JPH0455841U - - Google Patents
Info
- Publication number
- JPH0455841U JPH0455841U JP9686690U JP9686690U JPH0455841U JP H0455841 U JPH0455841 U JP H0455841U JP 9686690 U JP9686690 U JP 9686690U JP 9686690 U JP9686690 U JP 9686690U JP H0455841 U JPH0455841 U JP H0455841U
- Authority
- JP
- Japan
- Prior art keywords
- element antenna
- data
- switching circuit
- write
- control unit
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例による移動体識別装
置の全体構成を示すブロツク図、第２図は４素子
アンテナの正面図及び側面図とその指向特性を示
す図、第３図は１素子アンテナの正面図及び側面
図、第４図ａ及び第４図ｂは夫々４素子アンテナ
と１素子アンテナの入出力ポートを示す図である
。
１……ＣＰＵ、５……発振器、６……アツテネ
ータ、７，１０……切換回路、８……４素子アン
テナ、９……１素子アンテナ。
FIG. 1 is a block diagram showing the overall configuration of a mobile object identification device according to an embodiment of the present invention, FIG. 2 is a front view and side view of a four-element antenna, and a diagram showing its directional characteristics, and FIG. 3 is a diagram showing a one-element antenna. A front view and a side view of the antenna, FIGS. 4a and 4b, are diagrams showing the input/output ports of a four-element antenna and a one-element antenna, respectively. 1... CPU, 5... Oscillator, 6... Attenuator, 7, 10... Switching circuit, 8... 4 element antenna, 9... 1 element antenna.
Claims (1)
クロ波を用いてデータ伝送を行う物品識別システ
ムの書込／読出制御ユニツトにおいて、 単一の素子から成る１素子アンテナと、 多素子から成る多素子アンテナと、 前記データキヤリアに送出すべきデータを前記
１素子アンテナ又は多素子アンテナに選択的に切
換える第１の切換回路と、 前記１素子アンテナ及び多素子アンテナのいず
れかに受信される出力を前記第１の切換回路と同
時に切換える第２の切換回路と、を有することを
特徴とする物品識別システムの書込／読出制御ユ
ニツト。[Claims for Utility Model Registration] In a write/read control unit of an article identification system that transmits data using microwaves with a data carrier that holds data, a one-element antenna consisting of a single element; a multi-element antenna made up of multiple elements; a first switching circuit that selectively switches data to be sent to the data carrier to the one-element antenna or the multi-element antenna; A write/read control unit for an article identification system, comprising: a second switching circuit that switches a received output at the same time as the first switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9686690U JPH0455841U (en) | 1990-09-14 | 1990-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9686690U JPH0455841U (en) | 1990-09-14 | 1990-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0455841U true JPH0455841U (en) | 1992-05-13 |
Family
ID=31836745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9686690U Pending JPH0455841U (en) | 1990-09-14 | 1990-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0455841U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63240222A (en) * | 1987-03-27 | 1988-10-05 | Omron Tateisi Electronics Co | Inductive radio system |
| JPS6472628A (en) * | 1987-09-14 | 1989-03-17 | Hitachi Electronics | Security radio communication system equipment |
| JPH01318438A (en) * | 1988-06-20 | 1989-12-22 | Hitachi Ltd | Mobile telephone terminal system |
-
1990
- 1990-09-14 JP JP9686690U patent/JPH0455841U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63240222A (en) * | 1987-03-27 | 1988-10-05 | Omron Tateisi Electronics Co | Inductive radio system |
| JPS6472628A (en) * | 1987-09-14 | 1989-03-17 | Hitachi Electronics | Security radio communication system equipment |
| JPH01318438A (en) * | 1988-06-20 | 1989-12-22 | Hitachi Ltd | Mobile telephone terminal system |
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