KR950028328A - 디지탈 무선 통신장치에 있어서 송수신 신호처리회로 - Google Patents
디지탈 무선 통신장치에 있어서 송수신 신호처리회로 Download PDFInfo
- Publication number
- KR950028328A KR950028328A KR1019940005106A KR19940005106A KR950028328A KR 950028328 A KR950028328 A KR 950028328A KR 1019940005106 A KR1019940005106 A KR 1019940005106A KR 19940005106 A KR19940005106 A KR 19940005106A KR 950028328 A KR950028328 A KR 950028328A
- Authority
- KR
- South Korea
- Prior art keywords
- transmission
- reception
- loop
- processing circuit
- signal processing
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract 2
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 238000003786 synthesis reaction Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
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
- 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
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- 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
-
- 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
- H04B1/44—Transmit/receive switching
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
디지탈 무선 통신장치에 있어서, 본 발명에 따른 송수신 신호처리회로에서는 송신부의 회로와 전력효율을 개선하고, 주파수표류의 문제를 해결하기 위해 헤테로다인 루프를 채용하되, 제1중간주파수에서 직교형 복조방식을 채택함으로써 기준루프를 하나로 가능하게 하였고, 따라서 기준루프 자체는 절환할 필요가 없으므로 주파수 표류의 문제를 근본적으로 제거할 수 있는 잇점이 있다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 디지탈 무선 전화기에 있어서 헤테로다인 단일 위상고착루프로 구성된 주파수합성 국부발진기와 직교형복조기를 채택한 본 발명에 의한 송수신 신호처리회로를 나타낸 블럭도이다.
Claims (3)
- 단일 주파수 채널을 송신과 수신의 일정한 시간으로 분리하여 통신하는 시분할 방식을 사용하는 통신시스템에서 스피커를 통해 입력된 신호를 신호변환하여 안테나를 통해 전파로서 전송하기 위한 송신수단과, 안테나에서 수신된 신호를 신호변환하여 사용자에게 전송하는 수신수단을 구비한 디지탈 무선 통신장치에 있어서, 수신 제2중간주파수 만큼의 오프셋을 0Hz로 하여 송수신 모드에 따라 루프 자체 주파수를 절환하지 않은 채널변환용 기준 주파수합성 제 1위상고착루프와, 고속으로 송수신 주파수를 절환하기 위한 헤테로다인 제2위상고착루프로 구성되는 주파수합성기를 포함하는 것을 특징으로 하는 송수신 신호처리회로.
- 제1항에 있어서, 상기 회로는 상기 헤테로다인 제2위상고착루프의 기준 주파수 합성루프를 단일화하기 위한 직교형 복조기를 더 포함하는 것을 특징으로 하는 송수신 신호처리회로.
- 제2항에 있어서, 상기 회로는 국부발진기의 송수신 절환을 용이하도록 하기 위해 상기 기준주파수합성루프를 절환하지 않고 상기 국부발진기의 발진대역을 절환하는 것을 특징으로 하는 송수신 신호처리회로.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940005106A KR100219709B1 (ko) | 1994-03-15 | 1994-03-15 | 디지탈무선통신장치에있어서송수신신호처리회로 |
US08/402,506 US5825813A (en) | 1994-03-15 | 1995-03-13 | Transceiver signal processor for digital cordless communication apparatus |
FR9502986A FR2717643B1 (fr) | 1994-03-15 | 1995-03-15 | Processeur de signaux d'émetteur-récepteur pour appareil numérique de télécommunications sans fil. |
DE19509260A DE19509260A1 (de) | 1994-03-15 | 1995-03-15 | Sender-Empfänger-Signalverarbeitungsvorrichtung für ein digitales schnurloses Kommunikationsgerät |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940005106A KR100219709B1 (ko) | 1994-03-15 | 1994-03-15 | 디지탈무선통신장치에있어서송수신신호처리회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950028328A true KR950028328A (ko) | 1995-10-18 |
KR100219709B1 KR100219709B1 (ko) | 1999-09-01 |
Family
ID=19378915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940005106A KR100219709B1 (ko) | 1994-03-15 | 1994-03-15 | 디지탈무선통신장치에있어서송수신신호처리회로 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5825813A (ko) |
KR (1) | KR100219709B1 (ko) |
DE (1) | DE19509260A1 (ko) |
FR (1) | FR2717643B1 (ko) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6087865A (en) * | 1994-12-22 | 2000-07-11 | Anritsu Company | Programmable frequency divider |
WO1997016012A1 (en) * | 1995-10-23 | 1997-05-01 | Momentum Microsystems, Inc. | Broadband, low power fm/fsk transceiver for wireless communications systems |
US6163568A (en) * | 1995-10-23 | 2000-12-19 | Simtek Corporation | Broadband, low power FM/FSK transceiver for wireless communications systems |
JPH09321682A (ja) * | 1996-05-27 | 1997-12-12 | Sony Corp | 通信システム,通信方法及び端末装置 |
JPH1013181A (ja) * | 1996-06-21 | 1998-01-16 | Nec Corp | Ifフィルタ自動整合方式 |
US6118984A (en) * | 1997-04-08 | 2000-09-12 | Acer Peripherals, Inc. | Dual conversion radio frequency transceiver |
JP3825540B2 (ja) * | 1997-09-05 | 2006-09-27 | 松下電器産業株式会社 | 受信機および送受信機 |
US6308048B1 (en) * | 1997-11-19 | 2001-10-23 | Ericsson Inc. | Simplified reference frequency distribution in a mobile phone |
WO1999049582A2 (en) * | 1998-03-20 | 1999-09-30 | Koninklijke Philips Electronics N.V. | Receiver with a clock signal generator |
US6002920A (en) * | 1998-05-19 | 1999-12-14 | Northrop Grumman Corporation | Method and device for modifying a radio frequency range of a radio transceiver |
JP3369480B2 (ja) * | 1998-07-31 | 2003-01-20 | 松下電器産業株式会社 | 無線回路装置 |
US6175724B1 (en) * | 1998-07-31 | 2001-01-16 | Motorola, Inc. | Band switchable injection oscillator and communication device using same |
DE19913066A1 (de) | 1999-03-17 | 2000-09-21 | Francotyp Postalia Gmbh | Verfahren und Anordnung zur Druckstempeleingabe in eine Frankiermaschine |
US6374155B1 (en) | 1999-11-24 | 2002-04-16 | Personal Robotics, Inc. | Autonomous multi-platform robot system |
WO2001071934A1 (en) * | 2000-03-21 | 2001-09-27 | Koninklijke Philips Electronics N.V. | Communication system with frequency modulation and with a single local oscillator |
WO2001082766A2 (en) | 2000-05-02 | 2001-11-08 | Personal Robotics, Inc. | Autonomous floor mopping apparatus |
US6671337B1 (en) | 2000-10-25 | 2003-12-30 | Koninklijke Philips Electronics N.V. | Carrier modulator for use in a transmitter or transceiver |
US6993107B2 (en) * | 2001-01-16 | 2006-01-31 | International Business Machines Corporation | Analog unidirectional serial link architecture |
DE10248043B4 (de) * | 2002-10-15 | 2018-02-08 | Intel Deutschland Gmbh | Phasenregelschleife zur Frequenzmodulation |
JP4045978B2 (ja) * | 2003-02-25 | 2008-02-13 | 松下電器産業株式会社 | デジタル信号送受信機 |
US7747237B2 (en) * | 2004-04-09 | 2010-06-29 | Skyworks Solutions, Inc. | High agility frequency synthesizer phase-locked loop |
JP4031470B2 (ja) * | 2004-07-05 | 2008-01-09 | 松下電器産業株式会社 | 送信装置、受信装置、及び信号伝送装置並びに信号伝送方法 |
KR20120070807A (ko) * | 2010-12-22 | 2012-07-02 | 한국전자통신연구원 | 무선 통신 장치 및 무선 통신 방법 |
US8611842B2 (en) * | 2011-11-04 | 2013-12-17 | Broadcom Corporation | Apparatus and method for fast phase locked loop (PLL) settling for cellular time-division duplex (TDD) communications systems |
US9673847B1 (en) | 2015-11-25 | 2017-06-06 | Analog Devices, Inc. | Apparatus and methods for transceiver calibration |
US9979408B2 (en) | 2016-05-05 | 2018-05-22 | Analog Devices, Inc. | Apparatus and methods for phase synchronization of phase-locked loops |
US11082051B2 (en) | 2018-05-11 | 2021-08-03 | Analog Devices Global Unlimited Company | Apparatus and methods for timing offset compensation in frequency synthesizers |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4061973A (en) * | 1976-03-25 | 1977-12-06 | Motorola, Inc. | Synthesizer |
GB2024546B (en) * | 1978-05-26 | 1982-12-22 | Racal Group Services Ltd | Frequency synthesisers |
US4862107A (en) * | 1986-03-18 | 1989-08-29 | International Mobile Machines Corporation | Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels |
GB8806194D0 (en) * | 1988-03-16 | 1988-04-13 | Shaye Communications Ltd | Transceivers |
JPH04313917A (ja) * | 1991-03-29 | 1992-11-05 | Mitsubishi Electric Corp | ダブルpll装置 |
US5319680A (en) * | 1991-09-03 | 1994-06-07 | The Whitaker Corporation | Phase locked loop synchronization system for use in data communications |
US5144254A (en) * | 1991-09-30 | 1992-09-01 | Wilke William G | Dual synthesizer including programmable counters which are controlled by means of calculated input controls |
US5150078A (en) * | 1991-11-29 | 1992-09-22 | Hughes Aircraft Company | Low noise fine frequency step synthesizer |
US5422604A (en) * | 1993-12-07 | 1995-06-06 | Nec Corporation | Local oscillation frequency synthesizer for vibration suppression in the vicinity of a frequency converging value |
-
1994
- 1994-03-15 KR KR1019940005106A patent/KR100219709B1/ko not_active IP Right Cessation
-
1995
- 1995-03-13 US US08/402,506 patent/US5825813A/en not_active Expired - Fee Related
- 1995-03-15 FR FR9502986A patent/FR2717643B1/fr not_active Expired - Fee Related
- 1995-03-15 DE DE19509260A patent/DE19509260A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2717643A1 (fr) | 1995-09-22 |
DE19509260A1 (de) | 1995-09-21 |
US5825813A (en) | 1998-10-20 |
KR100219709B1 (ko) | 1999-09-01 |
FR2717643B1 (fr) | 1997-01-03 |
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