JPS6462044A - Digital radio communication equipment - Google Patents

Digital radio communication equipment

Info

Publication number
JPS6462044A
JPS6462044A JP62219518A JP21951887A JPS6462044A JP S6462044 A JPS6462044 A JP S6462044A JP 62219518 A JP62219518 A JP 62219518A JP 21951887 A JP21951887 A JP 21951887A JP S6462044 A JPS6462044 A JP S6462044A
Authority
JP
Japan
Prior art keywords
cryptographic code
code data
cryptographic
signal
decoder
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
JP62219518A
Other languages
Japanese (ja)
Inventor
Shogo Iizuka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62219518A priority Critical patent/JPS6462044A/en
Publication of JPS6462044A publication Critical patent/JPS6462044A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To automatically change a cryptographic code data by receiving a cryptographic code data distribution signal, detecting a cryptographic code data from the signal and changing the detected cryptographic code data with the cryptographic code data in a memory. CONSTITUTION:A received wave is demodulated into a digital signal string by a demodulator 14 and decoded into a cryptographic code of a cryptographic digital signal string according to a cryptographic code data in a memory 17. When a decoder 20 detects a cryptographic code revision signal a1 of a header A and an individual selection signal a2 belonging to its own station from the digital signal string decoded by a cryptographic decoder 15, the cryptographic code data B is decoded and the cryptographic code data B is stored in a temporary storage memory 21. In detecting an end signal C, the decoder 20 transfers the cryptographic code data stored in the temporary storage memory 21 to the cryptographic code storage memory 17 via an interface circuit 22. Thus, the automatic rewrite of the new/old cryptographic code data is attained.
JP62219518A 1987-09-02 1987-09-02 Digital radio communication equipment Pending JPS6462044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219518A JPS6462044A (en) 1987-09-02 1987-09-02 Digital radio communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219518A JPS6462044A (en) 1987-09-02 1987-09-02 Digital radio communication equipment

Publications (1)

Publication Number Publication Date
JPS6462044A true JPS6462044A (en) 1989-03-08

Family

ID=16736724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219518A Pending JPS6462044A (en) 1987-09-02 1987-09-02 Digital radio communication equipment

Country Status (1)

Country Link
JP (1) JPS6462044A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8552854B2 (en) 2002-03-26 2013-10-08 Somfy Method for reprogramming bidirectional objects
US20170026185A1 (en) * 2015-07-21 2017-01-26 Entrust, Inc. Method and apparatus for providing secure communication among constrained devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170244A (en) * 1982-03-31 1983-10-06 Nec Corp Encryption communication system
JPS59178040A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd System for distributing and processing key information
JPS60224348A (en) * 1984-04-21 1985-11-08 Sony Corp Transmitter and receiver of digital communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170244A (en) * 1982-03-31 1983-10-06 Nec Corp Encryption communication system
JPS59178040A (en) * 1983-03-29 1984-10-09 Fujitsu Ltd System for distributing and processing key information
JPS60224348A (en) * 1984-04-21 1985-11-08 Sony Corp Transmitter and receiver of digital communication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8552854B2 (en) 2002-03-26 2013-10-08 Somfy Method for reprogramming bidirectional objects
US20170026185A1 (en) * 2015-07-21 2017-01-26 Entrust, Inc. Method and apparatus for providing secure communication among constrained devices
US10728043B2 (en) * 2015-07-21 2020-07-28 Entrust, Inc. Method and apparatus for providing secure communication among constrained devices
US11102013B2 (en) 2015-07-21 2021-08-24 Entrust, Inc. Method and apparatus for providing secure communication among constrained devices

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