JPS5534514A - Picture information reading device - Google Patents
Picture information reading deviceInfo
- Publication number
- JPS5534514A JPS5534514A JP10627678A JP10627678A JPS5534514A JP S5534514 A JPS5534514 A JP S5534514A JP 10627678 A JP10627678 A JP 10627678A JP 10627678 A JP10627678 A JP 10627678A JP S5534514 A JPS5534514 A JP S5534514A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- video output
- binary coded
- voltage
- binary
- 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
- Image Input (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To improve the S/N and then to obtain the binary coded video output faithful to the original picture by supplying the picture signals to the amplifier the amplification factor of which varies automatically according to the picture signal levels and then giving the binary coding to the output of the amplifier.
CONSTITUTION: Switches S1∼S4 are actuated selectively in accordance with the fixed reading scan position. Correction voltage vb applied to multiplier 13 varies according to the reading position of scanner 10. At multiplier 13 the multiplication is given in sequence to picture signal voltage va obtained from scanner 10 with every picture element and voltage vb, thus obtaining nearly the uniform picture signals over the entire scanning lines. These picture signals are then binary coded through binary coding circuit 14 to obtain the binary coded video output faithful to the original picture. This video output is then transmitted to the reception side via data compressor 15 and MODEM16.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10627678A JPS5534514A (en) | 1978-09-01 | 1978-09-01 | Picture information reading device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10627678A JPS5534514A (en) | 1978-09-01 | 1978-09-01 | Picture information reading device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5534514A true JPS5534514A (en) | 1980-03-11 |
Family
ID=14429547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10627678A Pending JPS5534514A (en) | 1978-09-01 | 1978-09-01 | Picture information reading device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5534514A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53148420A (en) * | 1977-05-30 | 1978-12-25 | Sansui Electric Co | Digital meter for residual tape quantity |
JPS57147364A (en) * | 1981-03-09 | 1982-09-11 | Nippon Telegr & Teleph Corp <Ntt> | Telephone set terminal of switchboard system capable of voice storing service |
JPH01177276A (en) * | 1988-01-05 | 1989-07-13 | Tokyo Electric Co Ltd | Picture reader |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344115A (en) * | 1976-10-02 | 1978-04-20 | Nec Corp | Phototelegraphy picture receiver-transmitter equipment |
JPS5377120A (en) * | 1976-12-20 | 1978-07-08 | Ricoh Co Ltd | Read-in system |
-
1978
- 1978-09-01 JP JP10627678A patent/JPS5534514A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344115A (en) * | 1976-10-02 | 1978-04-20 | Nec Corp | Phototelegraphy picture receiver-transmitter equipment |
JPS5377120A (en) * | 1976-12-20 | 1978-07-08 | Ricoh Co Ltd | Read-in system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53148420A (en) * | 1977-05-30 | 1978-12-25 | Sansui Electric Co | Digital meter for residual tape quantity |
JPS57147364A (en) * | 1981-03-09 | 1982-09-11 | Nippon Telegr & Teleph Corp <Ntt> | Telephone set terminal of switchboard system capable of voice storing service |
JPH0120824B2 (en) * | 1981-03-09 | 1989-04-18 | Nippon Telegraph & Telephone | |
JPH01177276A (en) * | 1988-01-05 | 1989-07-13 | Tokyo Electric Co Ltd | Picture reader |
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