Fingerprint identification device equipped with a user recording unit
AssigneeOMRON Corporation
InventorsHirotaka Ishii, Takeo Morita, Yasuhide Yomo
Life of this patent
Estimating the term…
Abstract
A fingerprint identification device to identify fingerprints is equipped with a fingerprint reader unit to input a fingerprint to be detected and a database unit to record a fingerprint database which is provided in advance. A fingerprint comparing unit identifies the input fingerprint via the fingerprint reader unit by comparing with the fingerprint database recorded in the database unit and a user recording unit records the input fingerprint input by the fingerprint reader unit.
Claims9
A fingerprint identification device to identify fingerprints, comprising:
- a fingerprint reader unit to read a fingerprint to be detected for outputting a fingerprint data;
- an image data processing unit to correct or compress said fingerprint data received from said fingerprint reader;
- a feature extraction unit to extract image features out of said corrected or compressed input fingerprint data received from said image data processing unit;
- a database unit to record a fingerprint database provided in advance;
- a fingerprint comparing unit that identifies said extracted image features received from said feature extraction unit by comparing with fingerprint data stored in said fingerprint database recorded in said database unit;
- a temporary recording unit to temporally record a temporary fingerprint data of said fingerprint;
- and
- a user recording unit to record said temporary fingerprint data transmitted from said temporary recording unit,
- wherein said temporary fingerprint data to be recorded in said temporary recording unit is said fingerprint data received from said fingerprint reader unit, and said temporary recording unit ignores said temporary fingerprint data in said temporary recording unit when said fingerprint comparing unit identifies said fingerprint, and further, said temporary recording unit automatically sends said temporary fingerprint data to said user recording unit for storing said temporary fingerprint data only when said fingerprint comparing unit does not identify said fingerprint, wherein said temporary fingerprint data enables narrowing down a location of malfunction in said fingerprint identification device.
A method of identifying and recording fingerprints, comprising the steps of:
- recording reference fingerprints in advance in a database;
- inputting a fingerprint to be detected;
- processing said input fingerprint by correcting or compressing said input fingerprint;
- extracting image features out of said corrected or compressed input fingerprint;
- comparing said extracted image features to be detected to the reference fingerprints in the database;
- temporally recording a temporary fingerprint data which is either a raw fingerprint data, corrected or compressed fingerprint data, or said extracted image features;
- and
- automatically recording said temporary fingerprint data in a permanent user recording unit only when the input fingerprint to be detected does not match any of the reference fingerprints in the database wherein said temporary fingerprint data enables narrowing down a location of malfunction in said steps of said fingerprint identifying and recording method.
Dependencies are inferred from the claim text.