JPS5861578U - Audio subcarrier separation circuit - Google Patents
Audio subcarrier separation circuitInfo
- Publication number
- JPS5861578U JPS5861578U JP15591581U JP15591581U JPS5861578U JP S5861578 U JPS5861578 U JP S5861578U JP 15591581 U JP15591581 U JP 15591581U JP 15591581 U JP15591581 U JP 15591581U JP S5861578 U JPS5861578 U JP S5861578U
- Authority
- JP
- Japan
- Prior art keywords
- audio subcarrier
- separation circuit
- audio
- circuit
- trap 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.)
- Granted
Links
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図は従来の音声副搬送波分離回路を用いたＳＨＦ受
信機のブロック図、第２図は、侠来の音声副搬送波分離
回路及びこの考案による音声副搬送波分離回路に供給さ
れる重畳信号を示す図、第３図ａは従来の音声副搬送波
分離回路の振幅−周波数特性図、第３図すはこの考案に
よる音声副搬送波分離回路の振幅−周波数特性図、第４
図はこの考案による音声副搬送波分離回路のブロック図
、第５図は同分離回路に用いるバンドパスフィルタの入
力インピーダンス−周波特性図、第６図は同分離回路に
用いる分離部の減衰量−周波数特性図、第７図は同分離
回路の減衰量−周波数特性図である。
２０・・・・・・入力端子、２２・・曲映像端子、２３
乃至２６・・・・・・トラップ回路、３１乃至３４・・
・・・・バンドパスフィルタ。−Fig. 1 is a block diagram of an SHF receiver using a conventional audio subcarrier separation circuit, and Fig. 2 shows a superimposed signal supplied to the audio subcarrier separation circuit of the present invention and the audio subcarrier separation circuit of this invention. 3A is an amplitude-frequency characteristic diagram of a conventional audio subcarrier separation circuit, FIG. 3A is an amplitude-frequency characteristic diagram of an audio subcarrier separation circuit according to this invention, and FIG.
Figure 5 is a block diagram of the audio subcarrier separation circuit according to this invention, Figure 5 is an input impedance-frequency characteristic diagram of the bandpass filter used in the separation circuit, and Figure 6 is the attenuation vs. frequency of the separation section used in the separation circuit. FIG. 7 is an attenuation-frequency characteristic diagram of the separation circuit. 20...Input terminal, 22...Song video terminal, 23
to 26... trap circuit, 31 to 34...
...Band pass filter. −
Claims (1)
が供給される入力端子と、映像端子との間に、各音声副
搬送波に対するトラップ回路を直列に設け、これらトラ
ップ回路の入力側にそのトラップ回路と同一の音声副搬
送波に対するバンドパスフィルタを設け、上記各−トラ
ップ回路は対応する音声副搬送波の中心周波数を共振周
波数とし、上記各バンドパスフィルタは対応する音声副
搬送波を通過させる通過帯域を有することを特徴とする
音声副搬送波分離回路。A trap circuit for each audio subcarrier is provided in series between the input terminal to which a signal in which multiple audio subcarriers and video signals are superimposed is supplied, and the video terminal, and the trap circuit is connected to the input side of these trap circuits. A bandpass filter for the same audio subcarrier as the trap circuit is provided, each trap circuit has a resonance frequency set to the center frequency of the corresponding audio subcarrier, and each bandpass filter has a passband for passing the corresponding audio subcarrier. An audio subcarrier separation circuit comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591581U JPS5861578U (en) | 1981-10-19 | 1981-10-19 | Audio subcarrier separation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591581U JPS5861578U (en) | 1981-10-19 | 1981-10-19 | Audio subcarrier separation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5861578U true JPS5861578U (en) | 1983-04-25 |
| JPS618701Y2 JPS618701Y2 (en) | 1986-03-18 |
Family
ID=29948478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15591581U Granted JPS5861578U (en) | 1981-10-19 | 1981-10-19 | Audio subcarrier separation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5861578U (en) |
-
1981
- 1981-10-19 JP JP15591581U patent/JPS5861578U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS618701Y2 (en) | 1986-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58121473U (en) | audio multiplex receiver | |
| JPS5861578U (en) | Audio subcarrier separation circuit | |
| JPS60145775U (en) | Color television receiver filter circuit | |
| JPS6077166U (en) | Audio intermediate frequency circuit for television receivers | |
| JPS58190698U (en) | Distortion sound formation circuit | |
| JPS6123775U (en) | tuner unit | |
| JPS5939575U (en) | noise reduction circuit | |
| JPS60119168U (en) | television signal receiver | |
| JPS59129272U (en) | television receiver | |
| JPS5883874U (en) | television receiver | |
| JPS5816927U (en) | Intermediate frequency filter circuit for television receivers | |
| JPS6052738U (en) | FM receiver | |
| JPS619966U (en) | Ceramic disk discriminator circuit for audio demodulation | |
| JPS59125179U (en) | SECAM color signal discrimination circuit | |
| JPS6035624U (en) | automatic volume adjustment device | |
| JPH0344924U (en) | ||
| JPS61126633U (en) | ||
| JPS6064676U (en) | Audio carrier frequency discrimination circuit in television receiver for multi-system reception | |
| JPS6027597U (en) | speaker system | |
| JPS58135170U (en) | monitor tv receiver | |
| JPS6040010U (en) | Audio signal connection code | |
| JPS588270U (en) | Intermediate frequency filter circuit for television audio signals | |
| JPS63114573U (en) | ||
| JPS6027574U (en) | color monitor television | |
| JPS617140U (en) | FM receiver |