1026 results about "User Datagram Protocol" patented technology

The invention provides a system and method for remotely diagnosing and repairing a plurality of Automatic Data Collection (“ADC”) device platforms. A remote service technician utilizes a computing system having browsing software that communicates with a network of ADC platform devices. Diagnostic queries for particular ADC devices may be retrieved by the browsing software from a diagnostic server that sends Hypertext Mark-Up Language (“HTML”) documents, Dynamic Hypertext Mark-Up Language (“DHTML”) documents, and / or Extensible Mark-Up Language (“XML”) documents containing appropriate diagnostic applets. The remote technician sends diagnostic queries to a Simple Network Management Protocol (“SNMP”) master agent at the ADC device platform, and a translator translates the diagnostic queries sent to the ADC device platform into a format suitable for reception by its ADC devices in order to effect anomaly diagnosis and functionality restoration. Another translator translates data received from the ADC device into the SNMP format for transmission to the remote service technician in order for the remote service technician to perform diagnostic analysis. The SNMP master agent communicates with the remote computing system using the Transmission Control Protocol (“TCP”), the User Datagram Protocol / Internet Protocol (“UDP / IP”), and / or the User Datagram Plus Protocol (“UDP+”). The ADC platform device may also utilize a wireless communication system for communicating with the remote service technician.

A service gateway provides a proxy between a client protocol and a plurality of standard communication protocols. The service gateway provides asymmetrical routing, data compression and encryption to optimize client processing power and communication link bandwidth. The service gateway enables content translation between clients and service providers. The service gateway keeps track of client available memory and sequence numbers in messages to generate error codes when applicable. A store and forward message capability is provided along with abstract session identifiers. The service gateway supports user datagram protocol.

A packet-centric wireless point to multi-point telecommunications system includes: a wireless base station communicating via a packet-centric protocol to a first data network; one or more host workstations communicating via the packet-centric protocol to the first data network; one or more subscriber customer premise equipment (CPE) stations coupled with the wireless base station over a shared bandwidth via the packet-centric protocol over a wireless medium; and one or more subscriber workstations coupled via the packet-centric protocol to each of the subscriber CPE stations over a second network. The packet-centric protocol can be transmission control protocol / internet protocol (TCP / IP). The packet-centric protocol can be a user datagram protocol / internet protocol (UDP / IP). The system can include a resource allocation means for allocating shared bandwidth among the subscriber CPE stations. The resource allocation is performed to optimize end-user quality of service (QoS). The wireless communication medium can include at least one of: a radio frequency (RF) communications medium; a cable communications medium; and a satellite communications medium. The wireless communication medium can further include a telecommunications access method including at least one of: a time division multiple access (TDMA) access method; a time division multiple access / time division duplex (TDMA / TDD) access method; a code division multiple access (CDMA) access method; and a frequency division multiple access (FDMA) access method. The first data network includes at least one of: a wireline network; a wireless network; a local area network (LAN); and a wide area network (WAN). The second network includes at least one of: a wireline network; a wireless network; a local area network (LAN); and a wide area network (WAN).

A complete User Datagram Protocol (CUDP) is disclosed that reduces packet loss. Channel frame error information is used with a packet level forward error correction (FEC) coding technique to accommodate wireless multimedia traffic. Each packet, as well as the channel frame error information, is forwarded to a given application. The CUDP protocol further assists the FEC decoding process by forwarding the locations of corrupted frames to the FEC decoder. Maximal Distance Separable (MDS) codes can be applied to a group of packets, to achieve additional robustness. An MDS decoder utilizes the frame error information to recognize the erasures within each packet. The error information can be represented as a set of LTU error indicators associated with each packet (for FEC decoders requiring an erasure indicator). The error indicators point to the starting and ending location of the erroneous data. The error information can also be represented as a reformatted packet (for FEC decoders Recognizing Erasures). The frame (LTU) error information from the lower layers is incorporated in the packet payload. An FEC encoder is also disclosed that encodes multimedia packets utilizing a packet-coding scheme, such as a Vertical Packet Coding (VPC) scheme or a Long Vertical Packet Coding (LVPC) scheme.

A method in Field Programmable Gate Array for processing packets received at a media gateway is provided. The method includes ascertaining whether a received packet is a UDP (User Datagram Protocol) packet. The method also includes comparing first portion of UDP destination port number from UDP packet header with first portion with UDP port base that has been set up in media gateway. If a match exist, employing second portion of UDP destination port number as a key to UDP port table to ascertain whether packets associated with media stream ID are to be discarded, and discarding received packet if packet associated with media stream ID is to be discarded. If not, obtaining media processing CPU ID associated with media stream ID, formulating destination MAC address, and updating packet with destination MAC address, thereby enabling packet to be switched to media processing CPU associated with media processing CPU ID.

A method of performing a multimedia communication session over a communication link using Transmission Control Protocol (TCP) and over a communication link using User Datagram Protocol (UDP), including the acts of: receiving a request, over the TCP link, to register from a client terminal located within a private network; a probe data packet to the client terminal, over the TCP link, requesting to send a data packet over the UDP link; and receiving a data packet from the client terminal that contains information relating to an address of the client terminal and a dynamic port over which the multimedia communication session is to be established.