FI63645C - Blandarfoerspaenningskrets foer varaktortelevisionsmottagare - Google Patents

Blandarfoerspaenningskrets foer varaktortelevisionsmottagare Download PDF

Info

Publication number
FI63645C
FI63645C FI762357A FI762357A FI63645C FI 63645 C FI63645 C FI 63645C FI 762357 A FI762357 A FI 762357A FI 762357 A FI762357 A FI 762357A FI 63645 C FI63645 C FI 63645C
Authority
FI
Finland
Prior art keywords
signals
oscillator
mixer
voltage
tuning
Prior art date
Application number
FI762357A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI762357A (fr
FI63645B (fi
Inventor
George William Carter
Original Assignee
Rca Corp
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 Rca Corp filed Critical Rca Corp
Publication of FI762357A publication Critical patent/FI762357A/fi
Publication of FI63645B publication Critical patent/FI63645B/fi
Application granted granted Critical
Publication of FI63645C publication Critical patent/FI63645C/fi

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00Discontinuous 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
    • H03J5/24Discontinuous 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
    • H03J5/242Discontinuous 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
    • H03J5/244Discontinuous 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • H03D7/125Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes with field effect transistors
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00Discontinuous 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
    • H03J5/02Discontinuous 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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0218Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/26Circuits for superheterodyne receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Superheterodyne Receivers (AREA)
FI762357A 1975-08-25 1976-08-18 Blandarfoerspaenningskrets foer varaktortelevisionsmottagare FI63645C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60769875A 1975-08-25 1975-08-25
US60769875 1975-08-25

Publications (3)

Publication Number Publication Date
FI762357A FI762357A (fr) 1977-02-26
FI63645B FI63645B (fi) 1983-03-31
FI63645C true FI63645C (fi) 1983-07-11

Family

ID=24433332

Family Applications (1)

Application Number Title Priority Date Filing Date
FI762357A FI63645C (fi) 1975-08-25 1976-08-18 Blandarfoerspaenningskrets foer varaktortelevisionsmottagare

Country Status (15)

Country Link
JP (1) JPS591011B2 (fr)
AT (1) AT371651B (fr)
AU (1) AU507375B2 (fr)
BE (1) BE845467A (fr)
DE (1) DE2638310C3 (fr)
DK (1) DK380976A (fr)
ES (1) ES450963A1 (fr)
FI (1) FI63645C (fr)
FR (1) FR2322481A1 (fr)
GB (1) GB1553869A (fr)
IT (1) IT1067991B (fr)
NL (1) NL7609401A (fr)
PL (1) PL108050B1 (fr)
SE (1) SE405667B (fr)
ZA (1) ZA764974B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401863C2 (de) * 1984-01-20 1986-01-30 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Bandabhängig schaltbare VHF-Mischerschaltungsanordnung
JPH0630401Y2 (ja) * 1990-06-01 1994-08-17 橋本電機工業株式会社 ベニヤテンダーライザー

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970254A (en) * 1974-08-19 1976-07-20 Black Clawson Fibreclaim, Inc. Method for separating glass from heat resistant materials
US3976944A (en) * 1975-02-13 1976-08-24 General Electric Company Bias optimized FET mixer for varactor tuner

Also Published As

Publication number Publication date
DK380976A (da) 1977-02-26
AU507375B2 (en) 1980-02-14
PL108050B1 (pl) 1980-03-31
BE845467A (fr) 1976-12-16
FI762357A (fr) 1977-02-26
JPS5227206A (en) 1977-03-01
FR2322481B1 (fr) 1980-05-30
FI63645B (fi) 1983-03-31
FR2322481A1 (fr) 1977-03-25
DE2638310B2 (de) 1978-01-05
SE405667B (sv) 1978-12-18
AU1695976A (en) 1978-02-23
IT1067991B (it) 1985-03-21
ES450963A1 (es) 1977-08-16
JPS591011B2 (ja) 1984-01-10
ATA630276A (de) 1982-11-15
AT371651B (de) 1983-07-25
GB1553869A (en) 1979-10-10
NL7609401A (nl) 1977-03-01
DE2638310C3 (de) 1981-11-05
SE7609198L (sv) 1977-02-26
ZA764974B (en) 1977-07-27
DE2638310A1 (de) 1977-03-03

Similar Documents

Publication Publication Date Title
US4520507A (en) Low noise CATV converter
US20100149431A1 (en) Active Inductor Circuits for Filtering in a Cable Tuner Circuit
FI64257C (fi) Reglerad oskillator
KR920009487B1 (ko) 다중 대역 동조 시스템
US4160213A (en) Mixer injection voltage compensation circuit
US4442548A (en) Television receiver tuning circuit tunable over a wide frequency range
FI63645C (fi) Blandarfoerspaenningskrets foer varaktortelevisionsmottagare
US3742130A (en) Television receiver incorporating synchronous detection
CA1295757C (fr) Syntoniseur a fet
US4005256A (en) AFC circuit
US4996599A (en) Television tuner oscillator with three point tracking
CA1078023A (fr) Melangeur fet a polarisation optimisee pour syntonisateur a varactor
US4658437A (en) Tuning voltage tracking arrangement
US3488595A (en) Electrical apparatus which exhibits a relatively constant tunable bandwidth
JPH0669829A (ja) Ic化受信装置
US4380827A (en) Oscillator for television tuner
KR820000706B1 (ko) 텔레비젼 수상기의 동조기
US3624512A (en) Automatic frequency control system
KR960012795B1 (ko) 트랜지스터 믹서
US3459887A (en) Automatic frequency control system
US4558289A (en) Bias and AGC control of two RF amplifiers with a shared control element
KR930004655Y1 (ko) 수신 장치
CA1201776A (fr) Amplificateur rf uhf et systeme cag
JPS6115660Y2 (fr)
KR950001646Y1 (ko) 영상중간주파수신호 정동조회로

Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: RCA CORPORATION