IT1237900B - Sistema telemetrico con stazione trasmittente usante un filtro ripetitivo per limitare larghezza di banda - Google Patents

Sistema telemetrico con stazione trasmittente usante un filtro ripetitivo per limitare larghezza di banda

Info

Publication number
IT1237900B
IT1237900B IT02268989A IT2268989A IT1237900B IT 1237900 B IT1237900 B IT 1237900B IT 02268989 A IT02268989 A IT 02268989A IT 2268989 A IT2268989 A IT 2268989A IT 1237900 B IT1237900 B IT 1237900B
Authority
IT
Italy
Prior art keywords
bandwidth
limit
transmitter station
telemetric system
repetitive
Prior art date
Application number
IT02268989A
Other languages
English (en)
Other versions
IT8922689A0 (it
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8922689A0 publication Critical patent/IT8922689A0/it
Application granted granted Critical
Publication of IT1237900B publication Critical patent/IT1237900B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
IT02268989A 1989-03-02 1989-12-14 Sistema telemetrico con stazione trasmittente usante un filtro ripetitivo per limitare larghezza di banda IT1237900B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/318,097 US4896152A (en) 1989-03-02 1989-03-02 Telemetry system with a sending station using recursive filter for bandwidth limiting

Publications (2)

Publication Number Publication Date
IT8922689A0 IT8922689A0 (it) 1989-12-14
IT1237900B true IT1237900B (it) 1993-06-18

Family

ID=23236641

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02268989A IT1237900B (it) 1989-03-02 1989-12-14 Sistema telemetrico con stazione trasmittente usante un filtro ripetitivo per limitare larghezza di banda

Country Status (4)

Country Link
US (1) US4896152A (it)
JP (1) JPH02253712A (it)
FR (1) FR2644022A1 (it)
IT (1) IT1237900B (it)

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Publication number Priority date Publication date Assignee Title
US5142692A (en) * 1989-06-16 1992-08-25 Seiko Corp. Transmitting information with cut and flip spectrum
DE4106858A1 (de) * 1991-03-04 1992-09-10 Siemens Ag Anordnung zum herausfiltern von grundlinienschwankungen aus physiologischen messsignalen
SE468616B (sv) * 1991-06-12 1993-02-15 Ericsson Telefon Ab L M Foerfarande foer kompensering av saendarnyttosignalens beroende av oeverfoeringsfunktionen foer ett combinerfilter
FR2688895B1 (fr) * 1992-03-23 1997-09-19 Inst Francais Du Petrole Dispositif et methode d'exploration sismique.
US5502489A (en) * 1994-01-03 1996-03-26 Daewoo Electronics Co., Ltd. Method for the motion adaptive spatial filtering of video signals in an image coding apparatus
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US7515896B1 (en) * 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) * 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) * 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) * 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US7236754B2 (en) * 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6879817B1 (en) * 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) * 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6873836B1 (en) * 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7292835B2 (en) * 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) * 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7072427B2 (en) * 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
GB2390772B (en) * 2002-07-12 2005-12-07 Snell & Wilcox Ltd Improved noise reduction
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
TWI280690B (en) * 2003-03-18 2007-05-01 Tdk Corp Electronic device for wireless communications and reflector device for wireless communication cards
CN101981911B (zh) * 2008-01-18 2016-06-29 快图有限公司 图像处理方法和装置
CN112462179A (zh) * 2020-11-17 2021-03-09 中船动力研究院有限公司 一种狭窄带通滤波方法、装置、设备及存储介质

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386430A (en) * 1980-10-23 1983-05-31 International Telephone And Telegraph Corporation Automatic equalizer for synthesizing recursive filters
US4802222A (en) * 1983-12-12 1989-01-31 Sri International Data compression system and method for audio signals
US4682343A (en) * 1984-09-11 1987-07-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Processing circuit with asymmetry corrector and convolutional encoder for digital data
US4733403A (en) * 1986-05-12 1988-03-22 Motorola, Inc. Digital zero IF selectivity section
US4819252A (en) * 1988-02-16 1989-04-04 Thomson Consumer Electronics, Inc. Sampled data subsampling apparatus

Also Published As

Publication number Publication date
JPH02253712A (ja) 1990-10-12
IT8922689A0 (it) 1989-12-14
US4896152A (en) 1990-01-23
FR2644022A1 (fr) 1990-09-07

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Legal Events

Date Code Title Description
0001 Granted