KR940012860A - 10hz identification ton decoder - Google Patents

10hz identification ton decoder Download PDF

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Publication number
KR940012860A
KR940012860A KR920022043A KR920022043A KR940012860A KR 940012860 A KR940012860 A KR 940012860A KR 920022043 A KR920022043 A KR 920022043A KR 920022043 A KR920022043 A KR 920022043A KR 940012860 A KR940012860 A KR 940012860A
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KR
South Korea
Prior art keywords
tone
indicator
control circuit
synchronized
signal
Prior art date
Application number
KR920022043A
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Korean (ko)
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KR100206551B1 (en
Inventor
장동비
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김광호
삼성전자 주식회사
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Priority to KR1019920022043A priority Critical patent/KR100206551B1/en
Publication of KR940012860A publication Critical patent/KR940012860A/en
Application granted granted Critical
Publication of KR100206551B1 publication Critical patent/KR100206551B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

이 발명은 10㎐ID톤 신호에 동기 되는 위상 동기 루프를 사용하여 현재 방송 상태가 FM인지 FMX인지를 수신자가 정확히 인식할 수 있도록 하는 것으로서, 10㎐ID톤 필터와 ID톤 인디케이터 사이에 인디케인터 제어 회로와 인디케이터 구동부를 더 구비하여 FM동작시 변조 신호안의 10㎐가 하이 변조 걸려 이 신호가 2∼3회 반복될때에는 인디케이터 제어회로(200)가 동기되지 않아 ID톤 인디케이터(50)는 오프되고, FMX 동작시에는 FMX 신호내의 10㎐ID톤 신호가 항상 존재하기 때문에 인디케이터 제어 회로 (200)는 동기되어 ID톤 인디케이터 (50)가 온이됨으로써, FM 동작시 변조 신호안의 10㎐가 하이 변조 걸려 2∼3회 반복될때 FMX 동작 상태를 나타내는 ID톤 인디케이터가 온이 되는 오동작이 방지된다.The present invention uses a phase-locked loop synchronized to a 10㎐ID tone signal so that the receiver can accurately recognize whether the current broadcast state is FM or FMX, and is an indicator between the 10㎐ID tone filter and the ID tone indicator. In addition, the control circuit and the indicator driving unit further include 10 kHz in the modulation signal during FM operation. When this signal is repeated two or three times, the indicator control circuit 200 is not synchronized and the ID tone indicator 50 is turned off. In the FMX operation, since the 10 항상 ID tone signal is always present in the FMX signal, the indicator control circuit 200 is synchronized so that the ID tone indicator 50 is turned on. Malfunction in which the ID tone indicator indicating the FMX operation state is turned on when repeated two or three times is prevented.

Description

10㎐ 아이덴피티케이션 톤 디코더 회로10㎐ identification tone decoder circuit

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

제3도는 이 발명에 따른 10㎐ ID톤 디코더 회로의 상세 회로도이다.3 is a detailed circuit diagram of a 10 kHz ID tone decoder circuit according to the present invention.

Claims (4)

10㎐만 통과시키는 10㎐ ID톤 필터와, 기준 주파수를 제공하기 위한 전압 제어 발진기 및 분주기와, 상기 10㎐ ID톤 필터에서 10㎐ ID톤 신호가 2∼3회 이상 반복되면 ID톤 인디케이터를 온시키는 ID톤 디코더로 이루어진 10㎐ ID톤 디코더 회로에 있어서, 상기 10㎐ ID톤 필터의 출력단에 연결되어 상기 10㎐ ID톤 필터에서 연속으로 10㎐가 출력될때에 동기되는 인디케이터 제어 회로와, 상기 인디케이터 제어 회로와 상기 ID톤 인디케이터 사이에 연결되어 상기 인디케이터 제어 회로의 출력에 따라 상기 ID톤 인디케이터를 동작시키는 인디케이터 구동부가 더 구비되는 10㎐ 아이덴티피케이션 톤 디코더 회로.A 10 ㎐ ID tone filter that passes only 10 kHz, a voltage controlled oscillator and divider to provide a reference frequency, and an ID tone indicator if the 10 ㎐ ID tone signal is repeated two or more times in the 10 ㎐ ID tone filter. 10. An ID tone decoder circuit comprising an ID tone decoder to be turned on, comprising: an indicator control circuit connected to an output end of the 10 dB ID tone filter and synchronized with 10 dB continuous output from the 10 dB ID tone filter; And an indicator driver connected between an indicator control circuit and the ID tone indicator to operate the ID tone indicator according to the output of the indicator control circuit. 제1항에 있어서, 상기 인디케이터 제어 회로는, 10㎐ ID톤 신호에 동기되는 위상동기루프 FM 스테레오 복조기로 이루어짐을 특징으로 하는 10㎐ 아이덴티피케이션 톤 디코더 회로.2. The 10-kHz identification tone decoder circuit of claim 1, wherein the indicator control circuit comprises a phase-locked-loop FM stereo demodulator synchronized to a 10-kHz ID tone signal. 제1항에 있어서, 상기 인디케이터 구동부는, 베이스단에는 상기 인디케이터 제어 회로의 출력단이 연결되고 콜렉터단에는 상기 ID톤 인디케이터가 연결되는 트랜지스터로 이루어짐을 특징으로 하는 10㎐ 아이덴티피케이션 톤 디코더 회로.The 10-dB identification tone decoder circuit of claim 1, wherein the indicator driver comprises a transistor having a base end coupled to an output end of the indicator control circuit and a collector end coupled to the ID tone indicator. 제1항에 있어서, 상기 ID톤 인디케이터는, 상기ID톤 디코더가 동작하고 동시에 인디케이터 제어 회로가 동기 되었을 때에만 동작하여 온되는 것을 특징으로 하는 10㎐ 아이덴티피케이션 톤 디코더 회로.The 10-dB identification tone decoder circuit of claim 1, wherein the ID tone indicator is operated only when the ID tone decoder operates and the indicator control circuit is synchronized. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920022043A 1992-11-23 1992-11-23 10hz identification ton decoder KR100206551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920022043A KR100206551B1 (en) 1992-11-23 1992-11-23 10hz identification ton decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920022043A KR100206551B1 (en) 1992-11-23 1992-11-23 10hz identification ton decoder

Publications (2)

Publication Number Publication Date
KR940012860A true KR940012860A (en) 1994-06-24
KR100206551B1 KR100206551B1 (en) 1999-07-01

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ID=19343667

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920022043A KR100206551B1 (en) 1992-11-23 1992-11-23 10hz identification ton decoder

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KR (1) KR100206551B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9964082B2 (en) 2016-04-08 2018-05-08 Hyundai Motor Company Diesel fuel filter for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9964082B2 (en) 2016-04-08 2018-05-08 Hyundai Motor Company Diesel fuel filter for vehicle

Also Published As

Publication number Publication date
KR100206551B1 (en) 1999-07-01

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