JPS54121033A - Digital code inversion circuit - Google Patents
Digital code inversion circuitInfo
- Publication number
- JPS54121033A JPS54121033A JP2774178A JP2774178A JPS54121033A JP S54121033 A JPS54121033 A JP S54121033A JP 2774178 A JP2774178 A JP 2774178A JP 2774178 A JP2774178 A JP 2774178A JP S54121033 A JPS54121033 A JP S54121033A
- Authority
- JP
- Japan
- Prior art keywords
- output
- input
- adder
- signal
- inversion
- 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 obtain a code inversion circuit of a simple constitution which does not cuase the error and also deletes the discontinuous characteristics of the output at the maximum level by providing the logic means to perform the operation whether the output data is inverted or not according to the code inversion input.
CONSTITUTION: Negative logic inversion X is given to input terminals I3WI0 of adder 1, and code inversion input E of terminal CI is applied to be then delivered through output terminals O3WO0. In such constitution, the input and output of adder 1 show the same value in case signal E is O. At the same time, signal E inverts the output of adder 1 via gate 4 and 5 and delivers signal Y with the positive logic. When signal E is 1, 1 is added to adder 1 and the output features X + 1 = -X. In case the highest-rank bit of the input is -MAX-1, output Y = inversion (inverse X + 1) = +MAX is obtained via gate 4 and 5. Thus, the discontinuity can be solved. Thus, the output error caused by the code inversion and the discontinuity can be deleted through the simple constitution of the logic gate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2774178A JPS54121033A (en) | 1978-03-13 | 1978-03-13 | Digital code inversion circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2774178A JPS54121033A (en) | 1978-03-13 | 1978-03-13 | Digital code inversion circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54121033A true JPS54121033A (en) | 1979-09-19 |
Family
ID=12229448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2774178A Pending JPS54121033A (en) | 1978-03-13 | 1978-03-13 | Digital code inversion circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54121033A (en) |
-
1978
- 1978-03-13 JP JP2774178A patent/JPS54121033A/en active Pending
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