JPS6486761A - Image information reading method - Google Patents
Image information reading methodInfo
- Publication number
- JPS6486761A JPS6486761A JP62245344A JP24534487A JPS6486761A JP S6486761 A JPS6486761 A JP S6486761A JP 62245344 A JP62245344 A JP 62245344A JP 24534487 A JP24534487 A JP 24534487A JP S6486761 A JPS6486761 A JP S6486761A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- discrete
- reading
- high voltage
- value
- 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
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
- Radiography Using Non-Light Waves (AREA)
Abstract
PURPOSE:To perform the reading of a fine image with quite simple constitution by correcting picture data by selecting a high voltage to be impressed on a photomultiplier out of a few number of discrete fixed values and applying an interpolation processing when a reading voltage between the discrete voltages is designated. CONSTITUTION:The high voltage related to reading designated sensitivity is set, for example, at 560V, and when the voltage 560V is set at a high voltage generator 36, the high voltage generator 36 outputs only the discrete values, for example, 500V, 600V, and 700V, etc, In such a case, the voltage is set at the voltage 600V that is nearest to 560V, and the voltage 600V is introduced to the high voltage input terminal of the photomultiplier 34. Meanwhile, the differential voltage between a continuous voltage value 560V related to the reading designated sensitivity and the discrete voltage value 600V related to preset sensitivity, that is, a voltage 40V is calculated by a subtractor 42, and is introduced to a correction circuit 40. And the value which reads picture information by the discrete voltage value is corrected as if it is read by the continuous voltage value 560V related to designated sensitivity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245344A JPH0666857B2 (en) | 1987-09-29 | 1987-09-29 | Image information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245344A JPH0666857B2 (en) | 1987-09-29 | 1987-09-29 | Image information reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6486761A true JPS6486761A (en) | 1989-03-31 |
JPH0666857B2 JPH0666857B2 (en) | 1994-08-24 |
Family
ID=17132277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62245344A Expired - Fee Related JPH0666857B2 (en) | 1987-09-29 | 1987-09-29 | Image information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0666857B2 (en) |
-
1987
- 1987-09-29 JP JP62245344A patent/JPH0666857B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0666857B2 (en) | 1994-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |