TW338209B - Improved sampling system for radio frequency receiver - Google Patents

Improved sampling system for radio frequency receiver

Info

Publication number
TW338209B
TW338209B TW085112918A TW85112918A TW338209B TW 338209 B TW338209 B TW 338209B TW 085112918 A TW085112918 A TW 085112918A TW 85112918 A TW85112918 A TW 85112918A TW 338209 B TW338209 B TW 338209B
Authority
TW
Taiwan
Prior art keywords
input
radio frequency
converter
output
frequency receiver
Prior art date
Application number
TW085112918A
Other languages
English (en)
Inventor
Robert L Cupo
Original Assignee
Paradyne Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paradyne Corp filed Critical Paradyne Corp
Application granted granted Critical
Publication of TW338209B publication Critical patent/TW338209B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/063—Superheterodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
TW085112918A 1995-10-17 1996-10-22 Improved sampling system for radio frequency receiver TW338209B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/544,244 US5841814A (en) 1995-10-17 1995-10-17 Sampling system for radio frequency receiver

Publications (1)

Publication Number Publication Date
TW338209B true TW338209B (en) 1998-08-11

Family

ID=24171377

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085112918A TW338209B (en) 1995-10-17 1996-10-22 Improved sampling system for radio frequency receiver

Country Status (5)

Country Link
US (1) US5841814A (zh)
EP (1) EP0769873A1 (zh)
JP (1) JPH09200285A (zh)
CA (1) CA2187380A1 (zh)
TW (1) TW338209B (zh)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104442A (en) * 1994-06-28 2000-08-15 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
US6512555B1 (en) * 1994-05-04 2003-01-28 Samsung Electronics Co., Ltd. Radio receiver for vestigal-sideband amplitude-modulation digital television signals
US20040213358A1 (en) * 1994-05-23 2004-10-28 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
GB2311194B (en) * 1996-03-12 2000-05-31 Nokia Mobile Phones Ltd Transmitting and receiving radio signals
JP3517056B2 (ja) * 1996-04-24 2004-04-05 パイオニア株式会社 Ｖｓｂ変調信号におけるサンプリングタイミング位相誤差検出器
KR100200589B1 (ko) * 1996-06-12 1999-06-15 윤종용 고해상도 텔레비젼 수신기의 디지털 복조회로 및 방법
US6333767B1 (en) * 1996-12-26 2001-12-25 Samsung Electronics Co., Ltd. Radio receivers for receiving both VSB and QAM digital television signals with carriers offset by 2.69 MHz
US5966188A (en) 1996-12-26 1999-10-12 Samsung Electronics Co., Ltd. Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers
US6061096A (en) * 1997-03-19 2000-05-09 Samsung Electronics Co., Ltd. Digital-and-analog-TV-signal receivers, each with single first detector and shared high-band I-F amplification
JPH10304262A (ja) * 1997-04-25 1998-11-13 Alps Electric Co Ltd デジタルテレビジョン放送受信機
US6118499A (en) * 1997-05-19 2000-09-12 Mitsubishi Denki Kabushiki Kaisha Digital television signal receiver
US5982820A (en) * 1997-07-10 1999-11-09 Samsung Electronics Co., Ltd. Bandpass phase tracker with hilbert transformation before plural-phase analog-to-digital conversion
JPH1198037A (ja) * 1997-09-22 1999-04-09 Alps Electric Co Ltd デジタルテレビジョン信号受信チュ−ナ
US6356598B1 (en) 1998-08-26 2002-03-12 Thomson Licensing S.A. Demodulator for an HDTV receiver
GB2332578A (en) * 1997-12-17 1999-06-23 Motorola Inc Demodulators for television receivers
SE521035C2 (sv) * 1997-12-29 2003-09-23 Ericsson Telefon Ab L M En mottagare och en metod för mobilradio, där mottagaren anpassas för olika radiokommunikationsnät, t ex GSM, AMPS
US6147713A (en) * 1998-03-09 2000-11-14 General Instrument Corporation Digital signal processor for multistandard television reception
US6313885B1 (en) * 1998-03-25 2001-11-06 Samsung Electronics Co., Ltd. DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements
US6496229B1 (en) * 1998-04-02 2002-12-17 Samsung Electronics Co., Ltd. TV receiver using read-only memory shared during VSB and QAM reception for synchrodyning I-F signal to baseband
PT1072132E (pt) * 1998-04-14 2002-04-29 Fraunhofer Ges Forderung Angew Receptor de modo duplo para receber sinais de satelite e terrestres num sistema de radiodifusao digital
JPH11331300A (ja) * 1998-05-19 1999-11-30 Nec Corp 復調装置
JP2000115263A (ja) * 1998-09-30 2000-04-21 Matsushita Electric Ind Co Ltd ディジタル放送復調装置
US6842495B1 (en) * 1998-11-03 2005-01-11 Broadcom Corporation Dual mode QAM/VSB receiver
AU1607400A (en) 1998-11-03 2000-05-22 Broadcom Corporation Dual mode qam/vsb receiver
US6775334B1 (en) 1998-11-03 2004-08-10 Broadcom Corporation Equalization and decision-directed loops with trellis demodulation in high definition TV
US6396881B1 (en) * 1999-02-19 2002-05-28 Stanley A. White Minimum-delay frequency-shift-compensating complex demodulator with arbitrary phase adjustment
EP1058451B9 (en) * 1999-05-31 2006-10-25 STMicroelectronics S.r.l. Digital AM demodulator, particularly for demodulating TV signals
EP1067675B1 (en) * 1999-07-08 2005-04-27 Sony International (Europe) GmbH Calibration of a N-port receiver
US6995806B1 (en) * 2000-08-04 2006-02-07 Scientific-Atlanta, Inc. Amplifier with a universal automatic gain control circuit
US6839388B2 (en) 2001-01-22 2005-01-04 Koninklijke Philips Electronics N.V. System and method for providing frequency domain synchronization for single carrier signals
US7248628B2 (en) * 2001-03-02 2007-07-24 Shaeffer Derek K Method and apparatus for a programmable filter
US7340230B2 (en) * 2003-04-14 2008-03-04 Silicon Laboratories Inc. Receiver architectures utilizing coarse analog tuning and associated methods
FR2855684B1 (fr) * 2003-05-26 2005-07-01 Commissariat Energie Atomique Recepteur de signal ultra large bande et procede de reception associe.
US7209061B2 (en) * 2005-03-30 2007-04-24 Silicon Laboratories, Inc. Method and system for sampling a signal
US7616707B2 (en) * 2005-07-08 2009-11-10 Research In Motion Limited Methods and apparatus for reducing a sampling rate during a sampling phase determination process
WO2007127948A2 (en) 2006-04-27 2007-11-08 Sirit Technologies Inc. Adjusting parameters associated with leakage signals
US7486215B1 (en) 2006-08-30 2009-02-03 Marvell International Ltd. Apparatus, method, and circuit for baseline loop analog cancellation
US8248212B2 (en) 2007-05-24 2012-08-21 Sirit Inc. Pipelining processes in a RF reader
TWI358911B (en) * 2007-12-24 2012-02-21 Ind Tech Res Inst Receiver with discrete-time down-conversion and fi
US8427316B2 (en) 2008-03-20 2013-04-23 3M Innovative Properties Company Detecting tampered with radio frequency identification tags
US8279566B2 (en) * 2008-04-30 2012-10-02 Freescale Semiconductor, Inc. Multi-voltage electrostatic discharge protection
US8446256B2 (en) 2008-05-19 2013-05-21 Sirit Technologies Inc. Multiplexing radio frequency signals
US8169312B2 (en) 2009-01-09 2012-05-01 Sirit Inc. Determining speeds of radio frequency tags
EP2315365B1 (en) * 2009-03-16 2014-11-26 Huawei Technologies Co., Ltd. Method, communication system and related equipments for data transmission
US8416079B2 (en) 2009-06-02 2013-04-09 3M Innovative Properties Company Switching radio frequency identification (RFID) tags
US10062025B2 (en) 2012-03-09 2018-08-28 Neology, Inc. Switchable RFID tag
US9001932B2 (en) * 2012-12-29 2015-04-07 Motorola Solutions, Inc. Method and apparatus for extracting the quadrature component of a complex signal from the in-phase component after baseband digitizing using a complex transform
CN115021768A (zh) * 2022-05-26 2022-09-06 中国电子科技集团公司第十研究所 基于多相滤波的四路并行抽样方法、装置、设备及介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938126A1 (de) * 1989-11-16 1991-05-23 Philips Patentverwaltung Empfaenger mit direkter quadratur-abtastung des eingangssignals
GB2244410B (en) * 1990-05-25 1994-08-31 Technophone Ltd Quadrature demodulator
JP3241098B2 (ja) * 1992-06-12 2001-12-25 株式会社東芝 多方式対応の受信装置
WO1994005087A1 (en) * 1992-08-25 1994-03-03 Wireless Access, Inc. A direct conversion receiver for multiple protocols
US5375146A (en) * 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
JP3371506B2 (ja) * 1994-02-14 2003-01-27 株式会社日立製作所 受信装置
US5506636A (en) * 1994-06-28 1996-04-09 Samsung Electronics Co., Ltd. HDTV signal receiver with imaginary-sample-presence detector for QAM/VSB mode selection
US5673293A (en) * 1994-09-08 1997-09-30 Hitachi America, Ltd. Method and apparatus for demodulating QAM and VSB signals
US5640698A (en) * 1995-06-06 1997-06-17 Stanford University Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion

Also Published As

Publication number Publication date
JPH09200285A (ja) 1997-07-31
CA2187380A1 (en) 1997-04-18
EP0769873A1 (en) 1997-04-23
US5841814A (en) 1998-11-24

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