JPS5986748U - Automatic sound quality adjustment device - Google Patents
Automatic sound quality adjustment deviceInfo
- Publication number
- JPS5986748U JPS5986748U JP18148282U JP18148282U JPS5986748U JP S5986748 U JPS5986748 U JP S5986748U JP 18148282 U JP18148282 U JP 18148282U JP 18148282 U JP18148282 U JP 18148282U JP S5986748 U JPS5986748 U JP S5986748U
- Authority
- JP
- Japan
- Prior art keywords
- sound quality
- quality adjustment
- output
- intermediate frequency
- adjustment device
- 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
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の自動音質調整装置の実施例を示す回路
のブロック図、第２図は本考案における周波数と出力と
の関係をアンテナの入力信号の大きさに関連して示す周
波数特性曲線図、第３図は音質調整器の具体例、第４図
は雑音増幅器の具体例である。
なお図面に記載の記号は下記のものを示す。２・・・・
・・高周波増幅器、４・・・・・・周波数混合器、６・
・・・・・ヘッドエンド、７・・・・・・中間周波増幅
器、８・・・・・・ＦＭ検波器、９・・・・・・音質調
整器、１２・・・・・・中間周波検出器、１３・・・・
・・第１のゲート回路、１４・・・・・・雑音検出器、
１５・・・・・・雑音整流器、１６・・・・・・第２の
ゲート回路、ｆ・・・・・・周波数、■・・・・・・出
力レベル、１７・・・・・・雑音増幅器。Fig. 1 is a block diagram of a circuit showing an embodiment of the automatic sound quality adjustment device of the present invention, and Fig. 2 is a frequency characteristic curve showing the relationship between frequency and output in the present invention in relation to the magnitude of the input signal of the antenna. 3 shows a specific example of a sound quality adjuster, and FIG. 4 shows a specific example of a noise amplifier. The symbols shown in the drawings indicate the following. 2...
...High frequency amplifier, 4...Frequency mixer, 6.
...head end, 7 ... intermediate frequency amplifier, 8 ... FM detector, 9 ... sound quality adjuster, 12 ... intermediate frequency Detector, 13...
...first gate circuit, 14...noise detector,
15... Noise rectifier, 16... Second gate circuit, f... Frequency, ■... Output level, 17... Noise amplifier.
Claims (1)
波、音質調整、低周波増幅を行なう車輌用無線受信機に
おいて、中間周波出力を検出、整流した出力で制御され
る第１のゲート回路出力にて音質調整器を調整する中間
周波音質調整回路と、中間周波帯域内雑音周波数を電圧
値として検出し１、整流した出力で制御される第２のゲ
ート回路出力にて前記音質調整器を調整する雑音音質調
整回路とからなる自動音質調整装置。In a vehicle radio receiver that receives radio waves and performs intermediate frequency amplification, detection, sound quality adjustment, and low frequency amplification via the front end, the intermediate frequency output is detected and the rectified output is controlled by the first gate circuit output. an intermediate frequency sound quality adjustment circuit that adjusts the sound quality adjuster using a second gate circuit that detects the noise frequency within the intermediate frequency band as a voltage value, and adjusts the sound quality adjuster using the output of a second gate circuit that is controlled by the rectified output. An automatic sound quality adjustment device consisting of a noise sound quality adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18148282U JPS5986748U (en) | 1982-11-30 | 1982-11-30 | Automatic sound quality adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18148282U JPS5986748U (en) | 1982-11-30 | 1982-11-30 | Automatic sound quality adjustment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5986748U true JPS5986748U (en) | 1984-06-12 |
Family
ID=30393245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18148282U Pending JPS5986748U (en) | 1982-11-30 | 1982-11-30 | Automatic sound quality adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5986748U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49110205A (en) * | 1973-02-20 | 1974-10-21 | ||
| JPS5233209B2 (en) * | 1972-10-06 | 1977-08-26 |
-
1982
- 1982-11-30 JP JP18148282U patent/JPS5986748U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233209B2 (en) * | 1972-10-06 | 1977-08-26 | ||
| JPS49110205A (en) * | 1973-02-20 | 1974-10-21 |
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