JPS61113476U - - Google Patents
Info
- Publication number
- JPS61113476U JPS61113476U JP20096384U JP20096384U JPS61113476U JP S61113476 U JPS61113476 U JP S61113476U JP 20096384 U JP20096384 U JP 20096384U JP 20096384 U JP20096384 U JP 20096384U JP S61113476 U JPS61113476 U JP S61113476U
- Authority
- JP
- Japan
- Prior art keywords
- demodulator
- detection circuit
- pilot signal
- signal detection
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は第１図におけるトラツプ回路を含めた選択特
性を音声信号スペクトラムと共に示す図、第３図
は従来の復調装置回路図である。
１……多重信号復調回路、２……バンドパスフ
イルタ、３……アンプ、４……ＡＭ検波器、５，
６……弁別器、７……トラツプ回路。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
This figure shows the selection characteristics including the trap circuit in FIG. 1 together with the audio signal spectrum, and FIG. 3 is a circuit diagram of a conventional demodulator. 1...Multiple signal demodulation circuit, 2...Band pass filter, 3...Amplifier, 4...AM detector, 5,
6... Discriminator, 7... Trap circuit.
Claims (1)
重信号の復調を行なう復調装置において、前記パ
イロツト信号検出回路はＡＭ検波器の前段に３８
ＫＨｚに阻止周波数を持つトラツプ回路を含むこ
とを特徴とする復調装置。 In a demodulator that includes a pilot signal detection circuit and demodulates a television audio multiplexed signal, the pilot signal detection circuit includes a
A demodulator comprising a trap circuit having a blocking frequency at KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20096384U JPS61113476U (en) | 1984-12-26 | 1984-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20096384U JPS61113476U (en) | 1984-12-26 | 1984-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61113476U true JPS61113476U (en) | 1986-07-17 |
Family
ID=30762305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20096384U Pending JPS61113476U (en) | 1984-12-26 | 1984-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61113476U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157182A (en) * | 1984-08-28 | 1986-03-24 | Matsushita Electric Ind Co Ltd | Digital pilot detector |
-
1984
- 1984-12-26 JP JP20096384U patent/JPS61113476U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157182A (en) * | 1984-08-28 | 1986-03-24 | Matsushita Electric Ind Co Ltd | Digital pilot detector |
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