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Chai, Beijing

Haixin Chai, Beijing CN

Patent application numberDescriptionPublished
20090243542INTEGRATED POWER ADAPTER FOR A LAPTOP - A power pack arrangement for a laptop computer, wherein an AC/DC adapter is integrated with a battery pack to form one cohesive unit freely insertable into and removable from a laptop computer housing.10-01-2009
20090300710UNIVERSAL SERIAL BUS (USB) STORAGE DEVICE AND ACCESS CONTROL METHOD THEREOF - The invention provides a USB storage device and an access control method thereof. An access control module is provided on the USB storage device. The storage space is divided into at least one data storage entity. Each user's access right to each data storage entity is set and stored in the USB storage device as an access control list. The process between the USB storage device's being connected with a USB host and its being disconnected from the USB host is one session. When a session is established, the user provides authentication information for the USB device to authenticate him/her, and saves the user information used in the current session. In the current session, when the host of the user issues an access request for the data storage entity on the USB storage device, the access control module queries the access right list based on the user information in the current session to determine whether the user has an access right to the requested data storage entity. When the user does not have the access right to the data storage entity, the access control module denies the user's access request for the data storage entity.12-03-2009

Patent applications by Haixin Chai, Beijing CN

Hai Xin Chai, Beijing CN

Patent application numberDescriptionPublished
20080270139Converting text-to-speech and adjusting corpus - The present invention provides a method and apparatus for text to speech conversion, and a method and apparatus for adjusting a corpus. The method for text to speech comprises: text analysis step for parsing the text to obtain descriptive prosody annotations of the text based on a TTS model generated from a first corpus; prosody parameter prediction step for predicting the prosody parameter of the text according to the result of text analysis step; speech synthesis step for synthesizing speech of said text based on said the prosody parameter of the text; wherein descriptive prosody annotations of the text include prosody structure for the text, the prosody structure of the text is adjusted according to a target speech speed for the synthesized speech. The present invention adjusts the prosody structure of the text according to the target speech speed. The synthesized speech will have improved quality.10-30-2008

Patent applications by Hai Xin Chai, Beijing CN

Honggang Chai, Beijing CN

Patent application numberDescriptionPublished
20110113281DATA STORAGE SYSTEM AND METHOD - A data storage system and method are disclosed. The data storage system includes a first memory, a controller, a counting module, and a checking and correcting module. Copyback operations are performed in the first memory. The controller couples the first memory to the counting module and the checking and correcting module. The counting module provides a counting operation for the copyback operations at different logic addresses of the first memory and, according to a counting result of the counting operation, determines whether a checking and correcting requirement has been satisfied by any of the logic addresses. The checking and correcting module receives data read out from the first memory, wherein the received data corresponds to a satisfying logic address, and checks, or checks and corrects the received data to correct the first memory accordingly.05-12-2011

Li Chai, Beijing CN

Patent application numberDescriptionPublished
20120100855Handover Control Method, Apparatuses and Communication System - A handover control method, apparatuses and a communication system are disclosed. In embodiments of the present invention, a control base station (DeNB) of a Relay node is identified according to an established relation between the Relay node and the Control base station, and therefore, a handover request message can be routed to the correct DeNB and finally sent to the RN, and a User Equipment can normally hand over to a cell controlled by the Relay node.04-26-2012

Peng Chai, Beijing CN

Patent application numberDescriptionPublished
20120095562ARTIFICIAL DISC - An artificial intervertebral disc includes an upper joint (04-19-2012

Xiujuan Chai, Beijing CN

Patent application numberDescriptionPublished
20090167760Triangle Mesh Based Image Descriptor - Embodiments are directed to creating a triangle mesh by using a distance-minimum criterion on a plurality of feature points detected from an image, computing, based on the triangle mesh, global features that describe a global representation of content of the image, and computing, based on the triangle mesh, local features that describe a local representation of content of the image. The global features may include a triangle distribution scatter of mesh that shows a texture density of the content of the image and a color histogram of mesh region that represents image color information corresponding to a mesh region of interest. The local features may include a definition of each mesh triangle shape via its three angles and a color histogram of each mesh triangle to represent image color information corresponding to each triangle region.07-02-2009
20100104134Interaction Using Touch and Non-Touch Gestures - A computer interface may use touch- and non-touch-based gesture detection systems to detect touch and non-touch gestures on a computing device. The systems may each capture an image, and interpret the image as corresponding to a predetermined gesture. The systems may also generate similarity values to indicate the strength of a match between a captured image and corresponding gesture, and the system may combine gesture identifications from both touch- and non-touch-based gesture identification systems to ultimately determine the gesture. A threshold comparison algorithm may be used to apply different thresholds for different gesture detection systems and gesture types.04-29-2010
20100166258METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PROVIDING HAND SEGMENTATION FOR GESTURE ANALYSIS - A method for providing hand segmentation for gesture analysis may include determining a target region based at least in part on depth range data corresponding to an intensity image. The intensity image may include data descriptive of a hand. The method may further include determining a point of interest of a hand portion of the target region, determining a shape corresponding to a palm region of the hand, and removing a selected portion of the target region to identify a portion of the target region corresponding to the hand. An apparatus and computer program product corresponding to the method are also provided.07-01-2010

Zhuoyuan Chai, Beijing CN

Patent application numberDescriptionPublished
20080201486Dynamic system and method for virtual private network (VPN) packet level routing using dual-NAT method - A system and method for virtual private network (VPN) packet level routing using a Dual-NAT architecture to provide a bidirectional secure connection between applications, hosts, or networks at any two end sites without exposing each other's actual IP addresses and network topologies. The method includes providing a client a list of available resources on a remote network; initiating a request by the client for at least one resource from the list of available remote resources as though the at least one resource is local to the client; NATting the source and destination IP addresses to a pair of client and resource Dynamic VPN (DVPN) addresses; routing the request to the remote network; NATting the client and resource DVPN addresses to local IP addresses on the remote network; issuing the request to the at least resource; and NATting/routing the response using the reverse process.08-21-2008