ES8405216A1 - Un dispositivo de deteccion de errores en tiempo real para datos binarios codificados. - Google Patents

Un dispositivo de deteccion de errores en tiempo real para datos binarios codificados.

Info

Publication number
ES8405216A1
ES8405216A1 ES523862A ES523862A ES8405216A1 ES 8405216 A1 ES8405216 A1 ES 8405216A1 ES 523862 A ES523862 A ES 523862A ES 523862 A ES523862 A ES 523862A ES 8405216 A1 ES8405216 A1 ES 8405216A1
Authority
ES
Spain
Prior art keywords
data stream
stream encoded
digital data
detecting errors
double density
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
ES523862A
Other languages
English (en)
Other versions
ES523862A0 (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.)
Lockheed Electronics Co Inc
Original Assignee
Lockheed Electronics 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 Lockheed Electronics Co Inc filed Critical Lockheed Electronics Co Inc
Publication of ES523862A0 publication Critical patent/ES523862A0/es
Publication of ES8405216A1 publication Critical patent/ES8405216A1/es
Expired 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
    • H04L1/245—Testing correct operation by using the properties of transmission codes
    • H04L1/246—Testing correct operation by using the properties of transmission codes two-level transmission codes, e.g. binary
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Error Detection And Correction (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

DISPOSITIVO DE DETECCION DE ERRORES EN TIEMPO REAL, PARA DATOS BINARIOS CODIFICADOS.DURANTE LA DESCODIFICACION DEL PERFIL DE ONDA SE GENERAN UNAS SEÑALES INDICATIVAS DE LOS INTERVALOS ENTRE TRANSICIONES SUCESIVAS DE ESTE PERFIL. LOS INTERVALOS SON DE CORTA DURACION, MEDIA O LARGA EN LA RELACION DE DOS: TRES: CUATRO, COMPRENDIENDO EL DISPOSITIVO DE DETECCION DE ERRORES EN COMBINACION, A) SISTEMAS CON PRIMER Y SEGUNDO ESTADOS OPERABLES ACOPLADOS PARA PASAR ALTERNANDO DE UNO A OTRO DE ESTOS ESTADOS EN RESPUESTA A CADA DETECCION; B) SISTEMAS PARA ASEGURAR QUE LOS SISTEMASSE HALLEN EN PRIMER ESTADO EN RESPUESTA A CADA DETECCION, EN DICHO PERFIL DE ONDA, DE UN INTERVALO DE TRANSICION CORRESPONDIENTE A DICHA LARGA DURACION; Y C) SISTEMAS PARA GENERAR UNA SEÑAL DE ERROR SIEMPRE QUE LOS SISTEMAS CITADOS PRIMERAMENTE SE HALLEN EN EL SEGUNDO ESTADO EN EL MOMENTO DE LA DETECCION DE UN INTERVALO CORRESPONDIENTE A LA LARGA DURACION. LOS SISTEMAS GENERADORES DE SEÑALES DE ERROR INCLUYEN METODOS DE GENERARUNA SEÑAL DE ERROR SIEMPRE QUE UNA TRANSICION DE PERFIL DE ONDA DEJE DE DETECTARSE DENTRO DE UN INTERVALO PREFIJADO TRASGURAR QUE LOS SISTEMASLA DETECCION DE LA TRANSICION PRECEDENTE, CUANDO EL INTERVALO PREFIJADO EXCEDA DE LA LARGA DURACION.
ES523862A 1982-09-07 1983-07-05 Un dispositivo de deteccion de errores en tiempo real para datos binarios codificados. Expired ES8405216A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/415,695 US4502142A (en) 1982-09-07 1982-09-07 Apparatus for detecting errors in a digital data stream encoded in a double density code

Publications (2)

Publication Number Publication Date
ES523862A0 ES523862A0 (es) 1984-05-16
ES8405216A1 true ES8405216A1 (es) 1984-05-16

Family

ID=23646790

Family Applications (1)

Application Number Title Priority Date Filing Date
ES523862A Expired ES8405216A1 (es) 1982-09-07 1983-07-05 Un dispositivo de deteccion de errores en tiempo real para datos binarios codificados.

Country Status (9)

Country Link
US (1) US4502142A (es)
BE (1) BE897202A (es)
CH (1) CH655626B (es)
DE (1) DE3327250A1 (es)
ES (1) ES8405216A1 (es)
FR (1) FR2532772A1 (es)
GB (1) GB2126849B (es)
IT (2) IT1198653B (es)
NL (1) NL8302446A (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712217A (en) * 1985-12-20 1987-12-08 Network Equipment Technologies System for transmitting digital information and maintaining a minimum paulse density
US4853931A (en) * 1988-04-15 1989-08-01 Siemens Transmission Systems, Inc. Violating All Zero Octet (VAZO) detector for a zero byte time slot interchange (ZBTSI) encoder
FR2676320B1 (fr) * 1991-05-07 1994-04-29 Sextant Avionique Procede et dispositif de detection et de controle du gabarit de messages numeriques transmis a un dispositif de reception.
US5390195A (en) * 1992-04-03 1995-02-14 Ampex Corporation Miller-squared decoder with erasure flag output
DE10244066A1 (de) * 2002-09-06 2004-03-18 Volkswagen Ag Verfahren und Vorrichtung zur schnellen Erkennung von Übertragungsfehlern

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB971359A (es) * 1962-07-02
US3156893A (en) * 1962-08-17 1964-11-10 Rca Corp Self-referenced digital pm receiving system
US3405235A (en) * 1963-03-12 1968-10-08 Post Office Systems for transmitting code pulses having low cumulative displarity
US3524164A (en) * 1968-01-15 1970-08-11 Ibm Detection and error checking system for binary data
US3744023A (en) * 1971-05-17 1973-07-03 Storage Technology Corp Detection and correction of phase encoded data
US4027267A (en) * 1976-06-01 1977-05-31 International Business Machines Corporation Method of decoding data content of F2F and phase shift encoded data streams
US4122441A (en) * 1977-10-05 1978-10-24 Lockheed Electronics Company, Inc. Error detection and indication system for bi-phase encoded digital data
FR2432246A1 (fr) * 1978-07-26 1980-02-22 Cit Alcatel Procede et circuit de decodage d'un signal binaire code en cmi
US4309694A (en) * 1980-03-27 1982-01-05 Bell Telephone Laboratories, Incorporated Zero disparity coding system

Also Published As

Publication number Publication date
DE3327250A1 (de) 1984-03-08
FR2532772A1 (fr) 1984-03-09
IT8309484A1 (it) 1985-01-26
NL8302446A (nl) 1984-04-02
ES523862A0 (es) 1984-05-16
GB8317916D0 (en) 1983-08-03
BE897202A (fr) 1983-11-03
IT8309484A0 (it) 1983-07-26
US4502142A (en) 1985-02-26
CH655626B (es) 1986-04-30
GB2126849B (en) 1986-02-05
FR2532772B3 (es) 1985-02-15
GB2126849A (en) 1984-03-28
IT1198653B (it) 1988-12-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980102