KR20010056580A - Radio caption broadcasting system - Google Patents

Radio caption broadcasting system Download PDF

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Publication number
KR20010056580A
KR20010056580A KR1019990058089A KR19990058089A KR20010056580A KR 20010056580 A KR20010056580 A KR 20010056580A KR 1019990058089 A KR1019990058089 A KR 1019990058089A KR 19990058089 A KR19990058089 A KR 19990058089A KR 20010056580 A KR20010056580 A KR 20010056580A
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South Korea
Prior art keywords
caption
signal
radio
audio
broadcasting
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KR1019990058089A
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Korean (ko)
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김성택
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김성택
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Priority to KR1019990058089A priority Critical patent/KR20010056580A/en
Publication of KR20010056580A publication Critical patent/KR20010056580A/en

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Abstract

PURPOSE: A radio caption broadcasting system is provided to enable a radio listener to simultaneously listen to audio broadcasting through a speaker or earphones and caption broadcasting through a caption signal generator by simultaneously transmitting an audio and caption of radio broadcasting. CONSTITUTION: A radio caption broadcasting system of a 2-carrier, an AM-FM, or an FM-FM way simultaneously delivers an audio signal and caption signal through a caption signal converter. The radio caption broadcasting system of the 2-carrier way among three ways processes the caption(2) through a caption signal converter(3) and adds another carrier besides the existing carrier to a caption signal and audio signal. Then, the system individually transmits the audio and caption through two pre-emphases(4) and adds L and R to each signal passing through FM modulator(6) for transmission(8). In receiver, the L and R individually pass a band pass filter(9), an FM demodulator(11), and a de-emphasis circuit(13) in order. The audio signal is output through a speaker and the caption is displayed on an LCD monitor through a caption generating circuit(16).

Description

라디오 문자 방송 시스템{.}Radio Text Broadcasting System {.}

본 발명은 라디오 방송 시스템에 문자 방송 시스템을 내장시켜 오디오 방송과 문자방송이 동시에 이루어져서 청취자가 오디오 및 문자를 귀와 눈으로 라디오 방송을 청취 할 수 있는 것에 대한 것이다.The present invention relates to a radio broadcasting system in which a text broadcasting system is embedded, so that audio broadcasting and text broadcasting are simultaneously performed, so that a listener can listen to the radio broadcasting with audio and text through his ears and eyes.

일반적인 라디오 방송 시스템은 오디오만을 송출하여 청취자는 라디오를 통하여 오디오만을 청취 할 수 있었다.In general, a radio broadcasting system transmits only audio so that a listener can listen to audio only through a radio.

그래서 청력이 약한 노인이나 청력이 없는 장애인은 라디오의 프로그램에 참여 할 수 없으므로 이들은 라디오 방송의 소외된 계층이었다.Therefore, the elderly with weak hearing or the disabled without hearing cannot participate in the program of radio, so they were the marginalized class of radio broadcasting.

또한, 이 문자 방송 시스템은 외국어를 공부하려는 학생들에게 외국어를 오디오와 문자로 동시에 접할 수 있어 외국어 학습에 아주 효과적이며 휴대가 간편하고 저렴한 비용으로 어학 학습을 할 수가 있다.In addition, this text broadcasting system allows foreign students to study foreign languages at the same time with audio and text, so it is very effective for foreign language learning, and it is easy to carry and learn language at low cost.

본 발명은 상기한 문제점을 감안하여 창안한 것으로서 그 목적은 라디오 방송이 오디오와 문자를 동시에 방송 할 수 있어 청력이 약한 노인이나 청력이 없는 장애인도 라디오의 프로그램에 참여 할 수 있고, 저렴한 비용으로 언제어디서나 외국어 학습을 할 수 있다는 것이다.The present invention has been made in view of the above problems, and its purpose is that radio broadcasts can simultaneously broadcast audio and text, so that the elderly with weak hearing or those with no hearing can participate in the program of the radio, You can learn a foreign language anywhere.

상기한 목적을 달성하기 위한 본 발명의 특징은, 오디오 방송 시스템에서 오디오와 문자 신호를 동시에 송출하여 이를 방송하는 것을 특징으로 하는 라디오 문자 방송 시스템이다.A feature of the present invention for achieving the above object is a radio text broadcasting system, characterized in that the audio and text signal in the audio broadcasting system simultaneously broadcast.

도1은 본 발명에 의한 라디오 문자 방송 시스템 11 is a radio text broadcasting system according to the present invention 1

도2는 본 발명에 의한 라디오 문자 방송 시스템 22 is a radio character broadcasting system 2 according to the present invention.

도3는 본 발명에 의한 라디오 문자 방송 시스템33 is a radio character broadcasting system 3 according to the present invention.

도4는 본 발명에 의한 라디오 수신기의 실시예를 보인 설명도4 is an explanatory diagram showing an embodiment of a radio receiver according to the present invention;

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

1 : 음성신호 입력 2 : 문자입력 3 : 문자신호변환기1: Voice signal input 2: Character input 3: Text signal converter

4 : 프리엠파시스 6 : FM 변조 8 : 송출4: Pre-emphasis 6: FM modulation 8: Transmission

9 : 대역통과필터 11 : FM 복조 13 : 디엠파시스9 bandpass filter 11 FM demodulation 13

15 : 음성수신 16 : 문자신호회로 17 : 저주파필터15: voice reception 16: character signal circuit 17: low frequency filter

19 : AM 변조 20 : 매트릭스회로 21 : 파이로트검출부19 AM modulation 20 Matrix circuit 21 Pilot detection unit

22 : AM 복조 23 : 잡음제거필터 25 : 고주파필터22 AM demodulation 23 Noise reduction filter 25 High frequency filter

100 : 라디오 수신기 50 : 이어폰100: radio receiver 50: earphone

300-800 : 일반 라디오 부분품 900 : 액정 표시기300-800: General Radio Parts 900: Liquid Crystal Display

이하, 상기한 목적을 달성하기 위한 바람직한 본 발명의 실시 예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention for achieving the above object is as follows.

도1은 본 발명에 의한 라디오 방송의 문자 방송 시스템으로서, 이에 도시된 바와 같이 2 carrier 방식은 문자입력(2)을 문자 신호 변환기(3)로 처리하고 문자 신호와 음성신호를 기존의 반송파외에 다른 반송파를 추가하여 음성과 문자를 각각 전송하는 방식으로 2개의 프리엠파시스(4)를 통과하여 각 각 FM 변조(6)한 후 L 과 R을 더하여 송출(8) 하면 , 수신부 에서 L 과 R은 각 각 대역통과필터(9)와 FM 복조(11)를 통과하여 디엠파시스회로(13)를 거쳐 음성은 스피커로 문자는 문자 발생회로(16)를 거쳐 LCD 모니터(900)에 나타나게 된다.1 is a text broadcasting system of a radio broadcasting according to the present invention. As shown in FIG. 1, a two carrier method processes a text input 2 with a text signal converter 3 and converts a text signal and a voice signal to a carrier signal. By adding a carrier and transmitting voice and text, respectively, through two pre-emphasis (4), each FM modulation (6), and then add L and R (8), L and R at the receiver Each of the band pass filter 9 and the FM demodulation 11 passes through the de-emphasis circuit 13, the voice is the speaker, the character is displayed on the LCD monitor 900 via the character generator circuit 16.

도2는 본 발명에 의한 라디오 방송의 AM-FM 문자 방송 시스템으로서 이에 도시된 바와 같이 AM-FM 방식은 L - R 신호를 먼저 AM 변조(19)한 후 이 신호와 L + R 신호를 합친다. 그리고 반송파의 1/2 주파수를 파이로트 신호(21)로 하여 L + R 신호와 L - R 신호 사이에 함께 더한다(6).또 문자방송은 78.6KHZ 의 주파수에 FM 변조(6)한 후 L+R신호와L-4신호가 더하여진 신호와 합하여(6) 다시 FM 변조하여 전송한다.Fig. 2 is an AM-FM text broadcasting system for radio broadcasting according to the present invention. As shown therein, the AM-FM scheme first modulates an L-R signal and then combines the L + R signal. Then, the half frequency of the carrier wave is added as a pilot signal 21 between the L + R signal and the L-R signal (6). In addition, the character broadcasting is performed after FM modulation (6) at a frequency of 78.6 KHZ and L The signal is added to the signal plus the + R signal and the L-4 signal (6), and then modulated and transmitted again.

한편 수신부에서는 대역 통과 필터(9)를 거친 신호를 FM 복조(11)하고 FM복조한 파이로트신호는 파이로트 검출부에서 검출된후(21) 2배의 주파수로 L - R 신호와 곱하여 AM 복조(22)한 후 L + R 신호와 매트릭스회로로 합한다(20). 매트릭스회로를 거쳐 L 신호와 R 신호로 스피커로 출력된다.On the other hand, the receiving unit FM demodulates 11 the signal passing through the band pass filter 9 and the pilot signal FM-demodulated is detected by the pilot detector 21 and multiplied by the L-R signal at twice the frequency to demodulate the AM ( 22) and then add the L + R signal and the matrix circuit (20). The L and R signals are output to the speaker via the matrix circuit.

또한, FM 복조된(11) 문자신호는 대역필터를 거쳐 또다시 FM 복조(11)한후잡음제거회로(23)와 디엠파시스(13)를 통과하여 문자발생회로(16)를 거쳐 LCD에 문자(900)로 나타난다.In addition, the FM demodulated (11) character signal passes through the band pass filter, and then through the FM demodulation (11), passes through the noise canceling circuit (23) and the D-emphasis (13), and then through the character generation circuit (16). Appears as 900.

도3은 본 발명에 의한 라디오 방송의 FM-FM 문자 방송 시스템으로서 먼저 문자입력(2)을 문자 신호변환기로(3) 처리하고 음성신호(1)를 L ,문자 신호를 R 로 매트릭스회로(20)를 거쳐 L - R 신호를 FM 변조(6)한 후 이 신호와 직접 L + R을 더하여 FM 변조(6)한다.3 is a FM-FM text broadcasting system for radio broadcasting according to the present invention. First, the text input 2 is processed by a text signal converter 3, the voice signal 1 is converted into L, and the text signal is converted into R by the matrix circuit 20. FM signal modulates the L-R signal (6) and then adds L + R directly to the FM signal (6).

한편 제어신호도 전송을 하는데 제어신호는 AM 변조(19)하여 L + R 과 FM 변조된 L - R 신호와 함께 더하여 진다. 이렇게 더하여진 신호를 FM 변조(6)하여 전송(8)한다.On the other hand, the control signal is also transmitted. The control signal is modulated by AM 19 and added together with the L + R and FM modulated L-R signals. The signal thus added is FM modulated (6) and transmitted (8).

한편 수신부에서는 대역필터를 통하고 FM 검파(11)한다. FM 검파된 신호를 저역 통과 필터를 거친 후 고주파 억압(13) 하면 L + R 신호가 출력되고 대역 통과 필터를 거쳐 L - R FM 변조 신호만 통과한 후 다시 한번 FM 검파(11)하고 고주파 억압(13)하면 L - R 신호가 출력된다 메트릭스 회로를 통하여 L 은 음성 , R 은 문자로 분리되어 L은 스피커에 음성이 전달되고 , 문자는 문자 회로(16)를 통하여 LCD에 문자가 표시된다.(900)On the other hand, the receiver detects the FM through the band pass filter (11). When the FM-detected signal passes through the low pass filter and then the high frequency suppression (13) is output, the L + R signal is output and passes only the L-R FM modulated signal through the band pass filter, and then once again the FM detection (11) and the high frequency suppression ( 13) The L-R signal is output. Through the matrix circuit, L is divided into voice, R is divided into characters, L is transmitted to the speaker, and characters are displayed on the LCD through the character circuit 16. 900)

도4는 본 발명으로 인한 실시예를 보여준 것으로서 오디오 수신기(100)의 오디오와 문자는 채널선택(600)을 하면 음성신호는 음성증폭기를 통하여 스피커나 이어폰(300)으로 출력되고 , 문자신호는 문자 정보를축출하여 문자 회로(16)를 통하여 액정 표시기(900)에 출력된다.Figure 4 shows an embodiment according to the present invention, when the audio and text of the audio receiver 100 is the channel selection 600, the voice signal is output to the speaker or earphone 300 through the voice amplifier, the text signal is a text The information is extracted and output to the liquid crystal display 900 via the character circuit 16.

이상에서 상술한 바와 같은 본 발명은 라디오 송출 시스템 내부에 문자 신호 변환기(3)를 내장시키고 오디오 와 문자를 동시에 방송을 실시하면 귀가 어두운 장애인이나 노인들도 라디오의 프로그램을 눈으로 청취(900)할 수 있고 참여도 할 수 있으며, 외국어 공부를 하는 학생은 귀로 외국어를 듣고, 눈으로 외국어를 읽을 수있는 매우 유용한 발명인 것이다.According to the present invention as described above, when the text signal converter 3 is built into the radio transmission system and the audio and text are simultaneously broadcast, the disabled or the elderly who have dark ears can listen to the program of the radio 900. It is a very useful invention that allows students to participate, to study foreign languages, to listen to foreign languages with their ears, and to read foreign languages with their eyes.

Claims (2)

통상의 라디오 방송 2 carrier 방식, AM-FM 방식, FM-FM 방식의 시스템 에서, 문자 신호 변환기(3)가 내장되어 음성신호와 문자 신호가 동시에 방송되는 시스템을 특징으로 하는 라디오 문자 방송 시스템.In the conventional radio broadcasting 2 carrier system, AM-FM system, FM-FM system, a text signal converter (3) is built in, characterized in that the system for broadcasting the audio signal and the text signal simultaneously. 제1항에서 , 수신기에 문자신호회로(16)가 내장되어 문자 신호가 LCD 에 표시되는 것을 특징으로 하는 라디오 문자 방송 시스템.2. A radio text broadcasting system according to claim 1, wherein a text signal circuit (16) is built in the receiver so that the text signal is displayed on the LCD.
KR1019990058089A 1999-12-15 1999-12-15 Radio caption broadcasting system KR20010056580A (en)

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KR1019990058089A KR20010056580A (en) 1999-12-15 1999-12-15 Radio caption broadcasting system

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06197086A (en) * 1992-12-24 1994-07-15 Yoshizo Kimura Data radio receiver
JPH06268615A (en) * 1993-03-11 1994-09-22 Sanyo Electric Co Ltd Fm multiplex broadcast transmitter and fm multiplex broadcast receiver
JPH0715394A (en) * 1992-01-30 1995-01-17 Tohoku Nippon Denki Software Kk Teletext communications system
KR19990000737A (en) * 1997-06-10 1999-01-15 김영환 Display device for displaying radio text information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715394A (en) * 1992-01-30 1995-01-17 Tohoku Nippon Denki Software Kk Teletext communications system
JPH06197086A (en) * 1992-12-24 1994-07-15 Yoshizo Kimura Data radio receiver
JPH06268615A (en) * 1993-03-11 1994-09-22 Sanyo Electric Co Ltd Fm multiplex broadcast transmitter and fm multiplex broadcast receiver
KR19990000737A (en) * 1997-06-10 1999-01-15 김영환 Display device for displaying radio text information

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