JPS5526741A - Secret talk unit - Google Patents

Secret talk unit

Info

Publication number
JPS5526741A
JPS5526741A JP9962678A JP9962678A JPS5526741A JP S5526741 A JPS5526741 A JP S5526741A JP 9962678 A JP9962678 A JP 9962678A JP 9962678 A JP9962678 A JP 9962678A JP S5526741 A JPS5526741 A JP S5526741A
Authority
JP
Japan
Prior art keywords
information
rearranged
previously
analog
waveform
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
JP9962678A
Other languages
Japanese (ja)
Inventor
Takashi Kusanagi
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.)
ASHIPEELE KK
EIBURU SYST KK
Original Assignee
ASHIPEELE KK
EIBURU SYST KK
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 ASHIPEELE KK, EIBURU SYST KK filed Critical ASHIPEELE KK
Priority to JP9962678A priority Critical patent/JPS5526741A/en
Publication of JPS5526741A publication Critical patent/JPS5526741A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To realize effective use for radio communication service for ships by preventing an outsider from obtaining communication contents, by previously rearranging digital signals, obtained by sampling a sound signal, in fixed order. CONSTITUTION:An analog signal, sound signal (a), is sampled and converted into pulse information (b) consisting of A,B,C,D, and E, which is rearranged (c) in the previously-fixed order of C,E,B,D, and A and through conversion into analog information, information (d) of a waveform completely without reference to waveform (a) of original analog communication information can be obtained and is sent out. Synchronizing with the transmission side, the reception side samples and converts received information (d) into pulse information (c), which is rearranged in the opposite direction to previous order (d), thereby obtaining original analog signal (a).
JP9962678A 1978-08-16 1978-08-16 Secret talk unit Pending JPS5526741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9962678A JPS5526741A (en) 1978-08-16 1978-08-16 Secret talk unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9962678A JPS5526741A (en) 1978-08-16 1978-08-16 Secret talk unit

Publications (1)

Publication Number Publication Date
JPS5526741A true JPS5526741A (en) 1980-02-26

Family

ID=14252286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9962678A Pending JPS5526741A (en) 1978-08-16 1978-08-16 Secret talk unit

Country Status (1)

Country Link
JP (1) JPS5526741A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859488A (en) * 1981-10-06 1983-04-08 ニコ−電子株式会社 Secret communication system
JPS5860847A (en) * 1981-10-06 1983-04-11 Niko Denshi Kk Signal converting method for secret communication
JPS5884554A (en) * 1981-11-14 1983-05-20 Hiroshi Kashiwagi Voice communication method
WO1983004151A1 (en) * 1982-05-17 1983-11-24 Sony Corporation Secret-speech device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5859488A (en) * 1981-10-06 1983-04-08 ニコ−電子株式会社 Secret communication system
JPS5860847A (en) * 1981-10-06 1983-04-11 Niko Denshi Kk Signal converting method for secret communication
JPS5884554A (en) * 1981-11-14 1983-05-20 Hiroshi Kashiwagi Voice communication method
WO1983004151A1 (en) * 1982-05-17 1983-11-24 Sony Corporation Secret-speech device

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