公开(公告)号：US20240235607A9

公开(公告)日：2024-07-11

申请号：US18500959

申请日：2023-11-02

申请人： Apple Inc.

发明人： Long Kong ,  Chia-Hsiang Chen ,  Utku Seckin

IPC分类号： H04B1/7163 ,  H04B1/717

CPC分类号： H04B1/71635 ,  H04B1/7172 ,  H04B2201/7163

摘要： A signal transmitter may include a waveform synthesis circuit and a signal transmission circuit. The waveform synthesis circuit may store values of a reference waveform for a selected channel of the signal transmitter, and use the stored values to generate values of reference waveforms for one or more other channels of the signal transmitter. The waveform synthesis circuit may further include a sampling boost circuit to generate one or more additional values for the reference waveforms. The waveform transmission circuit may generate signals for the channels of the signal transmitter based at least in part on the values of the reference waveforms, and transmit the signals via one or more antennas.

公开(公告)号：US20240223237A1

公开(公告)日：2024-07-04

申请号：US18434089

申请日：2024-02-06

申请人： DECAWAVE, LTD.

发明人： Michael McLaughlin

IPC分类号： H04B1/717 ,  H03M13/41 ,  H04B1/38

CPC分类号： H04B1/7174 ,  H03M13/41 ,  H04B1/38

摘要： An ultra-wideband (UWB) communication system comprising a transmitter and a receiver is disclosed. In one embodiment, a symbol mapper circuit in the transmitter is adapted, in a first mode, to develop symbols having the number of pulses as currently defined in the 4z Standard; and, in a second mode, to develop symbols having fewer pulses than as currently defined in the 4z Standard. In an optional third mode, each data bit is mapped to a single pulse.

公开(公告)号：US12016449B2

公开(公告)日：2024-06-25

申请号：US17478262

申请日：2021-09-17

申请人： Apple Inc.

发明人： Ryan C. Perkins ,  Anthony M. Ashcroft ,  Erik G. de Jong ,  Tirshathah A. Hunter ,  Seul Bi Kim ,  Erik L. Wang ,  Christopher M. Werner

IPC分类号： E05B73/00 ,  A45F5/00 ,  A61B5/11 ,  G01S5/00 ,  G01S5/02 ,  G04G21/04 ,  G04G21/08 ,  G06F3/01 ,  G06F3/02 ,  G06F3/044 ,  G06F3/0485 ,  G06F3/04883 ,  G06K7/00 ,  G06K7/10 ,  G06K19/07 ,  G06K19/077 ,  G06T13/40 ,  H01M50/109 ,  H01M50/184 ,  H01Q1/22 ,  H01Q1/27 ,  H01Q5/25 ,  H01Q5/378 ,  H01Q7/00 ,  H01Q9/42 ,  H04B1/3888 ,  H04B5/79 ,  H04L9/08 ,  H04L9/30 ,  H04M1/02 ,  H04M1/21 ,  H04R1/02 ,  H04R3/00 ,  H04R7/02 ,  H04W4/029 ,  H04W12/02 ,  H04W12/03 ,  A63B24/00 ,  H01Q21/06 ,  H04B1/717 ,  H04W88/06

CPC分类号： A45F5/00 ,  A61B5/1116 ,  E05B73/0005 ,  G01S5/0036 ,  G01S5/0226 ,  G04G21/04 ,  G04G21/08 ,  G06F3/017 ,  G06F3/02 ,  G06F3/044 ,  G06F3/0485 ,  G06F3/04883 ,  G06K7/0008 ,  G06K7/10396 ,  G06K19/0701 ,  G06K19/0702 ,  G06K19/0708 ,  G06K19/0723 ,  G06K19/07711 ,  G06K19/07758 ,  G06K19/07766 ,  G06K19/07773 ,  G06K19/07779 ,  G06T13/40 ,  H01M50/109 ,  H01M50/184 ,  H01Q1/2208 ,  H01Q1/2225 ,  H01Q1/2291 ,  H01Q1/273 ,  H01Q5/25 ,  H01Q5/378 ,  H01Q7/00 ,  H01Q9/42 ,  H04B1/3888 ,  H04B5/79 ,  H04L9/0825 ,  H04L9/30 ,  H04M1/02 ,  H04M1/21 ,  H04R1/028 ,  H04R3/00 ,  H04R7/02 ,  H04W4/029 ,  H04W12/02 ,  H04W12/03 ,  A45F2005/006 ,  A45F2200/0508 ,  A63B24/0062 ,  G01S5/0231 ,  G06F3/016 ,  H01Q21/06 ,  H04B1/717 ,  H04R2400/03 ,  H04R2420/07 ,  H04W88/06

摘要： A holder for a wirelessly locatable tag may be used with a wirelessly locatable tag comprising a housing member defining a region of an exterior surface of the wirelessly locatable tag configured to act as a speaker diaphragm. The holder may include a receptacle portion configured to at least partially surround the wirelessly locatable tag, the receptacle portion defining a first opening configured to allow the wirelessly locatable tag to be positioned in the receptacle portion, a second opening configured to at least partially surround an outer periphery of a battery door of the wirelessly locatable tag, and a third opening aligned with the region of the exterior surface configured to act as the speaker diaphragm. The holder may further include a fastener coupled to the receptacle portion and configured to releasably secure the first opening in a closed configuration to retain the wirelessly locatable tag in the receptacle portion.

公开(公告)号：US11967983B2

公开(公告)日：2024-04-23

申请号：US17934513

申请日：2022-09-22

申请人： QUALCOMM Incorporated

发明人： Yi Zeng ,  Cheng-Han Wang ,  Emanuele Lopelli ,  Chan Hong Park ,  Liang Zhao ,  Le Nguyen Luong ,  Koorosh Akhavan

IPC分类号： H04B1/717 ,  H03F3/24

CPC分类号： H04B1/7174 ,  H03F3/245 ,  H03F2200/09 ,  H03F2200/451

摘要： Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.

公开(公告)号：US20230223987A1

公开(公告)日：2023-07-13

申请号：US18050784

申请日：2022-10-28

申请人： Richtek Technology Corporation

发明人： Jung-Sheng Chen ,  Chin-Yen Lin ,  Ching-Yu Chen ,  Ting-Jung Lo ,  Hsing-Shen Huang

IPC分类号： H04B1/717 ,  H02M1/44 ,  H02M1/00

CPC分类号： H04B1/7172 ,  H02M1/0009 ,  H02M1/0025 ,  H02M1/44 ,  H04B1/7174

摘要： A spread spectrum switching converter converts an input power to an output power. The spread spectrum switching converter includes a pulse width modulation (PWM) circuit and a pulse omission control circuit. The PWM circuit generate an initial PWM signal according to a feedback signal related to the output power. The initial PWM signal controls at least one switch to switch an inductor to generate the output power. The pulse omission control circuit generates a pulse omission control signal to mask a portion of pulses of the initial PWM signal, to thereby generate an adjusted PWM signal. The pulse omission control circuit randomly adjusts the pulse width of the pulse omission control signal according to a random control signal, such that the adjusted PWM signal has a spread spectrum characteristic.

公开(公告)号：US11659916B2

公开(公告)日：2023-05-30

申请号：US17478680

申请日：2021-09-17

申请人： Apple Inc.

发明人： Ryan C. Perkins ,  Paul J. Thompson

IPC分类号： A45F5/00 ,  G01S5/02 ,  H04R1/02 ,  H04R7/02 ,  G06K19/07 ,  G06K19/077 ,  H01Q1/22 ,  H04W4/029 ,  A61B5/11 ,  G01S5/00 ,  G06F3/01 ,  G06T13/40 ,  E05B73/00 ,  G06K7/00 ,  G06K7/10 ,  H01M50/109 ,  H01M50/184 ,  H04W12/03 ,  G04G21/04 ,  G04G21/08 ,  G06F3/02 ,  G06F3/044 ,  G06F3/0485 ,  G06F3/04883 ,  H01Q1/27 ,  H04B1/3888 ,  H04B5/00 ,  H04L9/08 ,  H04M1/21 ,  H04R3/00 ,  H04W12/02 ,  H01Q5/25 ,  H01Q5/378 ,  H01Q7/00 ,  H01Q9/42 ,  H04L9/30 ,  A63B24/00 ,  H01Q21/06 ,  H04B1/717 ,  H04W88/06

CPC分类号： A45F5/00 ,  A61B5/1116 ,  E05B73/0005 ,  G01S5/0036 ,  G01S5/0226 ,  G04G21/04 ,  G04G21/08 ,  G06F3/017 ,  G06F3/02 ,  G06F3/044 ,  G06F3/0485 ,  G06F3/04883 ,  G06K7/0008 ,  G06K7/10396 ,  G06K19/0701 ,  G06K19/0702 ,  G06K19/0708 ,  G06K19/0723 ,  G06K19/07711 ,  G06K19/07758 ,  G06K19/07766 ,  G06K19/07773 ,  G06K19/07779 ,  G06T13/40 ,  H01M50/109 ,  H01M50/184 ,  H01Q1/2208 ,  H01Q1/2225 ,  H01Q1/2291 ,  H01Q1/273 ,  H01Q5/25 ,  H01Q5/378 ,  H01Q7/00 ,  H01Q9/42 ,  H04B1/3888 ,  H04B5/0037 ,  H04L9/0825 ,  H04L9/30 ,  H04M1/21 ,  H04R1/028 ,  H04R3/00 ,  H04R7/02 ,  H04W4/029 ,  H04W12/02 ,  H04W12/03 ,  A45F2005/006 ,  A45F2200/0508 ,  A63B24/0062 ,  G01S5/0231 ,  G06F3/016 ,  H01Q21/06 ,  H04B1/717 ,  H04R2400/03 ,  H04R2420/07 ,  H04W88/06

摘要： A mounting base for use with a wirelessly locatable tag may include a base portion defining a latching member configured to engage a wirelessly locatable tag to releasably retain the wirelessly locatable tag to the mounting base, a contact block attached to the base portion and configured to be positioned at least partially within a battery cavity of the wirelessly locatable tag, the contact block defining a top side and a peripheral side. The mounting base may further include a first conductive member positioned along the peripheral side of the contact block and configured to contact a first battery contact in the battery cavity of the wirelessly locatable tag, a second conductive member outwardly biased from the top side of the contact block, the second conductive member configured to contact a second battery contact in the battery cavity of the tag, and a power cable coupled to the base portion.

公开(公告)号：US20220329282A1

公开(公告)日：2022-10-13

申请号：US17843530

申请日：2022-06-17

申请人： TRANSFERT PLUS SOCIETE EN COMMANDITE

发明人： FREDERIC NABKI ,  DOMINIC DESLANDES ,  MOHAMMAD TAHERZADEH-SANI ,  MICHIEL SOER

IPC分类号： H04B1/717 ,  H04L7/00 ,  H04B1/16 ,  H04B1/3827 ,  H04L25/49 ,  H04L27/22 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04B1/7163 ,  H04L25/00 ,  H04B1/7183 ,  H04L7/033 ,  H04L25/03

摘要： Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.

公开(公告)号：US11201638B2

公开(公告)日：2021-12-14

申请号：US16261797

申请日：2019-01-30

申请人： TRANSFERT PLUS SOCIETE EN COMMANDITE

发明人： Frederic Nabki ,  Dominic Deslandes ,  Mohammad Taherzadeh-Sani ,  Michiel Soer

IPC分类号： H04K1/02 ,  H04B1/717 ,  H04L7/00 ,  H04B1/16 ,  H04B1/3827 ,  H04L25/49 ,  H04L27/22 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04B1/7163 ,  H04L25/00 ,  H04B1/7183 ,  H04L7/033 ,  H04L25/03

摘要： Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.

公开(公告)号：US20210344376A1

公开(公告)日：2021-11-04

申请号：US17375456

申请日：2021-07-14

申请人： TRANSFERT PLUS SOCIETE EN COMMANDITE

发明人： FREDERIC NABKI ,  DOMINIC DESLANDES ,  MOHAMMAD TAHERZADEH-SANI ,  MICHIEL SOER

IPC分类号： H04B1/717 ,  H04L7/00 ,  H04B1/16 ,  H04B1/3827 ,  H04L25/49 ,  H04L27/22 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04B1/7163 ,  H04L25/00 ,  H04B1/7183 ,  H04L7/033 ,  H04L25/03

摘要： Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.

公开(公告)号：US10965504B2

公开(公告)日：2021-03-30

申请号：US16307053

申请日：2017-05-16

申请人： B-COM

发明人： Stephane Paquelet ,  Patrick Savelli

IPC分类号： H04L25/49 ,  H04B1/717 ,  H04L27/26 ,  H04B1/69

摘要： A method for generating a pulse-position-modulated signal. The signal includes a temporal succession of waveforms among Ns waveforms obtained by time shift that is an integer multiple of an elementary time duration Tc. The method includes the following steps executed for a k rank symbol among Ns symbols: obtaining, a set of N modulation coefficients cl(k), a modulation coefficient of index n, cn(k), being expressed as the product of a reference modulation coefficient cn(r) coming from the Fourier series decomposition of a reference waveform associated with a symbol of rank r multiplied by a phase shift term the argument of which is proportional to n; and generating M temporal samples of a k-th waveform carrying the symbol of rank k by Fourier transformation of said set of N modulation coefficients cl(k).