Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L63/00—Network architectures or network communication protocols for network security
  • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
  • H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/30—Individual registration on entry or exit not involving the use of a pass
  • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
  • G07C9/33—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L12/00—Data switching networks
  • H04L12/02—Details
  • H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
  • H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
  • H04M11/085—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter using a television receiver, e.g. viewdata system

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Computer Security & Cryptography (AREA)
• Computing Systems (AREA)
• General Engineering & Computer Science (AREA)
• Computer Hardware Design (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Telephonic Communication Services (AREA)
• Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
• Data Exchanges In Wide-Area Networks (AREA)
• Storage Device Security (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=6051053

Family Applications (1)

Country Status (9)

Families Citing this family (6)

• 1978
  • 1978-09-30 DE DE19782842777 patent/DE2842777A1/en not_active Ceased
• 1979
  • 1979-09-05 LU LU81654A patent/LU81654A1/en unknown
  • 1979-09-20 ES ES484333A patent/ES8101828A1/en not_active Expired
  • 1979-09-21 AT AT0622479A patent/AT379264B/en not_active IP Right Cessation
  • 1979-09-24 SE SE7907899A patent/SE7907899L/en not_active Application Discontinuation
  • 1979-09-26 CH CH866679A patent/CH647116A5/en not_active IP Right Cessation
  • 1979-09-28 BE BE0/197370A patent/BE879065A/en not_active IP Right Cessation
  • 1979-09-28 JP JP12428179A patent/JPS5549086A/en active Pending
  • 1979-09-28 NL NL7907247A patent/NL7907247A/en not_active Application Discontinuation

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