JPS54136133A - Picture display unit - Google Patents

Picture display unit

Info

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
Application number
JP4363978A
Other languages
Japanese (ja)
Inventor
Kokichi Tanaka
Shinichi Tamura
Junichi Hiramoto
Kazuo Hirano
Kenichi Yoshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IRIYO GIJUTSU KENKYU KAIHATSU
IRYO GIJUTSU KENKYU KAIHATSU ZAIDAN
Sumitomo Electric Industries Ltd
Original Assignee
IRIYO GIJUTSU KENKYU KAIHATSU
IRYO GIJUTSU KENKYU KAIHATSU ZAIDAN
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IRIYO GIJUTSU KENKYU KAIHATSU, IRYO GIJUTSU KENKYU KAIHATSU ZAIDAN, Sumitomo Electric Industries Ltd filed Critical IRIYO GIJUTSU KENKYU KAIHATSU
Priority to JP4363978A priority Critical patent/JPS54136133A/en
Publication of JPS54136133A publication Critical patent/JPS54136133A/en
Pending legal-status Critical Current

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
JP4363978A 1978-04-13 1978-04-13 Picture display unit Pending JPS54136133A (en)

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)

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