JPH0412725U - - Google Patents
Info
- Publication number
- JPH0412725U JPH0412725U JP5385490U JP5385490U JPH0412725U JP H0412725 U JPH0412725 U JP H0412725U JP 5385490 U JP5385490 U JP 5385490U JP 5385490 U JP5385490 U JP 5385490U JP H0412725 U JPH0412725 U JP H0412725U
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- field strength
- characteristic correction
- frequency characteristic
- circuit
- 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
- 230000005684 electric field Effects 0.000 claims 11
- 230000005236 sound signal Effects 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 1
Description
第１図は本考案に係わるラジオ受信機の要部ブ
ロツク図、第２図はハイカツト特性変更回路の説
明図、第３図は設定されているハイカツト特性と
、高域のゲインが大、中、小の場合における等価
的なハイカツト特性の説明図、第４図は本考案に
係わる別の実施例を示すラジオ受信機のブロツク
図、第５図はハイカツト、セパレーシヨンの説明
図である。
１８……ハイカツト回路、１９……グラフイツ
クイコライザ、２０……レベルメータ回路、２１
……ハイカツト特性変更回路、２２……マイコン
。
Fig. 1 is a block diagram of the main parts of the radio receiver according to the present invention, Fig. 2 is an explanatory diagram of the high-cut characteristic changing circuit, and Fig. 3 shows the set high-cut characteristics and the high-frequency gain, large, medium, high-frequency gain, FIG. 4 is a block diagram of a radio receiver showing another embodiment of the present invention. FIG. 5 is an explanatory diagram of high-cut characteristics and separation. 18...High cut circuit, 19...Graphic equalizer, 20...Level meter circuit, 21
...High-cut characteristic changing circuit, 22...Microcomputer.
Claims (1)
、 受信電界強度が設定値以下の弱電界になつた時
、電界強度が弱くなるにつれて音声信号の高域減
衰量を増大させるハイカツト回路と、 入力された高域の周波数特性補正量に基づいて
音声信号の高域特性を補正する周波数特性補正回
路と、 受信電界強度が前記設定値以下になつた時、周
波数特性補正回路に入力する高域の周波数特性補
正量を変更する周波数特性補正量変更回路を有す
ることを特徴とするラジオ受信機。 (2) 受信電界強度を検出する電界強度検出部と
、 受信電界強度が設定値以下の弱電界になつた時
、電界強度が弱くなるにつれて音声信号の高域減
衰量を増大させるハイカツト回路と、 設定された高域の周波数特性補正量に基づいて
音声信号の高域特性を制御する周波数特性補正回
路と、 受信電界強度が前記設定値以下になつた時、ハ
イカツト回路による高域の減衰量を前記設定され
ている高域の周波数特性補正量に応じて変更する
ハイカツト量変更回路を有することを特徴とする
ラジオ受信機。[Claims for Utility Model Registration] (1) An electric field strength detection unit that detects the received electric field strength, and when the received electric field strength becomes a weak electric field below a set value, high-frequency attenuation of the audio signal as the electric field strength weakens. a high-cut circuit that increases the amount of high-frequency characteristic correction; a frequency characteristic correction circuit that corrects the high-frequency characteristic of the audio signal based on the input high-frequency characteristic correction amount; A radio receiver comprising a frequency characteristic correction amount changing circuit that changes a high frequency characteristic correction amount input to the characteristic correction circuit. (2) an electric field strength detection unit that detects the received electric field strength; and a high-cut circuit that increases the high-frequency attenuation of the audio signal as the electric field strength becomes weaker when the received electric field strength becomes a weak electric field below a set value; A frequency characteristic correction circuit that controls the high frequency characteristics of an audio signal based on a set high frequency characteristic correction amount, and a high frequency attenuation amount by a high cut circuit when the received electric field strength becomes less than the set value. A radio receiver comprising a high-cut amount changing circuit that changes according to the set high-frequency characteristic correction amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5385490U JPH0412725U (en) | 1990-05-23 | 1990-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5385490U JPH0412725U (en) | 1990-05-23 | 1990-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412725U true JPH0412725U (en) | 1992-01-31 |
Family
ID=31575400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5385490U Pending JPH0412725U (en) | 1990-05-23 | 1990-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004004145A1 (en) * | 2002-06-28 | 2004-01-08 | Kabushiki Kaisha Toyota Jidoshokki | Receiver |
-
1990
- 1990-05-23 JP JP5385490U patent/JPH0412725U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004004145A1 (en) * | 2002-06-28 | 2004-01-08 | Kabushiki Kaisha Toyota Jidoshokki | Receiver |
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