JPS57164456A - Signal reproducing stylus - Google Patents
Signal reproducing stylusInfo
- Publication number
- JPS57164456A JPS57164456A JP4788981A JP4788981A JPS57164456A JP S57164456 A JPS57164456 A JP S57164456A JP 4788981 A JP4788981 A JP 4788981A JP 4788981 A JP4788981 A JP 4788981A JP S57164456 A JPS57164456 A JP S57164456A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- disk
- reproducing stylus
- reproducing
- insulating
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
- G11B9/07—Heads for reproducing capacitive information
- G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE:To eliminate the influence of conductive dust stuck when a reproducing stylus having an electrode on one side surface of an insulating prismatic body is slid on a disk surface, by forming an insulating film over the external circumferential surface of the electrode except the disk-opposing surface of the electrode. CONSTITUTION:A reproducing stylus is made of a prismatic insulating body 1 and a beltlike electrode 2 provided at one circumferential corner part, and an insulating film is adhered to the entire external surface of the electrode except the opposing surface for a disk 3. Then, the reproducing stylus is moved relatively while the tip surface of the reproducing stylus is brought into contact with the surface of the disk 3 where digital information is recorded by pits 4, thus reproducing the information by picking up the states of the pits 4 as electrostatic variation. Therefore, even if conductive dust such as a peeled piece of the disk 3 sticks atop of the reproducing stylus, the surface is separated from the electrode 2 electrically completely, so excellent reproduction characteristics are obtained without exerting any influence upon the electrical area of the electrode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4788981A JPS57164456A (en) | 1981-03-31 | 1981-03-31 | Signal reproducing stylus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4788981A JPS57164456A (en) | 1981-03-31 | 1981-03-31 | Signal reproducing stylus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57164456A true JPS57164456A (en) | 1982-10-09 |
Family
ID=12787963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4788981A Pending JPS57164456A (en) | 1981-03-31 | 1981-03-31 | Signal reproducing stylus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57164456A (en) |
-
1981
- 1981-03-31 JP JP4788981A patent/JPS57164456A/en active Pending
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