JPH0416667U - - Google Patents
Info
- Publication number
- JPH0416667U JPH0416667U JP5719890U JP5719890U JPH0416667U JP H0416667 U JPH0416667 U JP H0416667U JP 5719890 U JP5719890 U JP 5719890U JP 5719890 U JP5719890 U JP 5719890U JP H0416667 U JPH0416667 U JP H0416667U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- signal
- controlled oscillator
- audio signal
- output 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 claims 3
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例の構成を示すブロツ
ク図。第２図乃至第４図は本考案の一実施例の作
用の説明に供する波形図であり、第２図は無変調
、時間軸変動なしの場合を示し、第３図は無変調
、時間軸変動ありの場合を示し、第４図は無変調
、時間軸変動補正の場合を示す。第５図は従来例
の構成を示すブロツク図。
１……位相比較器、２および４……ローパスフ
イルタ、３……電圧制御発信器、５……増幅器、
６……混合器。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. 2 to 4 are waveform diagrams for explaining the operation of an embodiment of the present invention. FIG. 2 shows a case with no modulation and no time axis fluctuation, and FIG. 3 shows a case with no modulation and no time axis fluctuation. The case with fluctuation is shown, and FIG. 4 shows the case with no modulation and time axis fluctuation correction. FIG. 5 is a block diagram showing the configuration of a conventional example. 1... Phase comparator, 2 and 4... Low pass filter, 3... Voltage control oscillator, 5... Amplifier,
6...Mixer.
Claims (1)
であつて、電圧制御発信器と、入力されたＦＭ音
声信号と電圧制御発信器の出力信号と位相比較す
る位相比較器と、位相比較器の出力信号を入力と
するローパスフイルタと、時間軸変動信号に応じ
た信号とローパスフイルタの出力信号とを混合し
かつ混合出力を制御電圧として電圧制御発信器へ
出力する混合器とを備えたことを特徴とする光学
器デイスク再生装置のＦＭ音声信号検波器。 An FM audio signal detector for an optical disc playback device, which includes a voltage-controlled oscillator, a phase comparator that compares the phase of an input FM audio signal with an output signal of the voltage-controlled oscillator, and an output signal of the phase comparator. and a mixer that mixes a signal corresponding to a time axis fluctuation signal and an output signal of the low-pass filter and outputs the mixed output as a control voltage to a voltage-controlled oscillator. FM audio signal detector for optical disc playback equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990057198U JP2523863Y2 (en) | 1990-06-01 | 1990-06-01 | FM audio signal detector for optical disc player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990057198U JP2523863Y2 (en) | 1990-06-01 | 1990-06-01 | FM audio signal detector for optical disc player |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0416667U true JPH0416667U (en) | 1992-02-12 |
| JP2523863Y2 JP2523863Y2 (en) | 1997-01-29 |
Family
ID=31581696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990057198U Expired - Lifetime JP2523863Y2 (en) | 1990-06-01 | 1990-06-01 | FM audio signal detector for optical disc player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523863Y2 (en) |
-
1990
- 1990-06-01 JP JP1990057198U patent/JP2523863Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523863Y2 (en) | 1997-01-29 |
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