3360results about "Print image acquisition" patented technology

A fingerprint-reading system includes a fingerprint sensor having an active surface sensitive to the pressure and temperature of a finger. The surface area of this sensor is far smaller than the surface area of the fingerprint to be read. The reading is done when the sensor and the finger are in contact and in a relative motion of sliding of the sensor and the finger with respect to each other. The system reconstitutes a complete image of the fingerprint from the partial images given by the sensor during this motion.

This invention is directed to an electronic device with an embedded authentication system for restricting access to device resources. The authentication system may include one or more sensors operative to detect biometric information of a user. The sensors may be positioned in the device such that the sensors may detect appropriate biometric information as the user operates the device, without requiring the user to perform a step for providing the biometric information (e.g., embedding a fingerprint sensor in an input mechanism instead of providing a fingerprint sensor in a separate part of the device housing). In some embodiments, the authentication system may be operative to detect a visual or temporal pattern of inputs to authenticate a user. In response to authenticating, a user may access restricted files, applications (e.g., applications purchased by the user), or settings (e.g., application settings such as contacts or saved game profile).

This invention is directed to an electronic device with an embedded authentication system for restricting access to device resources. The authentication system may include one or more sensors operative to detect biometric information of a user. The sensors may be positioned in the device such that the sensors may detect appropriate biometric information as the user operates the device, without requiring the user to perform a step for providing the biometric information (e.g., embedding a fingerprint sensor in an input mechanism instead of providing a fingerprint sensor in a separate part of the device housing). In some embodiments, the authentication system may be operative to detect a visual or temporal pattern of inputs to authenticate a user. In response to authenticating, a user may access restricted files, applications (e.g., applications purchased by the user), or settings (e.g., application settings such as contacts or saved game profile).

The present invention is directed toward a device for biometric authentication. The device comprises an infra red signal transmitter, signal receiver, memory module, and processing module. The signal transmitter transmits infrared energy toward a user. The infrared energy is partly absorbed and partly reflected by the user's body. The infra red signal receiver collects partly reflected infrared energy. The memory module stores the data, and the processing module processes and compares the reflected infrared energy and stored data for use in biometric authentication.

This disclosure provides apparatus, systems and methods of fabricating force-sensitive switches. In some implementations, an array of force-sensitive switches and local capacitors of a combined sensor device may be used to connect the local capacitor into associated projected capacitive touch (PCT) detection circuitry. In some implementations, each capacitor may be formed with a thin dielectric layer to achieve a high capacitance increase when the force-sensitive switch is closed, e.g., by the pressing of a stylus or finger. In some implementations, the same PCT detection circuitry can be used to detect changes in mutual capacitance when touched with a finger (touch mode) and changes in sensel capacitance when the force-sensitive switch is depressed (stylus or fingerprint mode).

Enhanced accuracy finger position and motion sensors devices, algorithms, and methods are disclosed that can be used in a variety of different applications. The sensors can be used in conjunction with partial fingerprint imagers to produce improved fingerprint scanners. Such improved scanners can use image analysis techniques, such as interpolation between partial fingerprint images to correct for missing data, or discarding redundant partial fingerprint image data, to produce adequate fingerprint images even when the finger has not been applied to the sensor using an optimum technique.

A fingerprint sensing system includes an image sensor, a rate sensor and a sensor circuit. The image sensor includes a linear array of capacitive sensors for capacitive sensing of ridge peaks and ridge valleys of a fingerprint on a swiped finger. The rate sensor senses the speed of the finger as it is swiped across the image sensor. The sensor circuit supplies image drive signals to the image sensor and detects image signals in response to the drive signals. The sensor circuit supplies rate drive signals to the rate sensor and detects rate signals in response to the rate drive signals. The sensor circuit further coordinates the image signals and the rate signals to provide a fingerprint image. The image sensor may be configured as an image pickup plate and multiple image drive plates formed on a substrate, such as a flexible printed circuit board or other flexible substrate which may conform to the shape of the finger.

Various structures and methods are disclosed for packaging a biometric sensor, such as a capacitive biometric sensor. Embodiments incorporate various placements of the biometric sensor, structure surrounding a biometric sensor, connection structures (electrical, physical, or both), and techniques for enhanced sensor imaging, sensor retention, and guiding a user's finger to a proper location above a biometric sensor. For example, A biometric sensor assembly can include an aperture formed in a trim with a cap disposed in the aperture. A biometric sensor may be positioned below the cap and a switch positioned below the biometric sensor.

A biometric sensor panel includes (a) a first flexible substrate, (b) a plurality of first electrodes formed on the first flexible substrate, the first electrodes being arranged in a first direction, (c) a semiconductor layer formed on the first electrodes, (d) a second flexible substrate, (e) a plurality of second electrodes formed on the second flexible substrate, the second electrodes being arranged in a second direction crossing the first direction, and (f) a pressure sensitive conductive layer formed on the second electrodes, wherein the first and second flexible substrates face each other such that the semiconductor layer is in contact with the pressure sensitive conductive layer.

A transaction terminal includes a housing, a touch screen, a card reader, an imaging module, and a decode circuit coupled to the imaging module. The imaging module in one embodiment is disposed in the housing so that an imaging axis extends rearward of the housing. In a typical use of the terminal a store clerk can easily move objects into a field of view of the terminal. The transaction terminal can be coupled to a POS network which remotely sends a trigger signal actuating the imaging module when an age-proof-require product is being purchased.

A finger sensor may include pixels, pixel sensing traces each associated with a respective pixel, and electrodes overlying the pixel sensing traces. The finger sensor may also include pixel sensing circuitry coupled to the pixel sensing traces and the electrodes. The pixel sensing circuitry may be capable of operating in a measurement mode by operating the pixels so that at least some of the pixels are active, and at least some other of the pixels are inactive and coupling pixel sensing traces associated with the inactive pixels to a voltage reference. The pixel sensing circuitry may also be capable of operating in the measurement mode by coupling electrodes associated with the active pixels to the voltage reference and coupling electrodes associated with the inactive pixels to a drive signal.

Devices and optical sensor modules are provided for provide on-screen optical sensing of fingerprints by using an under-screen optical sensor module that captures and detects returned light that is emitted by the display screen for displaying images and that is reflected back by the top surface of the screen assembly.

A personal identification device and method prevent the reduction in the finger vein recognition rate which otherwise occur due to erroneous insertion of a finger by a user not accustomed to operation or insertion of a false finger at low cost. The device includes an imager picking up an image of a finger vein pattern, a light source emitting light adapted to be transmitted through the finger, an image operating unit matches the image, guides indicating the position of picking up the finger image, a detector detecting the contact between the finger and the guides, another light source radiating light reflected from the thick of the finger, a switch which is depressed by the forward end of the finger, a further light source emitting light transmitted through the forward end of the finger, and a light-sensor receiving the light from the further light source through the finger.

A sensor for detecting fingerprints is provided having first and second substrates, a two-dimensional array of sensing elements formed on the first substrate, and a plurality of thin-film transistors or TFTs for controlling the sensing elements at pixel location along the array. Each of the sensing elements detects one of electrical signals (e.g., capacitance, resistance, or impedance), temperature, or light via one of the first or second substrates representative of one or more fingerprints. The top of the second substrate or the bottom of the first substrate may provide a platen upon which one or more fingers can be disposed. The sensor may be utilized in a fingerprint scanner having one or more processors driving sensing elements or reading from sensing elements analog signals representative of one or more fingerprints, and generating an image representative of the one or more fingerprints from the analog signals.

System for providing an open-cavity semiconductor package. The system includes a method for wire bonding a finger sensor die to an external circuit. The finger sensor die includes a sensor array having one or more die contacts that are wire bonded to one or more external contacts of the external circuit so that a usable portion of the sensor array is maximized. The method comprises steps of forming a ball at a first end of a bonding wire, forming an electrically conductive connection between the ball and a selected external contact of the external circuit, extending the bonding wire to a selected die contact so as to form a wire loop having a low loop height, and forming an electrically conductive stitch connection between a second end of the bonding wire and the selected die contact.

The present invention relates to a fingerprint sensor element, comprising a sensor electrode (11) formed in an upper conducting layer (M3), a lower electrode (17, 32) formed in a lower conducting layer (M2, P2) and at least one insulating layer (8, 9, 10, 22) between the upper conducting layer (M3) and the lower conducting layer (M2, P2). It further comprises a charge amplifier (13) having a negative (12) and a positive (14) input terminal and an output terminal (18). An upper side (11a) of the fingerprint sensor electrode (11) is arranged for facing a finger (5) and a lower side (11b) is arranged for facing the lower electrode (17), and the fingerprint sensor electrode (11) and the lower electrode (17) are arranged in such a way that a capacitance (C_ref) is formed between them. The sensor electrode (11) is arranged for being connected to the negative input terminal (12) of the charge amplifier (13), and the lower electrode (17) is arranged for being connected to the output terminal (18) of the charge amplifier (13).

A sweep-type fingerprint sensor module includes a microprocessor and a sweep-type fingerprint sensor, which includes a substrate, and a sensing members array, a speed-detecting unit, and a processing circuit on the substrate. The array is composed of plural fingerprint sensing members. When the finger sweeps across the fingerprint sensor, the array sequentially acquires plural fingerprint fragment images from the finger with a sampling time interval. The speed-detecting unit is composed of first and second plate electrodes. The processing circuit processes and then outputs signals from the array and the speed-detecting unit. The microprocessor electrically connected to the processing circuit derives a sweeping speed of the finger by the time difference when the finger sweeps across the sensor surface and sequentially contacts the first and second plate electrodes, determines the sampling time interval and minimize the number of captured fragment images for re-construction of the initial complete fingerprint image.

A biometric scanner is described and claimed. The scanner has a platen, an ultrasonic plane wave generator, an ultrasonic detector, and a delay layer residing between the generator and the detector.

The embodiment of the invention discloses an array substrate, a driving method of the array substrate and a display device, and relates to the field of displaying. A fingerprint identification module can be arranged inside a display area, so that the purpose of simplifying operations and a manufacturing process is achieved. The array substrate comprises a substrate body, grid lines, data lines and pixel units defined by the grid lines and the data lines, the substrate body is also provided with a plurality of fingerprint identification circuits used for carrying out fingerprint identification, and the fingerprint identification circuits are arranged inside the pixel units.

It is an object to provide an user identity authentication system and an user identity authentication method with the Internet and a mobile information communication device. The mobile information communication device includes a liquid crystal device with a built-in image sensor. The image sensor reads individual information of a user, and user's identity is authenticated based on the individual information. A result of the authentication is unicast via the Internet. Alternatively, it is judged whether or not the result of the authentication is required to be unicast in accordance with a degree of requirement preset in the mobile information communication device or a destination terminal of communication, and the result is unicast via the Internet only when needed.

A method of creating a friction-ridge image is disclosed. An energy transducer is aimed at a body part having skin. The transducer is used to obtain information about the papillae beneath an outer surface of the skin. The information about the papillae is used to obtain information about valleys between the papillae, and a friction-ridge image having friction-ridge valleys that correspond with the valleys between the papillae is created.

The embodiment of the invention provides an optical fingerprint identification device and a display panel, relating to the technical field of fingerprint identification. The device and the display panel are used for improving the accuracy of identified fingerprint information in the process of optical fingerprint identification. The device comprises a light emitting structure, a collimating structure, and a plurality of photosensitive sensors. The light emitting structure is used for generating detection light. The collimating structure is used for filtering the detection light reflected by a finger such that a light whose scattering angle in a preset range penetrates the collimating structure. The photosensitive sensors are used for receiving light which penetrates the collimating structure and obtaining the fingerprint information according to received light. The embodiment of the present invention is used for manufacturing the display panel.

The present invention enables permanent biometric authentication without the risk of forgery or the like. The present invention enables living-tissue discrimination as well as biometric authentication. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Then, biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. In this case, long-wavelength light, e.g., near-infrared light is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. In this case, the living-tissue discrimination may be made using the subcutaneous blood vessel.

The method for identity verification employs biometric technology. Positioned at the center of the system is a stylus with any of a number of biometric properties or their combination or with one or more metric sensors, while the customer uses the stylus to sign his/her name, or even for writing anything. The identity verification system is used at point-of-sale terminals, in various closed environments, to access a computer network, in applications involving pen-based computers and smart-pens, and for e-commerce. When fingerprint sensors are used, the sensors are positioned in the stylus grip, one sensor for the index finger, and a second sensor for the thumb. In one variation, one-to-one biometric matching is used. Each participant carries on his/her person a device that includes an encrypted biometric for reference purposes to gain access Into the system. Processing is simplified since the system need only make a “MATCH” or “NO MATCH” decision. In a second variation that is particularly useful in closed environments, one-to-many biometric matching is used. During each event access request, the community of reference prints is searched for a match with the applicant. Each member of the community need carry nothing on his/her person to participate in the system. In either variation, the stylus is either attached to each site or is portable, one such stylus being carried by each participant.

An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.

A capacitance detecting circuit of a capacitive sensor having a plurality of column lines and a row line intersecting the column lines detects a change in capacitance at an intersection of a column line and a row line. The circuit includes a PN code generating unit for generating a code having orthogonality in time sequence to output the generated code as a column drive signal, a column line drive unit for driving a predetermined one of the column lines which are selected in response to the code, a capacitance detecting unit, connected to the row line, for detecting a voltage by converting a total sum of changes in capacitance at intersections of the selected column lines into the voltage to output the detected voltage, and a decode processing unit for performing a predetermined calculation on the detected voltage output from the capacitance detecting unit and the code to determine a voltage value responsive to the capacitance change at the intersection.

It will be understood by those skilled in the art that there is disclosed in the present application a biometric sensor that may comprise a plurality of a first type of signal traces formed on a first surface of a first layer of a multi-layer laminate package; at least one trace of a second type, formed on a second surface of the first layer or on a first surface of a second layer of the multi-layer laminate package; and connection vias in at least the first layer electrically connecting the signal traces of the first type or the signal traces of the second type to respective circuitry of the respective first or second type contained in an integrated circuit physically and electrically connected to one of the first layer, the second layer or a third layer of the multilayer laminate package.

A liquid crystal display device having fingerprint identification device for enhancing aperture ratio and transmissivity of a TFT-LCD panel is disclosed. A fingerprint identification substrate (400) is attached to a TFT substrate (300). The TFI substrate has color-filter-on-array structure in which the color filters (336) and the thin film transistors can be eliminated, the aperture ratio is increased, and the quality of image display is enhanced. In addition, the transmissivity is increased according to the decrease of the number of glass substrate used in the liquid crystal display device, so that the sensitivity of fingerprint identification is enhanced.

A flexible fingerprint sensor laminate comprising: a layer of flexible substrate having a front surface and a back surface, at least a domain of electrically conductive material deposited on the front surface, a protective hard coating layer that covers the domain of electrically conductive material, and a plurality of sensor electrodes deposited preferably on the back surface and related circuitry (e.g. integrated circuit for driving and sensing). Preferably, the layer of flexible substrate is no greater than 20 μm in thickness, the domain of electrically conductive material has a thickness no greater than 2 μm, the protective hard coating has a thickness no greater than 1 μm, and the laminate has a surface sheet resistance no greater than 200 Ohm per square and surface scratch resistance no less than 3 H. The laminate exhibits good scratch resistance, low sheet resistance, good flexibility and mechanical integrity. The invention also provides a biometric sensor, such as a fingerprint sensor. The invention further provides a process for producing such a sensor laminate.

The invention discloses a line recognition and display device. The device comprises an array substrate, a line bearing plate opposite to the array substrate, light-sensing units, condensing lenses and shading parts, wherein the light-sensing units in at least part of pixel areas are located on the array substrate, the condensing lenses correspond to the light-sensing unit one to one and are located at the sides, facing the line bearing plate, of the light-sensing units, and the shading parts correspond to the condensing lenses one to one and are located between the condensing lenses and the corresponding light-sensing units. When a finger or palm makes contact with the line bearing plate, light which is reflected by the finger or palm and irradiated to the condensing lenses is gathered in the main optical axis direction by means of the condensing lenses, but only part of light meeting specific conditions can irradiate to the light-sensing units because of light-pervious holes, and accordingly the light-sensing units only collect light in the specific transmission direction. Thus, no matter how far the light-sensing units are from the upper surface of the line bearing plate, optical crosstalk can be reduced.