KR940008411A - High Frequency (RF) Modulation Apparatus and Method of Multi Broadcasting - Google Patents

High Frequency (RF) Modulation Apparatus and Method of Multi Broadcasting Download PDF

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Publication number
KR940008411A
KR940008411A KR1019920017607A KR920017607A KR940008411A KR 940008411 A KR940008411 A KR 940008411A KR 1019920017607 A KR1019920017607 A KR 1019920017607A KR 920017607 A KR920017607 A KR 920017607A KR 940008411 A KR940008411 A KR 940008411A
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KR
South Korea
Prior art keywords
modulation
signal
modulated
control signal
modulated signal
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KR1019920017607A
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Korean (ko)
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KR960003208B1 (en
Inventor
김성철
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김광호
삼성전자 주식회사
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Priority to KR1019920017607A priority Critical patent/KR960003208B1/en
Publication of KR940008411A publication Critical patent/KR940008411A/en
Application granted granted Critical
Publication of KR960003208B1 publication Critical patent/KR960003208B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits

Abstract

본 발명은 멀티(Multi)방송 방식의 고주파(RF)변조장치 및 방법에 관한 것이고, 하나의 변조장치를 구비하여 부변조 시에는 변조신호를 하측대파로 형성하고 즉, 변조도 제어신호를 상기 변조 신호의 상측에 형성하여 상기 변조도 제어신호를 기준으로 상기 변조신호의 상측대파가 형성되는, 부변조된 피변조신호를 형성하고, 정변조시에는 변조신호를 상측대파로 형성하고 즉, 변조도 제어신호를 상기 변조신호의 하측에 형성하여 상기 변조도 제어신호를 기준으로 상기 변조신호의 하측대파가 형성되는 , 정변조된 피변조신호를 형성하는 방법으로 상기 선택된 변조 방식에 대응하는 부변조된 신호 및 정변조된 신호를 선택적으로 출력하는 것을 특징으로 하는 멀티방송 방식의 고주파변조방법에 관한 것이다.The present invention relates to a high frequency (RF) modulation apparatus and method of a multi-broadcasting method, and includes a modulation device to form a modulated signal as a lower wave when performing submodulation, that is, to modulate a modulation degree control signal. A sub-modulated to-be-modulated signal is formed on the upper side of the signal, the upper wave of the modulated signal being formed on the basis of the modulation degree control signal. A sub-modulated signal corresponding to the selected modulation method by forming a signal under the modulation signal to form a modulated signal to be modulated, wherein a lower band of the modulation signal is formed based on the modulation control signal. And it relates to a high-frequency modulation method of the multi-broadcasting method characterized in that selectively outputting the positively modulated signal.

Description

멀티(Multi)방송 방식의 고주파(RF)변조장치 및 방법High Frequency (RF) Modulation Apparatus and Method of Multi Broadcasting

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명의 멀티방송 방식의 고주파변조장치의 블럭도.4 is a block diagram of a high-frequency modulation device of the multi-broadcast method of the present invention.

제5도는 본 발명의 부변조방식의 각 신호를 보인 도면.5 is a view showing each signal of the sub-modulation method of the present invention.

제6도 본 발명의 정변조 방식의 각 신호를 보인 도면.6 is a view showing each signal of the positive modulation scheme of the present invention.

Claims (3)

변조신호를 입력하기 위한 변조 신호 입력단자, 반송신호를 입력하기 위한 반송신호 입력단자, 및 변조방식 선택신호 및 변조도 제어신호를 입력하기 위한 선택 및 제어신호 입력단자를 구비하고, 선택된 변조방식에서 대응하여 제2방송 변조방식일 때는 부변조신호를 출력하고 제2방송방식일 때는 정변조신호를 출력하는 것을 특징으로 하는 멀티방송 방식의 고주파수 변조장치.A modulation signal input terminal for inputting a modulation signal, a carrier signal input terminal for inputting a carrier signal, and a selection and control signal input terminal for inputting a modulation method selection signal and a modulation degree control signal; Correspondingly, a second broadcast modulation method outputs a sub-modulation signal, and in the second broadcasting method, a positive modulation signal is output. 제 1항에 있어서, 상기 장치는 변조신호를 제어하지 않고 변조도 제어신호에 의해 변조가 결정되는 것을 특징으로 하는 멀티방송 방식의 고주파변조장치.The apparatus of claim 1, wherein the modulation is determined by a modulation degree control signal without controlling the modulation signal. 부변조 시에는 변조도 제어신호를 상기 변조신호의 상측에 형성하여 상기 변조도 제어신호를 기준으로 상기 변조신호의 상측대파가 형성되는 피변조신호를 형성하고, 정변조 시에는 변조도 제어신호를 상기 변조신호의 하측에 형성하여 상기 변조도 제어신호를 기준으로 상기 변조신호의 하측대파가 형성되는 피변조신호를 형성하는 방법으로 상기 선택된 변조방식에 대응하는 부변조된 신호 및 정변조 된 신호를 선택적으로 출력하는 것을 특징으로 하는 멀티방송 방식의 고주파변조방법.In the case of sub-modulation, a modulation degree control signal is formed above the modulation signal to form a modulated signal in which an upper band of the modulation signal is formed based on the modulation degree control signal. A sub-modulated signal and a positively-modulated signal corresponding to the selected modulation method by forming a modulated signal formed below the modulated signal to form a lower band of the modulated signal based on the modulation degree control signal. High frequency modulation method of the multi-broadcasting method characterized in that the output selectively. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920017607A 1992-09-26 1992-09-26 Radio frequency modulation apparatus of a multiple broadcasting system KR960003208B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920017607A KR960003208B1 (en) 1992-09-26 1992-09-26 Radio frequency modulation apparatus of a multiple broadcasting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920017607A KR960003208B1 (en) 1992-09-26 1992-09-26 Radio frequency modulation apparatus of a multiple broadcasting system

Publications (2)

Publication Number Publication Date
KR940008411A true KR940008411A (en) 1994-04-29
KR960003208B1 KR960003208B1 (en) 1996-03-06

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ID=19340173

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Application Number Title Priority Date Filing Date
KR1019920017607A KR960003208B1 (en) 1992-09-26 1992-09-26 Radio frequency modulation apparatus of a multiple broadcasting system

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KR (1) KR960003208B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100510479B1 (en) * 1999-02-02 2005-08-26 삼성전자주식회사 Video modulator having the function of controlling modulation index and modulation method thereof
KR100786930B1 (en) * 2005-05-16 2007-12-17 이용학 Connecting structure of sap back and sap set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100510479B1 (en) * 1999-02-02 2005-08-26 삼성전자주식회사 Video modulator having the function of controlling modulation index and modulation method thereof
KR100786930B1 (en) * 2005-05-16 2007-12-17 이용학 Connecting structure of sap back and sap set

Also Published As

Publication number Publication date
KR960003208B1 (en) 1996-03-06

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