JPS6189951U - - Google Patents

Info

Publication number
JPS6189951U
JPS6189951U JP17518784U JP17518784U JPS6189951U JP S6189951 U JPS6189951 U JP S6189951U JP 17518784 U JP17518784 U JP 17518784U JP 17518784 U JP17518784 U JP 17518784U JP S6189951 U JPS6189951 U JP S6189951U
Authority
JP
Japan
Prior art keywords
display data
data signal
overflow
control section
signal output
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
JP17518784U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP17518784U priority Critical patent/JPS6189951U/ja
Publication of JPS6189951U publication Critical patent/JPS6189951U/ja
Pending legal-status Critical Current

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Landscapes

  • Calculators And Similar Devices (AREA)
  • Debugging And Monitoring (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案による電子式卓上計算機の一実
施例を示すブロツク図、第２図ａ，ｂ，ｃ，ｄは
、オーバーフロー時における表示部の表示例を示
す図である。 １……キーボード部、２……演算制御部、３…
…通常用の表示データ信号出力線、４……オーバ
ーフロー用の表示データ信号出力線、５……オー
バーフロー制御部、６……表示レジスタ、７……
桁制御信号出力線、８……表示部。 FIG. 1 is a block diagram showing an embodiment of an electronic desktop calculator according to the present invention, and FIGS. 2a, b, c, and d are diagrams showing examples of the display on the display section in the event of an overflow. 1...Keyboard section, 2...Arithmetic control section, 3...
...Display data signal output line for normal use, 4...Display data signal output line for overflow, 5...Overflow control section, 6...Display register, 7...
Digit control signal output line, 8...display section.

Claims (1)

【実用新案登録請求の範囲】 (1) キーボード部と、このキーボード部から入
力されたデータを置数もしくは演算し、その置数
値もしくは演算結果を通常用の表示データ信号と
して出力するとともに、前記置数値もしくは演算
結果が制限範囲を越えたときにオーバーフロー用
の表示データ信号を出力する演算制御部と、この
演算制御部の通常用の表示データ信号出力線およ
びオーバーフロー用の表示データ信号出力線と表
示レジスタの入力側との間に挿入され、オーバー
フロー用の表示データ信号があるときに、このオ
ーバーフロー用の表示データ信号を通過せしめる
とともに、通常用の表示データ信号の通過を阻止
するオーバーフロー制御部と、前記演算制御部か
ら出力する桁制御信号と前記表示レジスタから出
力する表示データ信号とに基づいて表示データを
表示する表示部とを具備したことを特徴とする電
子式卓上計算機。 (2) オーバーフロー制御部は、演算制御部の通
常用の表示データ信号出力線と表示レジスタの入
力側との間に順次挿入されたアンドゲートおよび
オアゲートと、オーバーフロー用の表示データ信
号出力線と前記オアゲートの他方の入力側との間
に挿入されたフリツプフロツプ回路と、このフリ
ツプフロツプ回路の出力側と前記アンドゲートの
他方の入力側との間に挿入されたインバータとか
らなる実用新案登録請求の範囲第１項記載の電子
式卓上計算機。[Claims for Utility Model Registration] (1) A keyboard unit, which inputs or calculates data input from the keyboard unit, outputs the input value or the calculation result as a normal display data signal, and An arithmetic control section that outputs a display data signal for overflow when a numerical value or arithmetic result exceeds a limit range, a normal display data signal output line of this arithmetic control section, a display data signal output line for overflow, and a display. an overflow control section that is inserted between the input side of the register and allows the overflow display data signal to pass when there is an overflow display data signal, and prevents the normal display data signal from passing; An electronic desktop calculator comprising: a display section that displays display data based on a digit control signal output from the arithmetic control section and a display data signal output from the display register. (2) The overflow control section includes AND gates and OR gates that are sequentially inserted between the normal display data signal output line of the arithmetic control section and the input side of the display register, and the overflow display data signal output line and the Utility model registration claim No. 1, which consists of a flip-flop circuit inserted between the other input side of the OR gate and an inverter inserted between the output side of this flip-flop circuit and the other input side of the AND gate. The electronic desktop calculator described in item 1.
JP17518784U 1984-11-19 1984-11-19 Pending JPS6189951U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17518784U JPS6189951U (en) 1984-11-19 1984-11-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17518784U JPS6189951U (en) 1984-11-19 1984-11-19

Publications (1)

Publication Number Publication Date
JPS6189951U true JPS6189951U (en) 1986-06-11

Family

ID=30732792

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17518784U Pending JPS6189951U (en) 1984-11-19 1984-11-19

Country Status (1)

Country Link
JP (1) JPS6189951U (en)

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