The patent application concerns a system for determining intoxication levels by testing a subject's visual and mental alertness and physical coordination. The system includes an array of switches each having an actuator surface of a given configuration and size and a display control for sequentially identifying individual switches in a random sequence. A test subject is required within a present time interval to activate each identified switch with a stylus having an operator surface corresponding in shape to the actuator surfaces. A detector system measures the test subject's ability to activate each identified switch by properly aligning the actuator surfaces thereof with the operator surface of the stylus.

  • Supplemental Notes:
    • This Government-owned invention available for U.S. licensing and, possibly, for foreign licensing. Copy of application available NTIS.
  • Corporate Authors:

    Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Iannini, A A
  • Publication Date: 1976-8-12

Media Info

  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00143333
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: PAT-APPL-713 906 Pat Appl
  • Files: TRIS, USDOT
  • Created Date: Nov 17 1977 12:00AM