JPH0241520U - - Google Patents
Info
- Publication number
- JPH0241520U JPH0241520U JP11927088U JP11927088U JPH0241520U JP H0241520 U JPH0241520 U JP H0241520U JP 11927088 U JP11927088 U JP 11927088U JP 11927088 U JP11927088 U JP 11927088U JP H0241520 U JPH0241520 U JP H0241520U
- Authority
- JP
- Japan
- Prior art keywords
- section
- frequency
- receiving
- level
- reference level
- 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 3
- 230000035945 sensitivity Effects 0.000 claims 3
- 238000010408 sweeping Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図は本考案に基づく電子同調受信機の原理
構成を示す図、第２図は本考案の一実施例を示す
図、第３図はマイクロコンピユータの処理動作を
示すフローチヤートである。
１……受信部、２……周波数掃引部、３……レ
ベル検出部、４……基準レベル設定部、５……比
較部、６……掃引完了検出部、７……判定部。
FIG. 1 is a diagram showing the principle configuration of an electronic tuning receiver based on the present invention, FIG. 2 is a diagram showing an embodiment of the present invention, and FIG. 3 is a flowchart showing the processing operation of a microcomputer. DESCRIPTION OF SYMBOLS 1... Receiving section, 2... Frequency sweep section, 3... Level detecting section, 4... Reference level setting section, 5... Comparing section, 6... Sweep completion detecting section, 7... Judging section.
Claims (1)
により掃引して受信する際に、該受信周波数に対
して受信機の受信感度を設定する感度設定手段を
有する電子同調受信機において、 前記感度設定手段は、 前記受信周波数の信号レベルを検出するレベル
検出部３と、 前記信号レベルに対して基準レベルを設定する
基準レベル設定部４と、 前記信号レベルと前記基準レベルを比較し、該
信号レベルが小さいときのみ出力信号を送出する
比較部５と、 前記周波数掃引部２が所定の周波数範囲内の掃
引を完了したことを検出して出力信号を送出する
掃引完了検出部６と、 前記比較部５および掃引完了検出部６からのそ
れぞれの出力信号により、前記基準レベル設定部
４での基準レベルを下げて前記周波数掃引部２を
介して再び前記受信部１での受信周波数を掃引さ
せる判定部７とからなることを特徴とする電子同
調受信機。[Claims for Utility Model Registration]
In an electronically tuned receiver having a sensitivity setting means for setting the receiving sensitivity of the receiver with respect to the receiving frequency when sweeping and receiving by, the sensitivity setting means: a level for detecting the signal level of the receiving frequency. a detection section 3; a reference level setting section 4 that sets a reference level for the signal level; and a comparison section 5 that compares the signal level and the reference level and sends out an output signal only when the signal level is small. , a sweep completion detection section 6 that detects that the frequency sweep section 2 has completed sweeping within a predetermined frequency range and sends out an output signal; and respective output signals from the comparison section 5 and the sweep completion detection section 6. and a determining section 7 that lowers the reference level in the reference level setting section 4 and sweeps the reception frequency at the receiving section 1 again via the frequency sweeping section 2. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11927088U JPH0241520U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11927088U JPH0241520U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241520U true JPH0241520U (en) | 1990-03-22 |
Family
ID=31364354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11927088U Pending JPH0241520U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241520U (en) |
-
1988
- 1988-09-13 JP JP11927088U patent/JPH0241520U/ja active Pending
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