Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
  • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
  • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
  • H03K3/03—Astable circuits
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
  • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
  • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
  • B06B1/0207—Driving circuits
  • B06B1/0223—Driving circuits for generating signals continuous in time
  • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
  • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
  • B06B2201/50—Application to a particular transducer type
  • B06B2201/55—Piezoelectric transducer

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Devices For Supply Of Signal Current (AREA)
• Piezo-Electric Transducers For Audible Bands (AREA)
• Circuit For Audible Band Transducer (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=25496592

Family Applications (1)

Country Status (8)

Families Citing this family (4)

Family Cites Families (2)

• 1978
  • 1978-10-27 US US05/955,267 patent/US4225856A/en not_active Expired - Lifetime
• 1979
  • 1979-10-05 CA CA000337105A patent/CA1121619A/fr not_active Expired
  • 1979-10-18 BR BR7906720A patent/BR7906720A/pt unknown
  • 1979-10-26 DK DK453379A patent/DK453379A/da not_active Application Discontinuation
  • 1979-10-26 DE DE19792943417 patent/DE2943417A1/de not_active Withdrawn
  • 1979-10-26 JP JP13861279A patent/JPS5577797A/ja active Pending
  • 1979-10-26 BE BE0/197846A patent/BE879670A/fr unknown
  • 1979-10-26 GB GB7937218A patent/GB2035653A/en not_active Withdrawn

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