  H04B5/00

Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The data receiver may further include a power supply noise cancellation circuit. The power supply noise cancellation circuit may include an input stage, a baseband filter, a window filter, a down-sampler, and a difference filter. The power supply noise cancellation circuit may be coupled to the data stream combiner and is configured to mitigate power supply noise interference in the received data.

公开(公告)号：US20250104687A1

公开(公告)日：2025-03-27

申请号：US18895319

申请日：2024-09-24

Applicant: Apple Inc.

Inventor： Christopher C. Painter ,  Axit H. Patel ,  Joshua D. Atkins ,  Moshe H. Malkin ,  Nicholas C. Soldner ,  Robert D. Silfvast ,  Zhengrong Shang ,  Timo Birnschein ,  Qinghung Lee

IPC: G10K11/178

Abstract: Embodiments are disclosed for active cancellation of noise in motion sensor signals. In some embodiments, a method comprises: obtaining a motion sensor signal from a motion sensor; obtaining a reference signal indicative of parasitic vibration from a vibration source mechanically coupled to the motion sensor; generating, using an adaptive noise canceller, an estimate of the parasitic vibration; and using the estimated parasitic vibration to cancel the parasitic vibration from the motion sensor signal.

公开(公告)号：US20180351392A1

公开(公告)日：2018-12-06

申请号：US15895761

申请日：2018-02-13

Applicant: Apple Inc.

Inventor： Moshe H. Malkin ,  Manu Agarwal ,  Alin I. Gherghescu

IPC: H02J7/02 ,  H02J50/12 ,  H02J50/80

Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The bandpass filter circuitry may include at least two bandpass filter circuits for passing through signals at the power frequency and some harmonic of the power frequency. The demodulator circuitry may extract amplitude and phase information from the bandpass filtered signals and to generate multiple demodulated data streams. The data stream combiner may correlate the demodulated data streams and combine the correlated data streams.

公开(公告)号：US20190393734A1

公开(公告)日：2019-12-26

申请号：US16198365

申请日：2018-11-21

Applicant: Apple Inc.

Inventor： Bo Zhou ,  Atul A. Salvekar ,  Andrew H. Jones ,  Brian D. Mariner ,  Michael F. Jean ,  Moshe H. Malkin ,  Benjamin M. Oztalay ,  Arash Mehrabi ,  Jose Santos Martinez

IPC: H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H04B5/00

Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data packets to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data packets. The data receiver may be configured to demodulate the received data packets. The data packets may include at least preamble bits, start bits, and data bits encoded as biphase half-bit signals in accordance with a predefined wireless power transfer protocol. During demodulation, the receiver may perform preamble detection, start bit detection, and data bit detection by comparing the input signals to corresponding reference patterns using a maximum likelihood sequence detection scheme. Phase recovery may be employed throughout to help provide immunity to phase change.

公开(公告)号：US20190181697A1

公开(公告)日：2019-06-13

申请号：US16184846

申请日：2018-11-08

Applicant: Apple Inc.

Inventor： Moshe H. Malkin ,  Manu Agarwal ,  Brandon R. Garbus

IPC: H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H04B5/00

Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The data receiver may further include a power supply noise cancellation circuit. The power supply noise cancellation circuit may include an input stage, a baseband filter, a window filter, a down-sampler, and a difference filter. The power supply noise cancellation circuit may be coupled to the data stream combiner and is configured to mitigate power supply noise interference in the received data.

公开(公告)号：US11009949B1

公开(公告)日：2021-05-18

申请号：US16057623

申请日：2018-08-07

Applicant: Apple Inc.

Inventor： John G. Elias ,  Ray L. Chang ,  Moshe H. Malkin ,  Vivek Pant

IPC: G06F3/01 ,  G06F1/16 ,  G06F3/041 ,  G06F3/0488 ,  G06F3/044

Abstract: A wearable electronic device comprises a multi-segment force sensor and a signal aggregator. The sensor comprises at least a first segment and a second segment connected to a flexible substrate material. A first portion of the substrate material (to which the first segment is attached) and a second portion of the substrate material (to which the second segment is attached) collectively wrap at least partially around a portion of an individual's body. The signal aggregator receives respective signals indicative of forces applied by an individual to the segments, and causes a representation of the respective signals to be transmitted to an application processing engine.

公开(公告)号：US10770928B2

公开(公告)日：2020-09-08

申请号：US15895761

申请日：2018-02-13

Applicant: Apple Inc.

Inventor： Moshe H. Malkin ,  Manu Agarwal ,  Alin I. Gherghescu

IPC: H02J50/80 ,  H02J7/02 ,  H02J50/12

Abstract: A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The bandpass filter circuitry may include at least two bandpass filter circuits for passing through signals at the power frequency and some harmonic of the power frequency. The demodulator circuitry may extract amplitude and phase information from the bandpass filtered signals and to generate multiple demodulated data streams. The data stream combiner may correlate the demodulated data streams and combine the correlated data streams.