JPS6190345U - - Google Patents
Info
- Publication number
- JPS6190345U JPS6190345U JP17612484U JP17612484U JPS6190345U JP S6190345 U JPS6190345 U JP S6190345U JP 17612484 U JP17612484 U JP 17612484U JP 17612484 U JP17612484 U JP 17612484U JP S6190345 U JPS6190345 U JP S6190345U
- Authority
- JP
- Japan
- Prior art keywords
- amplitude
- output
- modulator
- low
- control signal
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000005236 sound signal Effects 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 description 2
Landscapes
- Stereo-Broadcasting Methods (AREA)
Description
第１図は本考案のＡＭステレオ信号伝送装置の
変調器、第２図は従来のＡＭステレオ信号伝送装
置の変調器である。
３……マトリクス回路、４……直交変調器、５
……エンベロープ検波器、６……振幅制御信号生
成回路、９……低域フイルタ、１０……乗算器、
１１……リミツタ、１２……振幅変調器。
FIG. 1 shows a modulator of an AM stereo signal transmission apparatus according to the present invention, and FIG. 2 shows a modulator of a conventional AM stereo signal transmission apparatus. 3... Matrix circuit, 4... Quadrature modulator, 5
... Envelope detector, 6 ... Amplitude control signal generation circuit, 9 ... Low-pass filter, 10 ... Multiplier,
11...limiter, 12...amplitude modulator.
Claims (1)
トリクス回路と、これらの信号をそれぞれ変調信
号として直交変調する直交変調器と、この直交変
調器の出力のエンベロープを得るエンベロープ検
波器と、振幅制御信号を生成する振幅制御信号生
成回路と、この振幅制御信号の低域成分を通過す
る低域フイルタと、この低域フイルタの出力と前
記エンベロープ検波器の出力とを乗算する乗算器
と、前記直交変調器の出力より振幅一定で且つ位
相変調された搬送波を得るリミツタと、前記乗算
器の出力で前記搬送波を振幅変調する振幅変調器
とを具備することを特徴とするＡＭステレオ信号
の変調器。 A matrix circuit that generates a sum signal and a difference signal of left and right audio signals L and R, a quadrature modulator that orthogonally modulates these signals as modulation signals, an envelope detector that obtains the envelope of the output of this quadrature modulator, and an amplitude an amplitude control signal generation circuit that generates a control signal; a low-pass filter that passes a low-frequency component of the amplitude control signal; a multiplier that multiplies the output of the low-pass filter by the output of the envelope detector; An AM stereo signal modulator comprising: a limiter that obtains a carrier wave whose amplitude is constant and phase modulated from the output of a quadrature modulator; and an amplitude modulator that modulates the amplitude of the carrier wave using the output of the multiplier. .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17612484U JPS6190345U (en) | 1984-11-19 | 1984-11-19 | |
| US06/691,793 US4716590A (en) | 1984-01-17 | 1985-01-16 | AM stereo transmission method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17612484U JPS6190345U (en) | 1984-11-19 | 1984-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6190345U true JPS6190345U (en) | 1986-06-12 |
Family
ID=30733721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17612484U Pending JPS6190345U (en) | 1984-01-17 | 1984-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6190345U (en) |
-
1984
- 1984-11-19 JP JP17612484U patent/JPS6190345U/ja active Pending
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