FR2152161A5 - - Google Patents

Info

Publication number
FR2152161A5
FR2152161A5 FR7231624A FR7231624A FR2152161A5 FR 2152161 A5 FR2152161 A5 FR 2152161A5 FR 7231624 A FR7231624 A FR 7231624A FR 7231624 A FR7231624 A FR 7231624A FR 2152161 A5 FR2152161 A5 FR 2152161A5
Authority
FR
France
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.)
Expired
Application number
FR7231624A
Other languages
French (fr)
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Application granted granted Critical
Publication of FR2152161A5 publication Critical patent/FR2152161A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
FR7231624A 1971-09-07 1972-09-06 Expired FR2152161A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17800071A 1971-09-07 1971-09-07

Publications (1)

Publication Number Publication Date
FR2152161A5 true FR2152161A5 (enrdf_load_stackoverflow) 1973-04-20

Family

ID=22650774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7231624A Expired FR2152161A5 (enrdf_load_stackoverflow) 1971-09-07 1972-09-06

Country Status (7)

Country Link
JP (1) JPS4837003A (enrdf_load_stackoverflow)
CH (1) CH567843A5 (enrdf_load_stackoverflow)
DE (1) DE2243113A1 (enrdf_load_stackoverflow)
FR (1) FR2152161A5 (enrdf_load_stackoverflow)
GB (1) GB1399365A (enrdf_load_stackoverflow)
IT (1) IT972344B (enrdf_load_stackoverflow)
NL (1) NL7212139A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416597A1 (fr) * 1971-12-09 1979-08-31 Berger Claude Procede de codage d'un signal

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167700A (en) * 1977-05-02 1979-09-11 Motorola, Inc. Digital voice protection system and method
JPS5961242A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd 秘匿通信システム
CA1226914A (en) * 1984-01-26 1987-09-15 The University Of British Columbia Modem for pseudo noise communication on a.c. lines
JPS61199341A (ja) * 1985-02-28 1986-09-03 Tamura Electric Works Ltd コ−ドレス電話装置
CN105071886B (zh) * 2015-08-24 2017-12-19 苏州华启智能科技有限公司 一种车载广播系统音频总线复用系统
WO2019035110A2 (en) * 2017-08-18 2019-02-21 Francis Fergus Gorman DEVICE FOR OPERATING A SIREN TO PRODUCE A PLURALITY OF DIFFERENT SOUNDS, AND METHOD FOR OPERATING A SIREN FOR PRODUCING A PLURALITY OF DIFFERENT SOUNDS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416597A1 (fr) * 1971-12-09 1979-08-31 Berger Claude Procede de codage d'un signal

Also Published As

Publication number Publication date
GB1399365A (en) 1975-07-02
IT972344B (it) 1974-05-20
DE2243113A1 (de) 1973-03-15
NL7212139A (enrdf_load_stackoverflow) 1973-03-09
JPS4837003A (enrdf_load_stackoverflow) 1973-05-31
CH567843A5 (enrdf_load_stackoverflow) 1975-10-15

Similar Documents

Publication Publication Date Title
FR2152161A5 (enrdf_load_stackoverflow)
AU2691671A (enrdf_load_stackoverflow)
AU3005371A (enrdf_load_stackoverflow)
AU2684071A (enrdf_load_stackoverflow)
AU2726271A (enrdf_load_stackoverflow)
AU2742671A (enrdf_load_stackoverflow)
AU2894671A (enrdf_load_stackoverflow)
AU2941471A (enrdf_load_stackoverflow)
AU2952271A (enrdf_load_stackoverflow)
AU2880771A (enrdf_load_stackoverflow)
AU3038671A (enrdf_load_stackoverflow)
AU2669471A (enrdf_load_stackoverflow)
AU2854371A (enrdf_load_stackoverflow)
AU2684171A (enrdf_load_stackoverflow)
AU2706571A (enrdf_load_stackoverflow)
AU2724971A (enrdf_load_stackoverflow)
AU2740271A (enrdf_load_stackoverflow)
AU2755871A (enrdf_load_stackoverflow)
AU2836771A (enrdf_load_stackoverflow)
AU2875571A (enrdf_load_stackoverflow)
AU2927871A (enrdf_load_stackoverflow)
AU3025871A (enrdf_load_stackoverflow)
AU2837671A (enrdf_load_stackoverflow)
AU2963771A (enrdf_load_stackoverflow)
AU2885171A (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
ST Notification of lapse