JPS56138348A - Measuring device for transmitting characteristic - Google Patents

Measuring device for transmitting characteristic

Info

Publication number
JPS56138348A
JPS56138348A JP17702680A JP17702680A JPS56138348A JP S56138348 A JPS56138348 A JP S56138348A JP 17702680 A JP17702680 A JP 17702680A JP 17702680 A JP17702680 A JP 17702680A JP S56138348 A JPS56138348 A JP S56138348A
Authority
JP
Japan
Prior art keywords
pulse
sequence
output
decoder
transformer
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.)
Granted
Application number
JP17702680A
Other languages
Japanese (ja)
Other versions
JPH025347B2 (en
Inventor
Makusuton Kuroufuoodo Toomasu
Sukotsuto Reinoruzu Arasutea
Ronarudo Yangu Iban
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard Ltd
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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS56138348A publication Critical patent/JPS56138348A/en
Publication of JPH025347B2 publication Critical patent/JPH025347B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To measure the noise margin of digital transmission system, by providing the pulse sequence generating means, variable pulse inserting means, pulse position changing means, means altering the parameter for variable pulse, and shift value integrating means. CONSTITUTION:When the pulse sequence is transmitted via the simulator 10, the output sequence is subjected to attenuation, and the interference between codes (ISI) is applied to the output sequence by keeping the transmission cable in the same state as itself. The pulse in this sequence passes through the generator under test and reaches the coupling data input amplifier/clock recovery circuit 36 via the 1st transformer 14, 2nd transformer 18 and line 16. The clock signal is recovered in this circuit and the amplification at the signal given with the pulse sequence is made to forward the output of positive and negative to HDB3 and decoder 28. The output of the decoder 38 is equal to the pattern of the generator 20 when no error.
JP17702680A 1979-12-14 1980-12-15 Measuring device for transmitting characteristic Granted JPS56138348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7943265 1979-12-14

Publications (2)

Publication Number Publication Date
JPS56138348A true JPS56138348A (en) 1981-10-28
JPH025347B2 JPH025347B2 (en) 1990-02-01

Family

ID=10509873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17702680A Granted JPS56138348A (en) 1979-12-14 1980-12-15 Measuring device for transmitting characteristic

Country Status (1)

Country Link
JP (1) JPS56138348A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008199380A (en) * 2007-02-14 2008-08-28 Mitsubishi Electric Corp Waveform signal analyzer
JP2009182968A (en) * 2008-01-31 2009-08-13 Tektronix Internatl Sales Gmbh Signal generator, serial data pattern intersymbol interference effect generation method, and serial data pattern intersymbol interference effect calibration method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571043U (en) * 1990-12-04 1993-09-24 油谷重工株式会社 Work light equipment for construction machinery
TWM589767U (en) * 2019-09-26 2020-01-21 統一超商股份有限公司 Commercial microwave oven

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731011A (en) * 1970-12-03 1973-05-01 J Lachaise System for measuring the regeneration threshold of repeaters for multiplex pulse code modulation and data transmission systems
JPS4866808A (en) * 1971-12-13 1973-09-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731011A (en) * 1970-12-03 1973-05-01 J Lachaise System for measuring the regeneration threshold of repeaters for multiplex pulse code modulation and data transmission systems
JPS4866808A (en) * 1971-12-13 1973-09-13

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008199380A (en) * 2007-02-14 2008-08-28 Mitsubishi Electric Corp Waveform signal analyzer
JP2009182968A (en) * 2008-01-31 2009-08-13 Tektronix Internatl Sales Gmbh Signal generator, serial data pattern intersymbol interference effect generation method, and serial data pattern intersymbol interference effect calibration method

Also Published As

Publication number Publication date
JPH025347B2 (en) 1990-02-01

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