JPS6448569A - Facsimile equipment - Google Patents

Facsimile equipment

Info

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
Application number
JP20411687A
Other languages
Japanese (ja)
Inventor
Makoto Tsuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP20411687A priority Critical patent/JPS6448569A/en
Publication of JPS6448569A publication Critical patent/JPS6448569A/en
Pending legal-status Critical Current

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.
JP20411687A 1987-08-19 1987-08-19 Facsimile equipment Pending JPS6448569A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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