GB2066486B - Measuring frequency response or enveloped delay distortion - Google Patents

Measuring frequency response or enveloped delay distortion

Info

Publication number
GB2066486B
GB2066486B GB8041093A GB8041093A GB2066486B GB 2066486 B GB2066486 B GB 2066486B GB 8041093 A GB8041093 A GB 8041093A GB 8041093 A GB8041093 A GB 8041093A GB 2066486 B GB2066486 B GB 2066486B
Authority
GB
United Kingdom
Prior art keywords
enveloped
frequency response
measuring frequency
delay distortion
distortion
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8041093A
Other languages
English (en)
Other versions
GB2066486A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB2066486A publication Critical patent/GB2066486A/en
Application granted granted Critical
Publication of GB2066486B publication Critical patent/GB2066486B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB8041093A 1979-12-28 1980-12-22 Measuring frequency response or enveloped delay distortion Expired GB2066486B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/107,787 US4301536A (en) 1979-12-28 1979-12-28 Multitone frequency response and envelope delay distortion tests

Publications (2)

Publication Number Publication Date
GB2066486A GB2066486A (en) 1981-07-08
GB2066486B true GB2066486B (en) 1983-11-23

Family

ID=22318470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8041093A Expired GB2066486B (en) 1979-12-28 1980-12-22 Measuring frequency response or enveloped delay distortion

Country Status (9)

Country Link
US (1) US4301536A ( )
JP (1) JPS56146339A ( )
BE (1) BE886822A ( )
CA (1) CA1157133A ( )
DE (1) DE3048831A1 ( )
FR (1) FR2472756A1 ( )
GB (1) GB2066486B ( )
NL (1) NL8007052A ( )
SE (1) SE8008852L ( )

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2074738B (en) * 1980-03-29 1984-03-07 Shibasoku Co Ltd Apparatus for measuring distortion factor
US4403297A (en) * 1981-01-02 1983-09-06 Loveland Controls Company Process control system prover
US4417337A (en) * 1981-06-29 1983-11-22 Bell Telephone Laboratories, Incorporated, Adaptive multitone transmission parameter test arrangement
DE3224080A1 (de) * 1982-06-28 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Verfahren zur ermittlung der daempfungsverzerrung und der gruppenlaufzeitverzerrung eines messobjekts, insbesondere einer datenuebertragungsstrecke
US4633411A (en) * 1982-12-27 1986-12-30 Rockwell International Corporation Link quality analyzer
DE3445915C2 (de) * 1984-01-09 1994-09-29 Hewlett Packard Co Hochfrequenz-Netzwerkanalysator
DE3416575A1 (de) * 1984-05-04 1985-11-07 Ruhrkohle Ag, 4300 Essen Vorrichtung fuer den untertagebergbau zur pruefung und zum abgleich von messwertgebern
US4677674A (en) * 1985-04-03 1987-06-30 Seth Snyder Apparatus and method for reestablishing previously established settings on the controls of an audio mixer
ATE67356T1 (de) * 1986-04-11 1991-09-15 Siemens Ag Ueberwachungsvorrichtung zur ueberwachung des betriebzustandes von uebertragungseinrichtungen der nachrichtenuebertragungstechnik.
US4768203A (en) * 1987-09-18 1988-08-30 Bell Communications Research, Inc. Signal-to-noise ratio testing in adaptive differential pulse code modulation
US5317439A (en) * 1992-07-17 1994-05-31 At&T Bell Laboratories Automatic on-line monitoring and optimization of optical network switching nodes
US5399976A (en) * 1993-02-05 1995-03-21 Hewlett-Packard Company Group delay estimate system using least square fit to phase response ramp
DE19522613C1 (de) * 1995-06-22 1996-10-10 Rohde & Schwarz Netzwerkanalysator
US5672974A (en) * 1996-01-18 1997-09-30 Convex Corporation Returned reference compatible, straightaway envelope delay measurement instrument and method
US5870429A (en) * 1996-06-17 1999-02-09 Motorola, Inc. Apparatus method, and software modem for utilizing envelope delay distortion characteristics to determine a symbol rate and a carrier frequency for data transfer
BE1011195A3 (nl) * 1997-06-05 1999-06-01 Siemens Atea Naamloze Vennoots Werkwijze en inrichting voor het karakteriseren van een netwerk.
CA2302399A1 (en) * 1997-09-02 1999-03-11 Ameritec Corporation Apparatus and methods for automated testing of wireless communications systems
US6058162A (en) * 1997-12-05 2000-05-02 Harris Corporation Testing of digital subscriber loops using multi-tone power ratio (MTPR) waveform
US6556223B1 (en) * 1999-08-12 2003-04-29 Ttc, A Division Of Dynatech, Llc Communication test set with a graphical user interface that can simultaneously present and update test results of a communication signal at multiple levels
DE19944054B4 (de) * 1999-09-14 2004-11-18 Infineon Technologies Ag Anordnung zum Analysieren der nichtlinearen Eigenschaften eines Kommunikationskanals
US6798830B1 (en) * 2000-07-11 2004-09-28 Teradyne, Inc. Methods and apparatus for generating a test signal for xDSL devices
US6766290B2 (en) * 2001-03-30 2004-07-20 Intel Corporation Voice responsive audio system
DE102005002207A1 (de) * 2004-11-26 2006-06-01 Rohde & Schwarz Gmbh & Co. Kg Verfahren und System zur Ermittlung der Amplitude und/oder Phase des Ausgangssignals eines Übertragungsgliedes in Abhängigkeit der Amplitude des Eingangsignals
US7783260B2 (en) * 2006-04-27 2010-08-24 Crestcom, Inc. Method and apparatus for adaptively controlling signals
US8737573B2 (en) 2011-05-09 2014-05-27 Intelligent Decisions, Inc. Systems, methods, and devices for testing communication lines
US9350470B1 (en) 2015-02-27 2016-05-24 Keysight Technologies, Inc. Phase slope reference adapted for use in wideband phase spectrum measurements

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271666A (en) * 1964-12-21 1966-09-06 Bell Telephone Labor Inc Apparatus for measuring envelope delay distortion wherein selected impulses of a high frequency standard are gated to one input of a bistable phase comparator
US3573611A (en) * 1969-01-23 1971-04-06 Collins Radio Co Simultaneous delay measurement between selected signal frequency channels and reference frequency channel
US3842247A (en) * 1972-10-18 1974-10-15 Bell Telephone Labor Inc Apparatus and method for measuring envelope delay utilizing {90 -point technique
DE2327115C3 (de) * 1973-05-28 1981-08-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Meß- und Prüfverfahren für Filter der Nachrichtentechnik
GB1429617A (en) * 1974-06-03 1976-03-24 Hewlett Packard Ltd Method and apparatus for measuring the group delay character istics of a transmission path
US3973112A (en) * 1974-07-29 1976-08-03 Time/Data Corporation System for determining transfer function
US4001559A (en) * 1974-12-16 1977-01-04 Northern Telecom, Inc. Programmable measuring
US3988667A (en) * 1975-03-06 1976-10-26 Hewlett-Packard Company Noise source for transfer function testing
JPS581607B2 (ja) * 1975-06-26 1983-01-12 株式会社クボタ チンサカキヨセキ
US3968427A (en) * 1975-08-11 1976-07-06 Hewlett-Packard Company Group delay measurement apparatus and method
US4023098A (en) * 1975-08-27 1977-05-10 Hewlett-Packard Company Noise burst source for transfer function testing
DE2602601C3 (de) * 1976-01-24 1979-03-29 Deutsche Welle Gemeinnuetzige Anstalt Des Oeffentlichen Rechts, 5000 Koeln Verfahren zur betriebsmäßigen Überprüfung von Frequenzgang und Pegel von Magnettongeräten
US4039769A (en) * 1976-04-22 1977-08-02 Bradley Telcom Corporation Instrument and method for measuring envelope delay in a transmission channel
DE2724991B2 (de) * 1977-06-02 1979-08-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Meßverfahren und Schaltungsanordnung zur Ermittlung der Dämpfungsverzerrung und der Gruppenlaufzeitverzerrung eines Meßobjekts
DE2849119A1 (de) * 1978-11-13 1980-05-14 Siemens Ag Verfahren und schaltungsanordnung zur daempfungsmessung, insbesondere zur ermittlung der daempfungs- und/oder gruppenlaufzeitverzerrung eines messobjektes

Also Published As

Publication number Publication date
US4301536A (en) 1981-11-17
BE886822A (fr) 1981-04-16
JPS56146339A (en) 1981-11-13
SE8008852L (sv) 1981-06-29
CA1157133A (en) 1983-11-15
GB2066486A (en) 1981-07-08
DE3048831A1 (de) 1981-09-24
FR2472756A1 (fr) 1981-07-03
NL8007052A (nl) 1981-07-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee