Abstract: A manufacturing method for an ultrasonic fingerprint sensor is provided. The method may include: preparing a sintered ceramic element under incomplete sintering conditions; forming a processed ceramic element by cutting a first surface of the sintered ceramic element along a first direction in pre-designated intervals up to such a depth that leaves a remainder region at a second surface and cutting the second surface of the sintered ceramic element along a second direction perpendicular to the first direction in pre-designated intervals up to such a depth that leaves a remainder region at the first surface; sintering the processed ceramic element under complete sintering conditions; filling an insulation material into troughs formed in the processed ceramic element by the cutting processes; and polishing the first surface and second surface to remove the remainder regions such that piezoelectric rods are exposed while arranged in an array form.

Abstract: The present invention relates to a method a biological information recognition apparatus and a method for activating, by the biological information recognition apparatus, a recognition row and a recognition column including a plurality of piezoelectric elements in various patterns. More specifically, the present invention relates to a biological information recognition apparatus which may be used to identify a user by recognizing biological information, such as the fingerprint, blood vessels, and bones of the user and a method for driving the same.

Abstract: The present invention relates to the lead-zirconate-titanate (PZT) amorphous alloy plating solution which may be used to form a PZT amorphous alloy film having excellent mechanical and physical properties and a method for plating a PZT amorphous alloy using the same. The PZT amorphous alloy plating solution may include a Pb precursor, a Zr precursor, and a Ti precursor. 10˜50 parts by weight of the Zr precursor and 5˜30 parts by weight of the Ti precursor may be included based on 100 parts by weight of the Pb precursor. Accordingly, electrical conductivity can be improved because the PZT amorphous alloy plating solution has a structure which has low crystallinity or which is amorphous. Furthermore, excellent electrical characteristics can be achieved because the PZT amorphous alloy plating solution has excellent conductivity or chemical stability.

Abstract: The present invention relates to a biological information recognition apparatus and a method for selectively activating, by the biological information recognition apparatus, a plurality of piezoelectric elements. More particularly, the present invention relates to a biological information recognition apparatus which may be used to identify a user by recognizing biological information, such as the fingerprint, blood vessels, and bones of a finger of the user, and a method of driving the same. More specifically, the present invention relates to a methodology for individually activating a plurality of piezoelectric elements included in the biological information recognition apparatus and scanning biological information using a method different from a conventional method by selectively activating the plurality of piezoelectric elements.

Abstract: Disclosed is a storage device reader for interfacing a storage device and a user terminal, which includes a storage unit and a control unit. The data storage unit stores reader recognition information uniquely assigned to the storage device reader. The control unit retrieves reader recognition information stored in the storage device, determines whether or not the retrieved reader recognition information matches reader recognition information stored in the data storage unit, and transferring a file list stored in the storage device to the user terminal if the retrieved reader recognition information matches the stored reader recognition information.

Abstract: Disclosed is a portable storage device including a fingerprint sensor, a fingerprint data processing unit, a data repository, a data processing unit and the like. The fingerprint data processing unit outputs a fingerprint matching signal when fingerprint information received from the fingerprint sensor matches authentication fingerprint information of the fingerprint data repository. If the fingerprint matching signal is received from the fingerprint data processing unit, the data processing unit retrieves a data requested by the user terminal from the data repository, converts the retrieved data into a read-only data and transmits the read-only data to the user terminal.

Abstract: Disclosed is a portable storage device including a fingerprint sensor, a fingerprint data processing unit, a data repository, a data processing unit and the like. The fingerprint data processing unit outputs a fingerprint matching signal when fingerprint information received from the fingerprint sensor matches authentication fingerprint information of the fingerprint data repository. If the fingerprint matching signal is received from the fingerprint data processing unit, the data processing unit retrieves a data requested by the user terminal from the data repository, converts the retrieved data into a read-only data and transmits the read-only data to the user terminal.

Abstract: Disclosed is a storage device reader for interfacing a storage device and a user terminal, which includes a storage unit and a control unit. The data storage unit stores reader recognition information uniquely assigned to the storage device reader. The control unit retrieves reader recognition information stored in the storage device, determines whether or not the retrieved reader recognition information matches reader recognition information stored in the data storage unit, and transferring a file list stored in the storage device to the user terminal if the retrieved reader recognition information matches the stored reader recognition information.