DK0781014T3 - Apparat til visning af signalstatus af et QAM signal - Google Patents

Apparat til visning af signalstatus af et QAM signal

Info

Publication number
DK0781014T3
DK0781014T3 DK96118339T DK96118339T DK0781014T3 DK 0781014 T3 DK0781014 T3 DK 0781014T3 DK 96118339 T DK96118339 T DK 96118339T DK 96118339 T DK96118339 T DK 96118339T DK 0781014 T3 DK0781014 T3 DK 0781014T3
Authority
DK
Denmark
Prior art keywords
signal
demodulator
address
displaying
output
Prior art date
Application number
DK96118339T
Other languages
English (en)
Inventor
Christoph Dipl-Ing Balz
Original Assignee
Rohde & Schwarz
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 Rohde & Schwarz filed Critical Rohde & Schwarz
Application granted granted Critical
Publication of DK0781014T3 publication Critical patent/DK0781014T3/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Stereophonic System (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Circuits Of Receivers In General (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Selective Calling Equipment (AREA)
DK96118339T 1995-12-21 1996-11-15 Apparat til visning af signalstatus af et QAM signal DK0781014T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19547896A DE19547896C2 (de) 1995-12-21 1995-12-21 Anordnung zum Darstellen der Signalzustände eines QAM-modulierten Signals

Publications (1)

Publication Number Publication Date
DK0781014T3 true DK0781014T3 (da) 2004-09-20

Family

ID=7780855

Family Applications (1)

Application Number Title Priority Date Filing Date
DK96118339T DK0781014T3 (da) 1995-12-21 1996-11-15 Apparat til visning af signalstatus af et QAM signal

Country Status (6)

Country Link
US (1) US6417834B1 (da)
EP (1) EP0781014B1 (da)
JP (1) JP3927635B2 (da)
AT (1) ATE275309T1 (da)
DE (2) DE19547896C2 (da)
DK (1) DK0781014T3 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851093A1 (de) 1998-11-05 2000-05-11 Rohde & Schwarz Verfahren zur meßtechnischen Auswertung von Multiträger-Signalen
DE10161602A1 (de) 2001-12-14 2003-06-18 Rohde & Schwarz Verfahren und Anordnung zum graphischen Darstellen der l- und/oder Q-Komponenten von digital modulierten Hochfrequenzsignalen
JP4227633B2 (ja) * 2006-07-19 2009-02-18 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー 特性表示装置と特性表示方法
US7940861B2 (en) * 2007-12-07 2011-05-10 Advantech Advanced Microwave Technologies, Inc. QAM phase error detector
DE102013216300B4 (de) 2013-08-16 2020-03-12 Rohde & Schwarz GmbH & Co. Kommanditgesellschaft Verfahren und Vorrichtung zum grafischen Darstellen von I/Q-Werten eines Basisbandsignals
US11291861B2 (en) 2019-03-08 2022-04-05 Mevion Medical Systems, Inc. Delivery of radiation by column and generating a treatment plan therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630099A (en) * 1984-01-16 1986-12-16 At&T Bell Laboratories Time multiplexing chrominance information for compatible high-definition television
DE3407942A1 (de) * 1984-03-03 1985-09-05 Brown, Boveri & Cie Ag, 6800 Mannheim Digitales messgeraet zur quasi analogen messwertanzeige
US4631533A (en) * 1984-06-15 1986-12-23 Westinghouse Electric Corp. Display of eddy current detector data
GB8606572D0 (en) * 1986-03-17 1986-04-23 Hewlett Packard Ltd Analysis of digital radio transmissions
US4818931A (en) * 1987-02-19 1989-04-04 Hewlett-Packard Company Vector analyzer with display markers and linear transform capability
US5479606A (en) * 1993-07-21 1995-12-26 Pgm Systems, Inc. Data display apparatus for displaying patterns using samples of signal data
US5442646A (en) * 1994-02-01 1995-08-15 The Mitre Corporation Subcarrier communication system
JP3055085B2 (ja) * 1994-04-22 2000-06-19 株式会社アドバンテスト デジタル変調解析装置
US5612710A (en) * 1995-08-22 1997-03-18 Fairtron Corporation Real time low cost, large scale array 65K color display using lamps

Also Published As

Publication number Publication date
JPH09203750A (ja) 1997-08-05
DE19547896A1 (de) 1997-07-03
US6417834B1 (en) 2002-07-09
JP3927635B2 (ja) 2007-06-13
EP0781014B1 (de) 2004-09-01
DE19547896C2 (de) 1999-12-23
EP0781014A2 (de) 1997-06-25
EP0781014A3 (de) 2000-08-16
ATE275309T1 (de) 2004-09-15
DE59611073D1 (de) 2004-10-07

Similar Documents

Publication Publication Date Title
US3832485A (en) Information selection in image analysis systems employing line scanning
JPS6485631A (en) Electronic endoscopic apparatus
TW428158B (en) Method and device for driving liquid crystal display element
EP0837444A3 (en) Gray-scale signal generating circuit for a matrix-addressed liquid crystal display
JPH0783487B2 (ja) カラ−映像信号のレベルコントロ−ル回路
JPS6485475A (en) Parallel display device for plural pictures in color scanner monitor
DK0781014T3 (da) Apparat til visning af signalstatus af et QAM signal
ATE29192T1 (de) Bildverarbeitungseinrichtung.
JPH08101660A (ja) 表示装置
EP0258909A3 (en) Proportional spacing display apparatus
HK1016312A1 (en) Scrolling display method and apparatus
US4176375A (en) Apparatus for video display of audio frequency patterns
ATE150891T1 (de) Flüssigkristallanzeigesystem und verwendungsverfahren
JPS55140372A (en) Luminance signal processing unit
JPH0766251B2 (ja) 液晶表示装置
ES2003553A6 (es) Aparato de exploracion y de proyeccion de imagenes
CA2321409A1 (en) Picture frame generating circuit and digital television system using the same
KR880008093A (ko) 화상 픽업 및 표시 시스템
JP4278077B2 (ja) マルチキャリア信号の計測学的分析方法
JPS61198196A (ja) 表示装置
JPS6478076A (en) Signal correcting circuit
JPS5486236A (en) Liquid-crystal display unit
JPS61198197A (ja) 表示装置
JPS6428692A (en) Contrast display circuit for monochromatic display device
EP0309877A3 (de) Speicheranordnung