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Jie Yuan

Jie Yuan, Hong Kong CN

Patent application numberDescriptionPublished
20100194956Apparatus and method for improving dynamic range and linearity of CMOS image sensor - Described herein is a circuit and related method for improving the dynamic range and the linearity characteristic of a CMOS image sensor. In various embodiments of the CMOS image sensor, a current sampler, a comparator, and a 1-bit memory are incorporated in each pixel circuit. In the image sensor, pixels are arranged in columns and a column slice is used to read the digital and analog singles from each column. In addition, a calibration circuit is incorporated in the sensor circuit for providing calibration current, which is used to generate calibration parameter. The image sensor operates in three non-overlapping modes: the difference mode, the WDR mode, and the calibration mode. The image sensor is switched among the three modes by control signals, which are provided to the image sensor by various control circuits. The image sensor normally operates in the difference mode and switches to the WDR mode when the difference between consecutive frames is over a threshold. The calibration mode allows the image sensor generate calibration parameters which are used to improve the linearity of the sensor through a interpolation method.08-05-2010

Jie Yuan, Shenzhen City CN

Patent application numberDescriptionPublished
20100165381PRINTING METHOD AND SYSTEM - A printing method and a printing system are provided. When printing a file on a client, the client is connected to a printer via a network. A print homepage is shown to the client. Then the client accesses the printer via the print homepage on the client, and sends an coded file to the printer. The printer receives the coded file from the client, and decodes the file to print. The printing system includes a client and a printer. An coded file is stored in the client. The client includes an internet browser. The printer includes a file receiving module to receive the file from the client and a print controlling module capable of controlling the printer to decode and print the coded file. A print homepage is shown on the internet browser. The client accesses the printer and sends the coded file to the printer via the print homepage.07-01-2010
20100185737METHOD OF SENDING ELECTRONIC GREETING CARD FROM DIGITAL PHOTO FRAME - A method of sending an electronic greeting card from a digital photo frame (DPF) is disclosed. The method includes selecting at least one stored electronic greeting phrase from a template module of the DPF to the electronic greeting card. The DPF sends the greeting card as an email to a mail server through Simple Mail Transfer Protocol (SMTP). The DPF stores the electronic greeting card in a mail box of the mail server according to the destination address. The electronic greeting card is received from the mail box through Post Office Protocol (POP).07-22-2010

Jie Yuan, South Grafton, MA US

Patent application numberDescriptionPublished
20090241558COMPONENT COOLING SYSTEM - A component cooling system includes a component tank configured to receive a heat-generating device. The component tank is at least partially filled with a subcooled liquid at a first pressure and at a first temperature. A cryogenic system maintains the component tank at essentially the first temperature. The cryogenic system includes a heat exchange system thermally coupled with at least a portion of the component tank. The heat exchange system is at least partially filled with a second saturated liquid at a second pressure and at essentially the first temperature. A cryostat tank is fluidly-coupled with the heat exchange system and allows for pumpless displacement of the second saturated liquid between the heat exchange system and the cryostat tank.10-01-2009
20090247412SUPERCONDUCTING CABLE ASSEMBLY AND METHOD OF ASSEMBLY - An HTS cable assembly is provided which includes a cryostat or housing, an HTS wire bundle disposed longitudinally within the cryostat, and plural support members disposed between the HTS wire bundle and the cryostat. The support members are elongate, tubular members having resiliency in both the axial and radial directions. The support members are disposed between the HTS wire bundle and the inner surface of the cryostat in an arrangement that maintains and supports the HTS wire bundle in a spaced-apart relationship with respect to the inner surface of the cryostat. In addition, the plural support members are configured to substantially prevent relative movement between the HTS wire bundle and the cryostat.10-01-2009
20100087322ELECTRICITY TRANSMISSION COOLING SYSTEM - A cooling system includes a first section of high temperature superconducting (HTS) cable configured to receive a first flow of coolant and to permit the first flow of coolant to flow therethrough. The system may further include a second section of high temperature superconducting (HTS) cable configured to receive a second flow of coolant and to permit the second flow of coolant to flow therethrough. The system may further include a cable joint configured to couple the first section of HTS cable and the second section of HTS cable. The cable joint may be in fluid communication with at least one refrigeration module and may include at least one conduit configured to permit a third flow of coolant between said cable joint and said at least one refrigeration module through a coolant line separate from said first and second sections of HTS cable. Other embodiments and implementations are also within the scope of the present disclosure.04-08-2010
20100149707Parallel Connected HTS Utility Device and Method of Using Same - A method of controlling fault currents within a utility power grid is provided. The method may include coupling a superconducting electrical path between a first and a second node within the utility power grid and coupling a non-superconducting electrical path between the first and second nodes within the utility power grid. The superconducting electrical path and the non-superconducting electrical path may be electrically connected in parallel. The superconducting electrical path may have a lower series impedance, when operated below a critical current level, than the non-superconducting electrical path. The superconducting electrical path may have a higher series impedance, when operated at or above the critical current level, than the non-superconductor electrical path.06-17-2010
20110132631FAULT CURRENT LIMITING HTS CABLE AND METHOD OF CONFIGURING SAME - A cryogenically-cooled HTS cable is configured to be included within a utility power grid having a maximum fault current that would occur in the absence of the cryogenically-cooled HTS cable. The cryogenically-cooled HTS cable includes a continuous liquid cryogen coolant path for circulating a liquid cryogen. A continuously flexible arrangement of HTS wires has an impedance characteristic that attenuates the maximum fault current by at least 10%. The continuously flexible arrangement of HTS wires is configured to allow the cryogenically-cooled HTS cable to operate, during the occurrence of a maximum fault condition, with a maximum temperature rise within the HTS wires that is low enough to prevent the formation of gas bubbles within the liquid cryogen.06-09-2011

Patent applications by Jie Yuan, South Grafton, MA US

Jie Yuan, Kunshan CN

Patent application numberDescriptionPublished
20100045889FASTENING DEVICE - A fastening device is provided for fastening at least one article on a carrier. The fastening device includes at least one positioning component, a fixed plate fixed on the carrier, and a pressing plate positioned on the fixed plate by the positioning component. The pressing plate has at least one positioned portion and a retaining plate corresponding to the fixed plate. The retaining plate abuts against a side edge of the article for preventing the article from moving along a first direction. The positioning component movably passes through the positioned portion to allow the pressing plate to selectively move along the first direction and be positioned on the fixed plate for adjusting the distance between the retaining plate and the fixed plate.02-25-2010