JPS6421543U - - Google Patents
Info
- Publication number
- JPS6421543U JPS6421543U JP1987114501U JP11450187U JPS6421543U JP S6421543 U JPS6421543 U JP S6421543U JP 1987114501 U JP1987114501 U JP 1987114501U JP 11450187 U JP11450187 U JP 11450187U JP S6421543 U JPS6421543 U JP S6421543U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- television receiver
- vehicle
- memory
- selector switch
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Details Of Television Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Mobile Radio Communication Systems (AREA)
Description
第１図は、この考案の一実施例である車両搭載
用アンテナ装置を示す概略構成図、第２図は、従
来のダイバーシテイ型の車両搭載用アンテナ装置
を示す概略構成図である。
１はアンテナ切換回路、１１はタイミング制御
回路、１２はレベル検出・比較回路、１３は高周
波切換回路、２はテレビ受像機、３は固定型アン
テナ、３Ａは回転型アンテナ、２０はアンテナ回
転装置、２１はメモリ、２１Ａ〜２１Ｄは第１〜
第４レジスタ、２２はセレクタ・スイツチ。なお
、図中、同一符号は同一または相当部分を示す。
FIG. 1 is a schematic configuration diagram showing a vehicle-mounted antenna device which is an embodiment of this invention, and FIG. 2 is a schematic diagram showing a conventional diversity type vehicle-mounted antenna device. 1 is an antenna switching circuit, 11 is a timing control circuit, 12 is a level detection/comparison circuit, 13 is a high frequency switching circuit, 2 is a television receiver, 3 is a fixed antenna, 3A is a rotating antenna, 20 is an antenna rotation device, 21 is a memory, 21A to 21D are first to
The fourth register, 22, is a selector switch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
アンテナを回転させるアンテナ回転装置と、前記
アンテナが或る所定の回転位置にあるときの情報
を個別に一時的に蓄積するメモリと、前記メモリ
の出力部にセレクタ・スイツチを介して結合され
たテレビ受像機と、前記テレビ受像機からの情報
相互間のレベルの比較をするレベル検出・比較回
路とからなり、前記レベルの比較結果に基づいて
前記セレクタ・スイツチの位置を決定することを
特徴とする車両搭載用アンテナ装置。 A single rotary antenna provided on a vehicle, an antenna rotation device for rotating the antenna, a memory for individually and temporarily storing information when the antenna is at a certain predetermined rotational position, and the memory. A television receiver connected to the output section of the television receiver via a selector switch, and a level detection/comparison circuit for comparing the levels of information from the television receiver, and based on the results of the level comparison. A vehicle-mounted antenna device, characterized in that the position of the selector switch is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987114501U JPS6421543U (en) | 1987-07-28 | 1987-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987114501U JPS6421543U (en) | 1987-07-28 | 1987-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421543U true JPS6421543U (en) | 1989-02-02 |
Family
ID=31355309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987114501U Pending JPS6421543U (en) | 1987-07-28 | 1987-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421543U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04208722A (en) * | 1990-11-30 | 1992-07-30 | Fujita Corp | Aligning device for simple radio equipment |
| WO1994019704A1 (en) * | 1993-02-26 | 1994-09-01 | Fujitsu Limited | Apparatus for measuring speed of movement in mobile communication system |
-
1987
- 1987-07-28 JP JP1987114501U patent/JPS6421543U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04208722A (en) * | 1990-11-30 | 1992-07-30 | Fujita Corp | Aligning device for simple radio equipment |
| WO1994019704A1 (en) * | 1993-02-26 | 1994-09-01 | Fujitsu Limited | Apparatus for measuring speed of movement in mobile communication system |
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