Apparatus for and method of spectral analysis enhancement of polygraph examinations

• US 4,887,607 A
• Filed: 03/16/1988
• Issued: 12/19/1989
• Est. Priority Date: 03/16/1988
• Status: Expired due to Fees

• Current Assignee: Robert F. Beatty
• Original Assignee: Robert F. Beatty
• Inventors: Beatty, Robert F.
• Primary Examiner(s): Hindenburg, Max
• Assistant Examiner(s): Getzow, Scott M.
• Application Number:
  US07/169,224
• Time in Patent Office: 643 Days
• Field of Search: 128/670, 128/671, 128/697, 128/693, 128/688, 128/716, 128/709
• US Class Current: 600/483
• CPC Class Codes: A61B 5/164 Lie detection
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods

Abstract

An apparatus for and method of improving polygraph testing comprises parallel processing of output response signals of a human being by a polygraph machine and a spectral analyzer and then comparing and contrasting the output results for more qualified interpretations.

Claims

1. A polygraph examination apparatus comprising in combination:

a polygraph machine including input leads adapted to be connected to the human body so that the specific human body functions of galvanic skin response, blood pressure, respiration, and pulse and their associated output signals can be monitored; and

a spectrum analyzer electronically connected in parallel with said polygraph machine such that the output signals of the human body functions being monitored on said polygraph machine are concurrently monitored on said spectrum analyzer.

2. The polygraph examination apparatus of claim 1 wherein the output of said spectrum analyzer are output to means for generating functional output plots.

3. The polygraph examination apparatus of claim 1 wherein said spectrum analyzer further comprises an access memory for storing said spectrum analyzer output.

4. A method of analyzing polygraph data which comprises:

splitting the signal output such as galvanic skin response, blood pressure, respiration and pulse, obtained from a human body so that a first portion of the identical said output goes to a polygraph machine and a second portion of the said output signal is conveyed in parallel to a spectrum analyzer;

recording said first portion of said output signal on a polygraph machine;

processing said second portion of said output signal through said spectrum analyzer;

outputting said spectrum analyzer results; and

comparing and contrasting said polygraph machine recordings with said spectrum analyzer results to make interpretations and decisions based on both outputs.