IN2014MN02315A - - Google Patents

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Publication number
IN2014MN02315A
IN2014MN02315A IN2315MUN2014A IN2014MN02315A IN 2014MN02315 A IN2014MN02315 A IN 2014MN02315A IN 2315MUN2014 A IN2315MUN2014 A IN 2315MUN2014A IN 2014MN02315 A IN2014MN02315 A IN 2014MN02315A
Authority
IN
India
Prior art keywords
signal
transmitter
square wave
direct digital
digital synthesizer
Prior art date
Application number
Other languages
English (en)
Inventor
Stephen John Petherick
George Mainescu
Ion Dracea
Razvan Gabriel Stefanoiu
John Mark Royle
Original Assignee
Metrotech 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 Metrotech Corp filed Critical Metrotech Corp
Publication of IN2014MN02315A publication Critical patent/IN2014MN02315A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transmitters (AREA)
  • Geophysics And Detection Of Objects (AREA)
IN2315MUN2014 2012-04-30 2013-04-30 IN2014MN02315A (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261640441P 2012-04-30 2012-04-30
PCT/US2013/038945 WO2013166070A1 (en) 2012-04-30 2013-04-30 Signal select in underground line location
US13/874,312 US9473203B2 (en) 2012-04-30 2013-04-30 Signal select in underground line location

Publications (1)

Publication Number Publication Date
IN2014MN02315A true IN2014MN02315A (de) 2015-08-07

Family

ID=49477269

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2315MUN2014 IN2014MN02315A (de) 2012-04-30 2013-04-30

Country Status (7)

Country Link
US (2) US9473203B2 (de)
EP (1) EP2845038B1 (de)
JP (1) JP6373259B2 (de)
CN (1) CN104350394B (de)
AU (1) AU2013256443B2 (de)
IN (1) IN2014MN02315A (de)
WO (1) WO2013166070A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9473203B2 (en) * 2012-04-30 2016-10-18 Metrotech Corporation Signal select in underground line location
US10063220B2 (en) * 2015-01-23 2018-08-28 Metrotech Corporation Signal generator with multiple outputs
JP6437866B2 (ja) * 2015-03-31 2018-12-12 大阪瓦斯株式会社 埋設金属の探知用の送信信号の設定方法及びこの設定方法を用いた探知装置
US10073186B1 (en) * 2015-10-21 2018-09-11 SeeScan, Inc. Keyed current signal utility locating systems and methods
US9857494B2 (en) 2015-12-01 2018-01-02 Mclaughlin Group, Inc. System and method for locating an underground utility
US10809410B2 (en) * 2016-06-09 2020-10-20 Optimal Ranging, Inc. Method and apparatus for simultaneous inductive excitation and locating of utilities
FR3078851B1 (fr) * 2018-03-07 2020-02-14 Teledyne E2V Semiconductors Sas Camera de vision a mesure de temps de vol optimisee pour environnement multi-cameras
US11280934B2 (en) * 2018-06-21 2022-03-22 SeeScan, Inc. Electromagnetic marker devices for buried or hidden use

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FR2431221A1 (fr) 1978-07-13 1980-02-08 Cit Alcatel Generateur numerique d'ondes sinusoidales echantillonnees
US4258044A (en) 1979-05-25 1981-03-24 E. I. Du Pont De Nemours And Company Fungicidal haloalkyl polyhaloquinoxaline sulfonates
US4840485A (en) * 1986-12-17 1989-06-20 I.S.S. (U.S.A.) Inc. Frequency domain cross-correlation fluorometry with phase-locked loop frequency synthesizers
US5040240A (en) * 1989-11-30 1991-08-13 Magnavox Government And Industrial Electronics Company Receiver architecture for use with a global positioning system
US5231355A (en) * 1990-06-18 1993-07-27 The Charles Machine Works, Inc. Locator transmitter having an automatically tuned antenna
US5721514A (en) * 1995-11-22 1998-02-24 Efratom Time And Frequency Products, Inc. Digital frequency generation in atomic frequency standards using digital phase shifting
US6307441B1 (en) * 1997-12-31 2001-10-23 Texas Instruments Incorporated Shape modulation transmit loop with digital frequency control and method for same
US7276970B2 (en) * 1998-11-12 2007-10-02 Broadcom Corporation System and method for linearizing a CMOS differential pair
US6591091B1 (en) * 1998-11-12 2003-07-08 Broadcom Corporation System and method for coarse/fine PLL adjustment
US6525609B1 (en) * 1998-11-12 2003-02-25 Broadcom Corporation Large gain range, high linearity, low noise MOS VGA
US6418174B1 (en) * 1999-02-19 2002-07-09 Rf Micro Devices, Inc. Frequency shift key modulator
DE19933333C1 (de) 1999-07-16 2001-02-15 Hagenuk Kmt Kabelmestechnik Gm Verfahren und Vorrichtung zur Ortung einer metallischen Leitung
US6297691B1 (en) * 2000-06-09 2001-10-02 Rosemount Inc. Method and apparatus for demodulating coherent and non-coherent modulated signals
CA2352398C (en) * 2000-07-06 2005-07-26 Unique Broadband Systems, Inc. Low phase noise frequency converter
US6664827B2 (en) * 2001-03-02 2003-12-16 Adc Telecommunications, Inc. Direct digital synthesizer phase locked loop
US20040179628A1 (en) * 2001-04-16 2004-09-16 Abraham Haskin Method and apparatus for digital data transmission and reception using synthetically generated frequency
JP3888154B2 (ja) * 2001-12-21 2007-02-28 岩崎通信機株式会社 変調信号発生装置
EP1505738A4 (de) * 2002-06-19 2006-08-30 Fujitsu Ltd Sender
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US7624296B2 (en) * 2006-12-20 2009-11-24 Itt Manufacturing Enterprises, Inc. Method and apparatus for synchronizing multiple direct digital synthesizers (DDSs) across multiple printed circuit assemblies (PCAs)
US7570123B2 (en) * 2006-12-27 2009-08-04 Telefonaktiebolaget Lm Ericsson (Publ) Digitally controlled analog frequency synthesizer
US8209136B2 (en) * 2007-05-18 2012-06-26 Metrotech Corporation, Inc. Enhanced precise location
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Also Published As

Publication number Publication date
CN104350394A (zh) 2015-02-11
CN104350394B (zh) 2017-12-15
US20170099168A1 (en) 2017-04-06
AU2013256443A1 (en) 2014-11-27
EP2845038A1 (de) 2015-03-11
AU2013256443B2 (en) 2017-05-25
EP2845038B1 (de) 2018-08-08
AU2013256443A8 (en) 2015-07-16
US9473203B2 (en) 2016-10-18
US10833901B2 (en) 2020-11-10
WO2013166070A1 (en) 2013-11-07
US20130287125A1 (en) 2013-10-31
JP2015521410A (ja) 2015-07-27
EP2845038A4 (de) 2015-12-23
JP6373259B2 (ja) 2018-08-15

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