Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/738—Interface circuits for coupling substations to external telephone lines
  • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03G—CONTROL OF AMPLIFICATION
  • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
  • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude without controlling loop
• • 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
  • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Emergency Protection Circuit Devices (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7047859

Family Applications (1)

Country Status (4)

• 1964
  • 1964-03-03 DE DED43786A patent/DE1218529B/de active Pending
• 1965
  • 1965-02-26 BE BE660305A patent/BE660305A/xx unknown
  • 1965-03-01 NL NL6502562A patent/NL6502562A/xx unknown
  • 1965-03-03 GB GB909665A patent/GB1091731A/en not_active Expired

Also Published As

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