KR840004640A - Tuning System for Multiband TV Receivers - Google Patents

Tuning System for Multiband TV Receivers Download PDF

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Publication number
KR840004640A
KR840004640A KR1019830001278A KR830001278A KR840004640A KR 840004640 A KR840004640 A KR 840004640A KR 1019830001278 A KR1019830001278 A KR 1019830001278A KR 830001278 A KR830001278 A KR 830001278A KR 840004640 A KR840004640 A KR 840004640A
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South Korea
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signal
tuning
tuning system
capacitance
resistor
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KR1019830001278A
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Korean (ko)
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KR920002761B1 (en
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마이클 에반스 로버트 (외 1)
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글렌 에이취. 브르스틀
알 씨 에이 코포레이션
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Priority claimed from US06/363,567 external-priority patent/US4418427A/en
Priority claimed from US06/363,570 external-priority patent/US4418428A/en
Application filed by 글렌 에이취. 브르스틀, 알 씨 에이 코포레이션 filed Critical 글렌 에이취. 브르스틀
Publication of KR840004640A publication Critical patent/KR840004640A/en
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Publication of KR920002761B1 publication Critical patent/KR920002761B1/en

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    • 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
    • H04N5/50Tuning indicators; Automatic tuning control
    • 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
    • H03J5/246Discontinuous 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 using electronic means

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

내용 없음No content

Description

다중대역 텔레비젼 수신기용 동조시스템Tuning System for Multiband TV Receivers

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 구성에 있어서, 블럭도를 나타낸 동조시스템의 개요도.1 is a schematic diagram of a tuning system showing a block diagram in the configuration of the present invention;

제2도는 제1도의 구성에 따른 진폭변화대 주파수특성에 대한 그래프식 설명.2 is a graphical representation of the amplitude change versus frequency characteristics according to the configuration of FIG.

제3도, 제4도는 본 발명의 구성에 있어서, 제1도의 동조시스템에서 사용되는 회로의 개요도.3 and 4 are schematic diagrams of circuits used in the tuning system of FIG. 1 in the configuration of the present invention.

Claims (11)

텔레비젼 수신기용 동조시스템은, 제1, 제2 주파수 대역 각각에 대응하는 라디오주파수 신호를 수신하고, 동조신호(VT)에 응답하여 변하는 주파수선택특성을 갖는 제1, 제2신호선로(12,14,16,32,34,36,38,40,42,44,46)와 제1, 제2주파수 대역내에 한개의 라디오 주파수 신호를 선택하기 위한 동조신호(VT)를 발생시키고, 선택된 라디오 주파수신호를 갖는 제1, 제2주파수 대역중 한개를 표시하는 대역신호(VB1, VB2, VB3, VB12)를 발생시키기 위한 동조제어 수단(70)과, 동조신호(VT)를 제1, 제2 신호선로에 인가 시키기 위한 수단(14C, R406)을 구비하며, 제1신호선로(12,14,16)에 연결되어, 선택된 라디오 주파수 신호가 제2주파수 대역내에 존재할 때 제1신호선로(12,14,16)에 인가된 등조신호(VT)를 변형시키기 위해 대역신호에 응답하는 수단(15,14D)를 특징으로 하는 텔레비젼 수신기용 동조시스템.The tuning system for a television receiver receives radio frequency signals corresponding to each of the first and second frequency bands, and has first and second signal lines 12 and 14 having a frequency selection characteristic that changes in response to the tuning signal VT. And 16, 32, 34, 36, 38, 40, 42, 44, 46 and a tuning signal (VT) for selecting one radio frequency signal in the first and second frequency bands, A tuning control unit 70 for generating band signals VB1, VB2, VB3, and VB12 indicating one of the first and second frequency bands having the first and second frequency bands, and the first and second signal lines Means 14C, R406 for application to the first signal line 12, 14, 16, connected to the first signal line 12, 14, 16, when the selected radio frequency signal is within the second frequency band. For television receivers characterized by means (15,14D) for responding to a band signal for modifying the equipotential signal (VT) applied to 16). Joe systems. 제1항의 동조시스템에 있어서, 제1신호선로(12,14,16)는 동조신호(VT)가 인가되는 가변 캐패시턴스 다이오드(C D24, C D44)를 갖는 필터(14)를 갖고, 인가용수단(14C)은 저항(R406)을 통해 동조신호(VT)를 캐패시턴스 다이오드(CD42, CD44)에 인가시키며, 변형수단은 대역신호(V B12)에 응답하는 전위를 변화시키기 위하여 저항(R406)과 캐패시턴스 다아오드(C D42, C D44)사이의 회로(R402, R404,140)접합점에 연결된 수단(14D)를 갖는 것을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system of claim 1, the first signal lines (12, 14, 16) have a filter (14) having variable capacitance diodes (C D24, C D44) to which the tuning signal (VT) is applied, and means for applying. 14C applies the tuning signal VT to the capacitance diodes CD42 and CD44 through the resistor R406, and the modifying means changes the potential in response to the band signal V B12 and the capacitance R406 and capacitance. And a means (14D) connected to a circuit (R402, R404, 140) junction between diodes (C D42, C D44). 제2의 동조시스템에 있어서, 전위를 변화시키기 위한 수단(15)은, 대역신호(V B12)에 응답하는 전위원(접지점△)에 연결선을 선택적으로 용량성으로 만들기 위한 스위치장치(TS)를 갖는다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the second tuning system, the means for changing the potential 15 includes a switch device TS for selectively capacitively connecting the connection line to the front panel (ground point?) In response to the band signal V B12. A tuning system for a television receiver, characterized in that it has. 제3항의 동조시스템에 있어서, 스위치수단(TS)은 회로점(14D)에 연결된 출력 일렉트로드(electrode T S 콜렉터), 전위원(접지점 △)에 연결된 공통 일렉트로드(T S 에미터), 이 트랜지스터의 출력 일렉트로드 공통일렉트로드 사이를 용량성으로 만드는 대역신호(V B12)에 인가된 입력 일렉트로드(T S 베이스)를 구비한 틀랜지스터(T S)를 갖는다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system of claim 3, the switch means TS comprises an output electrode (electrode TS collector) connected to the circuit point (14D), a common electrode (TS emitter) connected to the front panel (ground point Δ), the transistor Output Electrode Tuning system for television receivers, characterized in that it has a transistor (TS) having an input electroload (TS base) applied to a band signal (V B12) which makes the capacitive between common electroloads. . 제1항의 동조시스템에 있어서, 제1신호선로(12,14,16)는 동조신호가 인가되는 제1, 제2 가변캐패시턴스 다이오드(CD42, CD44)를 포함하는 각각의 제1, 제2공진회로를 갖는 필터(14)를 갖고 인가용수단(14C, R406)은 한개의 저항(R406)을 통해 동조신호(VT)를 제1, 제2 캐패시턴스 다이오드(CD42, CD44)에 인가시키며, 변형장치(15,14D)는 전위를 변화시키기 위하여 저항(R406)과 제1, 제2캐패시턴스 다이오드(CD42, CD44) 사이의 회로점(R402, R404 14D 접합)에 연결된 수단을 갖는 것을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system of claim 1, each of the first and second resonant circuits includes first and second variable capacitance diodes CD42 and CD44 to which a tuning signal is applied. Has a filter 14 and the application means 14C and R406 apply the tuning signal VT to the first and second capacitance diodes CD42 and CD44 through one resistor R406, 15 and 14D have means connected to circuit points R402 and R404 14D junctions between resistor R406 and first and second capacitance diodes CD42 and CD44 to change the potential. Tuning system. 제5항의 동조시스템에 있어서, 변형수단(15, 14D)이 갖은 의미를 갖는, 제1, 제2캐패시턴스에서의 각 전위를 변화시킨다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.The tuning system for a television receiver according to claim 5, characterized in that the shifting means (15, 14D) change the respective potentials at the first and second capacitances, which have meanings. 제1항의 동조시스템에 있어서, 제1신호선로(12,14,16)는 동조신호가 인가된 제1, 제2가변캐패시턴스다이오드(CD42, CD44)를 포함하는 각각의 제1, 제2 공진회로(L406, L408, L410, C404, CD42, CD44)를갖고, 인가용수단(14C, R406)은 한개의 수단(R406)을 통해 동조신호(WT)를 제1 캐패시턴스다이오드(CD42, CD44)에 인가시키며, 변형수단(15,14D)은 전위를 변화시키기 위해, 저항(R406)과 제1 캐패시턴스 다이오드(CD44) 사이의 회로점(R404, CD44)에 연결된 제1 장치(15, 14E)와, 회로점에서의 전위변화에 대한 반대방향으로 제2 캐패시턴스 다이오드(CD42)에 인가된 동조신호를 변화시키기 위한 대역신호(V B12)에 응답하는 제2 장치(D420, R42014F)를 갖는 것을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system of claim 1, the first signal lines 12, 14, and 16 each comprise first and second resonant capacitance diodes CD42, CD44 to which a tuning signal is applied. (L406, L408, L410, C404, CD42, CD44), the applying means 14C, R406 apply the tuning signal WT to the first capacitance diodes CD42, CD44 through one means R406. The deforming means (15, 14D), the first device (15, 14E) connected to the circuit point (R404, CD44) between the resistor (R406) and the first capacitance diode (CD44) to change the potential, and the circuit And a second device (D420, R42014F) responsive to the band signal (V B12) for changing the tuning signal applied to the second capacitance diode (CD42) in a direction opposite to the potential change at the point. Tuning system for receiver. 제7항의 동조시스템에 있어서, 동조신호(VT)를 변화시키기 위한 제2 수단(D420, R420, 14F)이, 대역신호(VT)을 제2 캐패시턴스 다이오드(V B 12)에 연결시키는 다이오드(CD42)와 저항(D420)을 갖는 제2 캐패시턴스 다이오드(R420)에 인가된다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.The tuning system of claim 7, wherein the second means (D420, R420, 14F) for changing the tuning signal (VT) connects the band signal (VT) to the second capacitance diode (VB 12). And a second capacitance diode (R420) having a resistance (D420). 제1항의 동조시스템에 있어서, 제1 신호선로(12,14,16)는 동조신호(VT)가 인가된 제1, 제2 가변캐패시턴스(CD42, CD44)를 포함하는 각각의 제1, 제2 동조회로(L406, L408, L410, C404, CD42, CD44)를 갖고, 인가용수단(24C, R406)는 제1저항(R404)을 통해 동조신호를 제1캐패시턴스 다이오드(CD44)에 인가시키며, 제2저항(R402)을 통해 동조신호를 제1, 제2 캐패시턴스 다이오드(CD42)에 인가시키며, 변형수단(15, 14D, 14E)은 전위를 변화시키기 위해, 제1 저항(R404)과 제1캐패시턴스다이오드(CD44) 사이의 회로점(R404, CD42 접합)에 연결된 제1 수단(14E)을 갖는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system of claim 1, each of the first and second signal lines 12, 14, and 16 includes first and second variable capacitances CD42 and CD44 to which a tuning signal VT is applied. Having tuning circuits L406, L408, L410, C404, CD42, CD44, and applying means 24C and R406 apply the tuning signal to the first capacitance diode CD44 through the first resistor R404, The tuning signal is applied to the first and second capacitance diodes CD42 through the second resistor R402, and the modifying means 15, 14D, and 14E are used to change the potential, and thus the first resistor R404 and the first resistor R404. And a first means (14E) connected to a circuit point (R404, CD42 junction) between the capacitance diodes (CD44). 제7항이나 제9항의 동조시스템에 있어서, 전위변화를 위한 제1 수단(15, 14E)은 대역신호(VB12)에 응답하며 전위원(접지점△)에 대한 연결선을 선택적으로 용량성으로 만들기 위한 스위치수단(TS)를 갖는다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템.In the tuning system according to claim 7 or 9, the first means for changing the potential (15, 14E) is responsive to the band signal (VB12) and for selectively making the connection line to the front panel (ground point Δ) capacitive. A tuning system for a television receiver, characterized by having a switch means (TS). 제10항의 동조 시스템에 있어서, 스위치수단(T S)은 회로점(15, 14E)에 연결된 출력 일랙트로드(TS 콜렉터), 전위원(접지점)에 연결된 공통 일렉트로드(TS 에미터), 이 트랜지스터의 출력 일랙트로드와 공통 일랙트로드 사이를 용량성으로 하기위해 대역신호(VB12)가 인가된(R410) 입력 일렉트로드(TS 베이스)를 구비한 트랜지스터(TS)를 갖는다는 점을 특징으로 하는 텔레비젼 수신기용 동조시스템In the tuning system of claim 10, the switch means TS comprises: an output electret load (TS collector) connected to circuit points 15 and 14E, a common electret load (TS emitter) connected to a front panel (ground point), the transistor; Characterized in that it has a transistor (TS) having an input elector (TS base) to which the band signal (VB12) is applied (R410) in order to be capacitive between the output electret load and the common electret load. Tuning System for Television Receiver ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830001278A 1982-03-30 1983-03-29 Tuning system for a multiband tv receiver KR920002761B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/363,567 US4418427A (en) 1982-03-30 1982-03-30 Tuning system for a multi-band television receiver
US363,570 1982-03-30
US06/363,570 US4418428A (en) 1982-03-30 1982-03-30 Tuning system for a multi-band television receiver
US363570 1982-03-30
US363,567 1982-03-30
US363567 1982-03-30

Publications (2)

Publication Number Publication Date
KR840004640A true KR840004640A (en) 1984-10-22
KR920002761B1 KR920002761B1 (en) 1992-04-02

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Application Number Title Priority Date Filing Date
KR1019830001278A KR920002761B1 (en) 1982-03-30 1983-03-29 Tuning system for a multiband tv receiver

Country Status (8)

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KR (1) KR920002761B1 (en)
AT (1) AT386309B (en)
DE (1) DE3311640A1 (en)
FI (1) FI75962C (en)
FR (1) FR2530907B1 (en)
GB (1) GB2117588B (en)
HK (1) HK54389A (en)
IT (1) IT1175304B (en)

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US4598423A (en) * 1985-02-28 1986-07-01 Rca Corporation Tuning circuit for a multiband tuner
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US6043721A (en) * 1998-02-04 2000-03-28 Motorola, Inc. Dual band amplifier
US6134452A (en) * 1998-11-23 2000-10-17 Motorola, Inc. Multiple band mixer with common local oscillator
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JP2002118795A (en) * 2000-10-05 2002-04-19 Alps Electric Co Ltd Television signal reception tuner
GB0122983D0 (en) 2001-09-25 2001-11-14 Zarlink Semiconductor Ltd Rdio fequency tuner front end and tuner

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DE1297171B (en) * 1967-10-28 1969-06-12 Marcus Elektronik Gmbh Tuning device for high-frequency electrical oscillations in the UHF and VHF range
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US4189678A (en) * 1977-08-18 1980-02-19 Sanyo Electric Co., Ltd. Combination VHF-UHF tuner for use in a television receiver
JPS6038063B2 (en) * 1978-05-29 1985-08-29 株式会社日立製作所 TV tuner circuit
JPS6017276B2 (en) * 1979-07-02 1985-05-01 松下電器産業株式会社 multi-format television receiver
US4408348A (en) * 1981-08-19 1983-10-04 Rca Corporation Multiband tuning system for a television receiver

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DE3311640C2 (en) 1990-03-22
FR2530907A1 (en) 1984-01-27
GB8308098D0 (en) 1983-05-05
FR2530907B1 (en) 1992-02-14
GB2117588B (en) 1985-11-27
FI830993L (en) 1983-10-01
GB2117588A (en) 1983-10-12
FI75962C (en) 1988-08-08
ATA112883A (en) 1987-12-15
FI830993A0 (en) 1983-03-23
DE3311640A1 (en) 1983-10-13
FI75962B (en) 1988-04-29
HK54389A (en) 1989-07-14
IT8320349A0 (en) 1983-03-29
IT1175304B (en) 1987-07-01
AT386309B (en) 1988-08-10
KR920002761B1 (en) 1992-04-02

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