IT1237577B - Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico. - Google Patents

Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico.

Info

Publication number
IT1237577B
IT1237577B IT04688689A IT4688689A IT1237577B IT 1237577 B IT1237577 B IT 1237577B IT 04688689 A IT04688689 A IT 04688689A IT 4688689 A IT4688689 A IT 4688689A IT 1237577 B IT1237577 B IT 1237577B
Authority
IT
Italy
Prior art keywords
filter circuit
television receiver
audio frequencies
intermediate audio
system television
Prior art date
Application number
IT04688689A
Other languages
English (en)
Other versions
IT8946886A0 (it
IT8946886A1 (it
Original Assignee
Gold Star Co
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 Gold Star Co filed Critical Gold Star Co
Publication of IT8946886A0 publication Critical patent/IT8946886A0/it
Publication of IT8946886A1 publication Critical patent/IT8946886A1/it
Application granted granted Critical
Publication of IT1237577B publication Critical patent/IT1237577B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • 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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Networks Using Active Elements (AREA)
IT04688689A 1988-11-22 1989-11-21 Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico. IT1237577B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR880018917 1988-11-22

Publications (3)

Publication Number Publication Date
IT8946886A0 IT8946886A0 (it) 1989-11-21
IT8946886A1 IT8946886A1 (it) 1991-05-21
IT1237577B true IT1237577B (it) 1993-06-08

Family

ID=19281519

Family Applications (2)

Application Number Title Priority Date Filing Date
IT34897U IT8934897V0 (it) 1988-11-22 1989-11-21 Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico
IT04688689A IT1237577B (it) 1988-11-22 1989-11-21 Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT34897U IT8934897V0 (it) 1988-11-22 1989-11-21 Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico

Country Status (6)

Country Link
DE (1) DE3938303A1 (it)
ES (1) ES2017569A6 (it)
GB (1) GB2225681B (it)
HU (1) HU206173B (it)
IT (2) IT8934897V0 (it)
RU (1) RU1833515C (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317220A1 (de) * 1993-05-24 1994-12-01 Thomson Brandt Gmbh Schaltung zur Tonnorm-Erkennung in einem Fernsehempfänger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858118A (en) * 1973-07-17 1974-12-31 Westinghouse Electric Corp Acoustic surface wave television tuner
FI63508C (fi) * 1981-02-11 1983-06-10 Salora Oy Koppling vid en televisionsmottagare foer detektering av ljudsignaler som saents enligt olika saendningsnormer
US4511924A (en) * 1982-10-29 1985-04-16 Rca Corporation Frequency translation phase-locked loop for separate or intercarrier type television sound detection
DE3509516C1 (de) * 1985-03-16 1986-09-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung der Eingangsstufen eines Fernsehtuners

Also Published As

Publication number Publication date
IT8946886A0 (it) 1989-11-21
GB8926168D0 (en) 1990-01-10
DE3938303C2 (it) 1992-12-24
RU1833515C (en) 1993-08-07
IT8946886A1 (it) 1991-05-21
HUT55179A (en) 1991-04-29
GB2225681A (en) 1990-06-06
HU895954D0 (en) 1990-02-28
DE3938303A1 (de) 1990-05-23
HU206173B (en) 1992-08-28
ES2017569A6 (es) 1991-02-16
GB2225681B (en) 1993-04-14
IT8934897V0 (it) 1989-11-21

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971129