Abstract: Method and apparatus are provided for authenticating a user. The method includes detecting a path of a finger movement of the user across a sensing surface, collecting a plurality of fingerprint images of the finger along the path of the finger movement, collecting a plurality of time stamps corresponding to the plurality of fingerprint images at different locations along the path, comparing the path of the finger movement to a previously enrolled path of finger movement using the plurality of fingerprint images and the plurality of time stamps corresponding to the plurality of fingerprint images collected, and authenticating the user based on the comparison.

Abstract: Methods and apparatuses are provided for reducing fingerprint image distortion. In one embodiment, a fingerprint sensing apparatus comprises an image sensor configured to capture a fingerprint image from a reflected light of the fingerprint, and a mirror and a lens in the light path between the prism and the image sensor to direct the reflected light of the fingerprint image from the prism to the image sensor. The image sensor is configured to provide an image plane, the prism and the mirror are configured to provide a subject plane, where the subject plane is adjusted based on a light path from a prism to the image sensor, and the image plane and the subject plane are extended and are configured to form an intersection, and the lens is adjusted to provide a lens plane that meets the intersection of the image plane and the subject plane.

Abstract: Interactive multiple fingerprint enrollment in the field of fingerprint detection and authentication is disclosed. The enrollment apparatus is configured to perform the following procedures: instruct a user to present a randomly selected set of multiple fingers on a sensing surface of the enrollment apparatus interactively, capture a fingerprint image of the multiple fingers on the sensing surface simultaneously, identify boundaries of the multiple fingers by scanning from edges of the sensing surface of the enrollment apparatus, segment the fingerprint image into a plurality of individual fingerprint images based on the identified boundaries, and store the individual fingerprint images.

Abstract: Methods and apparatuses are provided for a fingerprint sensing apparatus. In one embodiment, a fingerprint sensing apparatus comprises a light source configured to produce an emitted light to illuminate a fingerprint of a user, a light modifier configured to illuminate the fingerprint with a substantially uniform light intensity using the emitted light from the light source, where the light modifier includes a curved surface configured to produce a diffused and reflected light based on the emitted light from the light source, a prism configured to direct a reflected light of the fingerprint illuminated by the diffused and reflected light from the light modifier, an image sensor configured to capture a fingerprint image from the reflected light of the fingerprint, and a housing configured to hold the light source, the light modifier, the prism, and the image sensor within the housing.

Abstract: Method and apparatus are provided for a fingerprint enrollment. In one embodiment, a method for enrolling a fingerprint image may include instructing, by a controller, a user to roll a finger across a sensing surface of a fingerprint enrollment apparatus, capturing, by an image sensor, a current fingerprint image of the finger, capturing, by the image sensor, a next fingerprint image as the finger rolls across the sensing surface of the fingerprint enrollment apparatus, where the next fingerprint image is contiguous to the current fingerprint image, stitching, by the controller, the next fingerprint image to the current fingerprint image to form a stitched fingerprint image, determining, by the controller, whether the stitched fingerprint image meets fingerprint enrollment criteria, and storing, in a memory, the stitched fingerprint image in response to the stitched fingerprint image meeting the fingerprint enrollment criteria.

Abstract: The present disclosure relates to simultaneous multiple fingerprint enrollment in the field of fingerprint detection and authentication. The enrollment apparatus is configured to perform the following procedures: instruct a user to present a randomly selected set of multiple fingers on a sensing surface of the enrollment apparatus interactively, capture a fingerprint image of the multiple fingers on the sensing surface simultaneously, identify boundaries of the multiple fingers by scanning from edges of the sensing surface of the enrollment apparatus, segment the fingerprint image into a plurality of individual fingerprint images based on the identified boundaries, and store the individual fingerprint images.

Abstract: Method and apparatus are provided for detecting hovering commands by a device with a display. In one embodiment, a method for detecting hovering commands by a device with a display comprises detecting a sequence of shadows from a hovering object by one or more light sensors of the device, where the sequence of shadows causes changes in light conditions on the display of the device, determining a leakage current corresponding to changes of light conditions by a controller of the device, determining an action performed by a user based on the changes of light conditions on the display by the controller of the device, determining a hovering command based on the action performed by the controller of the device, and executing the hovering command by the controller of the device.

Abstract: Methods and apparatuses are provided for a multi-mode display. In one embodiment, a multi-mode display comprises an array of light sensing and emitting units (LSEUs), a decoder configured to generate addresses for accessing one or more LSEUs in the array of LSEUs, and a controller configured to control the array of LSEUs using the addresses, where each LSEU in the array of LSEUs comprises a light sensing and emitting component (LSEC), an emitting circuit configured to generate light using the LSEC, and a sensing circuit configured to detect light using the LSEC.

Abstract: Methods and apparatuses are provided for user authentication using a device with a touch screen display. In one embodiment, a method of user authentication using a device with a touch screen display includes providing a user defined area to unlock the device, detecting a leakage current corresponding to changes of light conditions on the user defined area by one or more light sensors of the touch screen display, capturing one or more fingerprints or a palm print of the user based on the changes of light conditions in the user defined area by the one or more light sensors of the touch screen display, authenticating the one or more fingerprints or the palm print of the user, and providing access to the device in response to a positive authentication of the one or more fingerprints or the palm print of the user.

Abstract: Methods and systems are provided for a multi-level command sensing apparatus that includes a matrix of light sensors and light sources and that may also serve as the display. In one embodiment, a method for performing multi-level command sensing by a multi-level command sensing apparatus comprises detecting a leakage current corresponding to changes of light conditions on a display by one or more light sensors of the multi-level command sensing apparatus, determining an action performed by a user based on the changes of light conditions on the display by a controller of the multi-level command sensing apparatus, determining a command based on the action performed by the controller of the multi-level command sensing apparatus, and executing the command by the controller of the multi-level command sensing apparatus.

Abstract: Methods and Apparatus are provided for fake fingerprint detection. In one embodiment, an apparatus for determining validity of a fingerprint includes a prism having an imaging surface configured to be touched by a fingerprint, one or more light sources configured to produce an image based on a refractive index of a material presented in association with the fingerprint, one or more imaging sensors configured to capture the image, and a controller configured to determine validity of the fingerprint based on whether the image has been masked.

Abstract: Methods and Apparatuses are provided for a thin high contrast optical acquisition system for fingerprint recognition. In one embodiment, a method of capturing images of a fingerprint may include emitting light from a set of light sources to generate a scattered light from the fingerprint, determining a set of sensor arrays located between an inner boundary and an outer boundary from the set of light sources based on thickness and refractive index of one or more panels between the set of light sources and the fingerprint, activating the set of sensor arrays to capture the scattered light from the fingerprint, and processing the scattered light captured by the set of sensor arrays in parallel to generate a topography of the fingerprint.

Abstract: Methods and Apparatuses are provided for a thin high contrast optical acquisition system for fingerprint recognition. In one embodiment, an apparatus for determining validity of a fingerprint includes a light refracting device (light refractor), a light source, a light collecting device, and a controller. The light refracting device can, for example, be a TFT light panel structure or an active matrix organic light emitting diode (AMOLED) panel structure with reverse current measurement and amplification circuitry, and includes an imaging surface and a viewing plane. Incident light from the light source is projected directly or indirectly onto the imaging surface to create an image of the patterned object from the projected light onto the viewing plane. The apparatus is configured to have a thin form factor, which may be flexible or conformable, compared to conventional optical fingerprint acquisition apparatuses.

Abstract: Methods and Apparatus are provided for fake fingerprint detection. In one embodiment, an apparatus for determining validity of a fingerprint includes a prism having an imaging surface configured to be touched by a fingerprint, one or more light sources configured to produce an image based on a refractive index of a material presented in association with the fingerprint, one or more imaging sensors configured to capture the image, and a controller configured to determine validity of the fingerprint based on whether the image has been masked.

Abstract: Methods and Apparatus are provided for fake fingerprint detection. In one embodiment, an apparatus for fake fingerprint detection includes a prism having a first side configured to be touched by a fingerprint, an IR LED located near the second side of the prism, a light source located near the third side of the prism, where both the IR LED and the light source are configured to illuminate the fingerprint simultaneously to produce a captured image of the fingerprint, one or more lenses configured to direct the captured image of the fingerprint for storage, one or more CMOS sensors configured to collect the captured image of the fingerprint for analysis, and a controller configured to determine validity of the fingerprint using the captured image.

Abstract: This invention relates to a user authenticating system and a method using aone-time fingerprint template. The system and the method according to the invention are improvements of the conventional user authentication based on the manner of comparing the fingerprint feature data only, for the purpose of preventing a false authentication by misusing fingerprint feature data, if exposed in the course of transfer thereof. In the system and the method according to the invention, fingerprint feature data of a user are combined with an OTT key transferred from a server. The combined result is encoded and transferred to an authenticating server. The authenticating server then confirms validity of the OTT key and authenticates the user based on the fingerprint. Thus, the present invention has an advantage of preventing a false authentication through hacking, etc., even if the OTT key is exposed to a network, because the OTT key is used only once for authentication.

Abstract: The disclosed invention herein is a method for extracting fingerprint feature data using a ridge orientation model. The fingerprint feature data extracting method includes the steps of inputting a fingerprint image, extracting ridge orientations according to regions, calculating ridge qualities according to regions and separating background region from the fingerprint image, extracting regions having a core and a delta, setting an initial ridge orientation model, calculating a ridge orientation function, and extracting the ridge orientations and the core and delta positions of the fingerprint image.

Abstract: Disclosed is an apparatus for forming a high contrast image of a patterned object, such as a fingerprint, including a first lens having a light receiving surface and a viewing surface and a second lens adjacent to the viewing surface of the first lens. A light source projects incident light into the first lens between the viewing surface and imaging surface such that at least a portion of the incident light undergoes total internal reflection. In this way, an image of the patterned object is generated by substantially all scattered light from the imaging surface.

Abstract: An apparatus and method for acquiring an image of a patterned object such as a fingerprint including a light refracting device, a focusing lens, a light source, and a biometric circuit for detecting the presence of a patterned object such as a fingerprint at the light refracting device. Incident light from the light source is projected through a light receiving surface of the light refracting device and is directly reflected off an imaging surface. The resulting image is projected through the focusing lens. The focusing lens has a diameter which is larger than the projection of the patterned object through the light refracting device.

Abstract: Disclosed is an optical fingerprint acquisition apparatus capable of reducing an image distortion and a size of an optical system by deforming the shape of a prism. The prism according to the invention includes a fingerprint contacting surface to be touched by a fingerprint of a person, a totally reflecting surface facing the fingerprint contacting surface with an angle &thgr; for totally and inwardly reflecting the light scattered from the fingerprint in contact with the fingerprint contacting surface, a primarily projecting/re-incident surface linking the fingerprint contacting surface to the totally reflecting surface with an angle &phgr; for primarily projecting the light totally reflected from the totally reflecting surface so as to be re-incident from outside, and an ultimately projecting surface facing the primarily projecting/re-incident surface for ultimately projecting the light re-incident to the primarily projecting/re-incident surface toward outside.