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公开(公告)号：US20220271782A1
公开(公告)日：2022-08-25
申请号：US16644750
申请日：2017-09-28
Applicant: Apple Inc.
Inventor： David Arditti Ilitzky , Harry Skinner , Fernando Ramos Alarcon Barroso , Valeri Kontorovich Mazover , Rocio Hernandez Fabian
IPC: H04B1/00 , H04B17/21 , H04B17/373 , H04B1/04
Abstract: A signal processing device includes a prediction and correction engine configured to receive a signal including a target signal, and to execute a single-moment filter, based on a current measurement sample of the signal and a model of the target signal, to obtain a single-moment state estimate and a single-moment state estimate error covariance for the target signal, a covariance renormalizer configured to determine a multi-moment state estimate error covariance for the target signal based on a prior single-moment state estimate error covariance, corresponding to a sample prior to the current measurement sample, and the single-moment state estimate error covariance, and a multi-moment prediction and correction engine configured to execute a multi-moment filtering extension based on the current measurement sample and the multi-moment state estimate error covariance to obtain a multi-moment state estimate, and further configured to determine an estimate for the target signal based on the multi-moment state estimate.
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公开(公告)号：US20240080050A1
公开(公告)日：2024-03-07
申请号：US18504870
申请日：2023-11-08
Applicant: Apple Inc.
Inventor： David Arditti Ilitzky , Harry Skinner , Fernando Ramos Alarcon Barroso , Valeri Kontorovich Mazover , Rocio Hernandez Fabian
IPC: H04B1/00 , H04B1/04 , H04B17/21 , H04B17/373
CPC classification number: H04B1/0096 , H04B1/04 , H04B17/21 , H04B17/373 , H04B2001/0425
Abstract: Effective radio frequency interference (RFI) mitigation techniques are disclosed for use in wireless communication devices, among others. An RFI mitigation circuit may include a selector circuit to select between a cleaned signal and a clipped signal, and provide the selected signal as an output signal. The RFI mitigation circuit may also include a classifier circuit to generate a control input indication to the selector circuit to have the cleaned signal selected as the output signal based at least on a front-end circuit signal indicating that the front-end circuit is operating linearly and also indicating that the front-end circuit signal includes an interference signal. The classifier circuit may also generate the control input indication to have the clipped signal selected as the output signal based at least on the front-end circuit signal indicating that the front-end circuit is not operating linearly.
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公开(公告)号：US11848692B2
公开(公告)日：2023-12-19
申请号：US16644750
申请日：2017-09-28
Applicant: Apple Inc.
Inventor： David Arditti Ilitzky , Harry Skinner , Fernando Ramos Alarcon Barroso , Valeri Kontorovich Mazover , Rocio Hernandez Fabian
IPC: H04B1/00 , H04B17/21 , H04B17/373 , H04B1/04
CPC classification number: H04B1/0096 , H04B1/04 , H04B17/21 , H04B17/373 , H04B2001/0425
Abstract: A signal processing device includes a prediction and correction engine configured to receive a signal including a target signal, and to execute a single-moment filter, based on a current measurement sample of the signal and a model of the target signal, to obtain a single-moment state estimate and a single-moment state estimate error covariance for the target signal, a covariance renormalizer configured to determine a multi-moment state estimate error covariance for the target signal based on a prior single-moment state estimate error covariance, corresponding to a sample prior to the current measurement sample, and the single-moment state estimate error covariance, and a multi-moment prediction and correction engine configured to execute a multi-moment filtering extension based on the current measurement sample and the multi-moment state estimate error covariance to obtain a multi-moment state estimate, and further configured to determine an estimate for the target signal based on the multi-moment state estimate.
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公开(公告)号：US11283426B2
公开(公告)日：2022-03-22
申请号：US16956960
申请日：2017-12-29
Applicant: Apple Inc.
Inventor： Igal Kushnir , Harry Skinner , Bernhard Raaf , Sharon Malevsky , Gil Horovitz
Abstract: An electrical device (100) that comprises at least one signal filter (104) comprising a plurality of mechanical resonators (106 108, 110) in a substrate (102) and at least one further mechanical resonator (112) in the substrate (102) configured to oscillate at a reference frequency of an oscillator signal. An electrical system (300) comprising an electrical oscillator (306) a transceiver (302) and an antenna (310), and an electrical device (100). A method (1300) for providing an electrical device (100).
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