JPS5656068A - Conversion system for number of video signal - Google Patents
Conversion system for number of video signalInfo
- Publication number
- JPS5656068A JPS5656068A JP13181279A JP13181279A JPS5656068A JP S5656068 A JPS5656068 A JP S5656068A JP 13181279 A JP13181279 A JP 13181279A JP 13181279 A JP13181279 A JP 13181279A JP S5656068 A JPS5656068 A JP S5656068A
- Authority
- JP
- Japan
- Prior art keywords
- information
- output
- signal
- picture signals
- input
- 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
- 238000006243 chemical reaction Methods 0.000 title 1
- 230000005764 inhibitory process Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To solve signal absence and the jitters by matching input and output picture signals in timing by storing permit information or inhibition information in respective addresses at a prescribed ratio evenly and by extracting the output signal through gating with its readout information. CONSTITUTION:When a B4 size original is read out at dot density P and readout information is recorded on A4 size recording paper at dot density P, l=256. and m=216.P, resulting in l/(l-m)=27/5. The capacity of memory 7 should only be enough to satisfy the sum of the numerator and denominator of the ratio reduced to a maximum and 32 bits in this case. Further, permit information H and inhibition information L are stored nearly uniformly. Then, the count value is sent as an address assignment input to memory 7 of counter 6 successively. With this readout information, AND gate 7 is gated and at the rise of the output of gate 7, the input picture signal is read by D type FF5 and latched there, so that an output picture signal obtaind by converting (l) picture signals for one line into (m) picture signals for one line can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13181279A JPS5656068A (en) | 1979-10-15 | 1979-10-15 | Conversion system for number of video signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13181279A JPS5656068A (en) | 1979-10-15 | 1979-10-15 | Conversion system for number of video signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5656068A true JPS5656068A (en) | 1981-05-16 |
Family
ID=15066676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13181279A Pending JPS5656068A (en) | 1979-10-15 | 1979-10-15 | Conversion system for number of video signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5656068A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5875277A (en) * | 1981-10-29 | 1983-05-06 | Yokogawa Hokushin Electric Corp | Pattern recognizing device |
| JPS59105769A (en) * | 1982-12-10 | 1984-06-19 | Toshiba Corp | Transmission system of still picture information |
| JPS63187767A (en) * | 1987-01-29 | 1988-08-03 | Ricoh Co Ltd | image reading device |
| JPS63188275A (en) * | 1987-01-30 | 1988-08-03 | Matsushita Electric Ind Co Ltd | Image processing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117510A (en) * | 1976-03-30 | 1977-10-03 | Canon Inc | Signal conversion unit |
-
1979
- 1979-10-15 JP JP13181279A patent/JPS5656068A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117510A (en) * | 1976-03-30 | 1977-10-03 | Canon Inc | Signal conversion unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5875277A (en) * | 1981-10-29 | 1983-05-06 | Yokogawa Hokushin Electric Corp | Pattern recognizing device |
| JPS59105769A (en) * | 1982-12-10 | 1984-06-19 | Toshiba Corp | Transmission system of still picture information |
| JPS63187767A (en) * | 1987-01-29 | 1988-08-03 | Ricoh Co Ltd | image reading device |
| JPS63188275A (en) * | 1987-01-30 | 1988-08-03 | Matsushita Electric Ind Co Ltd | Image processing device |
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