Guangsheng
Guangsheng Chen, Shanghai CN
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20130003792 | RECEIVING CIRCUIT, TRANSMITTING CIRCUIT, MICRO-CONTROLLER AND METHOD FOR POWER LINE CARRIER COMMUNICATION - A receiving circuit, a transmitting circuit, a micro-controller, and a method for power line carrier communication. The receiving circuit includes: an analog amplifier, a receiving filter, an analog-to-digital converter, a digital mixer, a digital filter, and a digital demodulator connected successively. The transmitting circuit includes: a digital modulator, a gain controller, a digital-to-analog converter, a transmitting filter, and a transmitting amplifier connected successively. The micro-controller includes a central processor and the receiving circuit or the transmitting circuit. The method for power line carrier communication can be implemented based on the receiving circuit or the micro-controller. The receiving circuit, the transmitting circuit, the micro-controller, and the method for power line carrier communication provided by present invention solve the defect of supporting only one modulation or demodulation mode in a conventional power line carrier communication system, and can process a power line carrier signal in different modulation or demodulation modes. | 01-03-2013 |
Guangsheng Liu, Shenzhen CN
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20120155721 | Fingerprint Identification Data Card and Electronic Device - A fingerprint identification data card and an electronic device are provided. The data card includes a case, a circuit board located in the case, an interface, and a fingerprint identifier. The case has a hole, the interface passes through the hole and the interface is connected with the circuit board, and the fingerprint identifier is disposed in the case and is connected with a processor on the circuit board in the case. It can be seen that, before using the data card, a user is required to input a fingerprint through the fingerprint identifier, and the user can use the data card only after passing authentication. | 06-21-2012 |
20120225569 | ELECTRONIC APPARATUS WITH PLUG - An electronic apparatus with a plug is provided, which relates to the field of electronic technologies, and solves a technical problem of the plug is easily damaged when the plug in a state of extending out of a port is impacted by a force in a direction in which the plug retracts into the port. The electronic apparatus with a plug includes a housing opened with a port, a plug passing through the port, and a circuit board located inside the housing and electrically connected to the plug, where a locking mechanism is disposed between the plug and the housing, the locking mechanism is configured to lock the plug when the plug is in a state of extending out of the port, and the locking mechanism automatically becomes ineffective when the plug is impacted by the force in the direction in which the plug retracts into the port. | 09-06-2012 |
20140111961 | Wireless Broadband Device - A wireless broadband device includes: a main body and an end cover, where the main body and the end cover are assembled to form a whole; a first battery is carried in the main body and configured to supply power to a circuit of the main body; a second battery is built in the end cover, where a power output contact of the second battery emerges from an inner side of the end cover; the inner side of the end cover contacts the main body; and the power output contact of the second battery contacts an exposed power input contact point of the circuit of the main body, and when an output voltage of the first battery is smaller than the minimum required voltage for supplying power to the circuit of the main body, the circuit of the main body switches to the second battery for power supply. | 04-24-2014 |
Guangsheng Song, Springvale AU
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20130199677 | MAGNESIUM-BASED ALLOY FOR WROUGHT APPLICATIONS - An improved magnesium-based alloy for wrought applications is disclosed, including a method of fabricating alloy sheet from said alloy. The improved magnesium-based alloy consists of: 0.5 to 4.0% by weight zinc; 0.02 to 0.70% by weight a rare earth element, or mixture of the same including gadolinium; and incidental impurities. The rare earth clement in some embodiments may be yttrium and/or gadolinium. In some embodiments the magnesium-based alloy may also consist of a grain refiner and in some embodiments the grain refiner may be zirconium. In combination, the inclusion of zinc and a rare earth element, into the magnesium alloy may have enhanced capacity for rolling workability, deep drawing at low temperatures and stretch formability at room temperature. The improved alloy may also exhibit increased tensile strength and formability while evincing a reduced tendency for tearing during preparation. | 08-08-2013 |
Guangsheng Wu, Shenzhen CN
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20140304500 | Authentication and Initial Key Exchange in Ethernet Passive Optical Network over Coaxial Network - A method comprising generating an updated security key upon expiration of a key exchange timer, transferring the updated security key to a Coaxial Network Unit (CNU), retaining an original key, wherein the updated security key comprises a different key identification number than the original key, accepting and decrypting upstream traffic that employs either the original key or the updated key, after transferring the updated security key to the CNU, creating a key switchover timer, before the key switchover timer expires, verify that upstream traffic transferred from the CNU on a logical link uses the updated security key, and when upstream traffic is encrypted using the updated security key, begin using the updated security key to encrypt downstream traffic and clear the key switchover timer. | 10-09-2014 |
20140365768 | Extending Data Over Cable Service Interface Specification (DOCSIS) Provisioning of Ethernet Passive Optical Network (EPON) (DPoE) to EPON over Coax (EPoC) Multicast Key Management - Disclosed herein are mechanisms to support the management of multicast keys for a multicast group comprising one or more optical line terminals (OLTs), one or more fiber to coax units (FCUs), and a plurality of coax network units (CNUs). The disclosed embodiments may support the management of multicast keys over optical and coaxial networks. In some embodiments, an FCU may facilitate communication of operations administration and maintenance (OAM) messages containing multicast keys from one or more OLTs to one or more CNUs (typically a plurality of CNUs). Some embodiments may employ one multicast key over both the optical network and coaxial network. Other embodiments may employ an optical domain multicast key over the optical network and an electrical domain multicast key over the coaxial network. Embodiments may comprise adding a first CNU to a multicast group as well as adding subsequent CNUs to the multicast group. | 12-11-2014 |
Guangsheng Wu, Shenzhen City CN
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20150046966 | CABLE TV NETWORK BROADBAND ACCESS SYSTEM WITH DISTRIBUTED DEPLOYMENT AND CENTRALIZED CONTROL - The present invention provides a cable TV broadband access system with distributed deployment and centralized control, which comprises: a system terminal end, configured to receive and transmit uplink and downlink service data, and receive and respond to access control data and management control data; a system access end, configured to implement data format transformation and data forwarding or processing for said uplink and downlink service data, said access control data and said management control data of said system terminal end, and transmit, receive and respond to management control data of said system access end; a system head end, configured to implement management control and access control for said system access end and said system terminal end, and process, converge and forward said uplink and downlink service data. Said system uses a system architecture with three-stage distributed deployment and centralized control comprising a system terminal end, a system access end and a system head end, and it can not only realize the end-to-end control management and QoS priority assurance of the broadband data service, but can also realize easy network deployment, low comprehensive cost and high management efficiency. | 02-12-2015 |