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Dongsheng
Dongsheng Li, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20090013180 | Method and Apparatus for Ensuring the Security of an Electronic Certificate Tool - The present invention discloses a method and apparatus for ensuring the security of an electronic certificate tool, the method comprising: A: inputting business information by using the input or confirmation function set up in the electronic certificate tool; and step B: encrypting, attaching signature to or/and authenticating the inputted business information by the electronic certificate tool and sending the processed business information over the Internet via a computed connected to the Internet to make business dealing or/and payment. The method and apparatus ensure the security of the electronic certificate tool and are convenient and easy to use. | 01-08-2009 |
| 20100313028 | Electronic Signature Method and Electronic Signature Tool - The present invention provides an electronic signature method and an electronic signature tool. The method includes: outputting verification prompt information; receiving verification confirmation information inputted by a user; checking whether the verification confirmation information matches the verification prompt information, and performing the predetermined electronic signature operation if the verification confirmation information matches the verification prompt information. Through the electronic signature method and the electronic signature tool of the present invention, an attack of other users on the network can be prevented, secure transactions are realized. The method and the tool are used conveniently and can be popularized easily. | 12-09-2010 |
Dongsheng Wang, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20100282542 | Valve-type oil feeder - A valve-type oil feeder comprising a housing, a valving spindle, and a piston. The housing has a valve chamber and a piston chamber, the valve chamber has an oil inlet, a first outlet, and a second outlet; the piston chamber has an oil intake chamber, an oil discharge chamber, and an oil outlet; the oil intake chamber communicates with the second outlet, and the oil discharge chamber communicates with the first outlet and the oil outlet respectively; the valving spindle is arranged in the valve chamber and movable between an original position at which the oil inlet is cut off from the second outlet while the first outlet communicates with the second outlet, and a working position at which the oil inlet communicates with the second outlet while the first outlet is cut off from the second outlet The present invention is applicable to various fluid and semi-fluid media, and applicable to various pressure and viscosity ranges. By controlling the operation of the valving spindle, lubricant can be supplied conveniently as necessary, and the delivery quantity of lubricant can be adjusted easily; moreover, the valve-type oil feeder is characterized in simple structure, wide application range, low production cost, and reliable operation. | 11-11-2010 |
Dongsheng Wen, London GB
| Patent application number | Description | Published |
|---|---|---|
| 20090320476 | CRYOGENIC ENGINES - Slush gas, i.e. a gas or a mixture of gases cooled so that it is partially solid and partially liquid is employed as a drive fluid in a cryogenic engine. A cryogenic engine has a working chamber ( | 12-31-2009 |
Dongsheng Wu, Hainesport, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090115903 | AUDIO/VIDEO SEPARATOR - An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF components. The apparatus may operate on a digitized TV signal and, when integrated with a digital video processor, process video signals while separating audio signals. The resultant audio and video signals may be considered to have excellent signal quality due to highly optimized demodulation architecture and digital signal processing techniques on both audio and video data paths. | 05-07-2009 |
| 20100045871 | VIDEO LUMINANCE CHROMINANCE SEPARATION - The invention provides techniques for separating luma and chroma signal components in a composite SECAM video signal. During reception, the SECAM video signal is split into luma and chroma output. The amplitude of the chroma carrier is monitored during reception. If the chroma carrier amplitude is greater than a threshold, the value of the chroma output can be reduced. Also, if the chroma carrier amplitude is greater than another threshold, a portion of the chroma carrier can be added to the luma; or the trap band of the band-trap filter for extracting luma from the composite video can be reduced. The respective amount of the reduction in the chroma output and the increase in the luma output are independently determined but both may proportional to the magnitude of the deviation in the chroma carrier amplitude from the different thresholds. | 02-25-2010 |
| 20110051005 | Method And Apparatus For Integrated Motion Compensated Noise Reduction And Frame Rate Conversion - A video processing system may receive a current raw video frame and may estimate motion between the current frame and a previous frame to determine motion vectors (mv). Based on the same mvs, motion compensated (MC) noise reduction may be performed and MC frame rate conversion (FRC) may generate a new frame. The previous frame may be noise reduced and/or a raw video frame. A MC frame may be generated based on the previous video frame and the mvs. Noise reduction may comprise blending the current raw frame with the MC frame. A blending factor may be determined based on similarity between pixels of the current video frame and MC pixels of the previous frame. The mvs may be scaled for FRC. Noise reduction may be performed in parallel and/or prior to the FRC depending on whether raw or noise reduced frames are utilized. | 03-03-2011 |
Dongsheng Zhang, Beijing CN
| Patent application number | Description | Published |
|---|---|---|
| 20100149841 | POWER FEEDBACK DEVICE - The present invention relates to a power feedback device, including: an AC input power source, which is three-phase or multi-phase AC, or three-phase or multi-phase AC in which the output terminal is connected in series with an inductor, for generating power; a plurality of power converting units, the input terminals of which are respectively connected with two phases of the AC input power source, for power converting the two phases of AC generated by the AC input power source respectively; an isolating transformer, the primary side of which is a three-phase winding and connected with a power network, the secondary side of which is multi-path of three-phase windings and connected with the output terminals of the plurality of power converting units, for feeding the AC converted by the plurality of power converting units back to the power network. The power feedback device according to the present invention can improve the waveform coefficients of the current of the power generation device, and increase the power factors and the utilization rate of the device, and also, the device matches power networks of different voltage levels, thereby improving the waveform coefficients of the current fed back to the power networks and lowering harmonic component. | 06-17-2010 |