KR960009438A - 디지탈 무선전화기의 송수신 신호처리 회로 - Google Patents

디지탈 무선전화기의 송수신 신호처리 회로 Download PDF

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Publication number
KR960009438A
KR960009438A KR1019940019179A KR19940019179A KR960009438A KR 960009438 A KR960009438 A KR 960009438A KR 1019940019179 A KR1019940019179 A KR 1019940019179A KR 19940019179 A KR19940019179 A KR 19940019179A KR 960009438 A KR960009438 A KR 960009438A
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KR
South Korea
Prior art keywords
transmission
reception
heterodyne
loop
transmitting
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Application number
KR1019940019179A
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English (en)
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KR0143023B1 (ko
Inventor
나보규
Original Assignee
김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019940019179A priority Critical patent/KR0143023B1/ko
Priority to NL1000901A priority patent/NL1000901C2/nl
Priority to US08/509,700 priority patent/US5657344A/en
Priority to CN95109850A priority patent/CN1085482C/zh
Publication of KR960009438A publication Critical patent/KR960009438A/ko
Application granted granted Critical
Publication of KR0143023B1 publication Critical patent/KR0143023B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 단일 주파수 채널을 송신과 수신의 일정한 시간으로 분리하여 통신하는 시분할 방식을 사용하는 통신시스템에서 스피커를 통해 입력된 신호를 변환하여 안테나를 통해 전파로서 전송하기 위한 송신수단과, 안테나에서 수신된 신호를 변환하여 사용자에게 전송하는 수신수단을 구비한 디지탈 무선통신장치에 있어서, 수신 제2국부 발진신호원을 수신모드에서 헤테로다인 소스로 활용함으로써 송수신모드에 따라 루프자체 주파수를 절환하지 않는 채널변환용 기준주파수 합성 제1위상고정루프와, 고속으로 송수신 주파수를 절환하기 위한 헤테로다인 제2위상고정루프로 구성되는 주파수 합성기를 포함하는 것을 특징으로 한다.

Description

디지탈 무선전화기의 송수신 신호처리 회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 디지탈 무선전화기에 있어서 송신주파수 혼합변환방식을 채택한 종래의 송수신 신호 처리 회로를 나타내는 블럭도.
제2도는 디지탈 무선전화기에 있어서 송수신주파수 전환방식의 헤테로다인 이중 위상 고정루프를 채택한 종래의 송수신 신호 처리 회로를 나타내는 블럭도.
제3도는 디지탈 무선전화기에 있어서 헤테로다인 단일위상 고정루프로 구성된 주파수 합성 국부잘진기와 주파수 변별형복조기를 채택한 본 발명에 의한 송수신 신호 처리 회로를 나타내는 블럭도.

Claims (4)

  1. 단일 주파수 채널을 송신과 수신의 일정한 시간으로 분리하여 통신하는 시분할 방식을 사용하는 통신 시스템에서 스피커를 통해 입력된 신호를 변환하여 안테나를 통해 전파로서 전송하기 위한 송신수단과, 안테나에서 수신된 신호를 변환하여 사용자에게 전송하는 수신수단을 구비한 디지탈 무선통신장치에 있어서, 수신 제2국부발진신호원을 수신모드에서 헤테로다인 소스로 활용하고, 송수신모드에 따라 루프자체 주파수를 절환하지 않는 채널변환용 기준주파수 합성 제1위상 고정루프와, 고속으로 송수신 주파수를 절환하기 위한 헤테로다인 제2위상 고정루프로 구성되는 주파수 합성기를 포함하는 것을 특징으로 하는 송수신 신호 처리 회로.
  2. 제1항에 있어서, 상기 회로는 상기 헤테로다인 제2위상 고정루프의 기준주파수 합성루프를 단일화하기 위한 수신 제2국부발진신호원을 수신모드의 헤테로다인 소스로 겸용하는 것을 특징으로 하는 송수신 신호처리 회로.
  3. 제2항에 있어서, 상기 회로는 국부발진기의 송수신 절환을 용이하도록 하기 위해 상기 기준주파수 합성루프의 절환없이 상기 국부발진기의 발진대역을 절환하는 것을 특징으로 하는 송수신 신호처리 회로.
  4. 시분할 방식을 사용하는 통신 시스템내에서 스피커를 통해 입력된 신호를 변환하여 안테나를 통해 전파로서 전송하기 위한 송신수단과, 안테나에서 수신된 신호를 변환하여 사용자에게 전송하는 수신수단을 구비한 디지탈 무선통신장치에 있어서, 수신 제2국부발진신호원을 수신모드에서 헤테로다인 소스로 활용하기 위해, 송수신모드에 따라 루프자체의 주파수를 절환하지 않도록 하기 위한 채널 변환용 제1위상고정루프와, 상기 제1위상고정루프에 연결되어 송수신 주파수를 절환하기 위한 헤테로다인 제2위상고정루프를 가짐을 특징으로 하는 신호처리 회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940019179A 1994-08-03 1994-08-03 디지탈 무선전화기의 송수신 신호처리 회로 KR0143023B1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019940019179A KR0143023B1 (ko) 1994-08-03 1994-08-03 디지탈 무선전화기의 송수신 신호처리 회로
NL1000901A NL1000901C2 (nl) 1994-08-03 1995-07-28 Zend/ontvangstsignaalverwerkingsketen in een digitaal draadloos telefoontoestel.
US08/509,700 US5657344A (en) 1994-08-03 1995-07-31 Transmitting/receiving signal processing circuit in digital cordless telephone
CN95109850A CN1085482C (zh) 1994-08-03 1995-08-03 在数字无绳电话中的发射/接收信号处理电路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940019179A KR0143023B1 (ko) 1994-08-03 1994-08-03 디지탈 무선전화기의 송수신 신호처리 회로

Publications (2)

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KR960009438A true KR960009438A (ko) 1996-03-22
KR0143023B1 KR0143023B1 (ko) 1998-08-01

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Country Status (4)

Country Link
US (1) US5657344A (ko)
KR (1) KR0143023B1 (ko)
CN (1) CN1085482C (ko)
NL (1) NL1000901C2 (ko)

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Also Published As

Publication number Publication date
NL1000901C2 (nl) 1998-11-25
NL1000901A1 (nl) 1996-02-05
US5657344A (en) 1997-08-12
CN1122993A (zh) 1996-05-22
KR0143023B1 (ko) 1998-08-01
CN1085482C (zh) 2002-05-22

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