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Personal choice biometric signature

InactiveUS7013030B2Improved high security method and systemEasy to useElectric signal transmission systemsImage analysisCombined useLinearity
A biometric method and system for personal authentication using sequences of partial fingerprint signatures provides a high security capability to various processes requiring positive identification of individuals. This approach is further enhanced by employing a frequency domain technique for calculating a Similarity Index of the partial fingerprint signatures. In a baseline usage, the sequential partial fingerprint sequence techniques augments sentinel systems for gaining access to restricted areas, and when used in combination with financial cards, offer a unique and greatly simplified means for authenticating or identifying individuals. A highly automated technique initially obtains four (illustratively) linear partial fingerprint signatures which serve as reference data against which later proffered candidate data in the form of at least two linear partial fingerprint signatures are compared for authentication. The particular two candidate signatures used and the sequence in which they are submitted are selected with the user's consent and serve as a PIN-like unique personal code. In an advanced embodiment, the same two candidate signatures in the chosen sequence are processed in a unique FFT / DFT process to produce a highly reliable Similarity Index to authenticate or verify the identity of individuals. The use of only partial fingerprint data greatly allays the concerns of widespread fingerprint dissemination by many individuals.
Owner:WONG JACOB Y +1

Disposable automatic safety circular anastomat

The invention discloses a disposable automatic safety circular anastomat, which relates to a circular anastomat provided with an automatic safety device. The invention belongs to a surgical operation instrument, and is particularly suitable for end-to-end, end-to-side and side-to-side cutting, sealing and stump cut anastomosis in alimentary tract operation of the esophagus, the stomach, the intestinal tract and the like. The disposable automatic safety circular anastomat comprises a nail butting seat component, a nail compartment component, an aluminum bended pipe, a bended push rod component, a movable handle component, a regulation screw nut component, an automatic safety device and a fixed handle component, wherein the bended push rod component comprises a bended push rod, a guide shaft, a connecting sheet, a lead screw, a regulation block, a regulation screw and a press sheet, the bended push rod component is sheathed and arranged in the aluminum bended pipe, the nail compartment component comprises a nail compartment sleeve, a nail compartment, a nail pushing sheet and an annular cutter, the nail butting seat assembly comprises a nail butting seat, a jump ring pipe, a jump ring and a nail butting seat cover, and the automatic safety device comprises a safety positioning plate, a safety positioning plate reset spring, a safety positioning plate reset spring pin, an indication block, an indication block transmission plate, an indication block transmission reset spring and an indication block transmission plate positioning pin.
Owner:VICTOR MEDICAL INSTR

User-transparent system for uniquely identifying network-distributed devices without explicitly provided device or user identifying information

A technique for uniquely identifying devices without explicitly provided device or user identifying information in a networked client-server environment, e.g., the Mobile Internet, in which content is downloaded from a server to a device browser executing at a client device, and using static XML markup tags embedded in the content in a manner transparent to a user situated at the device browser, derives a globally unique device identifier. Device identifying information is captured and maintained in a device profile database associated with a globally unique device identifier. Specifically, mark up code embedded into a referring content page effectively downloads software from a distribution server, and then instantiates the software in the client device browser. The software transparently and dynamically inserts an Internet address request to a device identification management system. The device identification management system selects a device profile associated with a previously detected request from the device and retrieves its globally unique identifier from a database of all profiles for all previous devices requesting unique device identifications. If a matching profile is not found in the database, the device identifying information associated with the request is entered as a new device profile along with a globally unique identifier associated with that specific device in the database. The globally unique identifier is delivered back to the device or external systems for their own use, e.g., mobile Internet advertising management systems.
Owner:MEDIA STAMP

Extraction method for early failure sensitive characteristics based on ensemble empirical mode decomposition (EEMD) and wavelet packet transform

InactiveCN103091096AGuaranteed Adaptive Accurate PartitioningAdaptive Precise Partition PreciseMachine gearing/transmission testingMachine bearings testingNODALDecomposition
The invention relates to an extraction method for early failure sensitive characteristics based on ensemble empirical mode decomposition (EEMD) and wavelet packet transform. The extraction method for the early failure sensitive characteristics based on the EEMD and the wavelet packet transform includes the following steps: (1), collected original vibration signals of mechanical and electrical equipment are decomposed according to the EEMD, white noise is added, and intrinsic mode function (IMF) components are obtained through decomposition; (2), the sensitive IMF components closely related to failure are chosen, and other irrelative IMF components are ignored; (3), the sensitive IMF components chosen through step (2) are decomposed in an orthogonal wavelet packet mode, and a wavelet coefficient of each node is obtained; and (4), envelopes are extracted from the obtained wavelet packet coefficients by adoption of the Hilbert transform and the Fourier transform, power spectrums are calculated, the power spectrum corresponding to each wavelet packet coefficient is obtained and serves as the early failure sensitive characteristic , and the sensitive characteristics are automatically obtained. Self-adapting signals can be decomposed, the sensitive characteristics can be convenient to obtain automatically, diagnosis precision and speed are improved, and a mechanical and electrical system can be diagnosed quickly, accurately and stably. The extraction method for the early failure sensitive characteristics based on the EEMD and the wavelet packet transform can be applied to the field of mechanical and electrical equipment failure diagnosis.
Owner:BEIJING INFORMATION SCI & TECH UNIV
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