CH227464A - Method for the transmission of messages which are disguised with the aid of control signals. - Google Patents
Method for the transmission of messages which are disguised with the aid of control signals.Info
- Publication number
- CH227464A CH227464A CH227464DA CH227464A CH 227464 A CH227464 A CH 227464A CH 227464D A CH227464D A CH 227464DA CH 227464 A CH227464 A CH 227464A
- Authority
- CH
- Switzerland
- Prior art keywords
- disguised
- messages
- aid
- transmission
- control signals
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2405500X | 1942-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH227464A true CH227464A (en) | 1943-06-15 |
Family
ID=4569051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH227464D CH227464A (en) | 1942-01-29 | 1942-01-29 | Method for the transmission of messages which are disguised with the aid of 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 (29)
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 |
BR9606663A (en) * | 1995-05-17 | 1997-09-16 | Chamberlain Group Inc | Transmitter to send an encrypted signal to control a receiver actuator to receive an encrypted signal from a transmitter and to generate an actuation signal and receiver to receive an encrypted radio frequency signal from a transmitter and to generate an actuation signal |
US7492905B2 (en) | 1995-05-17 | 2009-02-17 | The Chamberlain Group, Inc. | Rolling code security system |
US6980655B2 (en) | 2000-01-21 | 2005-12-27 | 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 | Sequence coding for ASCII text encryption |
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 |
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 |
US8422667B2 (en) | 2005-01-27 | 2013-04-16 | The Chamberlain Group, Inc. | 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 |
US11423717B2 (en) | 2018-08-01 | 2022-08-23 | The Chamberlain Group Llc | 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 |
-
1942
- 1942-01-29 CH CH227464D patent/CH227464A/en unknown
- 1942-02-03 DE DEP1320D patent/DE846562C/en not_active Expired
- 1942-12-08 FR FR891775D patent/FR891775A/en not_active Expired
-
1944
- 1944-02-26 US US524079A patent/US2405500A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE846562C (en) | 1952-08-14 |
FR891775A (en) | 1944-03-28 |
US2405500A (en) | 1946-08-06 |
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