JPS6428568U - - Google Patents
Info
- Publication number
- JPS6428568U JPS6428568U JP12187787U JP12187787U JPS6428568U JP S6428568 U JPS6428568 U JP S6428568U JP 12187787 U JP12187787 U JP 12187787U JP 12187787 U JP12187787 U JP 12187787U JP S6428568 U JPS6428568 U JP S6428568U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- controlling
- reference signal
- tracking
- detecting
- 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 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第1図は本考案の1実施例に於けるトラツキン
グ制御装置の主要部のブロツク図である。第2図
は一般的な各部波形を示す。
1…トラツキング信号のピツクアツプ装置、2
…AGCアンプ、3…トラツキング信号同調回路
、4…トラツキング信号検波回路、5…AGC電
圧制御装置、6…参照信号fp3検出装置、a…
参照信号fp3、b…トラツキング信号、c…従
来の技術におけるAGC電圧、d…従来の技術に
おけるAGCアンプ出力のトラツキング信号、e
…本考案装置におけるAGC電圧、f…本考案装
置におけるAGCアンプ出力のトラツキング信号
。
FIG. 1 is a block diagram of the main parts of a tracking control device in one embodiment of the present invention. FIG. 2 shows general waveforms of various parts. 1... Tracking signal pick-up device, 2
...AGC amplifier, 3...Tracking signal tuning circuit, 4...Tracking signal detection circuit, 5...AGC voltage control device, 6...Reference signal fp 3 detection device, a...
Reference signal fp3 , b...Tracking signal, c...AGC voltage in conventional technology, d...Tracking signal of AGC amplifier output in conventional technology, e
... AGC voltage in the device of the present invention, f... Tracking signal of AGC amplifier output in the device of the present invention.
Claims (1)
の信号に基づいて、AGC電圧を制御する手段と
を設け、参照信号記録位置のトラツキング信号検
出レベルを制御することができるトラツキング制
御装置。 A tracking control device comprising means for detecting a reference signal and means for controlling an AGC voltage based on a signal from the detecting means, and capable of controlling a tracking signal detection level at a reference signal recording position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12187787U JPS6428568U (en) | 1987-08-06 | 1987-08-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12187787U JPS6428568U (en) | 1987-08-06 | 1987-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428568U true JPS6428568U (en) | 1989-02-20 |
Family
ID=31369288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12187787U Pending JPS6428568U (en) | 1987-08-06 | 1987-08-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428568U (en) |
-
1987
- 1987-08-06 JP JP12187787U patent/JPS6428568U/ja active Pending
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