[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

KR960027458A - FM Radio Diversity Antenna Control Device - Google Patents

FM Radio Diversity Antenna Control Device Download PDF

Info

Publication number
KR960027458A
KR960027458A KR1019940036254A KR19940036254A KR960027458A KR 960027458 A KR960027458 A KR 960027458A KR 1019940036254 A KR1019940036254 A KR 1019940036254A KR 19940036254 A KR19940036254 A KR 19940036254A KR 960027458 A KR960027458 A KR 960027458A
Authority
KR
South Korea
Prior art keywords
antenna
unit
radio
frequency
tuner
Prior art date
Application number
KR1019940036254A
Other languages
Korean (ko)
Other versions
KR0136052B1 (en
Inventor
엄숭섭
Original Assignee
김주용
현대전자산업 주식회사
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 김주용, 현대전자산업 주식회사 filed Critical 김주용
Priority to KR1019940036254A priority Critical patent/KR0136052B1/en
Publication of KR960027458A publication Critical patent/KR960027458A/en
Application granted granted Critical
Publication of KR0136052B1 publication Critical patent/KR0136052B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0817—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with multiple receivers and antenna path selection
    • H04B7/082—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with multiple receivers and antenna path selection selecting best antenna path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Transmission System (AREA)
  • Noise Elimination (AREA)

Abstract

본 발명은 에프엠 라디오 주파수를 두개의 안테나로 수신하도록 하여 각각의 주파수에 대해 잡음 성분이 좋은 레벨만을 선택하도록 하는 에프엠 라디오 다이버시티 안테나 제어 장치에 관한 것으로, 일반적으로 자동차는 하나의 안테나를 사용하여 에프엠 라디오를 청취하게 되는데, 이때 안테나는 폴 안테나로 수평 주파수에 대해서는 용이하지 못하여 고주파수의 에프엠 라디오 주파수가 수신될 경우에는 많은 잡음 주파수에 방해를 받게 됨으로써 청취감이 좋지 못하게 되므로, 본 발명에서는 에프엠 라디오 주파수를 수신하는 안테나를 두개 장착하여, 이에 따라 수신되는 신호 중 잡음 성분이 없는 주파수대의 신호를 선택하도록 함으로써 청취감을 좋게 하여 제품에 대한 신뢰감을 향상시킨다.The present invention relates to an FM radio diversity antenna control apparatus for receiving an FM radio frequency by two antennas so that only a good noise component is selected for each frequency. In general, an automobile uses an FM antenna. In this case, the antenna is a pole antenna, which is not easy for the horizontal frequency, and when the FM radio frequency of high frequency is received, the noise is disturbed by many noise frequencies. Equipped with two antennas for receiving the signal, thereby selecting a signal in the frequency band without a noise component from the received signal to improve the listening feeling to improve the confidence in the product.

Description

에프엠 라디오 다이버시티 안테나 제어 장치FM Radio Diversity Antenna Control Device

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

제1도는 본 발명 에프엠 라디오 다이버시티 안테나 제어 장치를 포함한 카오디오의 구성 블럭도이다.1 is a block diagram of a car audio including the FM radio diversity antenna control apparatus of the present invention.

Claims (2)

에프엠 라디오 청취를 위한 제어장치를 구성함에 있어서, 메인 안테나(10)에서 수신되는 에프엠 라디오 주파수를 동조시키는 제1에프엠 튜너부(30)와, 서브 안테나(20)에서 수신되는 에프엠 라디오 주파수를 동조시키는 제2에프엠 튜너부(40)와, 상기 제1 및 2에프엠 튜너부(10,20)의 신호를 비교하여 고주파수 레벨을 선택하는 고주파수 레벨 비교부(50)와, 상기 고주파수 레벨 비교부(50)에 의해 선택된 신호에서 중간 주파수를 걸러 내고, 노이즈 성분을 걸러 내어 출력시키는 에프엠 신호 출력부(60)와, 상기 에프엠 신호 출력부(60)의 시그널미터단(S/METER)의 잡음 레벨의 교류 성분(AS)을 키워 상기 고주파수 레벨 비교부(50)로 입력하는 노이즈 버퍼부(70)와, 상기 제1에프엠 튜너부(30)에서 출력되는 발진 주파수(OSC)를 증폭하여 상기 제2에프엠 튜너부(40)로 입력하는 고주파수 증폭부(80)와, 상기 제1에프엠 튜너부(30)에 의한 발진 주파수(OSC)를 에프엠 발진단(FM OSC)으로 입력하여 자체 발진부(85)에 의한 발진 주파수와 비교하여 전압VT를 출력하면서 카오디오의 메인 마이컴의 제어를 받는 위상 동기 루프(90) 및 상기 위상 동기 루프(90)의 전압 VT를 저역 통과시켜 상기 제1에프엠 튜너부(30)와 제2에프엠 튜너부(40)로 입력하는 저역 통과 필터(100)를 포함하여 구성됨을 특징으로 하는 에프엠 라디오 다이버시티 안테나 제어 장치.In configuring a control device for FM radio listening, the first FM tuner unit 30 to tune the FM radio frequency received by the main antenna 10 and the FM radio frequency received by the sub-antenna 20 A high frequency level comparator 50 for selecting a high frequency level by comparing signals of the second FM tuner 40 with the first and second FM tuner parts 10 and 20, and the high frequency level comparator 50 AC signal of the noise level of the signal meter stage (S / METER) of the FM signal output unit 60 and the FM signal output unit 60 to filter out the intermediate frequency from the signal selected by The second FM tuner unit may be amplified by amplifying the noise buffer unit 70, which is raised to the high frequency level comparison unit 50, and the oscillation frequency OSC output from the first FM tuner unit 30. Enter as 40 The oscillation frequency OSC by the high frequency amplification unit 80 and the first FM tuner unit 30 is input to the FM oscillation stage FM OSC, and the voltage VT is compared with the oscillation frequency by the self oscillation unit 85. The first FM tuner unit 30 and the second FM tuner unit 40 are low-passed through the phase-locked loop 90 and the voltage VT of the phase-locked loop 90 which are controlled by the main microcomputer of the audio. FM radio diversity antenna control device characterized in that it comprises a low pass filter (100) for inputting. 제1항에 있어서, 상기 메인 안테나(10)는 폴 안테나이고, 서브 안테나(20)는 글라스 안테나임을 특징으로 하는 에프엠 라디오 다이버시티 안테나 제어 장치.2. The FM radio diversity antenna control apparatus according to claim 1, wherein the main antenna (10) is a pole antenna and the sub antenna (20) is a glass antenna. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940036254A 1994-12-23 1994-12-23 Fm radio diversity antenna KR0136052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940036254A KR0136052B1 (en) 1994-12-23 1994-12-23 Fm radio diversity antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940036254A KR0136052B1 (en) 1994-12-23 1994-12-23 Fm radio diversity antenna

Publications (2)

Publication Number Publication Date
KR960027458A true KR960027458A (en) 1996-07-22
KR0136052B1 KR0136052B1 (en) 1998-06-01

Family

ID=19403109

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940036254A KR0136052B1 (en) 1994-12-23 1994-12-23 Fm radio diversity antenna

Country Status (1)

Country Link
KR (1) KR0136052B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527511B1 (en) * 2002-11-20 2005-11-09 현대자동차주식회사 Cellular phone power level reduction system in vehicle
KR100751187B1 (en) * 2005-08-05 2007-08-22 가부시키가이샤 히다치 고쿠사이 덴키 Diversity receiver

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504065C2 (en) * 1995-03-15 1996-10-28 Volvo Ab Radio receiver for use in vehicles
EP1657830B1 (en) 2004-11-15 2008-06-18 Harman/Becker Automotive Systems GmbH Radio system and method for controlling a radio system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527511B1 (en) * 2002-11-20 2005-11-09 현대자동차주식회사 Cellular phone power level reduction system in vehicle
KR100751187B1 (en) * 2005-08-05 2007-08-22 가부시키가이샤 히다치 고쿠사이 덴키 Diversity receiver

Also Published As

Publication number Publication date
KR0136052B1 (en) 1998-06-01

Similar Documents

Publication Publication Date Title
WO1998032233A3 (en) Multi-tuner receiver
KR960027458A (en) FM Radio Diversity Antenna Control Device
US4910796A (en) Automobile antenna
US20040176057A1 (en) Receiver
JPH04277934A (en) Switching power unit
KR970072550A (en) Multifunctional diversity antenna system for vehicles
KR910008983A (en) Am radio receiver
KR940003749B1 (en) Radio system having auto turning function
KR970004315A (en) Same Broadcast Search System
JPS6041331A (en) Radio receiver
JPH03297227A (en) Radio receiver
KR100550781B1 (en) Method for Receiving Broadcast according to Area and Apparatus thereof
JPH06291688A (en) Receiver
KR920004336Y1 (en) Circuit for eliminating digital audio tunning noise
JPH0779171A (en) Receiver
KR20050010532A (en) TV/FM Radio Combination Receiving Equipment For AVN System
JP4775740B2 (en) Receiver circuit
KR940020718A (en) Satellite broadcasting receiver with radio signal reception
JP2000174653A (en) Radio receiver for double conversion system
JPH0139004Y2 (en)
JP3208167B2 (en) Composite audio equipment
JPS5989029A (en) Receiver with automatic channel selecting function
KR910013700A (en) Direct synchronous receiving circuit
KR970068553A (en) An improved tuner
JPS595730A (en) Stop signal generating circuit for searching broadcasting station

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee