Resources Contact Us Home
Membrane for an electroacoustic transducer

Image Number 5 for United States Patent #7866439.

A membrane (2') for an electroacoustic transducer (1) is disclosed having a first area (A1), a second area (A2), which is arranged for translatory movement in relation to said first area (A1), and a third area (A3), which connects said first (A1) and said second area (A2), wherein local, planar spring constants (psc) along a closed line (L) within said third area (A3) encompassing said second area (A2), are determined in such a way that local, translatory spring constants (tsc) along said line (L) in a direction (DM) of said translatory movement are substantially constant or exclusively have substantially flat, mutual changes.

  Recently Added Patents
Low cost mesh network capability
System and method for distributing emergency data messages to public safety answering points in a balanced manner
Battery cell separator
Memory device, test operation method thereof, and system including the same
Agglutination judgment method
Method and apparatus for transmitting and receiving extension information of component carrier in wireless communication system
System and method of creating and providing SMS http tagging
  Randomly Featured Patents
Dipole antenna element
Human pathogenesis-related protein
Integrated cardioplegia delivery system
Process for the separation of gaseous mixtures by adsorption with pressure variation
Method of fabricating a semiconductor device having a multilayer wiring structure and using a fluorine compound-containing gas
Inductive sensor for target parameter detection and magnetic image feature determination
Loading quantum dots into thermo-responsive microgels by reversible transfer from organic solvents to water
Dual-polarized cross-correlating radiometer and method and apparatus for calibrating same
Separator for a fuel cell
Methods and equipment for machining electrodes