Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q1/00—Details of selecting apparatus or arrangements
  • H04Q1/18—Electrical details
  • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
  • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
  • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
  • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
  • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
  • G06Q20/00—Payment architectures, schemes or protocols
  • G06Q20/38—Payment protocols; Details thereof
  • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
  • G06Q20/401—Transaction verification
  • G06Q20/4012—Verifying personal identification numbers [PIN]
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L27/00—Modulated-carrier systems
  • H04L27/26—Systems using multi-frequency codes
  • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
• • 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
  • H04M1/275—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 implemented by means of portable electronic directories
• • 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
  • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
  • H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
  • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
  • H04M11/066—Telephone sets adapted for data transmision

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Physics & Mathematics (AREA)
• Finance (AREA)
• Strategic Management (AREA)
• Computer Security & Cryptography (AREA)
• General Business, Economics & Management (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Telephonic Communication Services (AREA)
• Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
• Compression, Expansion, Code Conversion, And Decoders (AREA)
• Transmitters (AREA)
• Time-Division Multiplex Systems (AREA)
• Communication Control (AREA)
• Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9483023

Family Applications (1)

Country Status (17)

Families Citing this family (16)

Family Cites Families (12)

• 1995
  • 1995-09-25 FR FR9511414A patent/FR2739238B1/fr not_active Expired - Fee Related
• 1996
  • 1996-09-25 JP JP9513186A patent/JPH11511628A/ja not_active Ceased
  • 1996-09-25 KR KR1019980702215A patent/KR19990063748A/ko not_active Application Discontinuation
  • 1996-09-25 PT PT96932653T patent/PT852867E/pt unknown
  • 1996-09-25 WO PCT/FR1996/001500 patent/WO1997012467A1/fr not_active Application Discontinuation
  • 1996-09-25 CA CA002231826A patent/CA2231826A1/en not_active Abandoned
  • 1996-09-25 US US08/719,795 patent/US5859913A/en not_active Expired - Fee Related
  • 1996-09-25 AU AU71353/96A patent/AU7135396A/en not_active Abandoned
  • 1996-09-25 DK DK96932653T patent/DK0852867T3/da active
  • 1996-09-25 EP EP96932653A patent/EP0852867B1/fr not_active Expired - Lifetime
  • 1996-09-25 ES ES96932653T patent/ES2160838T3/es not_active Expired - Lifetime
  • 1996-09-25 AT AT96932653T patent/ATE202247T1/de not_active IP Right Cessation
  • 1996-09-25 DE DE69613383T patent/DE69613383T2/de not_active Expired - Fee Related
  • 1996-09-25 BR BR9610649A patent/BR9610649A/pt not_active Application Discontinuation
  • 1996-09-25 CN CN96198355A patent/CN1202289A/zh active Pending
• 1998
  • 1998-03-24 NO NO981334A patent/NO981334L/no not_active Application Discontinuation
• 2001
  • 2001-09-13 GR GR20010401479T patent/GR3036621T3/el not_active IP Right Cessation

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