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Bi, MA

Daoshen Bi, Boxborough, MA US

Patent application numberDescriptionPublished
20080272587ID Document Structure with Pattern Coating Providing Variable Security Features - A security feature for an identification document and method for making it provide layers of security, including, for example, tamper evidence, optically variable effects, and personalized information that links the security information to the document and its bearer. The feature is made by printing a first material representing first information on a core layer of the document. This first material at least partially overlaps the core layer. One example is Xerographic printing of information about the ID document applicant and the applicant's photo. The process also applies a second material representing second information adjacent to the first material. One example is ink jet printing of personal information with a UV curable ink in the form of a relief pattern on the core layer. Finally, the process applies a laminate layer over the core layer. The laminate layer covers the first and second materials. The first and second materials adhere differently to the laminate and core layers such that removal of the laminate layer from the core layer causes a separation of the first and second materials. The relief pattern is made to give the document a tactile feel as well as create optically variable effects.11-06-2008
20090315318Personalizing ID Document Images - A security feature for an identification document comprising a document substrate, a first security feature applied to the document substrate, and an image of a bearer of the identification document transferred over the first security feature. The image includes a knockout portion in which selected areas of the image are not transferred to the substrate. The selected areas expose the first security feature and selected areas are in the form of personal information of the bearer of the document.12-24-2009
20100020151Identification Card Printer-Assembler for Over-The-Counter Card Issuing - The present invention relates to assembling identification documents in an over-the-counter issuing environment. In one implementation of the present invention, we provide an ink jet printer-based assembling system. An identification document substrate receives ink jet printed information. The printed substrate is laminated. In another implementation, a carrier web carries lamination pieces. Both the carrier web and the document substrate include form feed holes or other registration notches. The holes or notches are used to align the substrate with the lamination pieces, and to align a laminated document substrate for final cutting.01-28-2010
20110045255Tamper Evident Adhesive and Identification Document Including Same - A composition is provided for adhering a first article to a second article, the composition comprising a thermally active low Tg polymeric resin; and a multifunctional crystalline polymer. The thermally active low Tg polymeric resin can, for example, comprise 50-99% of the composition. The multifunctional crystalline polymer can, for example, comprise 1-50% of the composition. In one embodiment, the multifunctional crystalline polymer comprises 5-20% by weight of the composition. In one embodiment, the multifunctional crystalline polymer has a low molecular weight.02-24-2011
20110057040OPTICALLY VARIABLE PERSONALIZED INDICIA FOR IDENTIFICATION DOCUMENTS - The invention relates to identification documents, and in particular to providing optically variable personalized data to identification documents. In one implementation, we provide an identification document comprising a document layer and a first indicium. The document layer comprises a material capable of being printed by a thermally transferable optically variable ink. The first indicium is printed on the document layer and comprises personalized data and printed to the document layer by a thermally transferred optically variable ink. The first indicium may be printed to the document layer by disposing a thermally transferable optically variable ink in a mass transfer panel of a printer ribbon adapted for use in a dye diffusion thermal transfer printer, and printing the first indicium as part of a mass transfer printing process. The thermally transferred optically variable ink can be selected and printed such that the first indicium has at least one of a luster, shine, sheen, pearlescent appearance, iridescent appearance, and mirror-like appearance. This technology enables the creation of a halftone “mirror image” over a color ghost image to achieve a layered and linked multiple personalization scheme of ID documents.03-10-2011
20110057434Image Destruct Feature Used With Image Receiving Layers In Secure Documents - An image destruct material comprises a release layer positioned between an image receiving layer and a base layer. The adhesion between the release layer and the base layer is greater than adhesion between the release layer and the image receiving layer. The release layer material can be used in secure documents that have an image receiving layer. After information is printed on the image receiving layer, an overlaminate is applied over it. Removal of the overlaminate destroys the printed image on the receiving layer because of the relative adhesive properties of the image receiving layer, overlaminate and release layer.03-10-2011
20110123132Image Processing Techniques for Printing Identification Cards and Documents - The invention relates to identification documents, and in particular to pre-printing processing covert images, such as UV or IR images, provided on such identification documents. In one implementation, the invention provides a method of processing a digital image that is to be printed on a surface of an identification document as a fluorescing-capable image to improve the quality of the image. Edges or boundaries are detected within the image, the detected edges or boundaries forming an intermediate image. The edges or boundaries within the image are emphasized, and the emphasized image is used for printing the covert image. In some implementations of the invention, a digital watermark is embedded in the covert image.05-26-2011

Patent applications by Daoshen Bi, Boxborough, MA US

Daoshen Bi, Boxborugh, MA US

Patent application numberDescriptionPublished
20110266349CONTACT SMART CARDS HAVING A DOCUMENT CORE, CONTACTLESS SMART CARDS INCLUDING MULTI-LAYERED STRUCTURE, PET-BASED IDENTIFICATION DOCUMENT, AND METHODS OF MAKING SAME - The present invention relates to identification documents and smart cards. In one implementation, we provide a contactless smart identification document comprising a first contact layer, a second contact layer, and a carrier layer. The carrier layer is sandwiched in between the first and second contact layers, and the carrier layer includes least a transceiver and electronic circuitry. At least a portion of the first and second contact layers migrate into the carrier layer. This migration helps to secure at least a portion of the transceiver or electronic circuitry to the first and second contact layers,11-03-2011

Daosnen Bi, Boxborough, MA US

Patent application numberDescriptionPublished
20110033675Identification Documents Including Anti-Counterfeiting Features Providing Tamper Evidence and - An identification document which includes anti-counterfeiting features to provide tamper evidence in response to counterfeiting attempts includes an image receiving area having one or more fixed or variable items of information. In one embodiment, a pattern of material is embedded into the image receiving layer in the vicinity of the one or more fixed or variable items of information in a predetermined configuration. The embedded pattern is comprised of a solvent insoluble material such that attempted delamination of the document using solvents results in visually detectable tampering.02-10-2011

Frank Bi, Shrewsbury, MA US

Patent application numberDescriptionPublished
20090267453BULK ACOUSTIC WAVE RESONATOR WITH CONTROLLED THICKNESS REGION HAVING CONTROLLED ELECTROMECHANICAL COUPLING - According to an exemplary embodiment, a bulk acoustic wave (BAW) resonator includes a piezoelectric layer situated between upper and lower electrodes, where each of the upper and lower electrodes are a high density metal. The BAW resonator further includes a controlled thickness region including a low density metal segment, where the low density metal segment is situated adjacent to the piezoelectric layer, and where the controlled thickness region has controlled electromechanical coupling. The controlled thickness region can provide reduced electromechanical coupling into lateral modes. The low density metal segment can extend along the perimeter of the BAW resonator.10-29-2009
20090267457Bulk acoustic wave resonator with reduced energy loss - According to an exemplary embodiment, a bulk acoustic wave (BAW) resonator includes a piezoelectric layer having a disrupted texture region, where the disrupted texture region is situated in a controlled thickness region of the BAW resonator. The BAW resonator further includes lower and upper electrodes situated on opposite surfaces of the piezoelectric layer. The controlled thickness region has controlled electromechanical coupling and includes a segment of material situated over the upper electrode. The segment of material can be a metal or a dielectric material. The disrupted texture region can be situated at an edge of the BAW resonator and can extend along a perimeter of the BAW resonator.10-29-2009

Lei Bi, Cambridge, MA US

Patent application numberDescriptionPublished
20090136191MAGNETIC MATERIAL FOR MAGNETO-OPTICAL ISOLATOR - A magneto-optical structure is provided. The magneto-optical structure includes a substrate. A waveguide layer is formed on the substrate for guiding electromagnetic radiation received by the magneto-optical structure. The waveguide layer includes magnetic oxide material that comprises ABO05-28-2009
20100238536INTEGRATED SILICON/SILICON-GERMANIUM MAGNETO-OPTIC ISOLATOR - A magneto-optical isolator device is provided. The isolator device includes a substrate and a bottom cladding layer that is formed on the substrate. An optical resonator structure is formed on the bottom cladding layer. The resonator structure includes crystalline or amorphous diamagnetic silicon or silicon-germanium so as to provide non-reciprocal optical isolation. A top cladding layer is formed on the resonator structure. One or more magnetic layers positioned on the top cladding layer or between the top cladding or bottom cladding layers and the optical resonator structure.09-23-2010

Zhiqiang Bi, Shrewsbury, MA US

Patent application numberDescriptionPublished
20110121916HYBRID BULK ACOUSTIC WAVE RESONATOR - A hybrid bulk acoustic wave (BAW) resonator comprises a first electrode, a second electrode, a piezoelectric layer disposed between the first and second electrodes, and a single mirror pair disposed adjacent the second electrode. In one example, the hybrid bulk acoustic wave resonator further comprises a substrate, and the first electrode is disposed adjacent the substrate. A method of fabricating a hybrid BAW resonator is also disclosed.05-26-2011