US PATENT SUBCLASS 367 / 60
.~.~.~.~ Special digital system

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

14  DF  SEISMIC PROSPECTING {4}
37  DF  .~ Land-reflection type {6}
38  DF  .~.~ Signal analysis and/or correction {15}
59  DF  .~.~.~ Compositing system {4}
60.~.~.~.~ Special digital system

DEFINITION

Classification: 367/60

Special digital system:

(under subclass 59) Subject matter wherein signals are in digital form and are composited by digital processing means other than a general digital computer.

(1) Note. A compositing process intended to be performed under control of a program in a general purpose digital computer does not constitute a basis for classification in this subclass.

SEE OR SEARCH CLASS

364, Electrical Computers and Data Processing Systems,

421, for seismic signal compositing processes carried out by general purpose digital computers.