Method of Searching for Information in a Database

• US 20070299876A1
• Filed: 12/13/2005
• Published: 12/27/2007
• Est. Priority Date: 12/13/2004
• Status: Active Grant

• Current Assignee: IDEMIA Identity and Security France SAS (Advent International Corporation)
• Original Assignee: Morpho (Advent International Corporation)
• Inventors: Welti, Paul, Fondeur, Jean-Christophe
• Granted Patent: US 8,095,522 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 3/103 for determining refraction, e.g. refractometers, skiascopes
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• 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 5/165 Evaluating the state of mind, e.g. depression, anxiety

Abstract

The present invention relates to a method of searching for information in a database, the method comprising the steps of: presenting at least one item of data to an observer and measuring at least physiological parameter of the observer; and in the presence of a variation in the physiological parameter greater than a predetermined threshold, presenting an item of data having a relationship with the previously-presented data item.

Claims

1. A method of searching for information in a database, the method comprising the steps of:

presenting at least one item of data to an observer and measuring at least physiological parameter of the observer; and

in the presence of a variation in the physiological parameter greater than a predetermined threshold, presenting an item of data having a relationship with the previously-presented data item.

2. A method according to claim 1, the method including a prior calibration step in which the physiological parameter is measured in order to determine a nominal level thereof.

3. A method according to claim 1, wherein for data items in the form of images, the method includes a step of detecting on an image at least one portion of interest to the observer, the relationship existing between the previously-presented image and the image presented after detecting a variation in the physiological parameter relating to said portion of interest.

4. A method according to claim 3, wherein the portion of interest is detected by measuring the length of time said portion is examined.

5. A method according to claim 3, wherein the portion of interest is detected by identifying a correlation between viewing said portion and the variation in the physiological parameter.

6. A method according to claim 3, wherein the images are presented in croups, and wherein the method includes a step of detecting the observer'"'"'s viewing direction while the images are being presented.

7. A method according to claim 1, the method including a step of scoring the information that triggered the variation in the physiological parameter, during which the information is given a score that takes account of the degree of the observer'"'"'s attention for the portrait and/or a characteristic of the variation in the physiological parameter.

8. A method according to claim 7, wherein the presentation of information is interrupted when the score is greater than a predetermined threshold.

9. A method according to claim 7, the method including a step of evaluating the reliability of the search by using at least one pre-established resemblance criterion to compare the items of information that have a score greater than a predetermined threshold.