US PATENT SUBCLASS 369 / 167
.~.~.~.~.~ With mechanical amplification (e.g., frictional coupling)

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

99  DF  SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM {4}
127  DF  .~ Mechanical modification or sensing of storage medium {6}
155  DF  .~.~ Mechanical conversion to or from sound {4}
160  DF  .~.~.~ Sound box {6}
165  DF  .~.~.~.~ Perpendicular mechanical modulation {3}
167.~.~.~.~.~ With mechanical amplification (e.g., frictional coupling)

DEFINITION

Classification: 369/167

With mechanical amplification (e.g., friction coupling):

(under subclass 165) Subject matter having structure to increase the amplitude of the mechanical vibrations of the elements coupling the stylus and acoustical resonator.

(1) Note. Such structure is often a frictional linkage to an auxiliary vibrating structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, for sound boxes having acoustical, rather than mechanical, amplification.