JPS6418321A - Information transmission and reception device - Google Patents
Information transmission and reception deviceInfo
- Publication number
- JPS6418321A JPS6418321A JP62173863A JP17386387A JPS6418321A JP S6418321 A JPS6418321 A JP S6418321A JP 62173863 A JP62173863 A JP 62173863A JP 17386387 A JP17386387 A JP 17386387A JP S6418321 A JPS6418321 A JP S6418321A
- Authority
- JP
- Japan
- Prior art keywords
- radio wave
- main antenna
- main
- terminal equipment
- sub
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title 1
Landscapes
- Near-Field Transmission Systems (AREA)
- Radio Transmission System (AREA)
Abstract
PURPOSE:To realize the wiring system where a terminal equipment is moved and extended freely by arranging plural sub antennas freely movably in contact with or in the vicinity of a radio wave shield member and transmitting/receiving a radio wave with a main antenna. CONSTITUTION:The radio wave shield member 23 surrounding the main antenna 22 is placed on a floor 31 made of concrete. Moreover, a carpet 32 is placed thereupon and office desks or the like are placed and a terminal equipment (comprising a personal computer 20-1 and a telephone set 20-2) is placed. Each terminal equipment is connected to sub antennas 24-1, 24-2 via sub radio wave transceivers 21-1, 21-2, inserted to a member 23 through the carpet 32 and a radio wave is transmitted/received with the main antenna 22. The main antenna 22 is connected to a terminal board 34 via a main radio wave transmitter- receiver 11 and connected to an opposite information source via a PBX 36 connected to a node 35 and a public line. Thus, while radio wave interference or interception is being excluded, the radio wave is transmitted/received between the main and sub antennas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173863A JPS6418321A (en) | 1987-07-14 | 1987-07-14 | Information transmission and reception device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173863A JPS6418321A (en) | 1987-07-14 | 1987-07-14 | Information transmission and reception device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6418321A true JPS6418321A (en) | 1989-01-23 |
JPH0353821B2 JPH0353821B2 (en) | 1991-08-16 |
Family
ID=15968535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173863A Granted JPS6418321A (en) | 1987-07-14 | 1987-07-14 | Information transmission and reception device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6418321A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649442A (en) * | 1994-11-28 | 1997-07-22 | Minebea Kabushiki-Kaisha | Method of manufacturing casing base for hard disc drive device |
US6885846B1 (en) * | 1997-03-31 | 2005-04-26 | Texas Instruments Incorporated | Low power wireless network |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205834A (en) * | 1983-05-09 | 1984-11-21 | Japan Radio Co Ltd | Radio communication system in radio wave shielding building |
-
1987
- 1987-07-14 JP JP62173863A patent/JPS6418321A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59205834A (en) * | 1983-05-09 | 1984-11-21 | Japan Radio Co Ltd | Radio communication system in radio wave shielding building |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649442A (en) * | 1994-11-28 | 1997-07-22 | Minebea Kabushiki-Kaisha | Method of manufacturing casing base for hard disc drive device |
US6885846B1 (en) * | 1997-03-31 | 2005-04-26 | Texas Instruments Incorporated | Low power wireless network |
Also Published As
Publication number | Publication date |
---|---|
JPH0353821B2 (en) | 1991-08-16 |
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