CA1124330A - Emetteur/recepteur pour transmission en duplex a voie unique - Google Patents

Emetteur/recepteur pour transmission en duplex a voie unique

Info

Publication number
CA1124330A
CA1124330A CA319,977A CA319977A CA1124330A CA 1124330 A CA1124330 A CA 1124330A CA 319977 A CA319977 A CA 319977A CA 1124330 A CA1124330 A CA 1124330A
Authority
CA
Canada
Prior art keywords
local oscillator
output
transmitter
receiver
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA319,977A
Other languages
English (en)
Inventor
Ian A. W. Vance
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STC PLC
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to CA319,977A priority Critical patent/CA1124330A/fr
Application granted granted Critical
Publication of CA1124330A publication Critical patent/CA1124330A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Transceivers (AREA)
CA319,977A 1979-01-19 1979-01-19 Emetteur/recepteur pour transmission en duplex a voie unique Expired CA1124330A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA319,977A CA1124330A (fr) 1979-01-19 1979-01-19 Emetteur/recepteur pour transmission en duplex a voie unique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA319,977A CA1124330A (fr) 1979-01-19 1979-01-19 Emetteur/recepteur pour transmission en duplex a voie unique

Publications (1)

Publication Number Publication Date
CA1124330A true CA1124330A (fr) 1982-05-25

Family

ID=4113370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA319,977A Expired CA1124330A (fr) 1979-01-19 1979-01-19 Emetteur/recepteur pour transmission en duplex a voie unique

Country Status (1)

Country Link
CA (1) CA1124330A (fr)

Similar Documents

Publication Publication Date Title
US4238850A (en) Transmitter/receiver for single channel duplex communication system
US4134068A (en) Transmitter/receivers
US5361408A (en) Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals
US5828955A (en) Near direct conversion receiver and method for equalizing amplitude and phase therein
US4776039A (en) Receiver for mobile communication systems
US4198600A (en) Demodulating system for auxiliary channel in straight-through radio frequency repeater
EP0825734A2 (fr) Emetteur-récepteur à autotest
US4811425A (en) Apparatus for reducing the effects of local oscillator leakage in mixers employed in zero IF receivers
US4107471A (en) Frequency division multiplex communications system
MXPA97006076A (en) Autoverification transceiver
KR20000052511A (ko) 변조된 알에프 신호들을 복조하기 위한 방법 및 복조기
US6397051B1 (en) Dual image-reject mixer receiver for multiple channel reception and processing
EP0046682B1 (fr) Système de communication duplex à canal unique
US6236848B1 (en) Receiver integrated circuit for mobile telephone
KR19980065854A (ko) 저주파신호 감쇄특성의 억제를 위한 무선수신기 및 그 억제방법
JPH08510368A (ja) ワイヤレスデータトランシーバ
US4646295A (en) Frequency-division multiplex communications system having grouped transmitters and receivers
US4349919A (en) Transmitter/receivers capable of contemporaneous transmission/reception
JPH05252559A (ja) ダイバーシチ送受信方式
KR100617139B1 (ko) 이동통신 단말기의 주파수 직접변환 수신기 및 이를이용한 주파수 직접변환방법
CA1124330A (fr) Emetteur/recepteur pour transmission en duplex a voie unique
JP2002077283A (ja) I/q復調装置及びi/q復調方法
JP2001156508A (ja) 3ポート回路及びダウンコンバート方法
JPH0818616A (ja) 多周波信号受信回路
JP3084545B2 (ja) 中間周波数発生方式

Legal Events

Date Code Title Description
MKEX Expiry