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Dechao
Dechao Lin, Florence, SC US
| Patent application number | Description | Published |
|---|---|---|
| 20110198317 | HYBRID WELDING WITH MULTIPLE HEAT SOURCES - A method of welding a joint includes directing a first output from a high energy density heat source, such as a laser, against a first side of the joint. The method further includes directing a second output from an arc welding heat source, such as a gas metal arc welding torch, against a second side of the joint. The first output produces a keyhole surrounded by a molten metal pool which extends from the first side of the joint toward the second side of the joint. In some embodiments a third output from a second arc welding heat source may also be directed at the first side of the joint. A second molten metal pool produced by the arc welding heat source joins with the first molten metal pool and the third molten metal pool to form a common molten metal pool which solidifies to form the weld. | 08-18-2011 |
Dechao Liu, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20100208997 | Image-Based Advertisement Platform - Described is an image centric advertisement platform and technology in which input images are matched to advertisements based on actual visible content (e.g., corresponding to features) within the image. Advertisers upload and bid on advertiser-provided images that correspond to advertisements. When an input image is received, such as a result of user interaction with web content or transmission of the image by a user, (e.g., via MMS), the image is matched to an advertiser images, such as via feature-based image matching. An index based upon the features may be used for efficiently locating the advertisement or advertisements. Also described is a tool for advertisers to use in creating a new scene based upon an uploaded image, or for adding the uploaded image to an existing scene. | 08-19-2010 |
Dechao Zhang, Shenzhen CN
| Patent application number | Description | Published |
|---|---|---|
| 20110110663 | METHOD, DEVICE, AND SYSTEM FOR REALIZING POLARIZATION MODE DISPERSION COMPENSATION - A method, device, system for realizing polarization mode dispersion (PMD) compensation are provided. The method for realizing PMD compensation includes: de-multiplexing a polarization-multiplexed optical signal, to obtain a first polarization light and a second polarization light; and joint-equalizing the first polarization light and the second polarization light, to obtain a first equalization signal and a second equalization signal. Since the polarization-multiplexed optical signal is de-multiplexed and then joint-equalized, not only the intra-channel symbol interference but also the inter-channel symbol interference during transmission of the polarization-multiplexed optical signal is eliminated, so as to realize the PMD compensation. | 05-12-2011 |
Dechao Zhang, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20120106963 | System, Method And Relevant Device For Signal Transmission - A system, a method and a related device for signal transmission are provided in order to improve utilization efficiency of the fiber. The system includes an optical line terminal (OLT), a plurality of optical network units (ONU), a base band unit (BBU), a plurality of remote radio units (RRU), a first signal-processing device and a plurality of second signal-processing devices, wherein the first signal-processing device sends a multiplexed signal to a plurality of second signal-processing devices after a plurality of signals sent by the OLT and the BBU are multiplexed, and demultiplexes a signal sent by the second signal-processing device in order to obtain a plurality of signals sent by the ONU and a plurality of different RRUs and sends these demultiplexed signals to the OLT and the BBU; one of a plurality of second signal processing devices sends a multiplexed signal to the first signal-processing device after a plurality of signals sent by the ONU and a plurality of different RRUs are multiplexed, and demultiplexes a signal sent by the first signal-processing device in order to obtain a signal sent by the OLT and a plurality of signals sent to a plurality of different RRUs by the BBU and sends these demultiplexed signals to the ONU and the RRUs. | 05-03-2012 |