Zte Corporation

Huawei Technologies Co., Limited

Maxphotonics Corporation

Other

Maxphotonics Co., Ltd.

Jun Song

Mo Sun

Jianjie You

Pengfei Wang

Feng Bo Jiang

Gaofeng He

Zaifeng Zong

Jinguo Zhu

Xiaoyun Zhou

Xiaobo Hu

Tong Rui

Yuan Yuan

Chaowen Cheng

Ligang Jia

Feng Jiang

Yixin Jiang

Liming Pi

Fengling Chen

Yunhai Qiu

A power conversion circuit includes a first end of a first switch element coupled to an input power supply; a second end of the first switch element coupled to a first end of a first energy storage element, and a first end of a second switch element; a second end of the first energy storage element coupled to ground through a third switch element, and a first end of a fourth switch element; a second end of the second switch element coupled and connected to a battery; a first end of a second energy storage element coupled to two ends of the first energy storage element through a fifth switch element and a sixth switch element; a second end of the second energy storage element coupled to the battery; and a second end of the fourth switch element coupled to the battery.

Power conversion circuit, and charging apparatus and system

A power conversion circuit includes a first switch branch, a second switch branch, a third switch branch, a filter branch, and a first capacitor. A first terminal of the first capacitor is connected to a power source through the first switch branch, and a second terminal of the first capacitor is grounded through the second switch branch. The filter branch includes a filter inductor and a filter capacitor. A first terminal of the filter inductor is connected to the first terminal of the first capacitor, and a second terminal of the filter inductor is connected to a first terminal of the filter capacitor. A second terminal of the filter capacitor is grounded, and the filter capacitor is connected in parallel with the load. The third switch branch is connected between the second terminal of the first capacitor and the second terminal of the filter inductor.

Power conversion circuit and related apparatus and terminal device

The invention provides a charging circuit, comprising a power conversion circuit, and an information collection and signal control circuit. The power conversion circuit is coupled to a voltage source and configured to provide a charging current to a battery. The power conversion circuit comprises a plurality of switch elements, and at least two storage elements, the at least two storage elements are selectively coupled to the voltage source and the output port through the plurality of switch elements. The information collection and signal control circuit is configured to collect information from the voltage source and battery, and control the plurality of switch elements to have the power conversion circuit work under different charging modes.

A voltage converter includes a third switch element and a second energy storage element, and an energy storage circuit comprising a first switch element, a second switch element, and a first energy storage element. In a time period, the first switch element is in an on state, the second switch element and the third switch element are in an off state, and a voltage source coupled to the voltage converter charges the first energy storage element and the second energy storage element, and in a following time period, the first switch element is in an off state, the second switch element and the third switch element are in an on state, the first energy storage element and the second energy storage element discharge to a load coupled to the voltage converter.

Voltage converter, method for controlling voltage converter, and voltage conversion system

Disclosed are a laser marking equipment and system. The equipment includes: a laser marking machine and a control platform. The laser marking machine is controlled by the control platform, the laser marking machine includes: a laser device and a galvanometer, the galvanometer being configured to move at a predetermined moving speed; and the laser device being configured to output laser; the laser marking equipment further includes: a first obtaining module obtaining coordinate and a gray scale value of the target image pixel dot; a first calculation module calculating output power of the target image pixel dot; a second obtaining module obtaining the material information to be marked; a third obtaining module obtaining corresponding material output power; a secondary calculation module calculating an amended output power; and a control module controlling the laser device to output laser specific to each target image pixel dot.

Laser marking equipment and laser marking system

The embodiments of the disclosure provide a correction method for laser marking, comprising: obtaining an image to be marked; in a preset coordinate system of a laser marker, determining a fracture region and a non-fracture region of the image to be marked; correcting the non-fracture region of the image to be marked by using a preset correcting formula; correcting the fracture region of the image to be marked by using a preset standard correction value and a preset weighted coefficient corresponding to coordinate position; and marking with the corrected image to be marked. According to the disclosure, by providing weighted correction for the mark points within the fracture region according to finely divided coordinate positions, the distortion correction for the fracture region can be completed without measuring deviation values of marking region with high density and high precision.

Correction method and device of laser marking

An optical detection device is provided. The detection device includes a light source emitting light rays, a focusing lens, and a sample testing member. The focusing lens refracts the light rays emitting from the light source to a pre-defined area on the sample testing member and focuses light rays diffusely reflected by the sample testing member. The detection device further includes an aperture diaphragm having an aperture. The aperture is configured to allow the focused reflected light rays to pass through. The detection device further includes a photodetector configured to receive the focused reflected rays passing through the aperture.

Diagnostic detection device

Disclosed a laser marking machine, method, equipment and system. The method comprises steps of: the control main board receiving coordinate and gray scale value of the target image pixel dot; calculating output power of the target image pixel dot by using the gray scale value; and controlling the laser device to use corresponding output power according to displacement of the galvanometer, and outputting laser specific to each target image pixel dot. By adjusting the output power of target image pixel dot (marking point), a separate pixel dot may reflect the change of gray scale value, so as to represent the image gray scale value. The coordinate of each pixel dot in the gray scale image may be calculated according to the predetermined resolution, such that, the coordinate of pixel dot is no longer adjusted, ensuring the DPI and the resolution of the gray scale image.

Laser marking machine, laser marking method, laser marking equipment and laser marking system

The present invention discloses a method for controlling a laser marking machine and a laser marking machine. The laser marking machine includes an interface module, a processing module, a laser control module and a galvanometer control module. The interface module receives marking data packets and transfers the marking data packets to the processing module. The processing module parses the marking data packets to obtain marking instructions and control parameters, extracts laser control instruction(s) and galvanometer control instruction(s) from the marking instructions, extracts laser control parameter(s) and galvanometer control parameter(s) from the control parameters, transfers the laser control instruction(s) and the laser control parameter(s) to the laser control module, and transfers the galvanometer control instruction(s) and the galvanometer control parameter(s) to the galvanometer control module.

Method for controlling laser marking machine and laser marking machine

The present invention provides a resource and admission control method applied to nomadicity and wholesale scenarios, which clarifies an interaction process between a PD-FE of a NGN home operator/NGN retail service provider and a PE-FE of a NGN home operator/NGN retail service provider, puts forward a resource request process, resource modification process and resource release process of the resource and admission control method applied to the nomadicity and wholesale scenarios, and solves problems existing in the related art.

Resource and admission control method

The present invention discloses a method for selecting a policy and charging rules function server in a non-roaming scenario to achieve that the PCC policies for each IP-CAN session are determined only by one PCRF. The method comprises of a Diameter Routing Agent (DRA) establishing an association relationship table in which IP Connectivity Access Network (IP-CAN) session information and corresponding address information of a Policy and Charging Rules Function (PCRF) server are stored; and when a Policy and Charging Enforcement Function (PCEF) entity and a Gateway Control Function Entity (GWCF) requests the PCRF for or to update a Policy and Charging Control (PCC) policy of one IP-CAN session, or when an Application Function (AF) entity sends application information or service information down to the PCRF, obtaining the address information of the PCRF associated with said IP-CAN session from said DRA, then performing subsequent processing.

Method for selecting a policy and charging rules function server on a non-roaming scene

The present invention discloses a method for an interaction between resource and admission control systems and a resource and admission control system, the method includes: a resource and admission control function in a fixed network receiving a request message transmitted by a Policy and Charging Rule Function (PCRF) in a mobile network, and converting the request message or parameters carried in the request message into a form that can be processed or identified by a transport functional entity in the fixed network. The technical scheme of the present invention complies with the development trend of the future network, and is simple and practical.

Method for interaction between resource and admission control systems and resource and admission control system

The present invention provides an interworking functional entity and a protocol mapping method of the interworking functional entity. The interworking functional entity includes: a first receiving module, configured to receive an Rp reference point protocol message from a top-tier transport resource control functional entity; a first protocol converting module, configured to convert the Rp reference point protocol message into an access node control protocol (ANCP) message; and a first sending module, configured to send the ANCP message obtained by conversion to a co-located transport resource control functional entity arranged in an access node. The technical solution provided by the present invention can solve the problem of interaction among a plurality of transport control functional entities under the case that the plurality of transport control functional entities are cooperatively responsible for the user resource management.

Interworking functional entity and protocol mapping method thereof

An apparatus for implementing policy control for home gateway comprises a Co-located Policy Decision Function Entity (PD-FE) for receiving the QoS policy issued by the PD-FE at network side and sending the QoS policy to the home gateway or issuing the QoS policy configured thereon to the home gateway. A method for implementing the policy control for home gateway, the method comprises: the Co-located PD-FE receiving the QoS policy issued by the PD-FE at network side or being configured with the QoS policy; and the Co-located PD-FE issuing the QoS policy to home gateways. With the present invention, the Resource and Admission Control Function (RACF) avoids controlling the home gateway directly or sending the policy to the home gateways in the case that there are a lot of home gateways and all the home gateways are scattered at the edge of the network.

Growing community of inventors

Shenzhen, China

Jun Song