GB2225681B - Audio if filter circuit - Google Patents

Audio if filter circuit

Info

Publication number
GB2225681B
GB2225681B GB8926168A GB8926168A GB2225681B GB 2225681 B GB2225681 B GB 2225681B GB 8926168 A GB8926168 A GB 8926168A GB 8926168 A GB8926168 A GB 8926168A GB 2225681 B GB2225681 B GB 2225681B
Authority
GB
United Kingdom
Prior art keywords
audio
filter circuit
filter
circuit
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 - Fee Related
Application number
GB8926168A
Other languages
English (en)
Other versions
GB2225681A (en
GB8926168D0 (en
Inventor
Young Jun Lee
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.)
LG Electronics Inc
Original Assignee
Gold Star Co Ltd
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 Ltd filed Critical Gold Star Co Ltd
Publication of GB8926168D0 publication Critical patent/GB8926168D0/en
Publication of GB2225681A publication Critical patent/GB2225681A/en
Application granted granted Critical
Publication of GB2225681B publication Critical patent/GB2225681B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
GB8926168A 1988-11-22 1989-11-20 Audio if filter circuit Expired - Fee Related GB2225681B (en)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB8926168D0 GB8926168D0 (en) 1990-01-10
GB2225681A GB2225681A (en) 1990-06-06
GB2225681B true GB2225681B (en) 1993-04-14

Family

ID=19281519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8926168A Expired - Fee Related GB2225681B (en) 1988-11-22 1989-11-20 Audio if filter circuit

Country Status (6)

Country Link
DE (1) DE3938303A1 (enrdf_load_stackoverflow)
ES (1) ES2017569A6 (enrdf_load_stackoverflow)
GB (1) GB2225681B (enrdf_load_stackoverflow)
HU (1) HU206173B (enrdf_load_stackoverflow)
IT (2) IT1237577B (enrdf_load_stackoverflow)
RU (1) RU1833515C (enrdf_load_stackoverflow)

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

Citations (2)

* 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
EP0196130A2 (de) * 1985-03-16 1986-10-01 Philips Patentverwaltung GmbH Schaltungsanordnung der Eingangsstufen eines Fernsehtuners

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (3)

* 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
EP0196130A2 (de) * 1985-03-16 1986-10-01 Philips Patentverwaltung GmbH Schaltungsanordnung der Eingangsstufen eines Fernsehtuners
US4756024A (en) * 1985-03-16 1988-07-05 U.S. Philips Corporation RF-input circuit arrangement for a television tuner

Also Published As

Publication number Publication date
RU1833515C (en) 1993-08-07
DE3938303C2 (enrdf_load_stackoverflow) 1992-12-24
IT8934897V0 (it) 1989-11-21
GB2225681A (en) 1990-06-06
HUT55179A (en) 1991-04-29
DE3938303A1 (de) 1990-05-23
IT1237577B (it) 1993-06-08
GB8926168D0 (en) 1990-01-10
IT8946886A1 (it) 1991-05-21
HU895954D0 (en) 1990-02-28
IT8946886A0 (it) 1989-11-21
ES2017569A6 (es) 1991-02-16
HU206173B (en) 1992-08-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20071120