JPS54136133A - Picture display unit - Google Patents
Picture display unitInfo
- Publication number
- JPS54136133A JPS54136133A JP4363978A JP4363978A JPS54136133A JP S54136133 A JPS54136133 A JP S54136133A JP 4363978 A JP4363978 A JP 4363978A JP 4363978 A JP4363978 A JP 4363978A JP S54136133 A JPS54136133 A JP S54136133A
- Authority
- JP
- Japan
- Prior art keywords
- variable density
- density display
- microcomputer
- picture
- information necessary
- 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 realize the cost reduction for the graphic display which is capable of the variable density display by securing a coupling between the normal TV picture receiver, the microcomputer and the memory storing the information necessary for the variable density display of multiple gradation.
CONSTITUTION: Control part 1 incorporates the I/O buffer register which performs the information transfer to external bus 11 plus the microcomputer and then carries out the data input and output, the data correction, the generation of the fixed pattern and others to memory plane 2 (one sheet of which features the memory capacity of 256×256 bits against the TV screen and which can store the information necessary for 2n gradation variable density display via n-sheets of it). The data called out from plane 2 is changed 3 into the video signal and then modulated 4 to the VHF signal to be connected to the antenna terminal of TV picture receiver 5. Thus, the TV picture receivers which are mass-produced for household use can be used directly, reducing greatly the production cost.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4363978A JPS54136133A (en) | 1978-04-13 | 1978-04-13 | Picture display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4363978A JPS54136133A (en) | 1978-04-13 | 1978-04-13 | Picture display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54136133A true JPS54136133A (en) | 1979-10-23 |
Family
ID=12669431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4363978A Pending JPS54136133A (en) | 1978-04-13 | 1978-04-13 | Picture display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54136133A (en) |
-
1978
- 1978-04-13 JP JP4363978A patent/JPS54136133A/en active Pending
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