JPH0434038U - - Google Patents
Info
- Publication number
- JPH0434038U JPH0434038U JP7519690U JP7519690U JPH0434038U JP H0434038 U JPH0434038 U JP H0434038U JP 7519690 U JP7519690 U JP 7519690U JP 7519690 U JP7519690 U JP 7519690U JP H0434038 U JPH0434038 U JP H0434038U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- noise
- identification means
- miute
- identification
- 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
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
Description
第１図乃至第４図はこの考案に係る車載用ラジ
オ受信機の実施例を示し、第１図は機能ブロツク
図、第２図はハードウエアのブロツク図、第３図
はフローチヤート、第４図はこの考案の他の実施
例を示すブロツク図である。
主な符号の説明、８Ａ……ミユート回路、１０
……レベル検出器、１０ａ……ハイパスフイルタ
、１０ｂ……レベル検出回路、１２……代替周波
数探索手段、１３……第１の識別手段、１４……
第２の識別手段、１５……ミユート回路制御手段
。
1 to 4 show an embodiment of the in-vehicle radio receiver according to this invention, in which FIG. 1 is a functional block diagram, FIG. 2 is a hardware block diagram, FIG. 3 is a flowchart, and FIG. The figure is a block diagram showing another embodiment of this invention. Explanation of main symbols, 8A... Mute circuit, 10
...Level detector, 10a...High pass filter, 10b...Level detection circuit, 12...Alternative frequency search means, 13...First identification means, 14...
Second identification means, 15...Mute circuit control means.
Claims (1)
が受信可能であり、且つ、受信中の周波数に対し
て代替周波数をサーチ可能にした車載用ラジオ受
信機において、 受信した電波の強さが予め定められたレベル以
上か否かを識別する第１の識別手段と、所定の周
波数以上のノイズを検出するノイズ検出器と、前
記ノイズ検出器の検出したノイズレベルが予めき
められたレベル以上であるか否かを識別する第２
の識別手段と ミユート回路と、サーチ中に前記
第１の識別手段の識別結果と第２の識別手段の識
別結果とに基づき前記ミユート回路を制御するミ
ユート回路制御手段とで構成したことを特徴とす
る車載用ラジオ受信機。[Scope of Claim for Utility Model Registration] An in-vehicle radio receiver capable of receiving data from the Radio Data System and capable of searching for an alternative frequency to the frequency currently being received; a first identification means for identifying whether the noise level is above a predetermined level; a noise detector for detecting noise having a frequency above a predetermined frequency; and a noise level detected by the noise detector is above a predetermined level. The second to identify whether
It is characterized by comprising: an identification means, a miute circuit, and a miute circuit control means for controlling the miute circuit during a search based on the identification result of the first identification means and the identification result of the second identification means. In-vehicle radio receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075196U JP2560608Y2 (en) | 1990-07-17 | 1990-07-17 | Car radio receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990075196U JP2560608Y2 (en) | 1990-07-17 | 1990-07-17 | Car radio receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434038U true JPH0434038U (en) | 1992-03-19 |
| JP2560608Y2 JP2560608Y2 (en) | 1998-01-26 |
Family
ID=31615563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990075196U Expired - Lifetime JP2560608Y2 (en) | 1990-07-17 | 1990-07-17 | Car radio receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2560608Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647122A (en) * | 1979-09-26 | 1981-04-28 | Clarion Co Ltd | Automatic channel selector |
| JPS6490609A (en) * | 1987-09-30 | 1989-04-07 | Clarion Co Ltd | Rds automatic tracking system |
| JPH01160221A (en) * | 1987-12-17 | 1989-06-23 | Pioneer Electron Corp | Method for selecting receiving frequency in rds receiver |
| JPH01160222A (en) * | 1987-12-17 | 1989-06-23 | Pioneer Electron Corp | Method for selecting receiving frequency in rds receiver |
-
1990
- 1990-07-17 JP JP1990075196U patent/JP2560608Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5647122A (en) * | 1979-09-26 | 1981-04-28 | Clarion Co Ltd | Automatic channel selector |
| JPS6490609A (en) * | 1987-09-30 | 1989-04-07 | Clarion Co Ltd | Rds automatic tracking system |
| JPH01160221A (en) * | 1987-12-17 | 1989-06-23 | Pioneer Electron Corp | Method for selecting receiving frequency in rds receiver |
| JPH01160222A (en) * | 1987-12-17 | 1989-06-23 | Pioneer Electron Corp | Method for selecting receiving frequency in rds receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2560608Y2 (en) | 1998-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |