Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J5/00—Devices or arrangements for controlling character selection
  • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
  • B41J5/14—Construction of key levers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J7/00—Type-selecting or type-actuating mechanisms
  • B41J7/54—Selecting arrangements including combinations, permutation, summation, or aggregation means
  • B41J7/68—Selecting arrangements including combinations, permutation, summation, or aggregation means with means for selectively closing an electric circuit for type presentation
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
  • H03K17/96—Touch switches
  • H03K17/964—Piezoelectric touch switches
  • H03K17/9643—Piezoelectric touch switches using a plurality of detectors, e.g. keyboard
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
  • H03K17/965—Switches controlled by moving an element forming part of the switch
  • H03K17/967—Switches controlled by moving an element forming part of the switch having a plurality of control members, e.g. keyboard
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
  • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
• • 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

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)
• Character Spaces And Line Spaces In Printers (AREA)
• Impact Printers (AREA)
• Push-Button Switches (AREA)
• Input From Keyboards Or The Like (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10436697

Family Applications (1)

Country Status (8)

Families Citing this family (12)

Family Cites Families (4)

• 1964
  • 1964-11-06 GB GB45303/64A patent/GB1028059A/en not_active Expired
• 1965
  • 1965-09-20 US US488317A patent/US3353038A/en not_active Expired - Lifetime
  • 1965-10-27 DE DE19651499177 patent/DE1499177A1/de active Pending
  • 1965-10-28 SE SE13923/65A patent/SE335549B/xx unknown
  • 1965-11-05 FR FR37434A patent/FR1454151A/fr not_active Expired
  • 1965-11-05 NL NL6514436A patent/NL6514436A/xx unknown
  • 1965-11-05 CH CH1526565A patent/CH436789A/de unknown
  • 1965-11-08 BE BE671971D patent/BE671971A/xx unknown

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