DE19818748C2 - Fernsehtuner - Google Patents

Fernsehtuner

Info

Publication number
DE19818748C2
DE19818748C2 DE19818748A DE19818748A DE19818748C2 DE 19818748 C2 DE19818748 C2 DE 19818748C2 DE 19818748 A DE19818748 A DE 19818748A DE 19818748 A DE19818748 A DE 19818748A DE 19818748 C2 DE19818748 C2 DE 19818748C2
Authority
DE
Germany
Prior art keywords
signal
uhf
frequency
vhf
television
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 - Lifetime
Application number
DE19818748A
Other languages
German (de)
English (en)
Other versions
DE19818748A1 (de
Inventor
Masaki Yamamoto
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of DE19818748A1 publication Critical patent/DE19818748A1/de
Application granted granted Critical
Publication of DE19818748C2 publication Critical patent/DE19818748C2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers
    • 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
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/13—Television receiver combined with a GPS receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Superheterodyne Receivers (AREA)
DE19818748A 1997-05-12 1998-04-27 Fernsehtuner Expired - Lifetime DE19818748C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12104497A JP3599951B2 (ja) 1997-05-12 1997-05-12 テレビジョンチュ−ナ

Publications (2)

Publication Number Publication Date
DE19818748A1 DE19818748A1 (de) 1998-11-19
DE19818748C2 true DE19818748C2 (de) 2003-09-18

Family

ID=14801441

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19818748A Expired - Lifetime DE19818748C2 (de) 1997-05-12 1998-04-27 Fernsehtuner

Country Status (3)

Country Link
JP (1) JP3599951B2 (ko)
KR (1) KR100299865B1 (ko)
DE (1) DE19818748C2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4795716B2 (ja) * 2005-05-06 2011-10-19 アルプス電気株式会社 地上デジタルテレビジョンチューナ
JP2007124290A (ja) * 2005-10-28 2007-05-17 Alps Electric Co Ltd デュアル型デジタルテレビジョンチューナ
KR20120133587A (ko) * 2011-05-31 2012-12-11 삼성전기주식회사 지상파 방송용 수신 모듈

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247953A (en) * 1977-07-01 1981-01-27 Hitachi, Ltd. Tunable high-frequency input circuit
US4340975A (en) * 1979-10-09 1982-07-20 Matsushita Electric Industrial Company, Limited Microwave mixing circuit and a VHF-UHF tuner having the mixing circuit
US4408348A (en) * 1981-08-19 1983-10-04 Rca Corporation Multiband tuning system for a television receiver
DE3606660A1 (de) * 1985-02-28 1986-08-28 Rca Corp., Princeton, N.J. Tv-eingangsfilter
US5010400A (en) * 1988-08-03 1991-04-23 Kabushiki Kaisha Toshiba Television tuner for receiving multiple band television signals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247953A (en) * 1977-07-01 1981-01-27 Hitachi, Ltd. Tunable high-frequency input circuit
US4340975A (en) * 1979-10-09 1982-07-20 Matsushita Electric Industrial Company, Limited Microwave mixing circuit and a VHF-UHF tuner having the mixing circuit
US4408348A (en) * 1981-08-19 1983-10-04 Rca Corporation Multiband tuning system for a television receiver
DE3606660A1 (de) * 1985-02-28 1986-08-28 Rca Corp., Princeton, N.J. Tv-eingangsfilter
US5010400A (en) * 1988-08-03 1991-04-23 Kabushiki Kaisha Toshiba Television tuner for receiving multiple band television signals

Also Published As

Publication number Publication date
KR100299865B1 (ko) 2001-10-27
DE19818748A1 (de) 1998-11-19
JP3599951B2 (ja) 2004-12-08
KR19980086910A (ko) 1998-12-05
JPH10313432A (ja) 1998-11-24

Similar Documents

Publication Publication Date Title
DE2828838C2 (de) HF-Eingangsschaltung für Fernsehempfänger
DE19650096C2 (de) Satellitenrundfunk-Empfangstuner
DE102004057241A1 (de) Doppelwandlungstuner
DE3811101C2 (ko)
DE19818748C2 (de) Fernsehtuner
DE2842309A1 (de) Fernsehsignalverarbeitungskreis
DE2746931A1 (de) Fernsehempfaenger-abstimmvorrichtung
EP1128552B1 (de) Schaltungsanordnung zur Filterung eines Hochfrequenzsignals
DE60037722T2 (de) AM Empfänger
DE10122748A1 (de) Anti-Demodulatorschaltung, Filtereinrichtung und Demodulatorschaltung
DE69918606T2 (de) Direktrundfunkübertragungssatellitenempfänger
DE3443859C2 (ko)
DE19509567A1 (de) Hochfrequenz-Empfangsstufe
DE4324603A1 (de) IF-Filteranorndung in einem Empfänger für FM-Empfangssignale
DE2413205A1 (de) Fernsehempfaengerschaltung
WO2000007297A1 (de) Antennenweiche
EP0678981A2 (de) Hochfrequenz-Empfangsstufe
DE2749933C3 (de) Automatischer Feinabstimmregler für einen Fernsehempfänger
EP0769850B1 (de) Hochfrequenz-Empfangsstufe
DE2747691A1 (de) Einrichtung zum bedarfsweisen abstimmen eines fernsehempfaengers
DE19639238C2 (de) Eingangsabstimmkreis für Fernsehgerät
DE19839857A1 (de) Rundfunkempfangsgerät
DE602004004619T2 (de) Zwischenfrequenzschaltung
DE3720400C1 (en) Audion circuit for radio time signal receivers
DE2907455A1 (de) Tuner

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8304 Grant after examination procedure
8364 No opposition during term of opposition
R082 Change of representative

Representative=s name: SCHMITT-NILSON SCHRAUD WAIBEL WOHLFROM PATENTA, DE

R071 Expiry of right