KR970024550A - How to automatically switch broadcasting frequency of car audio - Google Patents

How to automatically switch broadcasting frequency of car audio Download PDF

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Publication number
KR970024550A
KR970024550A KR1019950037408A KR19950037408A KR970024550A KR 970024550 A KR970024550 A KR 970024550A KR 1019950037408 A KR1019950037408 A KR 1019950037408A KR 19950037408 A KR19950037408 A KR 19950037408A KR 970024550 A KR970024550 A KR 970024550A
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South Korea
Prior art keywords
electric field
field strength
frequency
predetermined value
broadcasting
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KR1019950037408A
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Korean (ko)
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KR0167057B1 (en
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홍종면
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한승준
기아자동차 주식회사
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0091—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with means for scanning over a band of frequencies

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

본 발명은 카오디오(CAR AUDIO)의 방송주파수 선국장치에 관한 것으로, 특히, 선택된 카오디오의 수신채널변경 모드(MODE)가, 카오디오의 수신채널 변경을 자동으로 행하는 자동전환모드인가를 지속적으로 검출하여, 자동전환모드일 경우, 수신되는 방송주파수의 전계강도를 검출하여 검출된 전계강도가 수신불량을 나타내는 소정의 값 이하인가를 지속적으로 검출하는 전계강도검출단계(100)와; 상기 전계강도검출단계(100)를 수행한 결과, 검출된 전계강도가 수신불량을 나타내는 소정의 값이하로 판단됨에 따라, 소정의 시간동안 지연동작을 수행한 후 수신되는 방송주파수의 전계강도를 재검출하여, 그 값이 상기 소정의 값 이하인가를 판단하는 지연단계(200)와; 상기 지연단계(200)를 수행한 결과, 소정의 시간동안 지연동작을 행한 후 재 검출한 전계강도가 수신불량을 나타내는 소정의 값 이하로 판단됨에 따라, 청취중인 방송국의 지역별 방송주파수 리스트(LIST)에 포함된 방송주파수의 전계강도를 검출하여 가장 세력이 강한 전계강도를 나타내는 방송주파수로 수신채널을 전환하는 수신채널전환단계(300)를 포함하여 구성됨을 특징으로하는 카오디오의 방송주파수 자동전환방법이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a broadcast frequency tuning apparatus for car audio, and in particular, whether or not the received channel change mode (MODE) of the selected car audio is an automatic switching mode for automatically changing the receive channel of car audio. A field strength detection step (100) of detecting, in the automatic switching mode, continuously detecting whether the detected electric field strength of the received broadcast frequency is equal to or less than a predetermined value indicating a poor reception; As a result of performing the electric field strength detecting step 100, as the detected electric field strength is determined to be less than or equal to a predetermined value indicating a reception failure, the electric field strength of the broadcast frequency received after performing a delay operation for a predetermined time is reset. A delay step (200) of detecting and determining whether the value is equal to or less than the predetermined value; As a result of performing the delay step 200, as the electric field strength detected again after performing a delay operation for a predetermined time is determined to be equal to or less than a predetermined value indicating a reception failure, a list of broadcasting frequencies by region of the broadcasting station listening Method for automatically switching the broadcast frequency of the car audio, characterized in that it comprises a receiving channel switching step 300 for detecting the electric field strength of the broadcast frequency included in the switching channel to a broadcast frequency representing the strongest electric field strength to be.

Description

카오디오의 방송주파수 자동전환방법How to automatically switch broadcasting frequency of car audio

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

제3도는 본 발명 “카오디오의 방송주파수 자동전환방법”을 나타낸 제어흐름도.3 is a control flowchart showing the present invention "automatic switching frequency of the car audio".

Claims (5)

선택된 카오디오의 수신채널변경 모드가, 카오디오의 수신채널 변경을 자동으로 행하는 자동전환모드인가를 지속적으로 검출하여, 자동전환모드일 경우, 수신되는 방송주파수의 전계강도를 검출하여 검출된 전계강도가 수신불량을 나타내는 소정의 값 이하인가를 지속적으로 검출하는 전계강도검출단계와; 상기 전계강도검출단계를 수행한 결과, 검출된 전계강도가 수신불량을 나타내는 소정의 값이하로 판단됨에 따라, 소정의 시간동안 지연동작을 수행한 후 수신되는 방송주파수의 전계강도를 재검출하며, 그 값이 상기 소정의 값 이하인가를 판단하는 지연단계와; 상기 지연단계를 수행한 결과, 소정의 시간동안 지연동작을 행한 후 재 검출한 전계강도가 수신불량을 나타내는 소정의 값 이하로 판단됨에 따라, 청취중인 방송국의 지역별 방송주파수 리스트에 포함된 방송주파수의 전계강도를 검출하여 가장 세력이 강한 전계강도를 나타내는 방송주파수로 수신채널을 전환하는 수신채널전환단계를 포함하여 구성됨을 특징으로하는 카오디오의 방송주파수 자동전환방법.Continuously detects whether the received channel change mode of the selected car audio is an automatic switching mode that automatically changes the receiving channel of the car audio, and in the automatic switching mode, detects the electric field strength of the received broadcasting frequency and detects the electric field strength. An electric field strength detecting step of continuously detecting whether is equal to or less than a predetermined value indicating a poor reception; As a result of performing the electric field strength detecting step, as the detected electric field strength is determined to be less than or equal to a predetermined value indicating a reception failure, the electric field strength of the received broadcasting frequency is redetected after performing a delay operation for a predetermined time. A delay step of determining whether the value is less than or equal to the predetermined value; As a result of performing the delay step, it is determined that the electric field strength re-detected after performing the delay operation for a predetermined time is equal to or less than a predetermined value indicating a reception failure, and thus, And a receiving channel switching step of switching the receiving channel to a broadcasting frequency indicating the strongest electric field strength by detecting the electric field strength. 제1항에 있어서, 상기 수산채널전환단계는, 상기 지연단계를 수행한 결과, 소정의 시간동안 지연한 후 재 검출힌 방송주파수의 전계강도가 수신불량을 나타내는 소정의 값 이하로 판단됨에 따라, 청취중인 방송국의 지역별 방송주파수 리스트를 검색하므로써, 당해 방송국의 지역별 방송주파수 리스트가 존재하는가를 판단하여, 지역별 방송주파수 리스트가 존재하지 않을 경우에는 소정의 수신불량 안내신호를 발생하는 주파수리스트검색단계와; 상기 주파수리스트검색단계를 수행한 결과, 청취중인 방송국의 지역별 방송주파수 리스트가 존재하는 것으로 판단됨에 따라, 방송주파수 리스트에 존재하는 방송주파수의 전계강도를 순차적으로 검출하므로써, 양호한 수신감도를 나타내는 소정의 값 이상의 전계강도를 나타내는 방송주파수가 존재하는가를 판단하여, 양호한 수신감도를 나타내는 소정의 값 이상의 전계강도를 나타내는 방송주파수가 존재하지 않을 경우에는 소정의 수신 불량안내신호를 발생하는 최적주파수검출단계와, 상기 최적주파수검출단계를 수행한 결과, 양호한 수신감도를 나타내는 소정의 값 이상의 전계강도를 나타내는 방송주파수가 존재하는 것으로 판단됨에 따라, 상기 소정의 값 이상의 전계강도를 나타내는 방송주파수 중에서 가장 세력이 강한 전계강도를 지니는 방송주파수를 수신채널주파수로 자동전환하는 채널변경단계를 포함하여 구성됨을 특징으로하는 카오디오의 방송주파수 자동전환방법.The method of claim 1, wherein the fisheries channel switching step, as a result of performing the delaying step, determines that the electric field strength of the broadcast frequency redetected after a delay for a predetermined time is less than or equal to a predetermined value indicating a reception failure. Searching for a list of broadcast frequencies by region of the broadcasting station being listened to, determines whether there is a list of broadcast frequencies by region of the broadcasting station, and if there is no list of broadcast frequencies by region, generating a predetermined bad reception guide signal; ; As a result of performing the frequency list retrieval step, it is determined that there is a local broadcasting frequency list of a broadcasting station that is listening, and thus, by sequentially detecting the electric field strength of the broadcasting frequencies present in the broadcasting frequency list, a predetermined value representing a good reception sensitivity is obtained. Determining whether there is a broadcasting frequency indicating the electric field strength greater than or equal to the value, and when there is no broadcasting frequency indicating the electric field intensity greater than the predetermined value indicating the good reception sensitivity, an optimum frequency detection step of generating a predetermined reception failure guide signal; As a result of performing the optimum frequency detection step, it is determined that there is a broadcast frequency indicating an electric field strength of a predetermined value or more indicating good reception sensitivity, and thus, the strongest force among the broadcasting frequencies indicating an electric field intensity of the predetermined value or more is strong. Field strength And a channel change step of automatically converting a broadcast frequency to a reception channel frequency. 제2항에 있어서, 상기 주파수리스트검색단계내지 최적주파수검출단계의 수신불량안내신호발생방법은, 차량정보표시판넬 내의 소정의 위치에 설치되어, 소정의 제어신호에 의해 점멸하므로써 수신분량을 나타내도록 하는 LED를 사용함을 특징으로하는 카오디도의 방송주파수 자동전환방법.The reception failure guidance signal generating method of the frequency list searching step or the optimum frequency detecting step is installed at a predetermined position in the vehicle information display panel and flashes by a predetermined control signal to indicate the receiving amount. Method of automatic broadcasting frequency conversion of the car audio, characterized by using the LED. 제2항에 있어서, 상기 주파수리스트검색단계내지 최적주파수검출단계의 수신불량안내신호는, 수신불량을 나타내는 특정의 음을 발생하는 음발생회로를 사용함을 특징으로하는 카오디오의 방송주파수 자동전환방법.The method of claim 2, wherein the reception failure guide signal in the frequency list search step or the optimum frequency detection step uses a sound generation circuit for generating a specific sound indicating a reception failure. . 제2항에 있어서, 상기 주파수리스트검색단계내지 최적주파수검출단계의 수신불량안내신호는, 수신불량을 안내하는 음성을 출력하는 음성발생회로를 사용함을 특징으로하는 카오디오의 방송주파수 자동전환방법.3. The method of claim 2, wherein the reception failure guide signal in the frequency list search step or the optimum frequency detection step uses a voice generation circuit for outputting a voice for guiding reception failure. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950037408A 1995-10-26 1995-10-26 Broadcasting frequency automatic selecting method of car audio KR0167057B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100274015B1 (en) * 1998-01-10 2000-12-15 구자홍 Auto frequency navigator
KR100435402B1 (en) * 1996-12-27 2004-08-04 현대자동차주식회사 Auto dial-selector for radio system using comparison identical radio
KR100738717B1 (en) * 2005-07-07 2007-07-12 엘지전자 주식회사 Wireless audio transmission/reception system and using method of the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100876708B1 (en) * 2002-07-18 2008-12-31 엘지전자 주식회사 Automatic channel switching method and device
KR100852421B1 (en) * 2007-01-11 2008-08-14 한국단자공업 주식회사 Method and Apparatus for Automatic Converting of Analog Broadcasting Channel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435402B1 (en) * 1996-12-27 2004-08-04 현대자동차주식회사 Auto dial-selector for radio system using comparison identical radio
KR100274015B1 (en) * 1998-01-10 2000-12-15 구자홍 Auto frequency navigator
KR100738717B1 (en) * 2005-07-07 2007-07-12 엘지전자 주식회사 Wireless audio transmission/reception system and using method of the same

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Publication number Publication date
KR0167057B1 (en) 1999-03-20

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