JPS6170451U - - Google Patents
Info
- Publication number
- JPS6170451U JPS6170451U JP15433084U JP15433084U JPS6170451U JP S6170451 U JPS6170451 U JP S6170451U JP 15433084 U JP15433084 U JP 15433084U JP 15433084 U JP15433084 U JP 15433084U JP S6170451 U JPS6170451 U JP S6170451U
- Authority
- JP
- Japan
- Prior art keywords
- antennas
- counting
- antenna
- comparing
- diversity receiver
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
第１図は本考案によるダイバーシテイ受信機の
一実施例を示すブロツク図、第２図は第１図中の
一部分の変形例を示すブロツク図及び第３図は従
来例を示すブロツク図である。
１ａ〜１ｄ……アンテナ、２……ＴＶチユーナ
、３……スイツチ部、３ａ〜３ｄ……スイツチ、
５……レベルコンパレータ、７……タイミングコ
ントローラ、１０……回数カウンタ、１２……カ
ウンタタイマ、１３……回数比較器、１４……プ
リセツタブル分周器。
FIG. 1 is a block diagram showing an embodiment of the diversity receiver according to the present invention, FIG. 2 is a block diagram showing a modification of a portion of FIG. 1, and FIG. 3 is a block diagram showing a conventional example. . 1a to 1d...Antenna, 2...TV tuner, 3...Switch section, 3a to 3d...Switch,
5... Level comparator, 7... Timing controller, 10... Number counter, 12... Counter timer, 13... Number comparator, 14... Presettable frequency divider.
Claims (1)
とのできる１つのアンテナを選択するようになし
たダイバーシテイ受信機において、トリガ信号の
発生に応じて前記複数のアンテナを順番に切換え
るタイミング信号を発生するタイミング手段と、
該切換えにより順番に選択されたアンテナにより
得られる受信信号のレベルを比較して最大の受信
信号レベルのアンテナを選択する選択手段と、該
選択手段によつて選択されたアンテナがその直前
に選択されていたものと変わつたときこれを計数
する計数手段と、一定時間内における前記計数手
段による計数値と基準数とを比較する回数比較手
段と、該比較手段による比較結果により前記トリ
ガ信号の発生周期を変化させる手段とを備えるこ
と特徴とするダイバーシテイ受信機。 In a diversity receiver that selects one antenna that can obtain the best reception condition from among a plurality of antennas, a timing signal is generated to sequentially switch among the plurality of antennas in response to generation of a trigger signal. timing means;
selection means for comparing the levels of received signals obtained by the antennas sequentially selected by the switching and selecting the antenna with the highest received signal level; a counting means for counting the number of times when the value has changed from the previous one; a frequency comparison means for comparing the counted value by the counting means and a reference number within a certain period of time; A diversity receiver characterized by comprising means for changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15433084U JPH0314850Y2 (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15433084U JPH0314850Y2 (en) | 1984-10-15 | 1984-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6170451U true JPS6170451U (en) | 1986-05-14 |
| JPH0314850Y2 JPH0314850Y2 (en) | 1991-04-02 |
Family
ID=30712325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15433084U Expired JPH0314850Y2 (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314850Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01292915A (en) * | 1988-05-19 | 1989-11-27 | Sanyo Electric Co Ltd | Diversity receiver |
-
1984
- 1984-10-15 JP JP15433084U patent/JPH0314850Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01292915A (en) * | 1988-05-19 | 1989-11-27 | Sanyo Electric Co Ltd | Diversity receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0314850Y2 (en) | 1991-04-02 |
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