Patents by Inventor Chin-Hai Chang
Chin-Hai Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8305425Abstract: A panoramic camera system is disclosed that includes an unified optical system, an image capture device, and a processing unit. The unified optical system may include a first set of lenses that guide images received from horizontal directions of a target scene that surrounds the unified optical system. The unified optical system may also include a deflecting device that deflects the images guided through the first set of lenses and a second set of lenses that projects the images deflected by the deflecting device. The image capture device collects the projected images into a determined pattern based on the second set of lenses. Moreover, the processing unit processes the collected images from the image capture device to generate at least one of image signals and video signals representing a panoramic rendition of the target scene.Type: GrantFiled: August 21, 2009Date of Patent: November 6, 2012Assignee: Promos Technologies, Inc.Inventors: Mei Len, Chin-Hai Chang
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Publication number: 20100045774Abstract: A panoramic camera system is disclosed that includes an unified optical system, an image capture device, and a processing unit. The unified optical system may include a first set of lenses that guide images received from horizontal directions of a target scene that surrounds the unified optical system. The unified optical system may also include a deflecting device that deflects the images guided through the first set of lenses and a second set of lenses that projects the images deflected by the deflecting device. The image capture device collects the projected images into a determined pattern based on the second set of lenses. Moreover, the processing unit processes the collected images from the image capture device to generate at least one of image signals and video signals representing a panoramic rendition of the target scene.Type: ApplicationFiled: August 21, 2009Publication date: February 25, 2010Inventors: Mei LEN, Chin-Hai Chang
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Patent number: 6643841Abstract: A tape-out system of a mask tooling network for multiple supply chain. The tape-out system includes an integrated circuit (IC) designer computer, a design service computer, and a mask house computer; wherein the IC designer computer, the design service computer and the mask house computer are the multi-users for the tape-out system. A network connects the IC designer computer, the design service computer and the mask house computer. A device design data and a product mask data are provided through the network from the IC designer computer to the design service computer. The device design data and the product mask data undergo a processing step and a summarizing step, so that a product mask tooling data is obtained, which is then transmitted through the network to the mark house computer and the IC designer computer. The mask house computer fabricates a mask in accordance with the product mask tooling data.Type: GrantFiled: September 19, 2001Date of Patent: November 4, 2003Assignee: United Microelectronics Corp.Inventors: Chin-Hai Chang, Teh-Sen Perng
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Publication number: 20030056188Abstract: A tape-out system of a mask tooling network for multiple supply chain. The tape-out system comprises an integrated circuit (IC) designer computer, a design service computer, and a mask house computer; wherein the IC designer computer, the design service computer and the mask house computer are the multi-users for the tape-out system. A network connects the IC designer computer, the design service computer and the mask house computer. A device design data and a product mask data are provided through the network from the IC designer computer to the design service computer. The device design data and the product mask data undergo a processing step and a summarizing step, so that a product mask tooling data is obtained, which is then transmitted through the network to the mark house computer and the IC designer computer. The mask house computer fabricates a mask in accordance with the product mask tooling data.Type: ApplicationFiled: September 19, 2001Publication date: March 20, 2003Inventors: Chin-Hai Chang, Teh-Sen Perng
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Patent number: 5534412Abstract: Methods and compositions are provided for the determination of cross-reactive alleles, where there is no antibody which will specifically distinguish between the two alleles. Particularly, the method employs an antibody which binds to the two alleles bound to a surface, an antibody specific for one of the alleles, a labeled conjugate which binds to a consensus sequence present in both alleles and positive and negative controls. By having an enhanced value where the interfering allele is present as compared to a value for the target allele, one can distinguish between the various alternatives involving the presence or absence of one or both alleles.Type: GrantFiled: September 29, 1994Date of Patent: July 9, 1996Assignee: SangStat Medical CorporationInventors: Philippe Pouletty, Chin-Hai Chang
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Patent number: 5270169Abstract: The invention provides for methods and compositions to detect the presence of anti-HLA antibodies, HLA antigen or preformed HLA-containing immune complexes in biological samples. The complement protein Clq is bound to a solid substrate, then mixed with a biological sample containing immune complexes. The immune complexes are preformed, or formed by adding HLA antigens to a biological sample containing antibodies to HLA, or alternatively, by combining a biological sample containing HLA antigens with defined antibodies to HLA. The immune complexes bind to Clq, and are then detected by the addition of a labeled reagent.Type: GrantFiled: June 23, 1992Date of Patent: December 14, 1993Assignee: SangStat Medical CorporationInventors: Chin-Hai Chang, Philippe Pouletty
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Patent number: 5256541Abstract: Reactivity between alloantigen and alloantigen-specific ligand, such as HLA and anti-HLA antibody, is detectable in a sample by separating from the sample a portion of a targeted class of ligands (including such ligands complexed with alloantigen) and measuring the amount of alloantigen in such complex containing fractions. In another embodiment of the invention, reactivity between a plurality of samples is detected by measuring soluble alloantigen in at least first and second biological samples and in a mixture of the samples. Since the formation of alloantigen immune-complexes in the mixture alters the physical and immunological behavior of soluble alloantigen, a divergence between the measured and expected concentration of the mixture indicates reactivity.Type: GrantFiled: November 6, 1991Date of Patent: October 26, 1993Assignee: SangStat Medical CorporationInventors: Philippe J. Pouletty, Chin-Hai Chang
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Patent number: 5225328Abstract: Methods and compositions for membrane flow-through assays using substrate and enzyme conjugate is described. A preferred method of the present invention comprises providing E. coli alkaline phosphatase (ECAP) conjugate, with additional color enhancement provided by combining lithium salt with the substrate, calcium and/or magnesium salts with the conjugate, and polyalcohol polymers with the conjugate. Color development is further enhanced by spotting tetrazolium dyes, such as the Nitro Blue tetrazolium series, onto the membrane.Type: GrantFiled: May 30, 1991Date of Patent: July 6, 1993Assignee: Quidel CorporationInventor: Chin-Hai Chang
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Patent number: 5022988Abstract: Compositions and devices are provided for the specific removal of components of plasma in efficient and economical ways. The devices provide for a tortuous path of the plasma through a high surface material to which is bound a binding compound for removal of the fluid component. The devices find particular application with plasma, in diagnosis, therapy, and for production of specific physiologically active materials.Type: GrantFiled: October 20, 1988Date of Patent: June 11, 1991Assignee: Applied ImmuneSciencesInventors: Thomas B. Okarma, Chin-Hai Chang, Brian R. Clark, L. Bernard Lerch
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Patent number: 4963265Abstract: Blood derived fluids are subjected to modification resulting in the production of anaphylatoxins. The anaphylatoxins may then be removed by passing the modified blood through silicic acid particles in an amount sufficient to substantially reduce the anaphylatoxins, while still retaining the other blood components and without affecting adversely the use of the blood for the patient.Type: GrantFiled: May 6, 1988Date of Patent: October 16, 1990Assignee: Applied ImmuneSciences, Inc.Inventors: Thomas B. Okarma, Brian R. Clark, L. Bernard Lerch, Chin-Hai Chang
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Patent number: 4902613Abstract: A lysing agent and a method for utilizing the lysing agent in the identification and enumeration of cells of a select subclass of leucocytes is provided. The lysing agent includes formaldehyde, an alkali or alkaline earth salt of a weak acid and a polyhydric alcohol.Type: GrantFiled: December 8, 1986Date of Patent: February 20, 1990Assignee: Becton, Dickinson and CompanyInventors: Chin-hai Chang, Alex M. Saunders
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Patent number: 4654312Abstract: A lysing agent and a method for utilizing the lysing agent in the identification and enumeration of cells of a select subclass of leucocytes is provided. The lysing agent includes formaldehyde, an alkali or alkaline earth salt of a weak acid and a polyhydric alcohol.Type: GrantFiled: May 14, 1984Date of Patent: March 31, 1987Assignee: Becton, Dickinson and CompanyInventors: Chin-hai Chang, Alex M. Saunders
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Patent number: 4599307Abstract: A method for identifying subpopulations of cells of interest without interference from other cells. In the method, a sample of at least three (3) types of cells, including a first and second type of cell which form a subpopulation of cells of interest and a third type of cell which interferes with the identification of said subpopulation, is divided into at least two (2) aliquots. A first antibody which is specific for the third type of interfering cells but not for the subpopulation, is labeled with two (2) fluorochromes, each of the fluorochromes having distinct emission spectra. The labeled first antibody is then added to a first one of the sample aliquots so as to label the third type of cells with the first antibody. A first analysis is performed by analyzing each cell to determine the fluorescence emitted and to count the third type of cells so as to distinguish the third type of cells from the subpopulation. The information obtained from the first analysis is retained for subsequent use.Type: GrantFiled: July 18, 1983Date of Patent: July 8, 1986Assignee: Becton, Dickinson and CompanyInventors: Alex M. Saunders, Chin-Hai Chang