Abstract: The present invention provides a LED chip structure. The LED chip structure comprises a substrate and an N type layer disposed on the substrate; a P type layer disposed on the N type layer; a N type contact pad and a P type contact pad disposed below the substrate; conductive through holes disposed through the substrate to electrically connect the N type layer to the N type contact pad and the P type layer to the conduct heat generated by the P type layer and the N type layer downward.

Abstract: An LED lampshade has a body and multiple light concentrators. The body has a light exit plane. The light concentrators are formed on the body. Each light concentrator has a light incident recess, a light transmitting recess and an third concentration wall. The light incident recess has a first concentration wall and a first chamber defined by the first concentration wall. The light transmitting recess corresponds to the light incident recess, and has a second concentration wall, a second chamber defined by the second concentration wall and opposite to the first chamber, and an opening formed through the light exit plane. The third concentration wall is formed around a periphery of the light concentrator. Given the opposite light incident recess and light transmitting recess and the three concentration walls, the LED lampshade enhances light transmittance and concentration therethrough.

Abstract: A power conversion controller having an adaptive peak current reference, including: a peak current reference generation means, used for generating a peak current reference signal by performing an adaptive arithmetic operation on an output voltage feedback signal and a power source signal; and a comparator means, used for generating a gating signal by performing a voltage comparison operation on the peak current reference signal and a current sensing signal.

Abstract: A diindenothiophene derivative of the following formula (1) is disclosed: wherein each of G1, G2, G3 and G4 is independently an unsubstituted or substituted C6-C40-aromatic group or a C1-C40-aliphatic group; A is an electron-withdrawing group; and D is an electron-donating group. The inventive diindenothiophene derivatives can be used in a dye-sensitized solar cell.

Abstract: A LED driver circuit, including a LED module, a bias circuit, a first switch, an inductor, a regulator, a controller, a second switch, and a current-to-voltage converter, is used to provide a load current for the LED module, wherein the bias circuit is biased by a first bias current and the regulator is biased by a second bias current, and the first bias current and the second bias current are drawn from the load current. Besides, the controller can be implemented with a low voltage controller.

Abstract: The image sensor package with dual substrates comprises a first substrate with a die receiving opening and a plurality of first through hole penetrated through the first substrate; a second substrate with a die opening window and a plurality of second through hole penetrated through the second substrate, formed on the first substrate. A part of the second wiring pattern is coupled to a part of the third wiring pattern; an image die having conductive pads and sensing array received within the die receiving opening and the sensing array being exposed by the die opening window; and a through hole conductive material refilled into the plurality of second through hole, some of the plurality of second through hole coupling to the conductive pads of the image sensor.

Abstract: A sliding rail of a sliding closure mobile phone includes a sliding rail fixing part fixed on the body of the mobile phone, a sliding rail sliding strip, and a sliding rail moving part fixed connected on the sliding closure of the mobile phone. The sliding rail sliding strip is set between the sliding rail fixing part and the sliding rail moving part for noise cancelling and sliding. Several lug bosses are set at the coupling position of the sliding rail sliding strip and the sliding rail fixing part for adapting to and holding the sliding rail fixing part.

Abstract: A novel LED driver circuit, including: a current regulation circuit, having a first end and a second end, wherein a first current is flowing into the second end, and a voltage difference between the first end and the second end is generated in response to the first current; a transistor, coupled with the first end and second end of the current regulation circuit; a bias network, having a first end and a second end, the second end being coupled with the transistor; and a LED module, having at least two connection nodes, wherein the connection node at one end of the LED module is coupled to a line voltage, the connection node at the other end of the LED module is coupled to the transistor, and one of the at least two connection nodes is coupled with the first end of the bias network.

Abstract: A hydrocyclone separator includes a separator body having an upper body part and a lower body part narrower than the upper body part in diameter; a feeder connected helically to the upper body part from a lateral side for feeding in a raw liquid; an upstream outlet disposed axially within the separator body, having an upper part projecting upward and axially from the upper body part and a lower part extending into the lower body part; a downstream outlet attached axially to the lower body part in spatially communication therewith; and a filtering unit disposed axially within an inner wall confining the upstream outlet. The filtering unit has an upper part projecting upwardly and outwardly from a top end of the upstream outlet and a lower part extending into the downstream outlet. The filtering unit consists of a filtering membrane having an inner wall confining the filtering member.

Abstract: An access control method performed by a network server to which a plurality of users are connected is disclosed. In the access control method, upon access from each user to data stored in a network resource, the access control method searches a plurality of access control rules prepared in advance for controlling accesses from the users and each including an access control value which is one of a finite integer number of values, by using at least one of information on the user and information on the data. Then, on the basis of the retrieved access control rule, the access control value is determined. Thereafter, response information from the data or access request information to the data is changed by using the determined access control value.

Abstract: A database management system for determining consistency in a hierarchical database sequentially reads pointers of a plurality of segment data, generates an address hash value, which is a hash value of retention addresses of the segment data having been read, generates a pointer hash value, which is a hash value of the pointers included in the segment data having been read, corrects the address hash value, when the contents of the address already read is updated, based a retention address of segment data added or deleted by the update, corrects the pointer hash value based on each pointer changed by the update, and determines that the hierarchical database is consistent if the corrected address hash value coincides with the corrected pointer hash value.

Abstract: Updating an indexing tables in a database system comprising a database storing item tables of items appended by timestamps. Each of items is further categorized by timestamp into said tables, and said item tables being indexed by indexing data. The database system further comprises an indexing table for said indexing data, listing the earliest timestamp of said item table together with said indexing data and a system manager for searching said item tables using said indexing table and a maintenance module for said indexing table.

Abstract: The present invention discloses a warm-white-light emitting diode has the substrate of indium gallium nitride (InGaN) heterojunction containing a large amount of quantum wells and having a light conversion polymer layer, characterized by that the light conversion polymer layer is uniform in concentration, the light-emitting surface and edges of the indium gallium nitride heterojunction are covered with a thermosetting polymer, and the light conversion polymer layer contains some fluorescent powders, which are formed as at least two particle layers in the light conversion polymer layer to ensure the light transmitted reaching 20% of the first-order blue light and 70˜80% of the second-order orange-yellow light from the indium gallium nitride heterojunction. The present invention also discloses a fluorescent powder.

Abstract: A paint ball gun includes a body, a valve unit and a striking unit. The valve unit is disposed in the body. The striking unit is disposed in the body, and includes a striker and a collar. The striker is made of metal and formed with a striking tip at an end for hitting the valve unit. The collar is made of plastics and provided on the striking tip.

Abstract: A method, system, and computer program product are disclosed. Exemplary embodiments of the method, system, and computer program product may include hardware, process steps, and computer program instructions for supporting versioning in a data warehouse. The data warehouse may include a data warehouse engine for creating a data warehouse including a fact table and temporary tables. Updated or new data records may be transferred into the data warehouse and bulk loaded into the temporary tables. The updated or new data records may be evaluated for attributes matching existing data records. A version number may be assigned to data records and data records may be marked as being the most current version. Updated and new data records may be bulk loaded from the temporary tables into the fact table when a version number or a version status is calculated.

Abstract: A method for analyzing predefined subject matter in a patent database being for use with a set of target patents, each target patent related to the predefined subject matter, the method comprising: creating a feature space based on frequently occurring terms found in the set of target patents; creating a partition taxonomy based on a clustered configuration of the feature space; editing the partition taxonomy using domain expertise to produce an edited partition taxonomy; creating a classification taxonomy based on structured features present in the edited partition taxonomy; creating a contingency table by comparing the edited partition taxonomy and the classification taxonomy to provide entries in the contingency table; and identifying all significant relationships in the contingency table to help determine the presence of any white space.

Abstract: A piracy protection system incorporates tamper detection capabilities into a protected copy of an application by disassembling a statically linked binary of the application, modifying some of the instructions in the application, and then rewriting all of the modified and unmodified instructions to a new executable file, a protected copy. The piracy protection system comprises an offline tamper detection technique in which the software itself detects the tampering and causes the program to fail, therefore protecting itself from malicious attacks. The system further comprises a dynamic software-watermarking process that incorporates code obfuscation to prevent reverse engineering.