JPS6448569A - Facsimile equipment - Google Patents
Facsimile equipmentInfo
- Publication number
- JPS6448569A JPS6448569A JP20411687A JP20411687A JPS6448569A JP S6448569 A JPS6448569 A JP S6448569A JP 20411687 A JP20411687 A JP 20411687A JP 20411687 A JP20411687 A JP 20411687A JP S6448569 A JPS6448569 A JP S6448569A
- Authority
- JP
- Japan
- Prior art keywords
- data
- picture
- transmission
- picture information
- correspondence
- 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 attain picture transmission with high confidentiality by setting a numerical data different from each transmission processing and changing the correspondence between bit patterns of picture information before and after cryptographic processing on each occasion. CONSTITUTION:A numeral data ds is set optionally at the sender side and a data table Ts extracting other bit pattern data in 1 type is provided in receiving a 1 byte data is provided. Then picture information data is extracted one by one byte to and a numerical data ds, it is inputted to the data table Ts, encrypted and picture data di is obtained and it is sent together with the numerical data ds, then the correspondence of the picture information before and after cryptographic processing differs from each transmission. Thus, the third party intercepts a transmission picture and decodes the cryptography, but the converting method of data pattern is not easily discriminated and the picture information with high confidentiality is sent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20411687A JPS6448569A (en) | 1987-08-19 | 1987-08-19 | Facsimile equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20411687A JPS6448569A (en) | 1987-08-19 | 1987-08-19 | Facsimile equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448569A true JPS6448569A (en) | 1989-02-23 |
Family
ID=16485080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20411687A Pending JPS6448569A (en) | 1987-08-19 | 1987-08-19 | Facsimile equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448569A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7966843B2 (en) | 2006-05-19 | 2011-06-28 | Lg Electronics Inc. | Cool air supplying apparatus and refrigerator having the same |
-
1987
- 1987-08-19 JP JP20411687A patent/JPS6448569A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7966843B2 (en) | 2006-05-19 | 2011-06-28 | Lg Electronics Inc. | Cool air supplying apparatus and refrigerator having the same |
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