JPS55134455A - Parity forming circuit - Google Patents
Parity forming circuitInfo
- Publication number
- JPS55134455A JPS55134455A JP4072179A JP4072179A JPS55134455A JP S55134455 A JPS55134455 A JP S55134455A JP 4072179 A JP4072179 A JP 4072179A JP 4072179 A JP4072179 A JP 4072179A JP S55134455 A JPS55134455 A JP S55134455A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- data
- bit
- output
- parity
- 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
- Detection And Correction Of Errors (AREA)
Abstract
PURPOSE: To give a very simple constitution to a circuit by constituting the circuit so that a new parity bit can be obtained by the parity bit of a data processing circuit and data of a part of it.
CONSTITUTION: Data group A is output from data processing circuit 1. Data a2 of this data group A is processed into data a3 by data processing circuit 3. Accompanied with this processing, new parity bit p2 is formed according to data a2 and parity bit p1 by parity forming circuit 7. In circuit 7, data a2 is transferred to exclusive OR circuit E1 for every bit, and bit P1 is transferred to exclusive OR circuit E2, and the output of circuit E1 is transferred to the other input of circuit E2. Consequently, since data a2 is 10 and bit P1 is 1 now, logic 1 is output from circuit E1, and logic 0 is output from circuit E2, and bit P2 becomes logic 0. Thus, parity bit P2 can be obtained with a very simple circuit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54040721A JPS6041772B2 (en) | 1979-04-04 | 1979-04-04 | Parity creation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54040721A JPS6041772B2 (en) | 1979-04-04 | 1979-04-04 | Parity creation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55134455A true JPS55134455A (en) | 1980-10-20 |
JPS6041772B2 JPS6041772B2 (en) | 1985-09-18 |
Family
ID=12588455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54040721A Expired JPS6041772B2 (en) | 1979-04-04 | 1979-04-04 | Parity creation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6041772B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6280163U (en) * | 1985-11-08 | 1987-05-22 | ||
JPH0247382Y2 (en) * | 1986-06-30 | 1990-12-13 |
-
1979
- 1979-04-04 JP JP54040721A patent/JPS6041772B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6041772B2 (en) | 1985-09-18 |
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