MX150514A - IMPROVEMENTS TO THE SYSTEM TO ENCRYPT INFORMATION FROM R.F. IN DIGITAL FORM - Google Patents

IMPROVEMENTS TO THE SYSTEM TO ENCRYPT INFORMATION FROM R.F. IN DIGITAL FORM

Info

Publication number: MX150514A
Authority: MX; Mexico
Prior art keywords: digital form; encrypt information; encrypt; information; digital
Prior art date: 1980-06-19

Application number

MX187888A

Other languages

Spanish (es)

Inventor

Leo I Bluestein

Paul Ed Crandell

David A Drake

Leo Jedynak

Larry W Simpson

Original Assignee

Oak Industries Inc

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.)

1980-06-19

Filing date

1981-06-19

Publication date

1984-05-16

1981-06-19 Application filed by Oak Industries Inc filed Critical Oak Industries Inc

1984-05-16 Publication of MX150514A publication Critical patent/MX150514A/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/601—Broadcast encryption

Landscapes

Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Storage Device Security (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Circuits Of Receivers In General (AREA)

MX187888A 1980-06-19 1981-06-19 IMPROVEMENTS TO THE SYSTEM TO ENCRYPT INFORMATION FROM R.F. IN DIGITAL FORM MX150514A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US16098580A	1980-06-19	1980-06-19

Publications (1)

Publication Number	Publication Date
MX150514A true MX150514A (en)	1984-05-16

Family

ID=22579317

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
MX187888A MX150514A (en)	1980-06-19	1981-06-19	IMPROVEMENTS TO THE SYSTEM TO ENCRYPT INFORMATION FROM R.F. IN DIGITAL FORM

Country Status (11)

Country	Link
JP (1)	JPS5730438A (en)
AU (1)	AU539774B2 (en)
BR (1)	BR8103848A (en)
CA (1)	CA1162623A (en)
DE (1)	DE3124150C2 (en)
FR (1)	FR2485305A1 (en)
GB (1)	GB2079109B (en)
GR (1)	GR74584B (en)
IL (1)	IL63102A (en)
MX (1)	MX150514A (en)
NL (1)	NL8102940A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1177558A (en) *	1982-04-15	1984-11-06	Groupe Videotron Ltee. (Le)	Cable network data transmission system
US4531020A (en) *	1982-07-23	1985-07-23	Oak Industries Inc.	Multi-layer encryption system for the broadcast of encrypted information
JPH0614641B2 (en) *	1983-03-29	1994-02-23	富士通株式会社	Key information delivery processing method
JPS6032449A (en) *	1983-08-01	1985-02-19	Matsushita Electric Ind Co Ltd	Ciphered digital broadcast equipment
EP0167442A3 (en) *	1984-06-29	1986-12-30	Fairchild Weston Systems Inc.	Secure communication system
US4751732A (en) *	1984-07-06	1988-06-14	Kabushiki Kaisha Toshiba	Broadcasting system
JPS6120442A (en) *	1984-07-09	1986-01-29	Toshiba Corp	Chargeable broadcasting system
DE3439120A1 (en) *	1984-10-25	1986-05-07	Philips Kommunikations Industrie AG, 8500 Nürnberg	Method for identifying a subscriber station of a telecommunications network
DE3501178A1 (en) *	1985-01-16	1986-07-17	Blaupunkt-Werke Gmbh, 3200 Hildesheim	METHOD AND CIRCUIT ARRANGEMENT FOR PREVENTING THE UNAUTHORIZED RECEPTION OF ENCRYPTED TELEVISION SIGNALS
JPH0685517B2 (en) *	1985-06-28	1994-10-26	ソニー株式会社	Information service system
US4866770A (en) *	1986-07-08	1989-09-12	Scientific Atlanta, Inc.	Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
DE3715081A1 (en) *	1987-05-06	1988-11-17	Siemens Ag	METHOD FOR ENCRYPTING DIGITAL IMAGE SIGNALS
DE3731532A1 (en) *	1987-09-18	1989-03-30	Siemens Ag	Process for transmitting encoded picture signals
DE3822354A1 (en) *	1988-07-01	1990-01-04	Siemens Ag	METHOD AND ARRANGEMENT FOR scrambling image signals
DE4419634A1 (en) *	1994-06-04	1995-12-07	Esd Vermoegensverwaltungsgesel	Decryption device for digital information and method for performing the encryption and decryption of this
DE4420967C2 (en) *	1994-06-16	2000-02-10	Esd Vermoegensverwaltungsgesel	Decryption device for digital information and method for carrying out the encryption and decryption of this using the decryption device
DE4420970A1 (en) *	1994-06-16	1995-12-21	Esd Vermoegensverwaltungsgesel	Decryption device for decryption algorithms and method for performing the encryption and decryption thereof
DE19619299A1 (en) *	1996-05-13	1997-12-18	Siemens Ag	Code key distribution method in fibre distributed data interface (FDDI) transmission network
DE19649292A1 (en) *	1996-11-28	1998-06-04	Deutsche Telekom Ag	Access protection method for pay television
GB2393367B (en) *	1999-04-16	2004-05-26	Fujitsu Ltd	Optical line terminal
JP4201430B2 (en)	1999-04-16	2008-12-24	富士通株式会社	Optical subscriber line termination equipment
GB2355819A (en) *	1999-10-26	2001-05-02	Marconi Comm Ltd	Authentication of data and software
GB2367726B (en) *	2000-10-07	2003-04-23	Complementary Tech Ltd	Communications with remote embedded applications

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH516854A (en) *	1969-11-29	1971-12-15	Ciba Geigy Ag	Method and device for encrypted transmission of information
DE2706421C2 (en) *	1977-02-16	1979-03-15	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Procedure for setting ciphertext generators in encryption devices
CH604432A5 (en) *	1977-03-16	1978-09-15	Europ Handelsges Anst

1981
- 1981-06-15 IL IL63102A patent/IL63102A/en unknown
- 1981-06-16 AU AU71871/81A patent/AU539774B2/en not_active Ceased
- 1981-06-17 CA CA000380037A patent/CA1162623A/en not_active Expired
- 1981-06-17 BR BR8103848A patent/BR8103848A/en unknown
- 1981-06-18 FR FR8112026A patent/FR2485305A1/en active Pending
- 1981-06-18 GR GR65275A patent/GR74584B/el unknown
- 1981-06-18 NL NL8102940A patent/NL8102940A/en not_active Application Discontinuation
- 1981-06-19 DE DE3124150A patent/DE3124150C2/en not_active Expired
- 1981-06-19 MX MX187888A patent/MX150514A/en unknown
- 1981-06-19 JP JP9515581A patent/JPS5730438A/en active Granted
- 1981-06-19 GB GB8119018A patent/GB2079109B/en not_active Expired

Also Published As

Publication number	Publication date
JPS5730438A (en)	1982-02-18
AU7187181A (en)	1981-12-24
GR74584B (en)	1984-06-29
IL63102A (en)	1984-03-30
NL8102940A (en)	1982-01-18
BR8103848A (en)	1982-03-09
GB2079109A (en)	1982-01-13
DE3124150C2 (en)	1985-03-28
GB2079109B (en)	1984-04-11
CA1162623A (en)	1984-02-21
JPS63976B2 (en)	1988-01-09
DE3124150A1 (en)	1982-03-18
AU539774B2 (en)	1984-10-18
IL63102A0 (en)	1981-09-13
FR2485305A1 (en)	1981-12-24

Publication	Publication Date	Title
MX150514A (en)	1984-05-16	IMPROVEMENTS TO THE SYSTEM TO ENCRYPT INFORMATION FROM R.F. IN DIGITAL FORM
IT8025252A0 (en)	1980-10-09	VIDEODIS SYSTEM.
NO160050C (en)	1989-03-08	SERUM-SEPARATION MEDIA.
NO770783L (en)	1977-09-20	DATA TRANSFER SYSTEM.
MX155231A (en)	1988-02-08	IMPROVEMENTS IN THE SYSTEM FOR ENCRYPTING AND DECREASING IN MULTIPLE LAYERS DISSEMINATED DIGITAL INFORMATION
DE3382152D1 (en)	1991-03-07	SECURITY STORAGE SYSTEM.
DE3381653D1 (en)	1990-07-19	HIERARCHICAL STORAGE SYSTEM.
NO810794L (en)	1981-09-11	FLUIDUMREGISTER SYSTEM.
DE3280326D1 (en)	1991-05-29	ELECTROMECHANICAL DRIVE SYSTEM.
DE3381857D1 (en)	1990-10-11	STORAGE SYSTEM.
ES266052Y (en)	1983-07-16	ROAD RECORD.
NL7900851A (en)	1979-08-06	DIGITAL TIRE RECORDING SYSTEM.
IT8224751A0 (en)	1982-12-14	CASE IN PARTICULAR CASE FOR DOCUMENTS.
ES518614A0 (en)	1984-06-16	A DATA CONVERSION ARRANGEMENT FOR USE IN A FACSIMIL SYSTEM.
ES499125A0 (en)	1982-06-01	DEVICE TO RETRIEVE CODED DIGITAL INFORMATION.
IT8021804A0 (en)	1980-05-05	REPORTING SYSTEM.
ES513741A0 (en)	1983-03-16	DEVICE TO SUPPLY BANKNOTES.
DE3381524D1 (en)	1990-06-07	INFORMATION TRANSFER ARRANGEMENT.
DE3177219D1 (en)	1990-11-15	STORAGE SYSTEM.
NO771139L (en)	1977-10-10	COMPATIBLE AM-STEREO BROADCASTING SYSTEM.
IT8220492A0 (en)	1982-03-31	GRINDER FOR PLASTICS.
IT8025248A0 (en)	1980-10-09	HOLOPHONE RECORDING SYSTEM.
IT8124805A0 (en)	1981-10-30	ELECTROPHOTOCOPIER FOR TECHNICAL DRAWINGS.
ES264930Y (en)	1983-06-01	ROAD RECORD.
IT8021625A0 (en)	1980-04-24	ENGINE SYSTEM.