AU3179171A – Voice privacy device
– Google Patents
AU3179171A – Voice privacy device
– Google Patents
Voice privacy device
Info
Publication number
AU3179171A
AU3179171A
AU31791/71A
AU3179171A
AU3179171A
AU 3179171 A
AU3179171 A
AU 3179171A
AU 31791/71 A
AU31791/71 A
AU 31791/71A
AU 3179171 A
AU3179171 A
AU 3179171A
AU 3179171 A
AU3179171 A
AU 3179171A
Authority
AU
Australia
Prior art keywords
privacy device
voice privacy
voice
privacy
Prior art date
1970-07-30
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
AU31791/71A
Inventor
K. Miller Charles
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.)
Technical Communications Corp
Original Assignee
Technical Communications Corp
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.)
1970-07-30
Filing date
1971-07-29
Publication date
1973-02-01
1971-07-29
Application filed by Technical Communications Corp
filed
Critical
Technical Communications Corp
1973-02-01
Publication of AU3179171A
publication
Critical
patent/AU3179171A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
H04K1/00—Secret communication
H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band
AU31791/71A
1970-07-30
1971-07-29
Voice privacy device
Expired
AU3179171A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US5965970A
1970-07-30
1970-07-30
USUS59659
1970-07-30
Publications (1)
Publication Number
Publication Date
AU3179171A
true
AU3179171A
(en)
1973-02-01
Family
ID=22024396
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU31791/71A
Expired
AU3179171A
(en)
1970-07-30
1971-07-29
Voice privacy device
Country Status (6)
Country
Link
US
(1)
US3723878A
(en)
AU
(1)
AU3179171A
(en)
CA
(1)
CA939843A
(en)
DE
(1)
DE2138228A1
(en)
FR
(1)
FR2103804A5
(en)
IL
(1)
IL37241A0
(en)
Families Citing this family (27)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2231737C1
(en)
*
1972-06-29
1990-05-23
Krupp Atlas Electronik Gmbh
US4013837A
(en)
*
1972-09-29
1977-03-22
Datotek, Inc.
Voice security method and system
US3893031A
(en)
*
1972-11-08
1975-07-01
Boeing Co
Synchronization system for voice privacy unit
US3909534A
(en)
*
1973-09-07
1975-09-30
Boeing Co
Voice privacy unit for intercommunication systems
US4091423A
(en)
*
1975-03-17
1978-05-23
Datotek, Inc.
Synchronous digital data scrambling system
US4169212A
(en)
*
1975-04-14
1979-09-25
Datotek, Inc.
Multi-mode digital enciphering system
US4099027A
(en)
*
1976-01-02
1978-07-04
General Electric Company
Speech scrambler
US4159399A
(en)
*
1976-09-29
1979-06-26
Tokyo Shibaura Electric Co., Ltd.
Security communication system using polarity inversion
US4160875A
(en)
*
1977-05-12
1979-07-10
Kahn Leonard R
Security system
US4188580A
(en)
*
1977-10-20
1980-02-12
Telesync Corporation
Secure communication system
US4195202A
(en)
*
1978-01-03
1980-03-25
Technical Communications Corporation
Voice privacy system with amplitude masking
JPS54129901A
(en)
*
1978-03-31
1979-10-08
Toshiba Corp
Secret communication system
DE2854832C2
(en)
*
1978-12-19
1980-11-20
Siemens Ag, 1000 Berlin Und 8000 Muenchen
Receiving circuit in an interference-suppressing message transmission system with narrow-band conventional message modulation and additional pseudo-random phase-shift modulation
US4278840A
(en)
*
1979-03-23
1981-07-14
Datotek, Inc.
Dynamic frequency and time voice encryption system and method
US4268720A
(en)
*
1979-05-25
1981-05-19
Gte Laboratories Incorporated
Scrambler speech transmission and synchronization system
IE52736B1
(en)
*
1980-12-16
1988-02-03
Mcwhirter Holding Pty Limited
Method and apparatus for verification of recorded messages
US4401854A
(en)
*
1981-08-03
1983-08-30
Bell Telephone Laboratories, Incorporated
Simultaneous transmission of an analog message signal and a digital data signal
US4433211A
(en)
*
1981-11-04
1984-02-21
Technical Communications Corporation
Privacy communication system employing time/frequency transformation
US4573205A
(en)
*
1983-08-22
1986-02-25
At&T Bell Laboratories
Technique for secure communications on FM radio channels
DE3481887D1
(en)
*
1983-09-29
1990-05-10
Nippon Telegraph & Telephone
RADIO RECEIVING SYSTEM FOR A PHASE-MODULATED SIGNAL.
EP0139496B1
(en)
*
1983-09-30
1990-05-23
Nippon Telegraph And Telephone Corporation
A radio transmission system for a phase modulation signal
US4638357A
(en)
*
1984-01-20
1987-01-20
Home Box Office, Inc.
Audio scrambler
CA1252560A
(en)
*
1984-01-27
1989-04-11
Frank T. Meriwether
Method and system for scrambling information signals
CN1143218C
(en)
*
1999-03-03
2004-03-24
索尼公司
Recording device, recording method, reproducing device and reproducing method
US7069590B1
(en)
*
2000-02-17
2006-06-27
Microsoft Corporation
System and method for protecting data streams in hardware components
US8792640B2
(en)
2008-01-29
2014-07-29
Sony Corporation
Systems and methods for securing a digital communications link
CN101960847A
(en)
*
2008-04-11
2011-01-26
松下电器产业株式会社
Transmitter and receiver
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2479338A
(en)
*
1945-01-13
1949-08-16
Leonide E Gabrilovitch
Inverter and distorter for secret communications
US2905747A
(en)
*
1953-09-22
1959-09-22
Rca Corp
Secrecy systems
US3180927A
(en)
*
1961-09-07
1965-04-27
Itt
Cryptosecure transmission system
US3341659A
(en)
*
1964-01-24
1967-09-12
Burroughs Corp
Controlled bandwidth coded voice communication system
US3610828A
(en)
*
1967-05-23
1971-10-05
Technical Communications
Privacy communication system
1970
1970-07-30
US
US00059659A
patent/US3723878A/en
not_active
Expired – Lifetime
1971
1971-07-06
IL
IL37241A
patent/IL37241A0/en
unknown
1971-07-29
FR
FR7127837A
patent/FR2103804A5/fr
not_active
Expired
1971-07-29
AU
AU31791/71A
patent/AU3179171A/en
not_active
Expired
1971-07-30
CA
CA119,594A
patent/CA939843A/en
not_active
Expired
1971-07-30
DE
DE19712138228
patent/DE2138228A1/en
active
Pending
Also Published As
Publication number
Publication date
US3723878A
(en)
1973-03-27
IL37241A0
(en)
1971-11-29
DE2138228A1
(en)
1972-03-16
CA939843A
(en)
1974-01-08
FR2103804A5
(en)
1972-04-14
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None