JPS55112688A - Detection circuit for optional character - Google Patents

Detection circuit for optional character

Info

Publication number
JPS55112688A
JPS55112688A JP1900579A JP1900579A JPS55112688A JP S55112688 A JPS55112688 A JP S55112688A JP 1900579 A JP1900579 A JP 1900579A JP 1900579 A JP1900579 A JP 1900579A JP S55112688 A JPS55112688 A JP S55112688A
Authority
JP
Japan
Prior art keywords
character
code
lead
memory
pattern
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
JP1900579A
Other languages
Japanese (ja)
Inventor
Kazuharu Itakura
Kenichi Ishii
Takeo Arakawa
Katsuji Sato
Norio Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1900579A priority Critical patent/JPS55112688A/en
Publication of JPS55112688A publication Critical patent/JPS55112688A/en
Pending legal-status Critical Current

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  • Digital Computer Display Output (AREA)

Abstract

PURPOSE: To perform detection control simply in high speed, by discriminating whether or not the corresponding pattern is on high speed memory when character code is given and giving the storage address of pattern at the same time when present.
CONSTITUTION: When the print code is inputted to the control section 1 from the lead a, the character code is converted into the internal code in correspondence with it one to one, and it is given to the code conversion table 2 as address from the lead b. The optional character discrimination section 4 reads in the data on the lead c and checks whether or not it is optional character, and if optional character, it is delivered to the control section 1 from the lead d. The control section 1 reads out the corresponding character pattern from the low speed character pattern memory 5 by taking the internal code as the key, writes in it to the high speed character pattern memory 3 and the character pattern storage address is written in the address corresponding to the internal code of the table 2 at the same time. After that, when the internal code is given, since it does not include optional character, the character pattern is given to external printer from the memory 3. On the other hand, if the data on the lead c is the character pattern storage address, the discrimination section 4 starts the memory 3.
COPYRIGHT: (C)1980,JPO&Japio
JP1900579A 1979-02-22 1979-02-22 Detection circuit for optional character Pending JPS55112688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1900579A JPS55112688A (en) 1979-02-22 1979-02-22 Detection circuit for optional character

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1900579A JPS55112688A (en) 1979-02-22 1979-02-22 Detection circuit for optional character

Publications (1)

Publication Number Publication Date
JPS55112688A true JPS55112688A (en) 1980-08-30

Family

ID=11987393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1900579A Pending JPS55112688A (en) 1979-02-22 1979-02-22 Detection circuit for optional character

Country Status (1)

Country Link
JP (1) JPS55112688A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840660A (en) * 1981-09-04 1983-03-09 Hitachi Ltd Terminal system
JPS59103141A (en) * 1982-11-19 1984-06-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Data display unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840660A (en) * 1981-09-04 1983-03-09 Hitachi Ltd Terminal system
JPS59103141A (en) * 1982-11-19 1984-06-14 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Data display unit

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