International Automated Systems, Inc. v. Digital Persona, Inc.

565 F. Supp. 2d 1276, 2008 U.S. Dist. LEXIS 445, 2008 WL 53151
CourtDistrict Court, D. Utah
DecidedJanuary 2, 2008
Docket2:06-cv-72
StatusPublished
Cited by2 cases

This text of 565 F. Supp. 2d 1276 (International Automated Systems, Inc. v. Digital Persona, Inc.) is published on Counsel Stack Legal Research, covering District Court, D. Utah primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
International Automated Systems, Inc. v. Digital Persona, Inc., 565 F. Supp. 2d 1276, 2008 U.S. Dist. LEXIS 445, 2008 WL 53151 (D. Utah 2008).

Opinion

MEMORANDUM OPINION AND ORDER

DEE BENSON, District Judge.

This case concerns technology involving a fingerprint identification system. On January 24, 2006, Plaintiff International Automated Systems, the exclusive licensee of U.S. Patent No. 5,598,474 (the “'474 Patent” or the “Patent”), brought this patent infringement action against Defendant Digital Persona, Inc. and Defendant Microsoft Corporation. Before the Court are the parties’ briefs concerning construction of the claims contained in the '474 Patent, and two motions for summary judgment filed by the Defendants. On November 20, 2007, the Court held a Markman hearing and heard argument by the parties on claim construction as well as the motions for summary judgment.

I. Background

The '474 Patent, entitled “Process for Encrypting a Fingerprint onto an I.D. Card,” involves a fingerprint identification system. This invention is an apparatus that can read a body part such as a fingerprint, automatically identify it, and then store the information on a magnetic strip of less than 100 bytes contained on an ID card. Once it is stored the information can be read by the apparatus so that it is compared with an actual live fingerprint. An automatic check will be made to determine if there is a match.

The invention has the ability to identify a person who has the right to use an ID card — such as a credit card, debit card, driver’s license, or social security card— reducing the potential for credit card fraud and allowing for the admission (or exclusion) of persons into restricted areas. A fingerprint identification system has certain advantages over the current and widely used system using a “personal identification number” (“PIN”) number, where the user must remember the PIN or save it separately. Unlike a fingerprint identification system, there is a higher chance for fraud when PIN numbers or picture identifications are used. The '474 Patent seeks to reduce fraud and provide for an efficient system.

A brief summary of the fingerprint identification system follows. The first step involves a camera scanning or reading a fingerprint in order to produce an image. The image produced is then converted to a digital image and inputted to a computer. The computer has a program that is designed to examine and determine the quality of the read. If the computer program identifies areas of the image that are of poor quality, it enhances the image.

In plain terms, enhancement is completing an image by filling in gaps and producing a more accurate picture of the image. Enhancement involves an optical scanner scanning in several directions the valleys and ridges of the finger, and determining where there are gaps in the lines. The program can calculate where the missing or distorted ridges and valleys should be and where they should connect. The computer program does this by determining the length and patterns of the fingerprint lines. High points of each line are referenced by the high points found on other fines, subject to proper order, sequence, and angle. Islands — comprised of fines where both ends do not pass through the print’s image — are located in reference to other fines and coordinates of the fingerprint. As the program determines the pattern of the valleys and ridges of the fingerprint image, the image is in a sense “cleaned up.” Although a line may appear to be a fine end, the enhancement program *1283 has the ability to determine that the line end is actually a Y line, and thus the image is corrected. Similarly, a line may appear as two separate lines forming a gap in between the two, yet the program may determine that there is only one line forming no gap, and the image is corrected. This process of image enhancement is used to create a higher quality image and serves as a remedy for poor reads.

Without enhancement the computer program would have a difficult time identifying the lines accurately, and thus, would have difficulty finding a match. Prints without enhancement are difficult to match because of the number of places where a line is broken up. Ridges or valleys may be distorted or even lost. A poor read could produce many false lines, connections, and separations. Enhancing the image eliminates this problem. Enhancement is a critical part of the invention as it provides for a clear, accurate, and consistent read.

It is also noteworthy that the computer program performing enhancement can be programmed to locate specific unique identifying characteristics. For example, it may be programmed to look for ends of lines, specific types of lines, lines with a particular length, and lines with a certain curvature. Setting the program to identify certain types of unique identifying characteristics is a useful feature for security purposes. The degree of identification may vary depending on the level of security desired for that particular fingerprint identification.

Next, once the image is enhanced, the computer program identifies its unique identifying characteristics. Predetermined unique characteristics, such as ends of fingerprint ridges, fingerprint ridge bifurcations, length of fingerprint ridge lines, and fingerprint ridge curves, are identified and a code is given that represents the relative location for the minutia in comparison to other unique identifiable parts. This code is encrypted onto a magnetic strip of less than 100 bytes, which can be retrieved and used to duplicate the major characteristics of a fingerprint.

What makes this invention effective is its ability to compare the code stored on the magnetic strip with a live fingerprint read. After the code is encrypted onto the card and the person wishes to use the card, the card is placed into the card reader to bring back the stored information into the computer. The person then places his or her finger onto the fingerprint reader and the information from the live fingerprint is deciphered by the computer program. The program identifies certain coordinates and patterns from the information on the magnetic strip, and tries to locate those points and patterns on the live read. The program can manipulate the image by rotating it to get different angles and positions, and it will perform a certain number of tries until a match is found or is not found. Depending on the level of security desired, a certain tolerance of error will be allowed when comparing the codes. If the two codes match within the allowed tolerance of error, the program indicates a correct read. Likewise, if there is no match, the program indicates an incorrect read.

In sum, this invention is able to read a biological part such as a fingerprint, and take complex forms and designate unique biological characteristics codes. These codes can be encoded onto the magnetic strip of an ID card or credit card. A comparison can be made of the live biological part with the number on the card to identify whether the identities match. This system is designed to alleviate fraud and ensure that a card is being used by its owner.

*1284 II. Claim Construction

Claim construction is a matter of law. Markman v. Westview Instruments, Inc., 517 U.S. 370, 372, 116 S.Ct. 1384, 134 L.Ed.2d 577 (1996).

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Related

International Automated Systems, Inc. v. IBM
595 F. Supp. 2d 1197 (D. Utah, 2009)

Cite This Page — Counsel Stack

Bluebook (online)
565 F. Supp. 2d 1276, 2008 U.S. Dist. LEXIS 445, 2008 WL 53151, Counsel Stack Legal Research, https://law.counselstack.com/opinion/international-automated-systems-inc-v-digital-persona-inc-utd-2008.