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ES8202996A1 - Perfeccionamientos en circuitos de nivelkde decision adapta-bles en sistemas para recibir senales digitales - Google Patents

Perfeccionamientos en circuitos de nivelkde decision adapta-bles en sistemas para recibir senales digitales

Info

Publication number
ES8202996A1
ES8202996A1 ES499824A ES499824A ES8202996A1 ES 8202996 A1 ES8202996 A1 ES 8202996A1 ES 499824 A ES499824 A ES 499824A ES 499824 A ES499824 A ES 499824A ES 8202996 A1 ES8202996 A1 ES 8202996A1
Authority
ES
Spain
Prior art keywords
signal
decision level
sliced
level circuit
adaptive decision
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
ES499824A
Other languages
English (en)
Other versions
ES499824A0 (es
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 ES499824A0 publication Critical patent/ES499824A0/es
Publication of ES8202996A1 publication Critical patent/ES8202996A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of DC offset
    • H04L25/065—Binary decisions
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
    • H03K5/086—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold generated by feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of DC offset
    • H04L25/063—Setting decision thresholds using feedback techniques only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Dc Digital Transmission (AREA)
  • Manipulation Of Pulses (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

APARATO RECEPTOR PARA AJUSTAR AUTOMATICAMENTE UN NIVEL DE DECISION PARA ERRORES MINIMOS EN LA DETECCION DEL NIVEL DE LA SEÑAL. UNA SEÑAL DIGITAL DE NIVELES MULTIPLES SE ACOPLA AL TERMINAL DE ENTRADA (100) DE LA CIRCUTERIA RECORTADA (101), QUE CUANTIFICA LA SEÑAL CON RESPECTO A UN NIVEL UNICO DE DECISION, INTRODUCIDO A SU ENTRADA (102). EL VALOR DE VOLTAJE NOMINAL DE ESTE NIVEL DE DECISION, SE INTRODUCE POR EL TERMINAL (111). UNA SEÑAL DE CORRECCION PROVINIENTE POR EL CONDUCTOR (109), SE SUMA A LA ANTERIOR. LAS SEÑALES DE VOLTAJE ALTO Y BAJO (S, S''), SE INTRODUCEN A UNA CIRCUTERIA DE ELABORACION DE SEÑAL Y DE REALIMENTACION, GENERANDO UNA SEÑAL DE ERROR PARA MANTENER EL NIVEL.
ES499824A 1980-03-07 1981-02-26 Perfeccionamientos en circuitos de nivelkde decision adapta-bles en sistemas para recibir senales digitales Expired ES8202996A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/127,936 US4326169A (en) 1980-03-07 1980-03-07 Adaptive decision level circuit

Publications (2)

Publication Number Publication Date
ES499824A0 ES499824A0 (es) 1982-03-01
ES8202996A1 true ES8202996A1 (es) 1982-03-01

Family

ID=22432728

Family Applications (1)

Application Number Title Priority Date Filing Date
ES499824A Expired ES8202996A1 (es) 1980-03-07 1981-02-26 Perfeccionamientos en circuitos de nivelkde decision adapta-bles en sistemas para recibir senales digitales

Country Status (10)

Country Link
US (1) US4326169A (es)
EP (1) EP0047293B1 (es)
JP (1) JPS57500450A (es)
BR (1) BR8107265A (es)
CA (1) CA1144618A (es)
DE (1) DE3162850D1 (es)
ES (1) ES8202996A1 (es)
GB (1) GB2072981B (es)
IT (1) IT1167708B (es)
WO (1) WO1981002653A1 (es)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753809A (en) * 1980-09-16 1982-03-31 Toshiba Corp Waveform shaping circuit of digital signal processor
US4449102A (en) * 1982-03-15 1984-05-15 Bell Telephone Laboratories, Incorporated Adaptive threshold circuit
JPS59257A (ja) * 1982-06-25 1984-01-05 Pioneer Electronic Corp デイジタル変調信号読取装置
JPS5952417A (ja) * 1982-09-16 1984-03-27 Toshiba Corp デ−タ抜取回路
JPS59112783A (ja) * 1982-12-20 1984-06-29 Sony Corp デジタルデ−タ受信機
US4555789A (en) * 1983-07-26 1985-11-26 Rockwell International Corporation Equalizer circuit suitable for adaptive use with fiber optics
US4638255A (en) * 1983-09-30 1987-01-20 Tektronix, Inc. Rectangular wave pulse generators
DE3418702A1 (de) * 1984-05-19 1985-11-21 kabelmetal electro GmbH, 3000 Hannover Verfahren und schaltungsanordnung zum abgleichen der neutralstellung eines demodulators
US4730265A (en) * 1986-08-04 1988-03-08 Motorola, Inc. Split-phase matched filter using single comparator
DE3633768A1 (de) * 1986-10-03 1988-04-14 Endress Hauser Gmbh Co Verfahren und anordnung zur erzeugung eines mittelwertfreien binaeren signals
NO875147L (no) * 1987-05-12 1988-11-14 Elektrisk Bureau As Fremgangsmaate for konvertering av signalnivaaer, samt anordning for utfoerelse av fremgangsmaaten.
US4847865A (en) * 1987-05-18 1989-07-11 Amp Incorporated Automatic threshold adjustment circuit for digital data communication
JP2530904B2 (ja) * 1988-02-22 1996-09-04 富士通株式会社 最適識別レベル制御方式
FI881007A0 (fi) 1988-03-04 1988-03-04 Teuvo Kohonen Foerfarande foer adaptiv avlaesning av kvantiserade signaler.
US4939750A (en) * 1988-03-17 1990-07-03 Oki Electric Industry, Co., Ltd. Adaptive signal discrimination circuit and a method for discriminating high and low level of data signals
FR2638038B1 (fr) * 1988-10-14 1991-01-04 Telediffusion Fse Circuit comparateur a hysteresis variable pour interface audionumerique de reception
EP0688446A1 (en) * 1993-03-10 1995-12-27 National Semiconductor Corporation Radio frequency telecommunications transceiver
US5453714A (en) * 1993-03-10 1995-09-26 National Semiconductor Corporation Binary FM demodulator with self-adjusting resonant operating frequency according to demodulated binary output signal duty cycle
US8773243B1 (en) * 2008-09-05 2014-07-08 Intelleflex Corporation Battery assisted RFID tag receiver training and synchronization methods
US8698469B1 (en) * 2011-09-12 2014-04-15 Maxim Integreated Products, Inc. System and method for predicting output voltage ripple and controlling a switched-mode power supply

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493874A (en) * 1966-01-05 1970-02-03 Vitro Corp Of America Statistical decision systems
US3534273A (en) * 1967-12-18 1970-10-13 Bell Telephone Labor Inc Automatic threshold level selection and eye tracking in digital transmission systems
US3721835A (en) * 1972-01-05 1973-03-20 Us Navy Hardlimiter, automatic symmetry circuit
US4109211A (en) * 1975-01-16 1978-08-22 Hitachi, Ltd. Variable thresholding circuit for converting an analog signal to a binary signal
US4163209A (en) * 1977-09-28 1979-07-31 Harris Corporation Technique for controlling memoryful non-linearities
US4263555A (en) * 1979-06-15 1981-04-21 Rca Corporation Signal detection system

Also Published As

Publication number Publication date
EP0047293B1 (en) 1984-03-28
JPS57500450A (es) 1982-03-11
GB2072981A (en) 1981-10-07
ES499824A0 (es) 1982-03-01
WO1981002653A1 (en) 1981-09-17
BR8107265A (pt) 1982-01-05
US4326169A (en) 1982-04-20
IT1167708B (it) 1987-05-13
EP0047293A1 (en) 1982-03-17
IT8119984A1 (it) 1982-08-25
GB2072981B (en) 1984-04-26
IT8119984A0 (it) 1981-02-25
EP0047293A4 (en) 1982-07-06
CA1144618A (en) 1983-04-12
DE3162850D1 (en) 1984-05-03

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