KR920001947A - Surround mode automatic switching system - Google Patents

Surround mode automatic switching system Download PDF

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Publication number
KR920001947A
KR920001947A KR1019900009420A KR900009420A KR920001947A KR 920001947 A KR920001947 A KR 920001947A KR 1019900009420 A KR1019900009420 A KR 1019900009420A KR 900009420 A KR900009420 A KR 900009420A KR 920001947 A KR920001947 A KR 920001947A
Authority
KR
South Korea
Prior art keywords
surround mode
switching
control
accordance
controller
Prior art date
Application number
KR1019900009420A
Other languages
Korean (ko)
Inventor
류상원
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019900009420A priority Critical patent/KR920001947A/en
Publication of KR920001947A publication Critical patent/KR920001947A/en

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Abstract

내용 없음No content

Description

서라운드 모드 자동절환 시스템Surround mode automatic switching system

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

제2도는 본 발명에 따른 서라운드 모드 절환 시스템 구성도.2 is a block diagram of a surround mode switching system according to the present invention.

제3도는 본 발명에 따른 콘트롤러의 제어흐름도.3 is a control flow diagram of a controller according to the present invention.

Claims (2)

오디오입력신호(Au)를 직접 및 제1,2,3서라운드 변환회로 (1),(2),(3)를 통해 스위칭부(4)에 인가한 후 키입력부(6)를 통해 스위칭부(4)에 인가한 후 키입력부(6)를 통해 제어받는 콘트롤러(5)의 제어신호(C1),(C2)에 따라 선택절환하여 앰프(7)를 통해 스피커(8)에 출력하도록 구성된 서라운드 모드 절환 시스템에 있어서, 상기 오디오 입력신호(Au)를 버퍼(B)를 통한 후 각기 다른 주파수대역을 갖는 제1,2,3대역통과 필터(11),(12),(13)를 통해 필터링하여 정류기(14),(15),(16)에서 각기 정류한 값과, 상기 버퍼(B)의 출력을 직접 정류기(17)에서 정류한 값인 기준값을 비교기(18),(19),(20)를 통해 각기 비교하여 상기 콘트롤러(5)에 입력(S1), (S2),(S3)하고, 그 콘트롤러(5)는 상기 입력(S1),(S2),(S3)에 따라 서라운드 모드 선택절환을 위해 상기 스위칭부(4)를 제어하도록 구성한 것을 특징으로 하는 서라운드 모드 자동절환 시스템.The audio input signal Au is applied to the switching unit 4 directly and through the first, second and third surround conversion circuits (1), (2) and (3), and then through the key input unit 6, the switching unit ( Surround mode configured to output to the speaker 8 through the amplifier (7) by selectively switching in accordance with the control signal (C1), (C2) of the controller 5 controlled by the key input unit (6) after applying to the 4) In the switching system, the audio input signal Au is filtered through the first and second bandpass filters 11, 12, and 13 having different frequency bands through the buffer B. Comparators (18), (19), and (20) of the values rectified by the rectifiers (14), (15), and (16), and the reference values which are the values rectified directly by the rectifier (17) with the output of the buffer (B). Compared to each other through the input to the controller (S1), (S2), (S3), the controller (5) is the surround mode selection switching in accordance with the input (S1), (S2), (S3) It is configured to control the switching unit 4 for Surround mode is automatically switched to the system. 제1항에 있어서, 비교기(18),(19),(20)로부터의 입력(S1),(S2),(S3)에 따라 각기 카운트업/다운하면서 그 카운트값이 서라운드 모드에 따라 설정한 최대 이상일때와 최소이하가 될때 각각 그에 따른 제어값을 설정한 후 그 설정되는 제어값에 따라 스위칭부(4)에 제어출력(C1),(C2)하여 자동으로 최적서라운드 모드를 선택하도록 콘트롤러(5)가 제어하는 것을 특징으로 하는 서라운드 모드 자동절환 시스템.The method according to claim 1, wherein the count values are counted up and down in accordance with the inputs S1, S2, and S3 from the comparators 18, 19, and 20, and the count values are set in accordance with the surround mode. After setting the control value according to the above or below the maximum and below the minimum, the controller outputs the control outputs C1 and C2 to the switching unit 4 and automatically selects the optimum surround mode according to the set control value. 5) surround mode automatic switching system characterized in that the control. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900009420A 1990-06-25 1990-06-25 Surround mode automatic switching system KR920001947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900009420A KR920001947A (en) 1990-06-25 1990-06-25 Surround mode automatic switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900009420A KR920001947A (en) 1990-06-25 1990-06-25 Surround mode automatic switching system

Publications (1)

Publication Number Publication Date
KR920001947A true KR920001947A (en) 1992-01-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900009420A KR920001947A (en) 1990-06-25 1990-06-25 Surround mode automatic switching system

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KR (1) KR920001947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100226056B1 (en) * 1997-01-10 1999-10-15 이종수 Elevator velocity control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100226056B1 (en) * 1997-01-10 1999-10-15 이종수 Elevator velocity control apparatus

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