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DE3225385A1 - Device for converting television standards having different video and/or sound modulation for use in television receivers - Google Patents

Device for converting television standards having different video and/or sound modulation for use in television receivers

Info

Publication number
DE3225385A1
DE3225385A1 DE19823225385 DE3225385A DE3225385A1 DE 3225385 A1 DE3225385 A1 DE 3225385A1 DE 19823225385 DE19823225385 DE 19823225385 DE 3225385 A DE3225385 A DE 3225385A DE 3225385 A1 DE3225385 A1 DE 3225385A1
Authority
DE
Germany
Prior art keywords
sound
television
intermediate frequency
modulation
receiver
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.)
Ceased
Application number
DE19823225385
Other languages
German (de)
Inventor
Carl-Albrecht Dipl.-Chem. 8640 Kronach Schiller
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.)
ZAHNER ELEKTRIK
Original Assignee
ZAHNER ELEKTRIK
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 ZAHNER ELEKTRIK filed Critical ZAHNER ELEKTRIK
Priority to DE19823225385 priority Critical patent/DE3225385A1/en
Publication of DE3225385A1 publication Critical patent/DE3225385A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)

Abstract

Published without abstract.

Description

Bezeichnung: Einrichtung zur Wandlung von Fernsehnormen mit unterschiedlicher Video und/oder Tonmodulation zum Einsatz in Fernsehempfangsgeräten.Designation: Device for the conversion of television standards with different Video and / or sound modulation for use in television receivers.

Beschreibung: Der Vorteil der erfindungsgemäßen Einrichtung gegenuber der allgemein gebräuchlichen Art nachrüstbarer Normwandler, die das Video- und/oder Tonsignal zur Anpassung an die empfängerinterne Norrn bearbeiten, besteht darin, daß nicht mehrere Eingriffe in die empfängerinternen Video- undroder Tonsignalwege und damit gekoppelte Regeistrecken notwendig sind wodurch, vorallem bei moderneren Fernsehgeräteschaltungen die ordnungsgemäße Verstärkungsregelung des Videotragersignales bewinde; t odergar unmöglich gemacht wird= Die erfindungsgemäße Einrichtung ermöglicht dagegen eine einfache Schnittstelle ohne Behinderung geräteinterner Regelstrecken, verbunden mit den Vorteilen einer problemlosen Anpassung und einen einfacheren, servicegerechten Einbau.Description: The advantage of the device according to the invention over the commonly used type of retrofittable standard converter that supports the video and / or Editing the audio signal to adapt it to the internal standard of the receiver consists of: that no multiple interventions in the receiver's internal video and audio signal paths and thus coupled rain routes are necessary, which, especially with more modern ones TV sets ensure the proper gain control of the video carrier signal wind; t or even impossible = the device according to the invention is made possible on the other hand, a simple interface without obstruction of device-internal controlled systems, combined with the advantages of a problem-free adaptation and a simpler, service-oriented installation.

Claims (1)

Bezeichnung: Einrichtung zur Wandlung von Fernsehnormen mit unterschiedlicher Yioeo- und/oder Tonmodulation zum Einsatz in Fernsehempfangsgeräten.Designation: Device for the conversion of television standards with different Yioeo and / or sound modulation for use in television receivers. Patentan: Einrichtung zur Wandlung von Fernsehnormen mit unterschiedlicher Video- und/oder Tonmodulation zum Einsatz in Fernsehempfangsge raten, dadurch gekennzeichnet, daß das Zwischenfrequenzsignal direkt nach dem Tuner des Empfangers entnommen, gewandelt und als der geräteinternen Norm entsprechendes Signal direkt an dessen Zwischenfrequennzteil weitergegeben wird.Patent to: Device for converting television standards with different Video and / or sound modulation for use in television reception equipment, characterized in that that the intermediate frequency signal taken directly after the tuner of the receiver, converted and as a signal corresponding to the device-internal standard directly to its intermediate frequency part is passed on. Die erfindungsgemäße Einrichtung ermöglicht den wahlweisen Empfang von Fernsehnormen unterschiedlicher Video- und/oder Tonmodulation, (z.B. 7'L-Norm" mit positiver Videomodujation und AM-Ton und "G-Norm" mit negativer Videomodulation und FM-Ton ) in der Art, daß aus dem tunerseitig entnommenen Zwischenfrequenzsignal, fur dessen korrekte Weiterverarbeitung der Empfänger nicht eingerichtet ist, die Trãgerfrequenz gewonnen, der in der erfindungsgemäßen Einrichtung demo dulierte Bild- und/oder Toninhalt des Zwischenirequenzsignales in die dem Empfänger entsprechende Form umgewandelt und der gewonnenen Trägerfrequenz wieder aufmoduliert wird um anschließend als ein, der Norm des Empfängers entsprechendes Zwischenfrequenzsignal an dessen Zwischenirequenzteil weitergegeben zu werden.The device according to the invention enables optional reception of television standards with different video and / or sound modulation, (e.g. 7'L standard " with positive video modulation and AM sound and "G-Norm" with negative video modulation and FM sound) in such a way that from the intermediate frequency signal taken by the tuner, the recipient is not set up for its correct further processing Won carrier frequency that demoed in the device according to the invention Image and / or sound content of the intermediate frequency signal into the one corresponding to the receiver Form converted and the obtained carrier frequency is modulated again afterwards as an intermediate frequency signal corresponding to the standard of the receiver at the receiver To be passed intermediate frequency part.
DE19823225385 1982-07-07 1982-07-07 Device for converting television standards having different video and/or sound modulation for use in television receivers Ceased DE3225385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823225385 DE3225385A1 (en) 1982-07-07 1982-07-07 Device for converting television standards having different video and/or sound modulation for use in television receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823225385 DE3225385A1 (en) 1982-07-07 1982-07-07 Device for converting television standards having different video and/or sound modulation for use in television receivers

Publications (1)

Publication Number Publication Date
DE3225385A1 true DE3225385A1 (en) 1984-01-12

Family

ID=6167855

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823225385 Ceased DE3225385A1 (en) 1982-07-07 1982-07-07 Device for converting television standards having different video and/or sound modulation for use in television receivers

Country Status (1)

Country Link
DE (1) DE3225385A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814874A (en) * 1987-03-31 1989-03-21 Kabushiki Kaisha Toshiba Intermediate-frequency processing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814874A (en) * 1987-03-31 1989-03-21 Kabushiki Kaisha Toshiba Intermediate-frequency processing circuit

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection