ES474595A1 - Medium frequency TV signal demodulator - has two series impedances, one frequency dependent, across demodulator output - Google Patents

Medium frequency TV signal demodulator - has two series impedances, one frequency dependent, across demodulator output

Info

Publication number
ES474595A1
ES474595A1 ES474595A ES474595A ES474595A1 ES 474595 A1 ES474595 A1 ES 474595A1 ES 474595 A ES474595 A ES 474595A ES 474595 A ES474595 A ES 474595A ES 474595 A1 ES474595 A1 ES 474595A1
Authority
ES
Spain
Prior art keywords
demodulator
signal
frequency
impedances
output
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
ES474595A
Other languages
Spanish (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.)
Nokia Spain SA
Original Assignee
Alcatel Espana 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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES474595A1 publication Critical patent/ES474595A1/en
Expired 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
    • H04N5/455—Demodulation-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters And Equalizers (AREA)

Abstract

The television signal demodulating circuit has a two output demodulator. The outputs are connected in phase opposition and are in integrated circuit form. The outputs (19, 20) are connected by a series arrangement including two impedances (Z1, Z2). An output signal (Uo) is tapped from one of the connection points (27) of the series arrangement. This point of connection (27) is connection to a reference potential of the signal by means of a supplementary impedance (Z1 Rm). One of the impedances (Z1, Z2) is frequency dependant. The impedances are calculated so that the out signal (Uo) is at least approximate to predetermined frequencies.
ES474595A 1977-10-28 1978-10-27 Medium frequency TV signal demodulator - has two series impedances, one frequency dependent, across demodulator output Expired ES474595A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772748418 DE2748418C2 (en) 1977-10-28 1977-10-28 Circuit arrangement for demodulating an intermediate frequency television signal

Publications (1)

Publication Number Publication Date
ES474595A1 true ES474595A1 (en) 1979-03-16

Family

ID=6022527

Family Applications (1)

Application Number Title Priority Date Filing Date
ES474595A Expired ES474595A1 (en) 1977-10-28 1978-10-27 Medium frequency TV signal demodulator - has two series impedances, one frequency dependent, across demodulator output

Country Status (4)

Country Link
BE (1) BE871643A (en)
BR (1) BR7806963A (en)
DE (1) DE2748418C2 (en)
ES (1) ES474595A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807036A (en) * 1986-07-18 1989-02-21 Tdk Corporation Complex circuit component for a video signal circuit in a television receiver set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053376A1 (en) * 1970-10-30 1972-05-04 Sel Circuit arrangement for demodulating a television signal

Also Published As

Publication number Publication date
DE2748418C2 (en) 1981-10-08
DE2748418A1 (en) 1979-05-03
BE871643A (en) 1979-04-30
BR7806963A (en) 1979-05-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990201