JPH0450784B2 - - Google Patents

Info

Publication number
JPH0450784B2
JPH0450784B2 JP23920487A JP23920487A JPH0450784B2 JP H0450784 B2 JPH0450784 B2 JP H0450784B2 JP 23920487 A JP23920487 A JP 23920487A JP 23920487 A JP23920487 A JP 23920487A JP H0450784 B2 JPH0450784 B2 JP H0450784B2
Authority
JP
Japan
Prior art keywords
wave
unit
base unit
output
modulated wave
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
JP23920487A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6481554A (en
Inventor
Hideo Sugawara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP23920487A priority Critical patent/JPS6481554A/ja
Priority to EP88115700A priority patent/EP0308964B1/fr
Priority to DE3889403T priority patent/DE3889403T2/de
Priority to US07/249,768 priority patent/US4926187A/en
Publication of JPS6481554A publication Critical patent/JPS6481554A/ja
Publication of JPH0450784B2 publication Critical patent/JPH0450784B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Bidirectional Digital Transmission (AREA)
JP23920487A 1987-09-24 1987-09-24 Microwave communication equipment Granted JPS6481554A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP23920487A JPS6481554A (en) 1987-09-24 1987-09-24 Microwave communication equipment
EP88115700A EP0308964B1 (fr) 1987-09-24 1988-09-23 Système d'identification à fréquence radio
DE3889403T DE3889403T2 (de) 1987-09-24 1988-09-23 Identifizierungssystem mit Funkfrequenzen.
US07/249,768 US4926187A (en) 1987-09-24 1988-09-26 Radio-frequency identification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23920487A JPS6481554A (en) 1987-09-24 1987-09-24 Microwave communication equipment

Publications (2)

Publication Number Publication Date
JPS6481554A JPS6481554A (en) 1989-03-27
JPH0450784B2 true JPH0450784B2 (fr) 1992-08-17

Family

ID=17041282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23920487A Granted JPS6481554A (en) 1987-09-24 1987-09-24 Microwave communication equipment

Country Status (1)

Country Link
JP (1) JPS6481554A (fr)

Also Published As

Publication number Publication date
JPS6481554A (en) 1989-03-27

Similar Documents

Publication Publication Date Title
US4926187A (en) Radio-frequency identification system
CN201435450Y (zh) 极化可重构射频识别圆极化阅读器天线
US10587438B2 (en) Method and system for controlling a modal antenna
JP7177247B2 (ja) モーダル・アンテナの制御方法およびシステム
US11682836B2 (en) Method and system for controlling a modal antenna
CN113194052B (zh) 可重构射频直接数字调制通信系统
JPH11261434A (ja) 変復調装置
CN211743401U (zh) 一种毫米波双圆极化双向数传模块及装置
JPH0450784B2 (fr)
JP5137845B2 (ja) 無線伝送装置
JP3509493B2 (ja) データ通信方式、無線ｉｃカードおよび無線ｉｃカードシステム
CN211507076U (zh) 一种基于双圆极化双向数传模块的旋转显示装置
US20200251823A1 (en) Mobile Computing Device Having a Modal Antenna
US10742332B2 (en) Transmitter-receiver comprising an electronic chip
JP3597074B2 (ja) 移動体識別受信装置
CN111049553B (zh) 一种用于iec14443非接触式卡的低功耗验证方法
JPH05276099A (ja) Ｉｄカード送受信回路
JPH04276926A (ja) 偏波変調方法
JP2516131B2 (ja) Ｉｄカ―ドシステム用送受信回路
WO2006021991A1 (fr) Appareil de communication de donnees, procede de communication de donnees et systeme de communication de donnees
JPH07162334A (ja) 二重データ伝送方法
JPH06103878B2 (ja) データ通信装置
JPS62208721A (ja) 無線装置
JPH01223860A (ja) デジタル無線通信方法
JPH02117224A (ja) 反射型マイクロ波通信装置

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees