JPS641105A - Signal processing circuit - Google Patents
Signal processing circuitInfo
- Publication number
- JPS641105A JPS641105A JP15548187A JP15548187A JPS641105A JP S641105 A JPS641105 A JP S641105A JP 15548187 A JP15548187 A JP 15548187A JP 15548187 A JP15548187 A JP 15548187A JP S641105 A JPS641105 A JP S641105A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- readout
- voltage
- level
- readout 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.)
- Pending
Links
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE: To contrive to improve the signal detection rate of a readout signal by changing a level of a reference voltage in a prescribed time width depending on a position signal generated corresponding to the readout location of a readout signal.
CONSTITUTION: A preamplifier 3 amplifying a readout signal V1 by a read/write head 2, an AGC circuit 4 uniformizing the amplitude of the amplified readout signal V1, a signal generation circuit 5 comparing the uniformized readout signal V1' with a slice voltage VSL to generate a gate signal Vg, and voltage variable circuits 6, 7 varying the voltage level of the slice voltage VSL in response to the position signal Vs supplied corresponding to the tracing position of the read/write head 2 and R1WR3 are provided. Thus, the position signal is fed to the voltage variable circuit at a position where the readout signal amplitude is decreased and the slice voltage is varied into a low level, then even if the level uniforming is retarded due to the response of the AGC circuit, the gate signal is to be generated and the signal detection rate of the readout signal is improved by using the gate signal.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15548187A JPS641105A (en) | 1987-06-24 | 1987-06-24 | Signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15548187A JPS641105A (en) | 1987-06-24 | 1987-06-24 | Signal processing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH011105A JPH011105A (en) | 1989-01-05 |
JPS641105A true JPS641105A (en) | 1989-01-05 |
Family
ID=15606989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15548187A Pending JPS641105A (en) | 1987-06-24 | 1987-06-24 | Signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS641105A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0430307A (en) * | 1990-05-25 | 1992-02-03 | Fujitsu Ltd | Peak detection system of magnetic disk device and recording medium format constitution system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1892527A1 (en) | 2005-06-07 | 2008-02-27 | Miura Co., Ltd. | Method of preparing dioxins analytical sample |
-
1987
- 1987-06-24 JP JP15548187A patent/JPS641105A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0430307A (en) * | 1990-05-25 | 1992-02-03 | Fujitsu Ltd | Peak detection system of magnetic disk device and recording medium format constitution system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS641105A (en) | Signal processing circuit | |
JPS54128313A (en) | Magnetic recorder-reproducer capable of automatic setting of proper bias amount | |
JPS57127988A (en) | Write-in system for semiconductor storage device | |
JPS5517874A (en) | Skew detection circuit of magnetic tape device | |
JPS5245310A (en) | Magnetic tape device | |
JPS5273794A (en) | Magnetic detection circuit for bank notes, etc. | |
JPS5381103A (en) | Preventing device for false insertion of recording disk in autoplayer | |
JPS6430006A (en) | Magnetic recording and reproducing device | |
JPS5280116A (en) | Magnetic card device | |
JPS5353303A (en) | Magnetic recording circuit | |
JPS51135512A (en) | Tracking control method for magnetic recording reproduction device | |
JPS5380203A (en) | Tape guide | |
JPS5235605A (en) | Magnetic tape guide | |
JPS51112312A (en) | Magnetic recording and playing apparatus | |
JPS5733416A (en) | Automatic gain control processing system | |
JPS5373113A (en) | Recording and reproducing apparatus | |
JPS54103381A (en) | Battery voltage detecting circuit | |
JPS51135510A (en) | Tracking control method for magnetic recording reproduction device | |
JPS5350941A (en) | Quantization device | |
JPS5359405A (en) | High-frequency bias magnetic recording ststem | |
JPS5377606A (en) | Magnetic recorder and reproducer | |
JPS5665315A (en) | Magnetic recording and inspecting system | |
JPS5226209A (en) | Magnetic card record signal level detector | |
JPS5429621A (en) | Signal reproducer | |
JPS51126110A (en) | Non-signal part detector in information read-out device |