JPS60139360U - Indoor local area network device using wireless communication - Google Patents
Indoor local area network device using wireless communicationInfo
- Publication number
- JPS60139360U JPS60139360U JP2657484U JP2657484U JPS60139360U JP S60139360 U JPS60139360 U JP S60139360U JP 2657484 U JP2657484 U JP 2657484U JP 2657484 U JP2657484 U JP 2657484U JP S60139360 U JPS60139360 U JP S60139360U
- Authority
- JP
- Japan
- Prior art keywords
- wireless communication
- area network
- local area
- network device
- indoor local
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考宥に係わるローカルエリアネットワーク
装置の概略構成図、第２図は同上装置における中継装置
の概略構成図、第３図は同上装置−における端末装置の
概略構成図である。
Ｔ１〜Ｔｎ、’［’・・・端末装置、１０・・・中継装
置、１２−・・無指向性アンテナ、１４・・・天井、１
６・・・指向性アンテナ、２２・・・周波数変換回路、
２８・・・伝 −送制御回路。−FIG. 1 is a schematic configuration diagram of a local area network device related to this consideration, FIG. 2 is a schematic configuration diagram of a relay device in the same device, and FIG. 3 is a schematic configuration diagram of a terminal device in the same device. T1 to Tn, '['... Terminal device, 10... Relay device, 12-... Omnidirectional antenna, 14... Ceiling, 1
6... Directional antenna, 22... Frequency conversion circuit,
28...Transmission control circuit. −
Claims (1)
置した中継装置と、上記無指向性アンテナに向けて設置
した指向性アンテナを有する多数の端末装置とからなり
、上記中継装置は上記各端末装置からの送信搬送波を受
信し、周波数帯を変゛ 換して全端末装装置の受信周波
数帯で再送信する手段を備え、上記端末装置は、−送信
時に上記中継装装置との間で全二重通信を行って送信中
の伝送工′ラーを検出し、エラーの訂正電文を続けて送
信する手段と、受信時に上記訂正電文を受けたとき所定
の訂番手順ｉこ従って正しい電文を判定する手段と全備
えたことを特徴とする無線通信による屋内ローカルエリ
アネットワーク装置。 ゛ −It consists of a relay device that has an omnidirectional antenna installed on the ceiling in the center of an indoor operation area, and a number of terminal devices that have directional antennas that are installed facing the omnidirectional antenna. The terminal device receives a transmission carrier wave from the device, converts the frequency band, and retransmits it in the receiving frequency band of all the terminal devices, A means for detecting a transmission error during transmission by performing duplex communication, and continuously transmitting an error correction message, and determining the correct message according to a predetermined numbering procedure when receiving the above correction message at the time of reception. An indoor local area network device using wireless communication, characterized in that it is equipped with means for゛ −
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2657484U JPS60139360U (en) | 1984-02-24 | 1984-02-24 | Indoor local area network device using wireless communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2657484U JPS60139360U (en) | 1984-02-24 | 1984-02-24 | Indoor local area network device using wireless communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60139360U true JPS60139360U (en) | 1985-09-14 |
Family
ID=30522706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2657484U Pending JPS60139360U (en) | 1984-02-24 | 1984-02-24 | Indoor local area network device using wireless communication |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60139360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006520167A (en) * | 2003-03-07 | 2006-08-31 | エスビーシー ナレッジ ベンチャーズ リミティド パートナーシップ | Ultra-wideband wireless system and PON |
-
1984
- 1984-02-24 JP JP2657484U patent/JPS60139360U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006520167A (en) * | 2003-03-07 | 2006-08-31 | エスビーシー ナレッジ ベンチャーズ リミティド パートナーシップ | Ultra-wideband wireless system and PON |
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