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KR920001883A - 무선 수신기 - Google Patents

무선 수신기 Download PDF

Info

Publication number
KR920001883A
KR920001883A KR1019910010643A KR910010643A KR920001883A KR 920001883 A KR920001883 A KR 920001883A KR 1019910010643 A KR1019910010643 A KR 1019910010643A KR 910010643 A KR910010643 A KR 910010643A KR 920001883 A KR920001883 A KR 920001883A
Authority
KR
South Korea
Prior art keywords
radio receiver
noise signal
signal
input
acoustic signal
Prior art date
Application number
KR1019910010643A
Other languages
English (en)
Inventor
쇠펠 페터
Original Assignee
프레데릭 얀 스미트
엔.브이.필립스 글로아이람펜파브리켄
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 프레데릭 얀 스미트, 엔.브이.필립스 글로아이람펜파브리켄 filed Critical 프레데릭 얀 스미트
Publication of KR920001883A publication Critical patent/KR920001883A/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317—Testing of digital circuits
    • G01R31/31708—Analysis of signal quality
    • G01R31/3171—BER [Bit Error Rate] test
    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/23—Indication means, e.g. displays, alarms, audible means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Quality & Reliability (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Structure Of Receivers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

내용 없음

Description

무선 수신기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 무선 수신기를 나타내는 도면.

Claims (7)

  1. 음향 신호 발생 장치를 갖는 무선 수신기에 있어서, 음향 신호는 설정된 수신 특성에 따라 발생하는 노이즈 신호인 것을 특징으로 하는 무선 수신기.
  2. 제1항에 있어서, 노이즈 신호는 입력 특성의 소정 한계치가 미달된 후에 발생하는 것을 특징으로 하는 무선 수신기.
  3. 제1항 또는 2항에 있어서, 노이즈 신호의 강도는 수신 특성에 역비례하여 제어되는 것을 특징으로 하는 무선 수신기.
  4. 제1항 내지 제3항중의 어느 한항에 있어서, 디지탈 무선 수신기는 음성 합성기의 입력 파라미터를 변경함으로서 노이즈 신호를 발생하는 방법을 포함하는 것을 특징으로 하는 무선 수신기.
  5. 제1항 내지 4항중의 어느 한항에 있어서, 비트 에러율은 수신 특성을 측정하기 위해 정해지는 것을 특징으로 하는 무선 수신기.
  6. 제1항 내지 4항중의 어느 한항에 있어서, 입력 신호의 S/N비는 수신 특성을 측정하기 위해 정해지는 것을 특징으로 하는 무선 수신기.
  7. 제1항 내지 6항중의 어느 한항에 있어서, 음향 신호는 무선 수신기와 관계된 전송기에서 개시되는 것을 특징으로 하는 무선 수신기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910010643A 1990-06-29 1991-06-26 무선 수신기 KR920001883A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4020694.7 1990-06-29
DE4020694A DE4020694A1 (de) 1990-06-29 1990-06-29 Funkempfaenger mit akustischem signal

Publications (1)

Publication Number Publication Date
KR920001883A true KR920001883A (ko) 1992-01-30

Family

ID=6409307

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910010643A KR920001883A (ko) 1990-06-29 1991-06-26 무선 수신기

Country Status (4)

Country Link
EP (1) EP0464911A3 (ko)
JP (1) JPH04233828A (ko)
KR (1) KR920001883A (ko)
DE (1) DE4020694A1 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327457A (en) * 1991-09-13 1994-07-05 Motorola, Inc. Operation indicative background noise in a digital receiver
US5471650A (en) * 1993-01-07 1995-11-28 Northern Telecom Limited Radio link parameter control in wireless personal communications system
US5809414A (en) * 1995-11-22 1998-09-15 Northern Telecom Limited User out-of-range indication for digital wireless systems
EP0895678A2 (en) * 1996-03-12 1999-02-10 Ericsson Inc. Method and apparatus for antenna realignment in a mobile radiotelephone using an injected audio signal
US5864799A (en) * 1996-08-08 1999-01-26 Motorola Inc. Apparatus and method for generating noise in a digital receiver
FR2766647B1 (fr) * 1997-07-24 1999-11-12 Wavecom Sa Dispositif de radiocommunication mobile delivrant un signal audible representatif de la qualite de la reception, et procede correspondant
GB2328842B (en) * 1997-08-29 2002-06-19 Nokia Mobile Phones Ltd Monitoring signal quality in a wireless local loop communication system
GB2330493A (en) * 1997-10-18 1999-04-21 Motorola Ltd Digital receiver in which user is audibly informed on drop in signal quality
GB0104282D0 (en) * 2001-02-21 2001-04-11 Cambridge Silicon Radio Ltd Communication system
DE10130052A1 (de) * 2001-06-21 2003-01-16 Harman Becker Automotive Sys Frequenzsuche in einem Rundfunkempfänger
DE10132322A1 (de) * 2001-07-06 2003-01-30 Harman Becker Automotive Sys Verfahren zum Prüfen des Empfangs auf alternativen Empfangsfrequenzen bei einem Autobestrundfunkempfänger sowie Autobestrundfunkempfänger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241236A (en) * 1978-11-02 1980-12-23 Bell Telephone Laboratories, Incorporated Noise range indicating system
GB2122827B (en) * 1979-09-04 1984-06-27 Philips Nv Radio receiver including a muting circuit
JPS623536A (ja) * 1985-06-29 1987-01-09 Oki Electric Ind Co Ltd 移動体データ通信の良否判定装置
JPH01321739A (ja) * 1988-06-24 1989-12-27 Nec Corp セルラー方式移動通信のチャネル切替方式

Also Published As

Publication number Publication date
JPH04233828A (ja) 1992-08-21
EP0464911A2 (de) 1992-01-08
DE4020694A1 (de) 1992-01-02
EP0464911A3 (en) 1992-11-25

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19910626

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid