Kecheng
Kecheng Liu, Zhejiang Hangzhou CN
Patent application number | Description | Published |
---|---|---|
20130251225 | Motion Compensated MR Imaging System - A method provides motion corrected MR image data in an MR imaging system. The method employs an imaging method for acquiring k-space data of a k-space data array during an imaging scan and the k-space data represents image data of a patient anatomical region. The method acquires k-space data associated with a central region of the k-space data array and subsequently acquires k-space data external to the central region of the k-space data array. The method acquires a motion signal indicating respiratory motion at least during the acquisition of the k-space data external to the central region and compares the motion signal with a predetermined threshold. The method identifies acquired k-space data corresponding to acquisition periods when the motion signal exceeds the threshold and excludes use of the identified acquired k-space data in image reconstruction using the remaining acquired k-space data. | 09-26-2013 |
20130301892 | Metallic Object MR Imaging Quality Control System - A system assesses quality of an image of human anatomical components in the presence of a metallic object. The system comprises an image processor for selecting an imaging protocol to use in imaging a test unit in response to data indicating a metal type employed in the test unit. The test unit includes, at least one object of the metal type used for a medical implant, an object comprising water and an object representing human fat. The water object and fat object are less than 3 centimeters, for example, distant from the metal object. | 11-14-2013 |
Kecheng Liu, Solon CN
Patent application number | Description | Published |
---|---|---|
20140021951 | System for Reducing Artifacts in Imaging in the Presence of a Spin-lock Radio-Frequency Field - A system acquires MR image data of a portion of patient anatomy associated with spin lattice relaxation time in a rotating frame using an RF (Radio Frequency) signal generator and a magnetic field gradient generator. The RF (Radio Frequency) signal generator generates RF excitation pulses in anatomy and enables subsequent acquisition of associated RF echo data. The magnetic field gradient generator generates anatomical volume select magnetic field gradients for phase encoding and readout RF data acquisition in a three dimensional (3D) anatomical volume. The RF signal generator and the gradient generator use in order, a saturation pulse, a T1 spin lattice relaxation rotating frame preparation pulse sequence and a spoiler gradient, in acquiring image data of the 3D volume showing luminance contrast associated with T1 spin lattice relaxation in a rotating frame. | 01-23-2014 |
Kecheng Wang, College Station, TX US
Patent application number | Description | Published |
---|---|---|
20150152123 | Aluminum Metal Organic Framework Materials - The invention relates to monocrystalline single crystals of metal-organic framework materials comprising at least one aluminium metal ion, processes for preparing the same, methods for employing the same, and the use thereof. The invention also relates to monocrystalline aluminium metal-organic frameworks. | 06-04-2015 |
Kecheng Xie, Shenzhen CN
Patent application number | Description | Published |
---|---|---|
20150248029 | LIQUID CRYSTAL DRIP IRRIGATION DEVICE - The present invention relates to a liquid crystal drip irrigation device, comprising a duct container, in which a plurality of liquid crystal ducts are arranged. The liquid crystal ducts pass through the duct container from top end surface to bottom end surface of the duct container. A baffle is appressed to the bottom end surface of the duct container. A plurality of through holes corresponding to the liquid crystal ducts in positions are formed on the baffle. The bottom end surface of the duct container is provided with a first actuator and the baffle is provided with a second actuator. The first actuator and the second actuator drive the baffle to move relative to the duct container. | 09-03-2015 |
Kecheng Xie, Shenzhen, Guangdong CN
Patent application number | Description | Published |
---|---|---|
20160107922 | BUFFERING STRUCTURE AND CLAMPING DEVICE USING SAME - The present invention discloses a buffering structure includes at least two buffering layers connected with each other. The buffering layers are made of resilient material, and at least one of the buffering layers defines a number of hollow units therein. | 04-21-2016 |
Kecheng Yu, Shenzhen CN
Patent application number | Description | Published |
---|---|---|
20140105116 | Method and Apparatus for Exchanging Wireless Network Management Message - A method for exchanging a wireless network management message includes: an access point device receives a terminal management message sent by a terminal, and in a contention-free period, sends a management polling frame to the terminal. After receiving, in a contention-free period, the management polling frame sent by the access point device, the terminal sends a next terminal management message to the access point device. The embodiments of the present invention further provide an access point device and a terminal for exchange a wireless network management message. Because the access point device controls the terminal to send a wireless network management message in a contention-free period, a problem of a conflict in a contention period among a plurality of terminals that have accessed a network is avoided, thereby decreasing time for a terminal to access a network. | 04-17-2014 |
20140105163 | Communication Method and Apparatus - The present invention discloses a communication method and apparatus. The method includes: an antenna extending apparatus receives a communication request from a mobile terminal; establishes an Internet Protocol (IP) tunnel with the mobile terminal according to the communication request; receives terminal information sent through the IP tunnel by the mobile terminal; completes, according to the terminal information, an initial connection process with a base station covering an area where the antenna extending apparatus is located; and forwards a packet between the mobile terminal and the base station, so that the mobile terminal is capable of communicating with the base station through the antenna extending apparatus. In the present invention, no complicated technology of interaction between heterogeneous networks needs to be used, communication quality is improved, and the problem that a mobile terminal, after being abroad, cannot directly interact with a domestic base station is solved. | 04-17-2014 |
20140119543 | METHOD FOR UPDATING GROUP TEMPORAL KEY, RELATED APPARATUS AND SYSTEM - Embodiments of the present invention disclose a method for updating a group temporal key, a related apparatus and system. A method includes: An access point AP sets an updating period of a group temporal key GTK; the access point updates the GTK whenever the updating period of the GTK arrives; the access point receives a GTK request that is sent by a mobile station STA in an association list within a preset delay time period after arrival of the updating period of the GTK, where the association list records all mobile stations communicating with the access point, and the preset delay time period is shorter than the updating period of the GTK; and when the preset delay time period after the arrival of the updating period of the GTK arrives, the access point sends the updated GTK to the mobile station in the association list according to the GTK request. | 05-01-2014 |