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KR930015384A - Alternative frequency high speed search method of RDS receiver - Google Patents

Alternative frequency high speed search method of RDS receiver Download PDF

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Publication number
KR930015384A
KR930015384A KR1019910023694A KR910023694A KR930015384A KR 930015384 A KR930015384 A KR 930015384A KR 1019910023694 A KR1019910023694 A KR 1019910023694A KR 910023694 A KR910023694 A KR 910023694A KR 930015384 A KR930015384 A KR 930015384A
Authority
KR
South Korea
Prior art keywords
speed
high speed
speed search
search method
rds receiver
Prior art date
Application number
KR1019910023694A
Other languages
Korean (ko)
Other versions
KR950002431B1 (en
Inventor
정병노
Original Assignee
이헌조
주식회사 금성사
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Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910023694A priority Critical patent/KR950002431B1/en
Publication of KR930015384A publication Critical patent/KR930015384A/en
Application granted granted Critical
Publication of KR950002431B1 publication Critical patent/KR950002431B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

본 발명은 RDS 수신기의 고속 튜닝기술에 관한 것으로, 마이콤(16)의 제어로 고속서치용 저역필터(18)와 저속 서치용 저역필터(19)의 선택을 제어하고, FM 중간주파 처리부(15)에 출력되는 SD의 상승 역시 고속, 저속으로 처리하여 PLL 데이타 송부시간에서 SD 확인까지의 시간을 대폭적으로 줄여 뮤팅에 따른 절단음을 느끼지 못하게 하였다.The present invention relates to a high-speed tuning technique of the RDS receiver, and controls the selection of the high-speed search low pass filter 18 and the low-speed search low pass filter 19 by the control of the microcomputer 16, and the FM intermediate frequency processor 15 In addition, the rise of the SD output to the high-speed and low-speed processing significantly reduced the time from the PLL data sending time to the SD check so that the sound of muting due to muting was not felt.

Description

RDS수신기의 대체주파수 고속 서치 방법Alternative frequency high speed search method of RDS receiver

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

제3도는 전계강도 변화 예시도,3 is an illustration of the change in electric field strength,

제4도의 (가)는 AF서치 타이밍도이고, (나)는 뮤트 타이밍도,(A) of FIG. 4 is an AF search timing diagram, (b) a mute timing chart,

제5도는 PLL의 1주기 타이밍도,5 is a timing diagram of one cycle of the PLL,

제6도는 본 발명의 대체주파수 고속 서치 방법이 적용되는 RDS수신기의 블록도,6 is a block diagram of an RDS receiver to which an alternative frequency fast search method of the present invention is applied;

제7도는 본 발명에 따른 AF서치영역 분할도.7 is an AF search region division diagram according to the present invention.

Claims (1)

마이콤(16)의 제어로 제1,2저역필터(18),(19)의 응답을 저역, 고역으로 구분하고, FM 중간주파 처리부(15)의 SD전위 역시 고속, 저속으로 처리하여 PLL데이타 송부시간 부터 SD확인까지의 시간을 단축하는 것을 특징으로 하는 RDS수신기의 대체주파수 고속 서치 방법.By controlling the microcomputer 16, the responses of the first and second low pass filters 18 and 19 are divided into low and high frequencies, and the SD potential of the FM intermediate frequency processor 15 is also processed at high speed and low speed to send PLL data. An alternative frequency high speed search method of an RDS receiver, characterized in that the time from SD to SD is shortened. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910023694A 1991-12-20 1991-12-20 Af high speed serching method of rds receiver KR950002431B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910023694A KR950002431B1 (en) 1991-12-20 1991-12-20 Af high speed serching method of rds receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910023694A KR950002431B1 (en) 1991-12-20 1991-12-20 Af high speed serching method of rds receiver

Publications (2)

Publication Number Publication Date
KR930015384A true KR930015384A (en) 1993-07-24
KR950002431B1 KR950002431B1 (en) 1995-03-20

Family

ID=19325393

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910023694A KR950002431B1 (en) 1991-12-20 1991-12-20 Af high speed serching method of rds receiver

Country Status (1)

Country Link
KR (1) KR950002431B1 (en)

Also Published As

Publication number Publication date
KR950002431B1 (en) 1995-03-20

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