KR880010572A - PAL / SECAM Common Tuner - Google Patents

PAL / SECAM Common Tuner

Info

Publication number
KR880010572A
KR880010572A KR870001795A KR870001795A KR880010572A KR 880010572 A KR880010572 A KR 880010572A KR 870001795 A KR870001795 A KR 870001795A KR 870001795 A KR870001795 A KR 870001795A KR 880010572 A KR880010572 A KR 880010572A
Authority
KR
South Korea
Prior art keywords
secam
pal
capacitor
signal
frequency
Prior art date
Application number
KR870001795A
Other languages
Korean (ko)
Other versions
KR890004772B1 (en
Inventor
이기룡
Original Assignee
임경준
삼성전자부품주식회사
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 임경준, 삼성전자부품주식회사 filed Critical 임경준
Priority to KR1019870001795A priority Critical patent/KR890004772B1/en
Publication of KR880010572A publication Critical patent/KR880010572A/en
Application granted granted Critical
Publication of KR890004772B1 publication Critical patent/KR890004772B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

내용 없음No content

Description

PAL/SECAM방식의 공용튜너PAL / SECAM shared tuner

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

제1도는 본 발명이 적용된 PAL/SECAM방식의 공용튜너에 대한 블록구성도.1 is a block diagram of a common tuner of the PAL / SECAM method to which the present invention is applied.

제2도는 본 발명에 따른 IF절환 및 반전부의 1실시예를 나타내는 도면.2 is a view showing an embodiment of the IF switching and inversion unit according to the present invention.

제3도는 본 발명에 따른 IF절환 및 반전부의 다른 실시예를 나타내는 도면이다.3 is a view showing another embodiment of the IF switching and inverting unit according to the present invention.

Claims (2)

UHF수신부(I)와 VHF수신부(II)로 구성되어 신호주파수를 상측헤테로다인방식에 의해 IF주파수로 변환시키도록 된 TV수상기의 튜너에 있어서, 콘덴서(C1, C2)와 저항(R1-R4) 및 입력신호주파수(IF)에 대해 상호역방향 접속되는 다이오드(D1,D3)(D2,D4)로 구성되어 PAL방식 및 SECAM방식의 방송신호에 대한 IF신호를 출력하는 PAL/SECAM방식 절환부(12)와, 트랜지스터(TR1)와 저항(R6-R8), 콘덴서(C5-C9) 및 코일(L2)로 구성되어 SECAM방식의 하측밴드의 IF(SIF와 VIF)반전신호르 얻기 위한 소정 주파수를 발진출력하는 발진부(13) 및, 콘덴서(C3,C4)와 다이오드(D5,D6) 및 트랜스(T1)로 구성되어 상기 발진부(13)의 소정주파수와 SECAM방식의 IF신호를 혼합하여 얻어지는 SIF와 VIF신호를 출력하는 혼합회로(14)로 구성된 IF절환 및 반전부(III)를 구비하여서 이루어진 PAL/SECAM방식의 공용튜너.In a tuner of a TV receiver comprising a UHF receiver (I) and a VHF receiver (II) to convert a signal frequency into an IF frequency by an upper heterodyne method, a capacitor (C 1 , C 2 ) and a resistor (R1-). R4) and PAL / SECAM switching unit which is composed of diodes D1, D3 (D2, D4) connected in reverse direction with respect to the input signal frequency IF to output IF signals for PAL and SECAM broadcasting signals. (12) and a transistor (TR1), resistors (R6-R8), capacitors (C5-C9), and coils (L2), the predetermined frequency for obtaining the IFAM (SIF and VIF) inversion signals of the lower band of the SECAM method. An oscillation section 13 for oscillating and outputting a capacitor, C3 and C4, diodes D5 and D6, and a transformer T1, and a SIF obtained by mixing a predetermined frequency of the oscillation section 13 and an IF signal of a SECAM method. And a combination circuit (14) for outputting a VIF signal and an IF switching and inverting section (III). 제1항에 있어서, IF절환 및 반전부(III)는 트랜지스터(TR11)와 저항(R11-R15) 및 콘덴서(C12-C16)로 구성되어 SECAM방식의 하측밴드 선택시 소정의 주파수를 발생시켜 주는 발진부(13)와, 트랜스(T11, T12)와 브릿지형으로 접속된 다이오드(D11-D14) 및 콘덴서(C11)로 구성되어 IF신호(VIF와 SIF)를 그대로 출력하게 되거나 소정의 주파수와 혼합하여 얻어지는 신호를 출력하게 되는 혼합회로(14)로 구성된 것을 특징으로 하는 PAL/SECAM방식의 공용튜너.The IF switching and inverting portion III is composed of a transistor TR11, a resistor R11-R15, and a capacitor C12-C16 to generate a predetermined frequency when selecting a lower band of the SECAM method. It is composed of the oscillator 13, the diodes D11-D14 and the capacitor C11 connected in a bridge form with the transformers T11 and T12 to output the IF signals VIF and SIF as they are or mix with a predetermined frequency. A PAL / SECAM shared tuner, comprising: a mixing circuit 14 for outputting a signal obtained. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019870001795A 1987-02-28 1987-02-28 A turner of pal/secam type KR890004772B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870001795A KR890004772B1 (en) 1987-02-28 1987-02-28 A turner of pal/secam type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870001795A KR890004772B1 (en) 1987-02-28 1987-02-28 A turner of pal/secam type

Publications (2)

Publication Number Publication Date
KR880010572A true KR880010572A (en) 1988-10-10
KR890004772B1 KR890004772B1 (en) 1989-11-25

Family

ID=19259765

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870001795A KR890004772B1 (en) 1987-02-28 1987-02-28 A turner of pal/secam type

Country Status (1)

Country Link
KR (1) KR890004772B1 (en)

Also Published As

Publication number Publication date
KR890004772B1 (en) 1989-11-25

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