SK286571B6 - Zariadenie na vysielanie, prijímanie a demodulovanie prenosov a spôsob vysielania a prijímania dát - Google Patents

Zariadenie na vysielanie, prijímanie a demodulovanie prenosov a spôsob vysielania a prijímania dát Download PDF

Info

Publication number
SK286571B6
SK286571B6 SK1644-98A SK164498A SK286571B6 SK 286571 B6 SK286571 B6 SK 286571B6 SK 164498 A SK164498 A SK 164498A SK 286571 B6 SK286571 B6 SK 286571B6
Authority
SK
Slovakia
Prior art keywords
data signal
frequency
data
detection
receiver
Prior art date
Application number
SK1644-98A
Other languages
English (en)
Slovak (sk)
Other versions
SK164498A3 (en
Inventor
Clive Russell Irving
David John Spreadbury
Colin Richard Smithers
Timothy Charles Mace
Original Assignee
Tracker Network (Uk) Limited
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 Tracker Network (Uk) Limited filed Critical Tracker Network (Uk) Limited
Publication of SK164498A3 publication Critical patent/SK164498A3/sk
Publication of SK286571B6 publication Critical patent/SK286571B6/sk

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04—Details
    • G01S1/045—Receivers
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
SK1644-98A 1996-05-31 1997-05-28 Zariadenie na vysielanie, prijímanie a demodulovanie prenosov a spôsob vysielania a prijímania dát SK286571B6 (sk)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9611425.1A GB9611425D0 (en) 1996-05-31 1996-05-31 Digital communications
PCT/GB1997/001444 WO1997045962A1 (en) 1996-05-31 1997-05-28 Method of transmitting and receiving data, system and receiver therefor

Publications (2)

Publication Number Publication Date
SK164498A3 SK164498A3 (en) 1999-06-11
SK286571B6 true SK286571B6 (sk) 2009-01-07

Family

ID=10794597

Family Applications (1)

Application Number Title Priority Date Filing Date
SK1644-98A SK286571B6 (sk) 1996-05-31 1997-05-28 Zariadenie na vysielanie, prijímanie a demodulovanie prenosov a spôsob vysielania a prijímania dát

Country Status (12)

Country Link
US (1) US6522698B1 (xx)
EP (1) EP0903015B1 (xx)
AU (1) AU2968397A (xx)
CZ (1) CZ294978B6 (xx)
DE (1) DE69732356T2 (xx)
ES (1) ES2237796T3 (xx)
GB (1) GB9611425D0 (xx)
PL (1) PL184100B1 (xx)
RU (1) RU2214049C2 (xx)
SK (1) SK286571B6 (xx)
WO (1) WO1997045962A1 (xx)
ZA (1) ZA974783B (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9612195D0 (en) * 1996-06-11 1996-08-14 Plextek Ltd Communication system
KR100871999B1 (ko) * 2001-05-08 2008-12-05 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 코딩
US7536169B2 (en) 2002-05-17 2009-05-19 Lojack Operating Company Lp Method of and apparatus for utilizing geographically spread cellular radio networks to supplement more geographically limited stolen vehicle recovery radio networks in activation of radio tracking and recovery of such vehicles
US20050152279A1 (en) * 2004-01-13 2005-07-14 Robertson Brett L. Downlink power control in wireless communications networks and methods
JP2007525114A (ja) * 2004-01-29 2007-08-30 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ プログラマブルで一時停止可能なクロック発生ユニット
US7561102B2 (en) * 2004-07-08 2009-07-14 Lojack Operating Company, Lp Method of and system for expanding localized missing customer-vehicle law enforcement-aided VHF recovery networks with location-on-demand supplemental service features via such networks for improved law enforcement-aided recovery, and via the internet for providing supplemental customer service features
US7593711B2 (en) 2005-05-18 2009-09-22 Lojack Operating Company, Lp Vehicle locating unit with improved power management method
US20060261981A1 (en) * 2005-05-18 2006-11-23 Frank Romano Vehicle locating unit proof of life subsystem and method
US7511606B2 (en) * 2005-05-18 2009-03-31 Lojack Operating Company Lp Vehicle locating unit with input voltage protection
US20070040668A1 (en) * 2005-08-18 2007-02-22 Sampath Krishna Recovery system with a more reliable network
US7664462B2 (en) 2005-09-19 2010-02-16 Lojack Operating Company Lp Recovery system with De-queue logic
US8787823B2 (en) * 2005-09-19 2014-07-22 Lojack Corporation Recovery system with repeating communication capabilities
GB2444308B (en) 2006-12-01 2011-11-16 Plextek Ltd Narrow band transceiver
US8149142B2 (en) 2007-03-12 2012-04-03 Lojack Operating Company, L.P. Adaptive range vehicle locating unit, vehicle tracking unit and vehicle recovery system including same
PT2245606E (pt) 2008-02-14 2015-03-31 Lojack Corp Sistema de recuperação de bens
US8115656B2 (en) * 2008-02-25 2012-02-14 Recovery Systems Holdings, Llc Vehicle security and monitoring system
AU2008351425B2 (en) 2008-02-28 2014-01-23 Volvo Group North America, Llc GPS filter algorithm
EP2262333B1 (en) * 2008-03-28 2018-05-16 NTT DoCoMo, Inc. Mobile station, base station, basic frequency block specifying method, and band control method
JP5224869B2 (ja) * 2008-03-28 2013-07-03 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムで使用される基地局装置、ユーザ装置及び方法
US8169328B2 (en) * 2009-06-09 2012-05-01 Lojack Operating Company, Lp Proximity monitoring and locating system
JP5446671B2 (ja) * 2009-09-29 2014-03-19 ソニー株式会社 無線伝送システム及び無線通信方法
US8630605B2 (en) 2009-10-23 2014-01-14 Lojack Corporation Synchronization system and method for achieving low power battery operation of a vehicle locating unit in a stolen vehicle recovery system which receives periodic transmissions
US8618957B2 (en) * 2009-10-23 2013-12-31 Lojack Corporation Power management system and method for vehicle locating unit
US10461868B2 (en) 2017-07-05 2019-10-29 Calamp Wireless Networks Corporation Systems and methods for reducing undesirable behaviors in RF communications
US10243766B2 (en) 2017-07-05 2019-03-26 Lojack Corporation Systems and methods for determining and compensating for offsets in RF communications
US10367457B2 (en) 2017-07-06 2019-07-30 Calamp Wireless Networks Corporation Single stage ramped power amplifiers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215934A (en) * 1960-10-21 1965-11-02 Sylvania Electric Prod System for quantizing intelligence according to ratio of outputs of adjacent band-pass filters
US4301454A (en) * 1979-11-30 1981-11-17 Bunker Ramo Corporation Channelized receiver system
US4818998A (en) * 1986-03-31 1989-04-04 Lo-Jack Corporation Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like
FR2670062B1 (fr) * 1990-11-30 1993-11-12 Thomson Csf Procede de recalage des oscillateurs locaux d'un recepteur et dispositif pour la mise en óoeuvre du procede.
US5367539A (en) * 1991-12-31 1994-11-22 At&T Bell Laboratories Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
FR2691813B1 (fr) * 1992-05-26 1997-12-19 Thomson Csf Systeme pour l'identification et la detection automatique de vehicules ou d'objets.
IL104264A (en) 1992-08-20 1996-07-23 Nexus Telecomm Syst Remote location determination system
DE4425713C1 (de) * 1994-07-20 1995-04-20 Inst Rundfunktechnik Gmbh Verfahren zur Vielträger Modulation und Demodulation von digital codierten Daten
US6111911A (en) * 1995-06-07 2000-08-29 Sanconix, Inc Direct sequence frequency ambiguity resolving receiver
US6178197B1 (en) * 1997-06-23 2001-01-23 Cellnet Data Systems, Inc. Frequency discrimination in a spread spectrum signal processing system

Also Published As

Publication number Publication date
US6522698B1 (en) 2003-02-18
ZA974783B (en) 1997-12-30
AU2968397A (en) 1998-01-05
SK164498A3 (en) 1999-06-11
CZ374098A3 (cs) 1999-08-11
EP0903015B1 (en) 2005-01-26
EP0903015A1 (en) 1999-03-24
RU2214049C2 (ru) 2003-10-10
PL184100B1 (pl) 2002-08-30
GB9611425D0 (en) 1996-08-07
ES2237796T3 (es) 2005-08-01
CZ294978B6 (cs) 2005-04-13
WO1997045962A1 (en) 1997-12-04
PL330143A1 (en) 1999-04-26
DE69732356D1 (de) 2005-03-03
DE69732356T2 (de) 2006-01-05

Similar Documents

Publication Publication Date Title
SK286571B6 (sk) Zariadenie na vysielanie, prijímanie a demodulovanie prenosov a spôsob vysielania a prijímania dát
US5717718A (en) Multipoint to point radiocommunications network
US5903594A (en) Power line communications spread spectrum protocol
CN100582813C (zh) 用于无线网络的雷达保护设备及其方法
US8934860B2 (en) Method for detecting an ingress of a short-wave radio signal in a power line communication system and power line communication modem
DE102009047061B4 (de) Verfahren und Signalverarbeitungssystem zur automatischen Bandbreitensteuerung
CN102298685B (zh) 基于虚拟仪器的汽车电子射频识别参数检测系统
CN103581957A (zh) 一种干扰检测方法、设备及系统
US4853686A (en) Method and apparatus for establishing a connection in shortwave radio networks
US20030162512A1 (en) Method for adjusting transmission parameters from a transmitter for digital radio signals
US5568480A (en) Method of determining a free channel in FDM radiocommunication systems
CA1209666A (en) Tone receiver for digital data communication systems
CN105187142A (zh) 一种空闲频谱探测的方法和装置
US7308046B1 (en) System and method for detecting presence of digitally modulated waveform
US7272189B2 (en) Method to determine the presence of multi-carrier signals
CN216490518U (zh) 一种多频wifi产品辐射骚扰测试装置
AU2004305621A1 (en) Method for monitoring the time synchronisation of emitters in a common wave network
Somers Long Term Frequency Band Occupancy Measurements with Increased Bandwidth and Sensitivity using Specmon version 2
CN108880718B (zh) 调频广播实时监测系统、接收机及调频广播实时监测方法
Anderson et al. A technique for digital information broadcasting using SCA channels
JP2531377B2 (ja) 変調方式識別回路
CA2444512A1 (en) Apparatus and method for minimizing multipath interference
CA1127244A (en) System for detecting one of a group of spectrally adjacent tones
JPH0219034A (ja) ダイバーシチ受信法
GB2350020A (en) Radio transmission system and method

Legal Events

Date Code Title Description
MM4A Patent lapsed due to non-payment of maintenance fees

Effective date: 20160528