FR2411444A1 - Dispositif de detection d'informations - Google Patents

Dispositif de detection d'informations

Info

Publication number
FR2411444A1
FR2411444A1 FR7737290A FR7737290A FR2411444A1 FR 2411444 A1 FR2411444 A1 FR 2411444A1 FR 7737290 A FR7737290 A FR 7737290A FR 7737290 A FR7737290 A FR 7737290A FR 2411444 A1 FR2411444 A1 FR 2411444A1
Authority
FR
France
Prior art keywords
detection device
integration
integrator
capacitive
information detection
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
FR7737290A
Other languages
English (en)
Other versions
FR2411444B1 (fr
Inventor
Christian Maury
Jean-Claude Lamare
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.)
Bull SA
Original Assignee
Bull SA
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 Bull SA filed Critical Bull SA
Priority to FR7737290A priority Critical patent/FR2411444A1/fr
Priority to US05/964,724 priority patent/US4281291A/en
Priority to IT30568/78A priority patent/IT1160308B/it
Priority to NL7811991A priority patent/NL7811991A/xx
Priority to JP15277578A priority patent/JPS5489712A/ja
Priority to DE19782853617 priority patent/DE2853617A1/de
Priority to GB7848155A priority patent/GB2014400B/en
Publication of FR2411444A1 publication Critical patent/FR2411444A1/fr
Application granted granted Critical
Publication of FR2411444B1 publication Critical patent/FR2411444B1/fr
Granted 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
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
    • 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
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

DISPOSITIF DE DETECTION D'INFORMATIONS COMPRENANT UN CIRCUIT D'HORLOGE, UN DISPOSITIF DE TRANSPOSITION DE NIVEAU, UN DISPOSITIF D'INTEGRATION ET UN CIRCUIT DE DECISION. SELON L'INVENTION LE DISPOSITIF DE DETECTION EST CARACTERISE EN CE QUE LE DISPOSITIF D'INTEGRATION COMPREND AU MOINS UN INTEGRATEUR QUI COMPORTE UN ELEMENT D'INTEGRATION CAPACITIF, UN DISPOSITIF DE COMMANDE DE L'INTEGRATEUR RECEVANT LE SIGNAL DEI ET COMMANDANT LE SENS DU COURANT DE CHARGE DE L'ELEMENT CAPACITIF ET LE TEMPS PENDANT LEQUEL IL Y CIRCULE, UN CIRCUIT POUR REMETTRE A ZERO L'INTEGRATEUR ET UN GENERATEUR FOURNISSANT A L'ELEMENT D'INTEGRATION CAPACITIF UN COURANT DE CHARGE PROPORTIONNEL A LA FREQUENCE F. APPLICABLE AUX PERIPHERIQUES MAGNETIQUES DE SYSTEME DE TRAITEMENT DE L'INFORMATION.
FR7737290A 1977-12-12 1977-12-12 Dispositif de detection d'informations Granted FR2411444A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7737290A FR2411444A1 (fr) 1977-12-12 1977-12-12 Dispositif de detection d'informations
US05/964,724 US4281291A (en) 1977-12-12 1978-11-29 Arrangement for detecting the binary values of bit cells having center transitions subject to phase distortion
IT30568/78A IT1160308B (it) 1977-12-12 1978-12-06 Dispositivo di rivelazione di informazioni
NL7811991A NL7811991A (nl) 1977-12-12 1978-12-08 Inrichting voor het detecteren van informatie.
JP15277578A JPS5489712A (en) 1977-12-12 1978-12-12 Data detector
DE19782853617 DE2853617A1 (de) 1977-12-12 1978-12-12 Einrichtung zum abtasten einer signalfolge
GB7848155A GB2014400B (en) 1977-12-12 1978-12-12 Arrangement for detecting data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7737290A FR2411444A1 (fr) 1977-12-12 1977-12-12 Dispositif de detection d'informations

Publications (2)

Publication Number Publication Date
FR2411444A1 true FR2411444A1 (fr) 1979-07-06
FR2411444B1 FR2411444B1 (fr) 1980-10-31

Family

ID=9198715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737290A Granted FR2411444A1 (fr) 1977-12-12 1977-12-12 Dispositif de detection d'informations

Country Status (7)

Country Link
US (1) US4281291A (fr)
JP (1) JPS5489712A (fr)
DE (1) DE2853617A1 (fr)
FR (1) FR2411444A1 (fr)
GB (1) GB2014400B (fr)
IT (1) IT1160308B (fr)
NL (1) NL7811991A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042964A (ja) * 1983-08-19 1985-03-07 Futaba Corp 符号再生装置
DE3533454A1 (de) * 1985-09-19 1987-03-26 Tandberg Data Verfahren und anordnung zur aufzeichnung und wiedergabe von daten
US6504750B1 (en) * 2001-08-27 2003-01-07 Micron Technology, Inc. Resistive memory element sensing using averaging
US6826102B2 (en) * 2002-05-16 2004-11-30 Micron Technology, Inc. Noise resistant small signal sensing circuit for a memory device
US6813208B2 (en) 2002-07-09 2004-11-02 Micron Technology, Inc. System and method for sensing data stored in a resistive memory element using one bit of a digital count

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699554A (en) * 1970-07-02 1972-10-17 Honeywell Inf Systems Method and apparatus for detecting binary data by integrated signal polarity comparison
US3744023A (en) * 1971-05-17 1973-07-03 Storage Technology Corp Detection and correction of phase encoded data
US3864583A (en) * 1971-11-11 1975-02-04 Ibm Detection of digital data using integration techniques
US3818501A (en) * 1971-11-11 1974-06-18 Ibm Detection of digital data using integration techniques
US3789207A (en) * 1972-09-22 1974-01-29 Honeywell Inf Systems Integrating circuit for data recovery system
US3877027A (en) * 1974-01-23 1975-04-08 Ibm Data demodulation employing integration techniques
FR2408891A1 (fr) * 1977-11-14 1979-06-08 Cii Honeywell Bull Dispositif d'integration d'une suite de signaux electriques

Also Published As

Publication number Publication date
GB2014400A (en) 1979-08-22
DE2853617C2 (fr) 1989-03-23
IT1160308B (it) 1987-03-11
IT7830568A0 (it) 1978-12-06
US4281291A (en) 1981-07-28
DE2853617A1 (de) 1979-06-13
GB2014400B (en) 1982-05-12
JPH0118513B2 (fr) 1989-04-06
JPS5489712A (en) 1979-07-17
FR2411444B1 (fr) 1980-10-31
NL7811991A (nl) 1979-06-14

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Legal Events

Date Code Title Description
ST Notification of lapse