JPS54137243A - Television video signal generator - Google Patents
Television video signal generatorInfo
- Publication number
- JPS54137243A JPS54137243A JP4568178A JP4568178A JPS54137243A JP S54137243 A JPS54137243 A JP S54137243A JP 4568178 A JP4568178 A JP 4568178A JP 4568178 A JP4568178 A JP 4568178A JP S54137243 A JPS54137243 A JP S54137243A
- Authority
- JP
- Japan
- Prior art keywords
- data
- memory
- scanning
- signal generator
- plural
- 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
Abstract
PURPOSE: To eliminate the unnatural contours of the picture image without increasing the memory capacity by reading out the data at one time corresponding to the plural continuous scanning lines and then adopting the average value of the read-out data in the form of the data corresponding to one piece of scanning line.
CONSTITUTION: The TV signal generator circuit contains picture frame memory 1 to memorize the luminance data equivalent to one picture frame of the TV video, the means to write the data into memory 1, and the means to read out the data sequentially from memory 1 in synchronization with the TV scanning. In this circuit, the reading pulses given from timing pulse generator 9 are applied simultaneously to memory 1 as well as to address counter 3 and 5, and the data corresponding to the plural continuous lines are read out at one time to shift register 2 and 4. The output of register 2 and 4 are attenuated at level attenuator 6 and 7 to be then applied to level adder 8, and then the average value is obtained for the plural data to be delivered via video output circuit 10 in the form of the data corresponding to one piece of scanning line.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4568178A JPS54137243A (en) | 1978-04-17 | 1978-04-17 | Television video signal generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4568178A JPS54137243A (en) | 1978-04-17 | 1978-04-17 | Television video signal generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54137243A true JPS54137243A (en) | 1979-10-24 |
Family
ID=12726128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4568178A Pending JPS54137243A (en) | 1978-04-17 | 1978-04-17 | Television video signal generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54137243A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190981A (en) * | 1982-04-23 | 1983-11-08 | テキサス・インスツルメンツ・インコ−ポレイテツド | Video signal generator |
-
1978
- 1978-04-17 JP JP4568178A patent/JPS54137243A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58190981A (en) * | 1982-04-23 | 1983-11-08 | テキサス・インスツルメンツ・インコ−ポレイテツド | Video signal generator |
JPH0561640B2 (en) * | 1982-04-23 | 1993-09-06 | Texas Instruments Inc |
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