JPS5511605A - Regeneration system for intermediate gradation - Google Patents
Regeneration system for intermediate gradationInfo
- Publication number
- JPS5511605A JPS5511605A JP8353678A JP8353678A JPS5511605A JP S5511605 A JPS5511605 A JP S5511605A JP 8353678 A JP8353678 A JP 8353678A JP 8353678 A JP8353678 A JP 8353678A JP S5511605 A JPS5511605 A JP S5511605A
- Authority
- JP
- Japan
- Prior art keywords
- contents
- intermediate gradation
- registers
- output
- delivers
- 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
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To realize the regeneration of the intermediate gradation at the facsimile transmitter/receiver through a simple constitution by setting the threshold voltage of several different levels and then energizing the heat-sensitive head in correspondence to the signal level of the supplied picture.
CONSTITUTION: With supply of input picture signal 1 to comparator 8, the scale is compared between the level of picture signal 9 and threshold voltage V1∼ V3. Then digital signals A and B are delivered through output terminals 8a and 8b. Multiplexer 17 delivers the contents of register 15 to switching element 5 via 1st and 2nd shift registers 11 and 12 plus 1st and 2nd registers 15 and 16 when the output of one-shot 14 is "1", and delivers the contents of register 16 to element 5 when the output is "0" respectively. Accordingly, the conduction time of element 5 varies according to the contents of registers 15 and 16, and the volume of the current flowing to radiator 7 varies. Thus, the intermediate gradation can be regenerated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353678A JPS5511605A (en) | 1978-07-11 | 1978-07-11 | Regeneration system for intermediate gradation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353678A JPS5511605A (en) | 1978-07-11 | 1978-07-11 | Regeneration system for intermediate gradation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5511605A true JPS5511605A (en) | 1980-01-26 |
Family
ID=13805216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8353678A Pending JPS5511605A (en) | 1978-07-11 | 1978-07-11 | Regeneration system for intermediate gradation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5511605A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193189A (en) * | 1981-05-25 | 1982-11-27 | Nippon Hoso Kyokai <Nhk> | Transmitting and receiving system of picture information |
| JPS58181788A (en) * | 1982-04-15 | 1983-10-24 | Matsushita Electric Ind Co Ltd | Manufacture of crystal |
| JPS5973490A (en) * | 1982-10-19 | 1984-04-25 | Matsushita Electric Ind Co Ltd | Preparation of crystal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527737A (en) * | 1975-07-09 | 1977-01-21 | Kuwano Denki Kk | Thermal recorder |
-
1978
- 1978-07-11 JP JP8353678A patent/JPS5511605A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527737A (en) * | 1975-07-09 | 1977-01-21 | Kuwano Denki Kk | Thermal recorder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193189A (en) * | 1981-05-25 | 1982-11-27 | Nippon Hoso Kyokai <Nhk> | Transmitting and receiving system of picture information |
| JPS58181788A (en) * | 1982-04-15 | 1983-10-24 | Matsushita Electric Ind Co Ltd | Manufacture of crystal |
| JPH0135797B2 (en) * | 1982-04-15 | 1989-07-27 | Matsushita Electric Ind Co Ltd | |
| JPS5973490A (en) * | 1982-10-19 | 1984-04-25 | Matsushita Electric Ind Co Ltd | Preparation of crystal |
| JPH0135798B2 (en) * | 1982-10-19 | 1989-07-27 | Matsushita Electric Ind Co Ltd |
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