-
公开(公告)号：US11619732B2
公开(公告)日：2023-04-04
申请号：US16893898
申请日：2020-06-05
Applicant: Apple Inc.
Inventor： Michael Ney , Zohar Agon
Abstract: The present disclosure is directed to motion detection and recognition using segmented data from reflections of transmitted signals. An apparatus includes a transmitter, a receiver, and a processor. The processor may cause the transmitter to transmit pulses of an RF signal, the reflections of which are received by a receiver. For each of a number of consecutive segments, the transmitter may transmit N pulses of the RF signal, followed by quiet period. The processor may determine amplitude and phase data for reflections received by the receiver. Over a number of consecutive segments, the processor may detect and classify the amplitude and phase data change over time.
-
公开(公告)号：US11307299B2
公开(公告)日：2022-04-19
申请号：US16534106
申请日：2019-08-07
Applicant: Apple Inc.
Inventor： Michael Kerner , Zohar Agon , Michael Ney
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a wireless device to perform sensing applications using communication signals. The first wireless device may determine to perform a sensing application and to perform the sensing application using a communication signal to be transmitted to a second device. In other words, the first wireless device may use a transmission that is scheduled for communication purposes to additionally perform sensing of one or more types. Example sensing or radar-like applications include estimating distance, motion, and/or angle to one or more objects or structures in the vicinity of the first wireless device. After transmitting the communication signal to the second wireless device, the first wireless device may receive a reflection of the communication signal. The first wireless device may use the reflection to perform the sensing application.
-
公开(公告)号：US10277444B2
公开(公告)日：2019-04-30
申请号：US15645215
申请日：2017-07-10
Applicant: Apple Inc.
Inventor： Zohar Agon
Abstract: Embodiments include a method, computer program product, and system for utilizing a system for peak cancellation for a received Orthogonal Frequency Division Multiplexing (OFDM) symbol to reduce the peak-to-average power ratio (PAPR). The system detects M sets of clipping noise samples of the symbol where each set includes one of the M highest clipping noise peaks of the symbol, determines cancellation pulses that correspond to the highest clipping noise peaks of the M sets in the time domain, and subtracts the cancellation pulses from the corresponding highest clipping noise peak samples to reduce the PAPR. The cancellation pulses are determined at least in part from the center-of-mass of each set of the clipping noise samples, the phase of some samples of each set, and the in-band energy limitation associated with the OFDM symbol.
-
Patent Agency Ranking
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
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：US11536823B2
公开(公告)日：2022-12-27
申请号：US16717854
申请日：2019-12-17
Applicant: Apple Inc.
Inventor： Zohar Agon
Abstract: A transceiver circuit included in a computer system may include multiple antennas, a transmitter circuit and a receiver circuit. The transmitter circuit may store an identifier number and generate multiple numbers using the stored identifier number. The transmitter circuit may also generate a transmit signal that include multiple pulses, where a. given pulse may include multiple chirps encoded with the multiple numbers. The receiver circuit may receive a reflected version of the transmit signal and generate an output signal using the reflected version of the transmit signal.
-
公开(公告)号：US11237247B2
公开(公告)日：2022-02-01
申请号：US16893938
申请日：2020-06-05
Applicant: Apple Inc.
Inventor： Michael Kerner , Zohar Agon , Michael Ney
Abstract: A transceiver having quantization noise compensation is disclosed. The transceiver includes transmitter and receiver circuits. The transmitter is configured to receive and quantize a digital signal to generate a quantized signal. The quantized signal is then converted into an analog transmit signal and transmitted as a wireless signal. The receiver circuit is configured to receive a reflected version of the wireless signal and generate an analog receive signal based thereon. The analog receive signal is converted into a digital receive signal. Thereafter, the receiver cancels quantization noise from the digital receive signal to produce a digital output signal that can be utilized for further processing.
-
17.发明授权公开(公告)号：US11056784B1
公开(公告)日：2021-07-06
申请号：US16524229
申请日：2019-07-29
Applicant: Apple Inc.
Inventor： Zohar Agon
Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a wireless device to calibrate a phased antenna array. The wireless device may begin a calibration process with a second wireless device. The first wireless device may receive a calibration signal from the second wireless device and may calibrate a subset (e.g., all but one) of the antennas of the array. The first wireless device may receive a subsequent signal and estimate the angle of arrival using the calibrated subset of antennas. Further, the first wireless device may calibrate a complete set of antennas using calibration signals from a plurality of directions.
-
公开(公告)号：US20160173314A1
公开(公告)日：2016-06-16
申请号：US14570738
申请日：2014-12-15
Applicant: APPLE INC.
Inventor： Zohar Agon
CPC classification number: H04L27/2637 , H04L27/3461 , H04L27/361 , H04L27/366 , H04L27/367
Abstract: Devices and methods for reducing and/or substantially preventing nonlinearities and discontinuities during the translation stage from an I/Q signal into a polar coordinate OFDM signal are provided. By way of example, a method includes receiving an incoming data signal via a processor of a transmitter. The method further includes computing one or more roots of a first function representing a phase component of the data signal, computing a second function representing the phase component, and deriving one or more characteristics of the phase component based on the second function. The method further includes adjusting one of the one or more characteristics in a second domain to establish a substantially finite bandwidth of the phase component.
Abstract translation: 提供了用于在从I / Q信号转换成极坐标OFDM信号的转换阶段期间减少和/或基本上防止非线性和不连续性的装置和方法。 作为示例，一种方法包括经由发射机的处理器接收输入数据信号。 该方法还包括计算表示数据信号的相位分量的第一函数的一个或多个根，计算表示相位分量的第二函数，以及基于第二函数导出相位分量的一个或多个特性。 该方法还包括调整第二域中的一个或多个特性中的一个以建立相位分量的基本上有限的带宽。
-
-
-
-
-
-
-
Search Results
18
records
(took 0.025 seconds)
