FR891775A - Method for scrambling messages using control signals - Google Patents

Method for scrambling messages using control signals

Info

Publication number
FR891775A
FR891775A FR891775DA FR891775A FR 891775 A FR891775 A FR 891775A FR 891775D A FR891775D A FR 891775DA FR 891775 A FR891775 A FR 891775A
Authority
FR
France
Prior art keywords
control signals
scrambling
messages
scrambling messages
signals
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.)
Expired
Application number
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Application granted granted Critical
Publication of FR891775A publication Critical patent/FR891775A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Selective Calling Equipment (AREA)
FR891775D 1942-01-29 1942-12-08 Method for scrambling messages using control signals Expired FR891775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2405500X 1942-01-29

Publications (1)

Publication Number Publication Date
FR891775A true FR891775A (en) 1944-03-28

Family

ID=4569051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR891775D Expired FR891775A (en) 1942-01-29 1942-12-08 Method for scrambling messages using control signals

Country Status (4)

Country Link
US (1) US2405500A (en)
CH (1) CH227464A (en)
DE (1) DE846562C (en)
FR (1) FR891775A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT454079A (en) * 1948-07-02
US4184117A (en) * 1956-04-16 1980-01-15 The United States Of America As Represented By The Secretary Of The Army Communication security method and system
DE1090280B (en) * 1957-08-23 1960-10-06 Funkwerk Dresden Veb Procedure for radio or wire connections to establish a certain operating mode between two or more participants with equal rights
NL244086A (en) * 1958-12-10
DE2318247C3 (en) * 1973-04-11 1981-03-26 Siemens AG, 1000 Berlin und 8000 München Device for the disguised transmission of speech signals
CH580893A5 (en) * 1973-07-02 1976-10-15 Gretag Ag
US4221931A (en) * 1977-10-17 1980-09-09 Harris Corporation Time division multiplied speech scrambler
US4228321A (en) * 1978-05-16 1980-10-14 Bell Telephone Laboratories, Incorporated Privacy transmission system with remote key control
US6175312B1 (en) 1990-05-29 2001-01-16 Microchip Technology Incorporated Encoder and decoder microchips and remote control devices for secure unidirectional communication
US6980655B2 (en) 2000-01-21 2005-12-27 The Chamberlain Group, Inc. Rolling code security system
CA2193846C (en) 1995-05-17 2004-02-17 Bradford L. Farris Rolling code security system
US7492905B2 (en) 1995-05-17 2009-02-17 The Chamberlain Group, Inc. Rolling code security system
US6690796B1 (en) * 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system
DE19520232C1 (en) * 1995-06-01 1996-08-14 Siemens Ag Method for encrypting sequences consisting of number-coded information units
US7058817B1 (en) 1999-07-02 2006-06-06 The Chase Manhattan Bank System and method for single sign on process for websites with multiple applications and services
US8849716B1 (en) 2001-04-20 2014-09-30 Jpmorgan Chase Bank, N.A. System and method for preventing identity theft or misuse by restricting access
US7689506B2 (en) 2001-06-07 2010-03-30 Jpmorgan Chase Bank, N.A. System and method for rapid updating of credit information
US7266839B2 (en) 2001-07-12 2007-09-04 J P Morgan Chase Bank System and method for providing discriminated content to network users
US7987501B2 (en) 2001-12-04 2011-07-26 Jpmorgan Chase Bank, N.A. System and method for single session sign-on
US20180165441A1 (en) 2002-03-25 2018-06-14 Glenn Cobourn Everhart Systems and methods for multifactor authentication
US8301493B2 (en) 2002-11-05 2012-10-30 Jpmorgan Chase Bank, N.A. System and method for providing incentives to consumers to share information
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
US12149618B2 (en) 2005-01-27 2024-11-19 The Chamberlain Group Llc Method and apparatus to facilitate transmission of an encrypted rolling code
US8428259B2 (en) 2005-06-09 2013-04-23 General Dynamics Advanced Information Systems Apparatus and method for all-optical encryption and decryption of an optical signal
US8582767B1 (en) 2010-09-27 2013-11-12 Charles C. Hardy Cryptographic device sharing among a plurality of communication links
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
WO2020028502A1 (en) 2018-08-01 2020-02-06 The Chamberlain Group, Inc. Movable barrier operator and transmitter pairing over a network
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training

Also Published As

Publication number Publication date
DE846562C (en) 1952-08-14
CH227464A (en) 1943-06-15
US2405500A (en) 1946-08-06

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