JPS62159033U - - Google Patents
Info
- Publication number
- JPS62159033U JPS62159033U JP4623686U JP4623686U JPS62159033U JP S62159033 U JPS62159033 U JP S62159033U JP 4623686 U JP4623686 U JP 4623686U JP 4623686 U JP4623686 U JP 4623686U JP S62159033 U JPS62159033 U JP S62159033U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- noise ratio
- detection means
- preset level
- antennas
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Description
図面は本考案に係る受信ダイバーシチ装置の一
実施例を示すブロツク図である。
１…第１の受信アンテナ、２…第２の受信アン
テナ、３…アンテナ切換回路、４…受信機、５…
Ｓ／Ｎ検出回路。
The drawing is a block diagram showing an embodiment of a receive diversity device according to the present invention. DESCRIPTION OF SYMBOLS 1...First receiving antenna, 2...Second receiving antenna, 3...Antenna switching circuit, 4...Receiver, 5...
S/N detection circuit.
Claims (1)
ンテナと、 これらの受信アンテナのうちのいずれかの受信
アンテナから入力されている受信信号の信号対雑
音比が予め設定されたレベル以下であるか否かを
検出する検出手段と、 この検出手段によつて上記信号対雑音比が予め
設定されたレベル以下であることが検出された場
合に受信信号を入力するための受信ンテナを切換
えるアンテナ切換手段と を備えたことを特徴とする受信ダイバーシチ装置
。[Scope of claim for utility model registration] At least two transmitting antennas installed at appropriate intervals, and a signal-to-noise ratio of a received signal input from one of these receiving antennas in advance. detection means for detecting whether or not the signal-to-noise ratio is below a preset level; and for inputting a received signal when the detection means detects that the signal-to-noise ratio is below a preset level. 1. A reception diversity device comprising: antenna switching means for switching reception antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623686U JPS62159033U (en) | 1986-03-31 | 1986-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623686U JPS62159033U (en) | 1986-03-31 | 1986-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62159033U true JPS62159033U (en) | 1987-10-08 |
Family
ID=30865714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4623686U Pending JPS62159033U (en) | 1986-03-31 | 1986-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62159033U (en) |
-
1986
- 1986-03-31 JP JP4623686U patent/JPS62159033U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2208513A1 (en) | Receiver with an antenna switch, in which sensitivity and quality of reception is improved | |
| JPS62159033U (en) | ||
| CA2153181A1 (en) | Signal Level Measuring Apparatus | |
| JPS61146037U (en) | ||
| JPH0446731U (en) | ||
| JPS6364144U (en) | ||
| JPS5821247Y2 (en) | FM car radio | |
| JPH02138988U (en) | ||
| JPS6433240U (en) | ||
| JPH0290548U (en) | ||
| JPH0427629U (en) | ||
| JPH0232256U (en) | ||
| JPH0358047U (en) | ||
| JPS63135178U (en) | ||
| JPS63106218U (en) | ||
| JPH0292238U (en) | ||
| JPH0298535U (en) | ||
| JPH01132184U (en) | ||
| JPS623134U (en) | ||
| JPH01122638U (en) | ||
| JPS6462927A (en) | Mobile body data transmitter-receiver | |
| JPS59114640U (en) | Radio for receiving broadcasts in tunnels | |
| JPS60155236U (en) | Interference wave removal device | |
| JPS63114541U (en) | ||
| JPS62144798U (en) |