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David Chang
David Chang, Edwards, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20100084489 | Cooling Feature for fuel injector and fuel system using same - A thermal load control assembly for a fuel injector includes a rail inlet port, a cooling inlet port and a fuel drain port. A leakage path channels leaked fuel originating from the rail inlet port to the fuel drain port. A cooling path channels fuel originating from the cooling inlet port to the fuel drain port. A fuel system using a thermal load control assembly includes a single fuel tank that supplies fuel to the rail inlet port and the cooling inlet port of a plurality of fuel injectors and collect fuel from the fuel drain port of the plurality of fuel injectors. | 04-08-2010 |
| 20110056464 | COOLING FEATURE FOR FUEL INJECTOR AND FUEL SYSTEM USING SAME - A thermal load control assembly for a fuel injector includes a rail inlet port, a cooling inlet port and a fuel drain port. A leakage path channels leaked fuel originating from the rail inlet port to the fuel drain port. A cooling path channels fuel originating from the cooling inlet port to the fuel drain port. A fuel system using a thermal load control assembly includes a single fuel tank that supplies fuel to the rail inlet port and the cooling inlet port of a plurality of fuel injectors and collect fuel from the fuel drain port of the plurality of fuel injectors. | 03-10-2011 |
David Chang, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20100299074 | REMOTE DATA COLLECTING SYSTEMS AND METHODS - The present invention provides a remote data collecting system comprising a measuring device comprising at least two scales in communication with a terminal center. The terminal center is in communication with a control center. The control center can be linked to a computer with software to collect, distribute, analyze, and display data collected from the measuring device. The remote data collecting system is particularly useful for uncontrolled environment (e.g., in-home) product testing such as testing the palatability of pet foods. | 11-25-2010 |
David Chang, Fengxian CN
| Patent application number | Description | Published |
|---|---|---|
| 20100117383 | DOOR STRIKE - A door strike including: a latch retainer for retaining a door latch; a lock actuator which operates when power is applied; a mode selector rotatable between at least two positions; in a first position of the mode selector the strike adopts a power to open mode, in the second position of the mode selector the strike adopts a power to lock mode. | 05-13-2010 |
David Chang, Calabasas, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100074909 | Combinations for the treatment of cancer - This invention is in the field of pharmaceutical agents and specifically relates to compounds, compositions, uses and methods for treating cancer. | 03-25-2010 |
David Chang, Milpitas, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090288104 | EXTENSIBILITY FRAMEWORK OF A NETWORK ELEMENT - Techniques for providing extensibility framework for processing network packets are described herein. In one embodiment, in response to a packet received at a network element, the packet is processed using a generic process for performing a first type of operations required by the packet, wherein the first type of operations is common to a type of the packet. An extended process is invoked, via an extensibility application programming interface (API), to perform a custom operation that is not common to the generic process and is not statically known to the generic process, in order to determine whether the packet is eligible to access a resource of at least one of a plurality of application servers of a datacenter, including a layer-7 access control process. The network element operates as an application service gateway for the datacenter. Other methods and apparatuses are also described. | 11-19-2009 |
| 20090288135 | METHOD AND APPARATUS FOR BUILDING AND MANAGING POLICIES - Techniques for building and managing network policies for accessing resources of a datacenter are described herein. In one embodiment, events are captured within a network element pertaining to certain activities of accessing certain resources of a datacenter, wherein the network element operates as an application service gateway to the datacenter. A new rule/policy is provisioned based on attributes extracted from the captured events, where the attributes includes at least one of user attribute, environment attribute, and a resource attribute. A simulation is performed on the new rule/policy under a real time network traffic condition, generating a simulation result. The new rule/policy is committed if the simulation result satisfies a predetermined condition, wherein the new rule/policy is enforced within the network element to determine whether a particular client is eligible to access a particular resource of the datacenter. Other methods and apparatuses are also described. | 11-19-2009 |
| 20090288136 | HIGHLY PARALLEL EVALUATION OF XACML POLICIES - Techniques for highly parallel evaluation of XACML policies are described herein. In one embodiment, attributes are extracted from a request for accessing a resource including at least one of a user attribute and an environment attribute. Multiple individual searches are concurrently performed, one for each of the extracted attributes, in a policy store having stored therein rules and policies written in XACML, where the rules and policies are optimally stored using a bit vector algorithm. The individual search results associated with the attributes are then combined to generate a single final result using a predetermined policy combination algorithm. It is then determined whether the client is eligible to access the requested resource of the datacenter based on the single final result, including performing a layer-7 access control process, where the network element operates as an application service gateway to the datacenter. Other methods and apparatuses are also described. | 11-19-2009 |
David Chang, Rochester, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20120022357 | MEDICAL EMITTER/DETECTOR IMAGING/ALIGNMENT SYSTEM AND METHOD - Improved methods and apparatuses for imaging during medical procedures in accordance with various embodiments of the present invention include use of an image correction algorithm. In various embodiments, an original image of a region of interest where a medical procedure occurring along a particular axis will be performed is created with a beam emitter and a generally planar detector. Due to the emitter not being aligned orthogonal to the detector, the original image will be skewed. Using a known location and orientation of the detector, a location and orientation of the emitter provided by a position monitoring system, and the original image, a processing system can execute the image correction algorithm to provide a corrected image to allow a surgeon to perform the medical procedure while viewing an accurate corrected image in real-time. | 01-26-2012 |
| 20120022544 | PEDICLE SCREW INSERTION SYSTEM AND METHOD - Improved methods and apparatuses for inserting pedicle screws in accordance with embodiments of the present invention include an image correction algorithm. In various embodiments, an original image of a region of interest of a patient including a pedicle is created with an X-ray emitter and an X-ray detector. Due to the X-ray emitter not being aligned orthogonal to the X-ray detector, the original image will be skewed. Using a known location and orientation of the X-ray detector, a location and orientation of the X-ray emitter provided by a position monitoring system, and the original image, a processing system can execute the image correction algorithm to provide a corrected image to allow a surgeon to properly insert a pedicle screw along the axis of the pedicle while viewing an accurate corrected image in real time | 01-26-2012 |