CN104662808B - 用于生成nfc发起方发射波形的脉冲整形 - Google Patents

用于生成nfc发起方发射波形的脉冲整形 Download PDF

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Publication number
CN104662808B
CN104662808B CN201380049966.8A CN201380049966A CN104662808B CN 104662808 B CN104662808 B CN 104662808B CN 201380049966 A CN201380049966 A CN 201380049966A CN 104662808 B CN104662808 B CN 104662808B
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CN
China
Prior art keywords
signal
bit
phase
variety
bit mode
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Expired - Fee Related
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CN201380049966.8A
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English (en)
Chinese (zh)
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CN104662808A (zh
Inventor
K·阿哈万
R·格特克
F·萨布里
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Qualcomm Inc
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Qualcomm Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H04L25/03853—Shaping by digital methods other than look up tables or up/down converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/266—One coil at each side, e.g. with primary and secondary coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45—Transponders

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Near-Field Transmission Systems (AREA)
  • Manipulation Of Pulses (AREA)
CN201380049966.8A 2012-09-27 2013-09-24 用于生成nfc发起方发射波形的脉冲整形 Expired - Fee Related CN104662808B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261706581P 2012-09-27 2012-09-27
US61/706,581 2012-09-27
US13/800,065 2013-03-13
US13/800,065 US8902965B2 (en) 2012-09-27 2013-03-13 Pulse shaping for generating NFC initiator transmit waveform
PCT/US2013/061351 WO2014052291A1 (en) 2012-09-27 2013-09-24 Pulse shaping for generating nfc initiator transmit waveform

Publications (2)

Publication Number Publication Date
CN104662808A CN104662808A (zh) 2015-05-27
CN104662808B true CN104662808B (zh) 2017-09-22

Family

ID=50338833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380049966.8A Expired - Fee Related CN104662808B (zh) 2012-09-27 2013-09-24 用于生成nfc发起方发射波形的脉冲整形

Country Status (6)

Country Link
US (1) US8902965B2 (enExample)
EP (1) EP2901565A1 (enExample)
JP (1) JP6388867B2 (enExample)
KR (1) KR20150063436A (enExample)
CN (1) CN104662808B (enExample)
WO (1) WO2014052291A1 (enExample)

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SK288677B6 (sk) 2015-06-02 2019-06-04 Logomotion, S.R.O. Spôsob spracovania signálu vysielaného z NFC analógového budiča a zapojenie na jeho vykonávanie
US9742443B2 (en) * 2015-09-08 2017-08-22 Nxp B.V. Pulse shaping for radio frequency transmitters
CN106027196B (zh) * 2015-09-21 2019-07-30 天地融科技股份有限公司 一种数据传输方法及系统
CN105429614B (zh) * 2015-12-08 2018-08-03 中国航空工业集团公司西安航空计算技术研究所 一种用于提取数字脉冲信号占空比信息的电路
US10721687B2 (en) * 2015-12-17 2020-07-21 Wits Co., Ltd. Information transmitter and an apparatus including the same
KR102603180B1 (ko) * 2017-12-14 2023-11-16 삼성전자주식회사 Nfc 장치의 변조 인덱스 설정 회로, nfc 장치 및 nfc 장치의 동작 방법
FR3078424B1 (fr) 2018-02-27 2021-04-09 St Microelectronics Grenoble 2 Generation d'un signal pwm
FR3078423B1 (fr) * 2018-02-27 2020-09-04 St Microelectronics Grenoble 2 Interface de commande rfid
FR3078451A1 (fr) * 2018-02-27 2019-08-30 Stmicroelectronics (Grenoble 2) Sas Systeme de commande a variation de puissance
FR3078457A1 (fr) 2018-02-27 2019-08-30 Stmicroelectronics (Grenoble 2) Sas Systeme de commande d'un moteur
EP3570423B1 (en) * 2018-05-14 2023-04-19 Nxp B.V. Fast transient load response device for switched-mode power supply
US10211796B1 (en) * 2018-05-24 2019-02-19 Nxp B.V. Common mode voltage ramping in Class-D amplifiers minimizing AM band emissions in passive keyless entry systems
US10353384B1 (en) * 2018-07-03 2019-07-16 Stmicroelectronics, Inc. Audio playback using radio-frequency identification tag
WO2020069131A1 (en) * 2018-09-27 2020-04-02 Intel Corporation Non-linear-phase pulse-shape minimizing spurious emission at power amplifier 2nd harmonic for bpsk single-carrier modulated signal
US10992265B2 (en) 2019-03-29 2021-04-27 Eta Wireless, Inc. Multi-stage pulse shaping network
EP3761581B1 (en) 2019-07-01 2023-05-31 STMicroelectronics (ALPS) SAS Method for controlling a signal envelope shape of modulation pulses in a driver of a wireless transmitter, and corresponding integrated circuit
US11625707B1 (en) * 2020-04-27 2023-04-11 Amazon Technologies, Inc. Mitigating near-field-communication (NFC) antenna interference
CN111682909B (zh) * 2020-06-16 2022-07-12 易兆微电子(杭州)股份有限公司 一种用于nfc读卡器发射调制指数自校准的系统
CN111800168A (zh) * 2020-06-19 2020-10-20 易兆微电子(杭州)股份有限公司 一种用于nfc发射功率过充保护的系统及方法
EP4012935B1 (en) * 2020-12-10 2023-08-02 Panthronics AG Wave-shaping for over- and undershoot prevention
CN115102583B (zh) * 2022-08-25 2022-10-25 北京紫光青藤微系统有限公司 一种nfc通信方法、装置、可读介质及电子设备
WO2025107168A1 (en) * 2023-11-22 2025-05-30 Qualcomm Incorporated Waveforms for backscattered signals

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Also Published As

Publication number Publication date
US8902965B2 (en) 2014-12-02
JP6388867B2 (ja) 2018-09-12
JP2016500216A (ja) 2016-01-07
EP2901565A1 (en) 2015-08-05
KR20150063436A (ko) 2015-06-09
US20140086301A1 (en) 2014-03-27
CN104662808A (zh) 2015-05-27
WO2014052291A1 (en) 2014-04-03

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