JPS55157035A - Code conversion circuit - Google Patents
Code conversion circuitInfo
- Publication number
- JPS55157035A JPS55157035A JP6419079A JP6419079A JPS55157035A JP S55157035 A JPS55157035 A JP S55157035A JP 6419079 A JP6419079 A JP 6419079A JP 6419079 A JP6419079 A JP 6419079A JP S55157035 A JPS55157035 A JP S55157035A
- Authority
- JP
- Japan
- Prior art keywords
- code
- circuit
- outputted
- output
- detection section
- 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.)
- Granted
Links
Landscapes
- Digital Computer Display Output (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
PURPOSE: To enable to convert the output code of some counter circuits having the number of different counts into the code for display unit drive, by adding a detection section of simple constitution and correcting circuit section to a code conversion section.
CONSTITUTION: A detection section consists of an NAND gate 10 of so-called C2MOS type in which binary count output codes Q1WQ4 in 4 bit output from duodecimal binary counter circuit 30 are parallelly supplied, inverter 11, and P- MOS type transistor Tr12, and to the gate of Tr12, the signal inverting the conversion change-over signal TD outputted from a decimal binary counter circuit 40 in which the binary count output code is made to "1" in code conversion and while the output code from the circuit 30 is converted into "0", is fed. Thus, by inputting the signals α and -α outputted from the detection section to the correction circuit, the codes Q1WQ4 respectively outputted from the circuits 30 and 40 can be converted to the code for display unit drive.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6419079A JPS6026238B2 (en) | 1979-05-24 | 1979-05-24 | Code conversion circuit for driving 7 segment display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6419079A JPS6026238B2 (en) | 1979-05-24 | 1979-05-24 | Code conversion circuit for driving 7 segment display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55157035A true JPS55157035A (en) | 1980-12-06 |
JPS6026238B2 JPS6026238B2 (en) | 1985-06-22 |
Family
ID=13250887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6419079A Expired JPS6026238B2 (en) | 1979-05-24 | 1979-05-24 | Code conversion circuit for driving 7 segment display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6026238B2 (en) |
-
1979
- 1979-05-24 JP JP6419079A patent/JPS6026238B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6026238B2 (en) | 1985-06-22 |
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