Visual divided attention alcohol safety interlock system

• US 3,918,176 A
• Filed: 05/22/1974
• Issued: 11/11/1975
• Est. Priority Date: 05/22/1974
• Status: Expired due to Term

• Current Assignee: Americo A. Iannini, Charles N. Abernethy III
• Original Assignee: Americo A. Iannini, Charles N. Abernethy III
• Inventors: Abernethy, Charles N. III, Iannini, Americo A.
• Primary Examiner(s): Grieb, Wm. H.
• Application Number:
  US05/472,166
• Time in Patent Office: 538 Days
• Field of Search: 35/22R,11,12D 128/2N 180/99 340/52,53,279
• US Class Current: 434/258
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/18 for vehicle drivers or machine operators
• CPC Class Codes: B60K 28/063 preventing starting of vehicles

Abstract

Disclosed herein is an intoxication testing system including means for simultaneously producing a pair of varying displays visible to a person under test who selectively operates corresponding actuators to produce responses dependent upon his reaction to the displays. Analyzers compare the selected responses with predetermined proper responses and an evaluation system measures and records the level to which the responses deviate from the predetermined proper responses.

Claims

1. A divided attention intoxication testing apparatus comprising:

first pursuit tracking display means for providing a first randomly varying display visible to a person being tested;

first actuator means selectively operable by the person to produce first selected responses;

first comparison means for comparing said first varying display with said first responses;

second peripheral visual field display means for providing a second randomly varying display visible to the person viewing said first display;

second actuator means different from said first actuator means and selectively operable by the person to produce second responses;

second comparison means different from said first comparison means for comparing said second display with said second responses; and

evaluation means for evaluating the comparisons made by said first and second comparison means.

2. Apparatus according to claim 1 wherein said second display means comprises random generator means responsive to said second actuator means for randomly varying said second display.

3. Apparatus according to claim 1 wherein said second display means comprises a plurality of lights and energizing means for selectively energizing individual ones of said plurality of lights.

4. Apparatus according to claim 3 wherein said energizing means comprises random generator means for energizing said plurality of lights in a random sequence and for randomly varying the energization period of said energized lights.

5. Apparatus according to claim 4 wherein said energizing means further comprises control means rendering said random generator means responsive to said second actuator means.

6. Apparatus according to claim 5 wherein said second actuator means comprises a plurality of actuators each associated with a distinct set of said plurality of lights.

7. Apparatus according to claim 6 wherein each of said plurality of actuators comprises an electrical switch disposed adjacent to said set of lights with which it is associated.

8. Apparatus according to claim 7 wherein said first display means comprises a screen, a target indicator movable on said screen, target control means for moving said target indicator on said screen, and a tracking indicator movable on said screen in response to operation of said first actuator.

9. Apparatus according to claim 8 wherein said light sets comprise a pair of light arrays that straddle said screen.

10. Apparatus according to claim 9 wherein said first actuator is a rotatable wheel and said elecTrical switches are mounted on diametrically opposed positions thereon.