JPS6476469A - Circuit for generating track passing-through pulse - Google Patents
Circuit for generating track passing-through pulseInfo
- Publication number
- JPS6476469A JPS6476469A JP23215687A JP23215687A JPS6476469A JP S6476469 A JPS6476469 A JP S6476469A JP 23215687 A JP23215687 A JP 23215687A JP 23215687 A JP23215687 A JP 23215687A JP S6476469 A JPS6476469 A JP S6476469A
- Authority
- JP
- Japan
- Prior art keywords
- glitch
- signal
- pulse
- circuit
- track passing
- 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
Abstract
PURPOSE:To obtain the head positioning operation of high reliability by providing a circuit means which can exactly detect a track passing-through pulse even when a noise is overlapped to a position signal. CONSTITUTION:A position signal 1 goes to be a digital signal by a comparator 2. In this signal, there is possibility a glitch is generated to the position of inversion by the noise component of the position signal. A 1/2 servo track signal 4 is generated by obtaining the exclusive OR of the position signals whose phases are different. By causing the glitch to pass through a latch 6 with using the signal of a decoder 5, the glitch can be removed. However, when there is the glitch to be shorter than a latch-up time, a track passing-through pulse string is generated by a one-shot pulse circuit 7, however, the glitch to pass through the latch 6 is remained as it is. Thus, by causing the glitch to pass through a glitch removing circuit 8, the glitch is removed and the exact track passing-through pulse can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23215687A JPS6476469A (en) | 1987-09-18 | 1987-09-18 | Circuit for generating track passing-through pulse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23215687A JPS6476469A (en) | 1987-09-18 | 1987-09-18 | Circuit for generating track passing-through pulse |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476469A true JPS6476469A (en) | 1989-03-22 |
Family
ID=16934872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23215687A Pending JPS6476469A (en) | 1987-09-18 | 1987-09-18 | Circuit for generating track passing-through pulse |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476469A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5880898A (en) * | 1995-03-18 | 1999-03-09 | Samsung Electronics Co., Ltd. | Data reproduction method and circuit for removing a glitch error in a digital magnetic recording/reproduction apparatus |
KR100303278B1 (en) * | 1994-03-14 | 2001-11-30 | 윤종용 | Circuit for generating track traverse pulse |
-
1987
- 1987-09-18 JP JP23215687A patent/JPS6476469A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100303278B1 (en) * | 1994-03-14 | 2001-11-30 | 윤종용 | Circuit for generating track traverse pulse |
US5880898A (en) * | 1995-03-18 | 1999-03-09 | Samsung Electronics Co., Ltd. | Data reproduction method and circuit for removing a glitch error in a digital magnetic recording/reproduction apparatus |
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