KR910003972A - 변조기 및 송신기 - Google Patents

변조기 및 송신기 Download PDF

Info

Publication number
KR910003972A
KR910003972A KR1019890010847A KR890010847A KR910003972A KR 910003972 A KR910003972 A KR 910003972A KR 1019890010847 A KR1019890010847 A KR 1019890010847A KR 890010847 A KR890010847 A KR 890010847A KR 910003972 A KR910003972 A KR 910003972A
Authority
KR
South Korea
Prior art keywords
circuit
signal
piezoelectric
transmitter
oscillation
Prior art date
Application number
KR1019890010847A
Other languages
English (en)
Other versions
KR920003816B1 (ko
Inventor
요오이찌 마스다
Original Assignee
아오이 죠이찌
가부시끼가이샤 도시바
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 아오이 죠이찌, 가부시끼가이샤 도시바 filed Critical 아오이 죠이찌
Publication of KR910003972A publication Critical patent/KR910003972A/ko
Application granted granted Critical
Publication of KR920003816B1 publication Critical patent/KR920003816B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means
    • H03K17/6264—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means using current steering means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/106—M-ary FSK

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)

Abstract

내용 없음.

Description

변조기 및 송신기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 한실시예를 나타내는 회로구성도,
제2도는 제1도의 발진회로의 한 구성예를 나타내는 회로도,
제3도는 제1도의 전환회로의 한 실시예를 나타내는 회로도,

Claims (13)

  1. 복수의 압전공진자와, 진술한 복수의 압전공진자의 각각에 1대1로 대응하여 설치되고, 대응하는 압전 공진자와 어울려 각각 다른 주파수 신호를 출력하는 복수의 발진회로와, 변조되어야할 디지탈 신호치에 따라서 복수의 주파수 신호중 소정의 주파수 신호를 선택하여 변조신호로서 출력하는 전환회로를 구비한 것을 특징으로 하는 변조기.
  2. 제1항에 있어서, 복수의 압전공진자를 동일한 압진 기판상에 형성하고, 복수의 발진회로와 전환회로를 압전기판과 다른 동일한 기판상에 형성하여 이루어지는 것을 특징으로하는 변조기.
  3. 제1항에 있어서, 발진회로는, 한쌍의 트랜지스터를 구비하고, 전술한 한쌍의 트랜지스터의 각각의 콜렉터는 저항을 통하여 전원에 접속되고, 각각의 에미터는 동일한 정전류원을 통하여 접지되고, 각각의 베이스 또는 각각의 콜렉터가 압전 공진자와 점속되는 것을 특징으로하는 변조기.
  4. 제1항에 있어서, 전환회로는, 발진회로의 출력신호를 차동입력하여 증폭하는 증폭회로를 구비한 것을 특징으로하는 변조기.
  5. 제1항에 있어서, 디지탈 신호는 2가 신호이며, 압전공진자 및 방진회로수는 2개인 것을 특징으로하는 변조기.
  6. 제1항에 있어서, 디지탈 신호는 4가 신호이며, 압진공진자 및 발진회로수는 4개인 것을 특징으로하는 변조기.
  7. 복수의 압전 공진자와, 복수의 압전공진자 각각에 1대1로 대응하여 설치되고, 대응하는 압전 공진자와 어울려 각각 따른 주파수 신호를 출력하는 복수의 발진로와, 변조되어야할 디지탈 신호치에 따라서 복수의 주파수 신호중 소정의 주파수 신호를 선택하여 변조신호로서 출력하는 전환회로와, 전환회로의 출력신호를 증폭하는 전력증폭 회로를 구비한 것을 특징으로 하는 송신기.
  8. 제7항에 있어서, 복수의 압전공진자를 동일한 압전 기판상에 형성하고, 복수의 발진회로와 전환회로를 압전기판과 다른 동일한 기판상에 형성하여 된 것을 특징으로하는 송신기.
  9. 제7항에 있어서, 입력신호에 따라 복수의 발진회로, 전환회로, 전력증폭회로의 동작을 제어하는 전력제어 회로를 구비한 것을 특징으로하는 송신기.
  10. 제7항에 있어서, 발진회로는 압전 공진자의 출력신호를 차동 입력하여 그 증폭하는 증폭회로를 구비한 것을 특징으로 하는 송신기.
  11. 제7항에 있어서, 전환회로는 발진 회로의 출력신호를 차동 입력하여 증폭하는 증폭회로를 구비한 것을 특징으로 하는 송신기.
  12. 제7항에 있어서, 증폭회로의 출력 단자에 안테나를 접속하는 것을 특징으로하는 송신기.
  13. 제9항에 있어서, 출력제어 회로는 발진회로, 전환회로, 전력증폭회로의 소비전류를 “0”으로 할수 있는 것을 특징으로 하는 송신기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890010847A 1987-07-29 1989-07-29 변조기 및 송신기 KR920003816B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP88-190377 1987-07-29
JP63-190377 1988-07-29
JP19037788 1988-07-29
JP1060162A JP2925158B2 (ja) 1988-07-29 1989-03-13 変調器および送信器
JP1-60162 1989-03-13
JP89-60162 1989-03-13

Publications (2)

Publication Number Publication Date
KR910003972A true KR910003972A (ko) 1991-02-28
KR920003816B1 KR920003816B1 (ko) 1992-05-15

Family

ID=26401236

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890010847A KR920003816B1 (ko) 1987-07-29 1989-07-29 변조기 및 송신기

Country Status (7)

Country Link
US (1) US5016260A (ko)
JP (1) JP2925158B2 (ko)
KR (1) KR920003816B1 (ko)
CA (1) CA1303679C (ko)
DE (1) DE3925116A1 (ko)
FR (1) FR2635424B1 (ko)
GB (1) GB2223382B (ko)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930003996B1 (ko) * 1990-06-22 1993-05-19 주식회사 금성사 주파수 자동조절 제어시스템
US5796772A (en) * 1991-05-13 1998-08-18 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5815525A (en) * 1991-05-13 1998-09-29 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5694414A (en) * 1991-05-13 1997-12-02 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5790587A (en) * 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5887020A (en) * 1991-05-13 1999-03-23 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
DE4136205C1 (en) * 1991-11-02 1992-10-08 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De Signal processing circuit for cordless telephone - reduces signal harmonics in data transmission using Manchester decoder to extract information from received triangular signal
JP3255248B2 (ja) * 1992-12-02 2002-02-12 株式会社村田製作所 弾性表面波発振器
WO1995012945A1 (en) * 1993-11-01 1995-05-11 Omnipoint Corporation Despreading/demodulating direct sequence spread spectrum signals
JPH0818337A (ja) * 1994-06-28 1996-01-19 Murata Mfg Co Ltd Ｆｓｋ変調器
JP3395482B2 (ja) * 1995-10-06 2003-04-14 ソニー株式会社 発振回路および発振方法
GB2357643A (en) * 1999-12-21 2001-06-27 Nokia Mobile Phones Ltd A mobile phone VCO with controlled output power level
TW457762B (en) * 2000-10-02 2001-10-01 Tricome Microwave Electronics High-speed power-saving encoded M-bit FSK modulator
JP3921355B2 (ja) * 2001-05-08 2007-05-30 日本電波工業株式会社 周波数切替型高周波発振器
US20040239211A1 (en) * 2003-06-02 2004-12-02 Steve Beaudin Surface wave device with weighted transducer
JP3835696B2 (ja) * 2004-04-06 2006-10-18 セイコーエプソン株式会社 発振回路および電子機器
JP4411539B2 (ja) 2005-08-25 2010-02-10 セイコーエプソン株式会社 Ｓａｗ共振子
US7564316B2 (en) * 2005-12-23 2009-07-21 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Variable-frequency oscillator incorporating thin-film bulk acoustic resonators
JP2007201946A (ja) * 2006-01-27 2007-08-09 Epson Toyocom Corp 送信装置および送受信システム
US7786827B2 (en) 2006-11-29 2010-08-31 Epson Toyocom Corporation Surface acoustic wave device, transmitter, and transceiver
ES2578777T3 (es) * 2009-09-30 2016-08-01 Aizo Group Ag Dispositivo para modificar una tensión alterna, tensión alterna con señal de datos acoplada, procedimiento para transmitir datos, utilización de un receptor y arquitectura de comunicaciones
EP2375578A1 (de) * 2010-04-09 2011-10-12 aizo group ag Verfahren zur Datenübertragung von einem Sender zu einem Empfänger in einem Wechselspannungsnetz sowie Vorrichtung zur Datenübertragung für Wechselspannungsnetze
JP5136594B2 (ja) * 2010-05-21 2013-02-06 株式会社デンソー 弾性表面波発振器

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538521A (en) * 1939-01-31 1941-08-07 Marconi Wireless Telegraph Co Improvements in radio remote control systems
US2461456A (en) * 1944-02-11 1949-02-08 Rca Corp Frequency shift keying
US2491387A (en) * 1945-05-03 1949-12-13 Rca Corp Frequency shift keying
US2482112A (en) * 1946-01-25 1949-09-20 Howard W Johnson Carrier shift keyer
US3031527A (en) * 1959-09-08 1962-04-24 Manson Lab Inc Ultra stable frequency shift keying system
US3271588A (en) * 1963-08-07 1966-09-06 Tele Signal Corp Digital keyer for converting d. c. binary signals into two different output audio frequencies
US3406255A (en) * 1965-06-02 1968-10-15 Automatic Elect Lab Data transmission techniques using orthogonal fm signal
US3932704A (en) * 1970-08-19 1976-01-13 Coherent Communications System Corporation Coherent digital frequency shift keying system
US3824491A (en) * 1973-03-19 1974-07-16 Motorola Inc Transistor crystal oscillator with automatic gain control
CH591765A5 (ko) * 1975-10-27 1977-09-30 Suisse Horlogerie
US4110561A (en) * 1977-07-20 1978-08-29 Conrac Corporation Communication unit for code generation and voice communication
JPS5537002A (en) * 1978-08-24 1980-03-14 Fujitsu Ltd Fs modulation system
EP0051179B1 (de) * 1980-11-03 1984-09-19 Siemens Aktiengesellschaft Integrierbare-Oszillatorschaltung
JPS57121330A (en) * 1981-01-20 1982-07-28 Sony Corp Noise reduction device
US4543541A (en) * 1984-04-16 1985-09-24 Phillips Petroleum Company FSK modulation using switched outputs of two oscillators
CA1279899C (en) * 1985-08-13 1991-02-05 Notifier Company Security system with saw transmitter
US4856023A (en) * 1986-07-23 1989-08-08 Ncr Corporation System for maintaining low bit error rate in a starcoupled network of direct coupled stations
US4760351A (en) * 1986-08-22 1988-07-26 Northern Illinois University Multiple oscillator device having plural quartz resonators in a common quartz substrate

Also Published As

Publication number Publication date
DE3925116A1 (de) 1990-02-01
FR2635424B1 (fr) 1995-10-06
GB8915772D0 (en) 1989-08-31
US5016260A (en) 1991-05-14
GB2223382B (en) 1993-01-13
FR2635424A1 (fr) 1990-02-16
DE3925116C2 (ko) 1991-03-28
KR920003816B1 (ko) 1992-05-15
GB2223382A (en) 1990-04-04
JPH02124659A (ja) 1990-05-11
CA1303679C (en) 1992-06-16
JP2925158B2 (ja) 1999-07-28

Similar Documents

Publication Publication Date Title
KR910003972A (ko) 변조기 및 송신기
GB1349310A (en) Current amplifier
KR850003640A (ko) 발진기 회로
US4599526A (en) Clocked latching circuit
KR950010328A (ko) 발진기
US4949054A (en) Temperature stable oscillator
KR970024508A (ko) 발진회로 및 발진방법
US3996530A (en) Butler oscillator
KR950004710A (ko) 전압-전류 변환기
ATE202663T1 (de) Gestapeltes aktives filter
US3638223A (en) Oscillator means for driving a resonant load
JPH02216940A (ja) 変調器
US5115212A (en) Integrable variable-frequency oscillator circuit
US4066981A (en) EMP Resistant oscillator with fiber optic frequency determining means
US2946018A (en) Crystal-controlled transistor oscillator
US4533882A (en) Frequency modulator wherein modulation takes place in a feedback loop of an oscillator
US3609578A (en) Oscillator having feedback amplitude control and switchable output phase shifter
KR890005968A (ko) 세라믹 발진자를 가진 전압제어발진기
KR880001106A (ko) 트랜지스터 믹서
KR19980067973U (ko) 스위칭 회로를 이용한 전압제어발전기의 동작 제어장치
US4303890A (en) Circuit arrangement for transferring a signal
SU731552A1 (ru) Амплитудный модул тор
KR970031225A (ko) 고주파 캐리어 발진회로
EP0634834A1 (en) Linear, voltage-controlled oscillator
KR870003619A (ko) 논리게이트 수정발진기의 주파수 안정화 장치

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 19960426

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee