Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/26—Devices for calling a subscriber
  • H04M1/30—Devices which can set up and transmit only one digit at a time
  • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
  • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/56—Arrangements for indicating or recording the called number at the calling subscriber's set
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/26—Devices for calling a subscriber
  • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
  • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
  • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Telephone Set Structure (AREA)
• Devices For Supply Of Signal Current (AREA)
• Push-Button Switches (AREA)
• Prepayment Telephone Systems (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=27273684

Family Applications (1)

Country Status (10)

Families Citing this family (9)

Family Cites Families (10)

• 1976
  • 1976-07-15 SE SE7608076A patent/SE7608076L/xx unknown
  • 1976-07-23 FR FR7622514A patent/FR2319255A1/fr active Granted
  • 1976-07-23 GB GB30907/76A patent/GB1560292A/en not_active Expired
  • 1976-07-23 NL NL7608226A patent/NL7608226A/xx not_active Application Discontinuation
  • 1976-07-23 DD DD194034A patent/DD125368A5/xx unknown
  • 1976-07-23 ES ES450119A patent/ES450119A1/es not_active Expired
  • 1976-07-24 GR GR51338A patent/GR60837B/el unknown
  • 1976-07-24 DE DE2633419A patent/DE2633419B2/de not_active Withdrawn
  • 1976-07-26 JP JP51088971A patent/JPS5234603A/ja active Pending
• 1979
  • 1979-02-09 US US06/010,986 patent/US4267409A/en not_active Expired - Lifetime

Also Published As

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