CA1157133A - Multitone frequency response and envelope delay distortion tests - Google Patents
Multitone frequency response and envelope delay distortion testsInfo
- Publication number
- CA1157133A CA1157133A CA000364829A CA364829A CA1157133A CA 1157133 A CA1157133 A CA 1157133A CA 000364829 A CA000364829 A CA 000364829A CA 364829 A CA364829 A CA 364829A CA 1157133 A CA1157133 A CA 1157133A
- Authority
- CA
- Canada
- Prior art keywords
- test
- measurements
- tones
- test signal
- phase component
- 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
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US107,787 | 1979-12-28 | ||
US06/107,787 US4301536A (en) | 1979-12-28 | 1979-12-28 | Multitone frequency response and envelope delay distortion tests |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1157133A true CA1157133A (en) | 1983-11-15 |
Family
ID=22318470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000364829A Expired CA1157133A (en) | 1979-12-28 | 1980-11-17 | Multitone frequency response and envelope delay distortion tests |
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)
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 |
EP0240833B1 (de) * | 1986-04-11 | 1991-09-11 | Siemens Aktiengesellschaft | Überwachungsvorrichtung zur Überwachung des Betriebzustandes von Übertragungseinrichtungen der Nachrichtenübertragungstechnik |
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. |
EP1033022A2 (en) * | 1997-09-02 | 2000-09-06 | 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)
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 |
-
1979
- 1979-12-28 US US06/107,787 patent/US4301536A/en not_active Expired - Lifetime
-
1980
- 1980-11-17 CA CA000364829A patent/CA1157133A/en not_active Expired
- 1980-12-16 SE SE8008852A patent/SE8008852L/ not_active Application Discontinuation
- 1980-12-22 GB GB8041093A patent/GB2066486B/en not_active Expired
- 1980-12-23 BE BE0/203289A patent/BE886822A/fr not_active IP Right Cessation
- 1980-12-23 DE DE19803048831 patent/DE3048831A1/de not_active Withdrawn
- 1980-12-24 NL NL8007052A patent/NL8007052A/nl not_active Application Discontinuation
- 1980-12-24 FR FR8027440A patent/FR2472756A1/fr active Pending
- 1980-12-27 JP JP18942980A patent/JPS56146339A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2472756A1 (fr) | 1981-07-03 |
JPS56146339A (en) | 1981-11-13 |
DE3048831A1 (de) | 1981-09-24 |
GB2066486B (en) | 1983-11-23 |
GB2066486A (en) | 1981-07-08 |
SE8008852L (sv) | 1981-06-29 |
US4301536A (en) | 1981-11-17 |
NL8007052A (nl) | 1981-07-16 |
BE886822A (fr) | 1981-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1157133A (en) | Multitone frequency response and envelope delay distortion tests | |
US4273970A (en) | Intermodulation distortion test | |
US6014425A (en) | Apparatus and method for qualifying telephones and other attached equipment for optimum DSL operation | |
US4417337A (en) | Adaptive multitone transmission parameter test arrangement | |
US6058162A (en) | Testing of digital subscriber loops using multi-tone power ratio (MTPR) waveform | |
CA1054258A (en) | Communication line test apparatus | |
US6829293B2 (en) | Method and apparatus for line probe signal processing | |
RU2101870C1 (ru) | Способ передачи модулированных волн, передающее устройство и приемное устройство | |
US4313197A (en) | Spread spectrum arrangement for (de)multiplexing speech signals and nonspeech signals | |
US4112264A (en) | Testing and switching system including remotely controllable stations for information transmission and communications networks and systems | |
JPH11274988A (ja) | 伝送特性測定装置 | |
US4611342A (en) | Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data | |
US3978282A (en) | Apparatus and method for measuring the transmission characteristics of a network | |
US6944132B1 (en) | Transmission apparatus, order wire transmission system and order wire monitoring method | |
US4768203A (en) | Signal-to-noise ratio testing in adaptive differential pulse code modulation | |
US20070230355A1 (en) | Test apparatus and test method | |
US5751152A (en) | Method and apparatus for concurrently measuring near end crosstalk at two ends of a cable | |
US4290010A (en) | Method and apparatus for measuring transmission characteristic of a test object | |
US5559440A (en) | Method and apparatus for testing telecommunications equipment having both analog and digital interfaces | |
US6459773B1 (en) | System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber or network generated tones | |
US6385296B1 (en) | System to test a connection in a telephone network | |
EP0863642B1 (en) | Shaping code for PCM modems | |
US6043919A (en) | Frequency characteristic correction system for optical network | |
JP3487788B2 (ja) | デジタル伝送線路中に発生する伝送線路減衰の測定法 | |
US7003098B2 (en) | Method and system for measurement of the delay through a network link bounded by an echo canceller |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |