Patents by Inventor Xiangyu Wang

Xiangyu Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140300276
    Abstract: A lighting system that includes luminaires (1,2,3,4,5) installed at individual locations (R1-5) in premises, is commissioned by placing auxiliary commissioning devices (6) in the premises at spaced apart locations and forming them into a wireless local network. The auxiliary commissioning devices each include a sensor (13) to detect light from the luminaires, establishing the locations of the auxiliary commissioning devices in relation to the premises, for example by using ranging on the basis of signal strengths of the devices (6) in the local network, and detecting light emitted from the luminaires individually with the sensors (13) of the auxiliary commissioning devices such as to associate the luminaires with individual ones of the commissioning devices.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 9, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventor: Xiangyu Wang
  • Publication number: 20140232299
    Abstract: A network switch (5) for example a PoE switch, is operable to control supply of electrical power to individual luminaires (1,2) in a lighting network. The luminaires receive both electrical power for operation and signals to switch on and off through a common cable connection (9) such as an Ethernet connection. When switched on, each luminaire sends a signal repeatedly towards the Po E switch until switched off and the switch (5) supplies power to the luminaire whilst successive signals are received within a period less than a predetermined shut off period (?). In this way, power to the luminaire can be disconnected to avoid comsumption of standby power when not in use.
    Type: Application
    Filed: October 5, 2012
    Publication date: August 21, 2014
    Applicant: KONINKIIJKE PHILIPS N.V.
    Inventor: Xiangyu Wang
  • Publication number: 20130315220
    Abstract: The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 28, 2013
    Applicant: Koninklijke Philips N.V.
    Inventors: Xiangyu Wang, John-Paul Marie Gerard Linnartz, Patrick Van Kooten
  • Publication number: 20130240761
    Abstract: A self-focusing radioactive source device and a radiating apparatus employing the same are disclosed. The self-focusing radioactive source device includes: a source capsule; a source body disposed in the source capsule; and M radioactive sources arranged in the source body, wherein radioactive rays emitted from the M radioactive sources in the source capsule are focused on a common focus, and wherein M is a natural number greater than 1. The self-focusing radioactive source device and the radiating apparatus can greatly reduce the volume and weight of the source body, obtain a small penumbra and small focus radius, and provide flexible incident angles and wide applications.
    Type: Application
    Filed: August 16, 2011
    Publication date: September 19, 2013
    Applicant: Shipeng Song
    Inventor: Xiangyu Wang
  • Publication number: 20130219034
    Abstract: The invention describes a method of performing automatic commissioning of a network (N) comprising a plurality of network devices (10, 11, 12, 13), wherein each device (10, 11, 12, 13) is characterised by a device identifier (14) and wherein the devices (10, 11, 12, 13) are realised to exchange data packets (2), which method comprises the steps of obtaining a computer-readable installation plan (3) for the network (N), which installation plan (3) comprises a physical location descriptor (31) for devices (10, 11, 12, 13) of the network (N); deducing the network topology (T) of the network (N) from network descriptive information (40, 41, 42, 43) provided by the devices (10, 11, 12, 13) on the basis of data packets (2) exchanged between the devices (10, 11, 12, 13); and comparing the deduced network topology (T) to the installation plan (3) to allocate a physical location descriptor (31) to a device identifier (11).
    Type: Application
    Filed: October 13, 2011
    Publication date: August 22, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Xiangyu Wang, Armand Michel Marie Lelkens, Maurice Herman Johan Draaijer
  • Patent number: 8514837
    Abstract: There is elucidated a method of communicating data packets (210; 520) within a data communication network (10). The network (10) comprises communication nodes (30a, 30b, 30c, 40), wherein a first nodal set (30a, 30b, 30c) comprises nodes which are operable to communicate via a communication medium with a second nodal set (40) comprising at least one of said nodes (30a, 30b, 30c, 40). The method comprises steps of: (a) mutually synchronizing together two or more nodes of said first nodal set; and (b) simultaneously in a synchronized manner transmitting one or more data packets from the mutually synchronized two or more nodes of said first nodal set via said communication medium for substantially simultaneous reception at said second nodal set (40).
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: August 20, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Xiangyu Wang, Yonggang Du
  • Patent number: 8509202
    Abstract: The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: August 13, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Xiangyu Wang, Johan Paul Marie Gerard Linnartz, Patrick Van Kooten
  • Patent number: 8451782
    Abstract: A wireless network (1) comprises mesh devices and non-mesh devices. A medium access control architecture incorporates at least a point coordination function as an access method, wherein the point coordination function starts a contention-free period (30) with a beacon (32) so that a non-polled transmission by the non-mesh devices is prevented. Further, the mesh devices are enable to communicate during the contention-free period (30). Hence, communication between the mesh devices is priorisized so that a high reliability is achieved and utilization of the wireless network (1) is optimized.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 28, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Theodorus Jacobus Johannes Denteneer, Guido Roland Hiertz, Gustaf Sebastian Max, Bernard Walke, Xiangyu Wang
  • Publication number: 20130003596
    Abstract: The invention relates to a method for relocating address space in a peer-to-peer network with hierarchical addressing is performed in a network (1) that has a tree structure with routers (3) at different network depths (D). Each router (3) has an assigned address space (10), including an identifying address (11) for the router (3), one or more address blocks (12) for providing further routers (3) with assigned address space (10) and a further address block (13) for providing end devices with identifying addresses. The size of the address space (10) assigned to a router (3) without relocation depends on the network depth (D) of the router (3) in a predetermined way, leading to specific sizes of the address space (10) assigned to routers (3). The method comprises the following steps: An association request is received from a joining router or a joining end device by a first router (3) of the network (1), wherein the address space (10) of the first router (3) is exhausted.
    Type: Application
    Filed: March 11, 2011
    Publication date: January 3, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Armand Michel Marie Lelkens, Andreas Achtzehn, Xiangyu Wang
  • Patent number: 8331397
    Abstract: The present invention relates to a method, apparatuses, a system, and a computer program product for selecting at least one cooperative node from multiple cooperative nodes (21 to 23) for receiving a signal from a source node (10), wherein at least two stages of a backoff process are provided, in which the candidate cooperative nodes (21 to 23) determine respective backoff numbers according to their channel conditions to the source node (10), wherein the second stage is performed if the first stage was not successful or if a second cooperative node shall be selected.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: December 11, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Xiangyu Wang
  • Publication number: 20110255442
    Abstract: The present invention relates to a method of reducing occurrence of masked nodes in a communication network comprising at least three communication nodes operating in the same frequency band and wherein a first node and a second node are within a radio communication range of each other, a third node being within the radio communication range of the second node, but outside the range of the first node. First control information is exchanged between the first node and the second node for establishing a data communication link between them. Then the second node detects intention of the third node to establish a data communication link and prevents the third node from establishing the data communication link.
    Type: Application
    Filed: August 21, 2008
    Publication date: October 20, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Xiangyu Wang, Luca Zappaterra
  • Publication number: 20110149939
    Abstract: The present invention relates to a system comprising at least one primary station and at least one secondary station, wherein the primary station comprises communication means for communicating with the secondary station in accordance with a first protocol, wherein the communication means are arranged for communicating with a plurality of further stations in accordance with a further protocol, and wherein the primary station comprises control means for generating a message to be broadcast to the secondary station, said message comprising purposely erroneous information causing the at least one secondary station to remain silent for a predetermined duration.
    Type: Application
    Filed: August 7, 2009
    Publication date: June 23, 2011
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Xiangyu Wang, Johan Paul Marie Gerard Linnartz, Patrick Van Kooten
  • Publication number: 20100246423
    Abstract: The present invention relates to a method, apparatuses, a system, and a computer program product for selecting at least one cooperative node from multiple cooperative nodes (21 to 23) for receiving a signal from a source node (10), wherein at least two stages of a backoff process are provided, in which the candidate cooperative nodes (21 to 23) determine respective backoff numbers according to their channel conditions to the source node (10), wherein the second stage is performed if the first stage was not successful or if a second cooperative node shall be selected.
    Type: Application
    Filed: October 15, 2008
    Publication date: September 30, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Xiangyu Wang
  • Publication number: 20100014472
    Abstract: A wireless network (1) comprises mesh devices and non-mesh devices. A medium access control architecture incorporates at least a point coordination function as an access method, wherein the point coordination function starts a contention-free period (30) with a beacon (32) so that a non-polled transmission by the non-mesh devices is prevented. Further, the mesh devices are enable to communicate during the contention-free period (30). Hence, communication between the mesh devices is priorisized so that a high reliability is achieved and utilization of the wireless network (1) is optimized.
    Type: Application
    Filed: September 11, 2007
    Publication date: January 21, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Theodorus Jacobus Johannes Denteneer, Guido Roland Hiertz, Gustaf Sebastian Max, Bernard Walke, Xiangyu Wang
  • Publication number: 20100017537
    Abstract: There is provided a method (700, 900) of selecting nodes (120, 130, 140) in a communication network (100), in which a source node (110) communicates with destination nodes (120, 130, 140). The method (700, 900) includes steps of: (a) transmitting a first message (770, 950) from the source node (100) to the destination nodes (120, 130, 140); (b) receiving response messages (780, 960, 980, 990) at the source node (110) from one or more of the destination nodes (120, 130, 140); (c) in an event of contention arising between the response messages (780, 960, 980, 990) received at the source node (110), iteratively selecting a sub-set (510, 520, 610, 620) of the destination nodes (120, 130, 140) to resend their response messages for receipt at the source node (110) until the response messages are received at the source node (110) without contention, the response messages received without contention being indicative of a suitable destination node having been selected.
    Type: Application
    Filed: September 3, 2007
    Publication date: January 21, 2010
    Applicant: Koninkljke Philips Electronics N.V.
    Inventors: Johan Paul Marie Gerard Linnartz, Xiangyu Wang
  • Publication number: 20090268734
    Abstract: A residential gateway (130) interfaces in-home hosts (140) to the public Internet without performing address or port translation. Each in-home host is allocated a public address (212) of the gateway and optionally one or more ports (220). The in-home host generates a lower-level version of the gateway IP address for outgoing packets (S370). The gateway maintains a lookup table (720) for public-to-private IP address conversion for packets incoming from the Internet, and finds the lower-level counterpart of the IP address (730). Packets to go out or packets that have arrived are encapsulated without any address or port translation being performed.
    Type: Application
    Filed: January 5, 2006
    Publication date: October 29, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Xiangyu Wang, Jurjen Henri Eisink
  • Publication number: 20090175260
    Abstract: There is elucidated a method of communicating data packets (210; 520) within a data communication network (10). The network (10) comprises communication nodes (30a, 30b, 30c, 40), wherein a first nodal set (30a, 30b, 30c) comprises nodes which are operable to communicate via a communication medium with a second nodal set (40) comprising at least one of said nodes (30a, 30b, 30c, 40). The method comprises steps of: (a) mutually synchronizing together two or more nodes of said first nodal set; and (b) simultaneously in a synchronized manner transmitting one or more data packets from the mutually synchronized two or more nodes of said first nodal set via said communication medium for substantially simultaneous reception at said second nodal set (40).
    Type: Application
    Filed: June 12, 2007
    Publication date: July 9, 2009
    Applicant: Koninklijke Philips Electronics N.V.
    Inventors: Xiangyu Wang, Yonggang Du
  • Patent number: 7527737
    Abstract: A hemodialysis apparatus comprises dialyzer means, dialyzing solution supply means, blood circulation means, and blood irradiation means. Employing electromagnetic radiation in the red visible and near infrared spectrum as part of a hemodialysis apparatus prevents long-term side effects associated with the use of dialysis, including cardiovascular diseases and anemia, and protects and restores the remaining kidney function.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: May 5, 2009
    Inventor: Xiangyu Wang
  • Publication number: 20080291881
    Abstract: A communication network (10) comprising communication nodes (20, 20a, 40, 60, 70, 80, 90) operable to communicate data therebetween. The nodes (20, 20a, 40, 60, 70, 80, 90) include a mobile station (80) being operable to cooperate with first and second corresponding access points (70, 90), the first access point (70) being operable to provide a first communication route to the mobile station (80), and the second access point (90) being operable to sense operation of the first access point (70). The second access point (90) is operable to provide a second communication route to said at least one station (80) in an event of the first access point (70) ceasing to provide said first communication route. The sensing occurs in operation during slot periods (310, 320, 330, 340) individually assigned to the access points (70, 90).
    Type: Application
    Filed: October 18, 2006
    Publication date: November 27, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Paulus Joseph Gabriel Vranken, Xiangyu Wang, Johan Paul Marie Gerard Linnartz
  • Publication number: 20070262020
    Abstract: A hemodialysis apparatus comprises dialyzer means, dialyzing solution supply means, blood circulation means, and blood irradiation means. Employing electromagnetic radiation in the red visible and near infrared spectrum as part of a hemodialysis apparatus prevents long-term side effects associated with the use of dialysis, including cardiovascular diseases and anemia, and protects and restores the remaining kidney function.
    Type: Application
    Filed: May 9, 2006
    Publication date: November 15, 2007
    Inventor: Xiangyu WANG