FR2321809A1 - Circuit compensateur de signaux defectueux notamment pour un systeme de restitution d'informations - Google Patents

Circuit compensateur de signaux defectueux notamment pour un systeme de restitution d'informations

Info

Publication number
FR2321809A1
FR2321809A1 FR7625207A FR7625207A FR2321809A1 FR 2321809 A1 FR2321809 A1 FR 2321809A1 FR 7625207 A FR7625207 A FR 7625207A FR 7625207 A FR7625207 A FR 7625207A FR 2321809 A1 FR2321809 A1 FR 2321809A1
Authority
FR
France
Prior art keywords
compensator circuit
signals especially
defective signals
restitution system
information
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
FR7625207A
Other languages
English (en)
Other versions
FR2321809B1 (fr
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Publication of FR2321809A1 publication Critical patent/FR2321809A1/fr
Application granted granted Critical
Publication of FR2321809B1 publication Critical patent/FR2321809B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/88—Signal drop-out compensation
    • H04N9/882—Signal drop-out compensation the signal being a composite colour television signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
FR7625207A 1975-08-21 1976-08-19 Circuit compensateur de signaux defectueux notamment pour un systeme de restitution d'informations Granted FR2321809A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/606,480 US4021852A (en) 1975-08-21 1975-08-21 Signal defect compensation

Publications (2)

Publication Number Publication Date
FR2321809A1 true FR2321809A1 (fr) 1977-03-18
FR2321809B1 FR2321809B1 (fr) 1982-05-07

Family

ID=24428151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625207A Granted FR2321809A1 (fr) 1975-08-21 1976-08-19 Circuit compensateur de signaux defectueux notamment pour un systeme de restitution d'informations

Country Status (5)

Country Link
US (1) US4021852A (fr)
JP (1) JPS5226811A (fr)
DE (1) DE2637642C3 (fr)
FR (1) FR2321809A1 (fr)
GB (1) GB1553518A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388361A1 (fr) * 1977-04-20 1978-11-17 Rca Corp Compensation de defauts dans des systemes audio-frequence
FR2422304A1 (fr) * 1978-04-07 1979-11-02 Sony Corp
FR2462076A1 (fr) * 1979-07-19 1981-02-06 Rca Corp Compensateur de la chute hors limites d'un signal video et procede de formation d'un signal de remplacement dans le cas d'une telle chute hors limites

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184178A (en) * 1972-11-30 1980-01-15 Basf Aktiengesellschaft Drop-out compensator for sound reproducing apparatus during tape reversal
GB1589476A (en) * 1976-11-15 1981-05-13 Rca Corp Dropout compensator circuit
JPS53114612A (en) * 1977-03-16 1978-10-06 Matsushita Electric Ind Co Ltd Compensating unit for color video signal defect
US4214259A (en) * 1978-04-07 1980-07-22 Recortec, Inc. Color video tape recorder/reproducer with chrome corrector
US4339770A (en) * 1979-11-19 1982-07-13 Rca Corporation Synchronizing system with chroma parity detection
JPS5715207A (en) * 1980-07-03 1982-01-26 Victor Co Of Japan Ltd Frequency-characteristic correction device of rotary information recording medium reproducing device
CA1157939A (fr) * 1980-07-14 1983-11-29 Yoshizumi Watatani Circuit eliminateur de bruit pour appareil d'enregistrement et de lecture magnetiques
US4376289A (en) * 1980-10-27 1983-03-08 Rca Corporation Self-enabling dropout corrector
US4327431A (en) * 1980-11-07 1982-04-27 Rca Corporation Video disc player with variable offset RFI reduction circuit
US4327432A (en) * 1980-11-07 1982-04-27 Rca Corporation Video disc player with RFI reduction circuit
US4361881A (en) * 1980-11-21 1982-11-30 Rca Corporation Video disc player with RFI reduction circuit including signal subtraction
US4364119A (en) * 1980-11-21 1982-12-14 Rca Corporation Video disc player with RFI reduction circuit including a signal product generator
JPS58179909A (ja) * 1983-03-04 1983-10-21 Hitachi Ltd 磁気記録再生装置
US4692914A (en) * 1983-05-31 1987-09-08 Canon Kabushiki Kaisha Reproducing device for frequency modulated signals
JPS6329362A (ja) * 1986-07-22 1988-02-08 Hitachi Ltd 映像信号再生装置の時間軸変動補正回路
CA1316594C (fr) * 1986-10-28 1993-04-20 Tatsuo Yamasaki Appareil d'enregistrement et de lecture de signaux video
US5247363A (en) * 1992-03-02 1993-09-21 Rca Thomson Licensing Corporation Error concealment apparatus for hdtv receivers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156053A (en) * 1965-06-23 1969-06-25 Ampex Improvements in Apparatus for Reproducing Television Signals from Magnetic Tape.
US3798364A (en) * 1970-12-11 1974-03-19 Sony Corp Video signal reproducing system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996576A (en) * 1959-02-20 1961-08-15 Ampex Video system with transient and dropout compensation
DE1462568B1 (de) * 1966-09-17 1971-01-07 Fernseh Gmbh Schaltungsanordnung in Anlagen zur magnetischen Aufzeichnung von Videosignalen
DE1939682A1 (de) * 1969-08-05 1971-03-04 Fernseh Gmbh Verfahren und Vorrichtung zur Austastung von Stoerimpulsen
NL7310869A (nl) * 1973-08-07 1975-02-11 Philips Nv Inrichting voor het weergeven van een op een registratiedrager opgetekend videosignaal.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156053A (en) * 1965-06-23 1969-06-25 Ampex Improvements in Apparatus for Reproducing Television Signals from Magnetic Tape.
US3798364A (en) * 1970-12-11 1974-03-19 Sony Corp Video signal reproducing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388361A1 (fr) * 1977-04-20 1978-11-17 Rca Corp Compensation de defauts dans des systemes audio-frequence
FR2422304A1 (fr) * 1978-04-07 1979-11-02 Sony Corp
FR2462076A1 (fr) * 1979-07-19 1981-02-06 Rca Corp Compensateur de la chute hors limites d'un signal video et procede de formation d'un signal de remplacement dans le cas d'une telle chute hors limites

Also Published As

Publication number Publication date
US4021852A (en) 1977-05-03
DE2637642C3 (de) 1978-07-27
DE2637642B2 (de) 1977-12-08
DE2637642A1 (de) 1977-02-24
JPS5226811A (en) 1977-02-28
JPS5415489B2 (fr) 1979-06-15
GB1553518A (en) 1979-09-26
FR2321809B1 (fr) 1982-05-07

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