US PATENT SUBCLASS 369 / 159
.~.~.~.~ Having plural acoustical paths

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}
158  DF  .~.~.~ Acoustical tone arm {1}
159.~.~.~.~ Having plural acoustical paths

DEFINITION

Classification: 369/159

Having plural acoustical paths:

(under subclass 158) Subject matter in which the acoustical coupling structure includes a plurality of acoustical energy conducting passages through which such energy may travel simultaneously.

(1) Note. Such structure may include two acoustical conduits driven in a mechanical push-pull relationship by a

single stylus.