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Tu, Shenzhen

Boyan Tu, Shenzhen CN

Patent application number	Description	Published
20080320188	Method And Apparatus For Backing Up TCP Connection - A method for backing up a TCP connection includes a data transmission process and a data receiving process. The data transmission process includes obtaining, by an AMB of a transmitting end, boundary information of data; and backing up the data and the boundary information of the data to a SMB of the transmitting end. The data receiving process includes backing up, by the SMB, data received from a peer side of the TCP connection and the boundary information of the data received by the peer side to the AMB; and deleting the data received by the peer side from the data backed up by the SMB during the transmission process according to the boundary information of the data received by the peer side. The disclosure also provides an apparatus for backing up a TCP connection.	12-25-2008
20090213862	METHOD AND SYSTEM FOR MIGRATING A PEER IN A DISTRIBUTED BGP SYSTEM - A method for peer migration in a distributed Border Gateway Protocol (BGP) system includes: disconnecting a peer relationship between a source BGP process and a network device, wherein first routing information received from the network device is recorded in a forwarding instruction process; establishing a peer relationship between a target BGP process and the network device, and receiving second routing information from the network device; and updating the first routing information recorded in the forwarding instruction process according to the second routing information.	08-27-2009
20090219931	METHOD AND SYSTEM FOR SYNCHRONIZATION OF PACKET - A message synchronization demarcation method includes: a backup board receives a message of an opposite terminal from an interface board; the message is copied to a main board; the main board processes the message, copies it to the backup board through the buffer unit and transmits the data. Also a message synchronization demarcation system is provided. The data backup between the main board and the backup board is performed through the buffer area without occupying the transport layer resource, so the data flux of communication channels is reduced, the payload is lowered, and the backup steps of messages between the main board and the backup board is simplified. Using the present disclosure, the received message can be demarcated, and the accuracy of message transmission is further improved.	09-03-2009
20100058315	METHOD AND SYSTEM FOR PROCESS UPGRADE - A method and a system for process upgrade are disclosed. A source process implements data interaction, via a socket interface, with a far end entity connected with the socket interface. When the source process intends to upgrade itself, the source process copies its process data to a target process and determines if the data from the far end entity received via socket interface is complete. If it is determined that the data is complete, the source process ceases data interaction with the socket interface and copies the received data to the target process. After the data is copied, the source process sends an upgrade and switch indication to the target process and enables the target process to send an upgrade and switch request to the socket interface. The socket interface then switches a socket interface service to the target process. Accordingly, the technical solutions according to the present invention realize a reliable and smooth process upgrade without disconnecting the socket connection.	03-04-2010

Feng Tu, Shenzhen CN

Patent application number	Description	Published
20110177712	CAMERA APPARATUS, PORTABLE ELECTRONIC DEVICE USING THE CAMERA APPARATUS AND METHOD OF ASSEMBLING THE PORTABLE ELECTRONIC DEVICE - A camera apparatus attached to a portable electronic device includes a camera module, a holder, and a PCB. The holder includes a socket and a resisting member secured in the socket. The PCB includes a contact portion. The contact portion and the camera module are received in the socket. The resisting member pushes the contact portion toward the camera module.	07-21-2011

Jia-Hui Tu, Shenzhen CN

Patent application number	Description	Published
20090168463	DC TO DC CONVERTER - An exemplary DC to DC converter includes a first transistor, a second transistor, a transformer, and a pulse generating circuit having a first capacitor, a sampling resistor, a zener diode, and a first diode. A DC voltage input terminal is configured for receiving a first DC voltage and is grounded via the primary winding of the transformer, a collector electrode and an emitter electrode of the first transistor in series. A terminal of the auxiliary winding of the transformer is grounded via the inverted first diode, the non-inverted zener diode, the sampling resistor, and the first capacitor. The other terminal of the auxiliary winding is grounded. A first transistor having a base electrode connected to the DC voltage input terminal. A second transistor includes an emitter electrode a cathode of the zener diode, a collector electrode connected to a base electrode of the first transistor, and a grounded base electrode.	07-02-2009

Jianping Tu, Shenzhen CN

Patent application number	Description	Published
20110135017	METHOD, SYSTEM, AND DEVICE FOR POWER OPTIMIZATION BASED ON DIGITAL SUBSCRIBER LINE - A method, system, and device for power optimization based on Digital Subscriber Line (DSL) are provided. The method includes the following steps. Service information of a subscriber is collected, and physical layer target parameters are obtained according to Quality of Experience (QoE) parameters corresponding to the service information. Line running information of the subscriber is received. The physical layer target parameters and the line running information are used as input parameters of a power optimization algorithm, and an optimized power spectrum is obtained through the power optimization algorithm. Therefore, a DSL network is optimized according to the QoE, and subscriber's experience is improved. Moreover, a least power method is adopted to optimize a transmit power spectrum, and the total power consumption and crosstalk between different DSL signals are reduced while meeting the QoE, so that the signal transmission of the system is stable, and the service transmission quality is improved.	06-09-2011

Minhai Tu, Shenzhen CN

Patent application number	Description	Published
20090232493	WAVELENGTH DRIFT DETECTING APPARATUS, WAVELENGTH LOCKING SYSTEM AND METHOD - An apparatus for detecting wavelength drift and a system and method for locking wavelengths are disclosed herein so that multiple optical modules can share a wavelength locking apparatus without any wavelength selecting module. The output signals of only one optical module are scrambled at a time, and the identifier information carried in the optical signals output by different optical modules is the same, for example, the same frequency is applied to scrambling of every optical signal. Therefore, the scrambling apparatus is simplified, and the interference between scrambling signals is eliminated. Because no mechanical or electrical apparatus is used for controlling the wavelength switching, the cost is reduced, the locking speed is increased, the accuracy of signal processing is improved, and the precision of wavelength locking is enhanced.	09-17-2009

Yajun Tu, Shenzhen CN

Patent application number	Description	Published
20090169352	DYNAMIC ITEM-SPACE ALLOCATION AND RETRIEVAL - Embodiments of the present invention address deficiencies of the art in respect to staging manufactured items and provide a method, system and computer program product for staging items in a manufacturing environment. In an embodiment of the invention, a method for staging items in a manufacturing environment can be provided. The method can include defining attributes of staging locations in a distribution area of the manufacturing environment, defining a set of staging strategies for use in the distribution area of the manufacturing environment, receiving a manufactured item in the distribution area and obtaining characteristics of the manufactured item, comparing the obtained characteristics of the manufactured item to the set of staging strategies to select the staging strategy to apply to the manufactured item and applying the selected staging strategy to the manufactured item to assign the manufactured item to storage in one of the staging locations in the distribution area based on matching the obtained characteristics of the manufactured item to the defined attributes of the one of the staging locations. The method can further include the retrieval of the manufactured item from the staging location at the appropriate time to allow for subsequent processing or shipment, and may include multiple iterations of the staging-retrieval process as required by the particular implementation.	07-02-2009

Yong-Bo Tu, Shenzhen CN

Patent application number	Description	Published
20080309098	SWITCH ASSEMBLY AND FOLDABLE PORTABLE ELECTRONIC DEVICE USING SAME - A switch assembly (	12-18-2008

Yongfeng Tu, Shenzhen CN

Patent application number	Description	Published
20090116486	METHOD AND APPARATUS FOR OBTAINING AN ATTENUATION FACTOR - The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a signal; obtaining an attenuation factor, according to the change trend of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.	05-07-2009
20090119098	SIGNAL PROCESSING METHOD, PROCESSING APPARATUS AND VOICE DECODER - The present invention discloses a signal processing method adapted to process a synthesized signal in packet loss concealment. The method includes the following steps: receiving a good frame following a lost frame, obtaining an energy ratio of energy of a signal in the signal of the good frame signal to energy of a synthesized signal corresponding to the same time of the good frame, and adjusting the synthesized signal in accordance with the energy ratio. The present invention also discloses a signal processing apparatus and a voice decoder. Through using the method provided by the present invention, the synthesized signal is adjusted in accordance with the energy ratio of the energy of the first good frame following the lost frame to the energy of the synthesized signal to ensure that there be not a waveform sudden change or an energy sudden change at the place where the lost frame and the first good frame following the lost frame are jointed in the synthesized signal, to realize the waveform's smooth transition and to avoid music noises.	05-07-2009
20090292542	SIGNAL PROCESSING METHOD, PROCESSING APPARTUS AND VOICE DECODER - The present invention discloses a signal processing method adapted to process a synthesized signal in packet loss concealment. The method includes the following steps: receiving a good frame following a lost frame, obtaining an energy ratio of energy of a signal in the signal of the good frame signal to energy of a synthesized signal corresponding to the same time of the good frame; and adjusting the synthesized signal in accordance with the energy ratio. The present invention also discloses a signal processing apparatus and a voice decoder. Through using the method provided by the present invention, the synthesized signal is adjusted in accordance with the energy ratio of the energy of the first good frame following the lost frame to the energy of the synthesized signal to ensure that there be not a waveform sudden change or an energy sudden change at the place where the lost frame and the first good frame following the lost frame are jointed in the synthesized signal, to realize the waveform's smooth transition and to avoid music noises.	11-26-2009
20090316598	METHOD AND APPARATUS FOR OBTAINING AN ATTENUATION FACTOR - The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a pitch of a signal; obtaining an attenuation factor, according to the change trend of the pitch of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.	12-24-2009

Yue Tu, Shenzhen CN

Patent application number	Description	Published
20090069012	METHOD AND APPARATUS FOR CELL HANDOFF - A method for handoff between cells in a communication system includes the network sends a cell individual offset preset for a cell in the active set relative to each of its neighboring cells respectively to a terminal; after measuring the cell in the active set and its neighboring cells, the terminal evaluates the measurement in accordance with the measurement result and the cell individual offset for the cell in the active set relative to its each neighboring cell; the terminal then submits a measurement report to the network in accordance with the measurement evaluation result; the network instructs the terminal to perform a handoff between cells in accordance with the measurement report. The invention also discloses a network controller and a terminal corresponding to the method. With the invention, the cell individual offset for a cell is set relative to its each neighboring cell so that the handoff between cells can be more accurate. As a result, user of the terminal can obtain better experience.	03-12-2009