The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively.

A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

The present disclosure relates generally to communication with payment terminals via TCP/IP protocol. Using network technology and novel processes, in particular embodiments, the present systems and methods facilitate local network discovery and communication between a payment terminal and an electronic cash register (ECR) via a browser. For example, in certain embodiments, the present systems and methods leverage TCP/IP network technology to securely facilitate communications between SaaS ECR software running in a browser environment and one or more payment terminals.

A process for communicating utility-related data over at least one network is described. the process includes: collecting utility-related data at a hub device during a first predetermined period of time; securing the utility-related data at the hub device using digital envelopes during the first predetermined period of time; initiating by the hub device an autonomous wake up process during a second predetermined period of time; sending the secure utility-related data over a first network to a designated server via at least one User Datagram protocol (UDP) message during the second predetermined period of time; and receiving an acknowledgement of receipt message of the at least one UDP message from the designated server; wherein the first and second predetermined periods of time typically do not overlap, but may overlap.

A method including receiving a batch of events at a processing system of a distributed stream processing system including multiple processing systems in data communication with a shared state data store. The method also can include determining, at the processing system, database operations associated with the events. The method additionally can include coalescing, at the processing system, the database operations into one or more speculative database operations with one or more associated reject rules. The processing system stores a speculative state of at least a portion of the shared state data store. The one or more associated reject rules are based on the speculative state. The method further can include sending the one or more speculative database operations and the one or more associated reject rules from the processing system to the shared state data store to cause the shared state data store to determine whether to reject one or more of the one or more speculative database operations based on an authoritative state in the shared state data store. The method additionally can include receiving, at the processing system, one or more responses from the shared state data store. Other embodiments are described.

A distribution network system having a plurality of nodes using a scheme for data-centric object-oriented communication (DDS) effectively manages the frequently occurring connections for each node and the real-time addition or deletion of a node. Each node includes a gateway connected to a Wide Area Network (WAN) and configured to transmit and receive a message using a Real-Time Publish-Subscribe (RTPS) protocol that applies simple tunneling to communicate as if all nodes communicate in a Local Area Network (LAN), and to insert magic information into a header of the message, the inserted magic information including source IP information of the message, destination IP information of the message, and destination User Datagram Protocol (UDP) information of the message.

The present technology relates to a transmission apparatus, a transmission method, a reception apparatus, and a reception method that enable channel selection information and time information to be transmitted effectively. A transmission apparatus acquires channel selection information for selecting a service and time information used for synchronizations on a transmission side and a reception side, generates, as a physical layer frame constituted of a preamble and a data portion, the physical layer frame in which specific information including at least one of the channel selection information and the time information is arranged at a head of the data portion right after the preamble, and transmits the physical layer frame as digital broadcast signals. The present technology is applicable to IP packet broadcasting, for example.

A system having scalable sockets to support User Datagram Protocol (UDP) connections identifies a plurality of UDP connections, wherein a plurality of remote clients connect to corresponding ones of the plurality of UDP connections. Each one of a plurality of UDP sockets is associated with a corresponding one of the plurality of UDP connections. A network stack lookup for UDP packets in network traffic is performed using a network stack to identify the UDP socket corresponding to the remote client associated with each of the UDP packet. The UDP packets are buffered with a send buffer and a receive buffer for the UDP socket corresponding to the remote client associated with the UDP packets as determined by the network stack lookup to support communication over the plurality of UDP connections using the plurality of UDP sockets. The system thereby operates more efficiently and/or is more scalable.

A method implemented by a network node for processing packets with header options. The network node receives a packet that includes an Internet Protocol (IP) header (e.g., IP version 4 (IPv4) or IP version 6 (IPv6) header). The network node determines that the IP header includes one or more options. The network node modifies an options indicator field in the IP header from a first options protocol value to a selected opaque protocol value. The network node transmits the packet toward the destination of the packet.

Systems and methods for securely transmitting data between terminals include receiving, by a first communication device, an internet protocol (IP) packet via a first application programming interface (API) running on a first computer, dividing, by a splitting unit in the first communication device, the IP packet into a command portion and a data portion, encoding, by a data encoding unit in the first communication device, the data portion into a text delimited non-IP format, transmitting, by a transmitting unit in the first communication device, the encoded data portion and the command portion, receiving, by a second communication device, the encoded data portion and the command portion, decoding, by a data decoding unit in the second communication device, the encoded data portion into IP format, combining, by a constructor unit in the second communication device, the decoded data portion and the command portion to regenerate the IP packet, and receiving, by a second API running on a second computer, the regenerated IP packet.

A process for communicating utility-related data over at least one network is described, the process includes: collecting utility-related data at a hub device during a first predetermined period of time; securing the utility-related data at the hub device using digital envelopes during the first predetermined period of time; initiating by the hub device an autonomous wake up process during a second predetermined period of time; sending the secure utility-related data over a first network to a designated server via at least one User Datagram, protocol (UDP) message during the second predetermined period of time; and receiving an acknowledgement of receipt message of the at least one UDP message from the designated server; wherein the first and second predetermined periods of time typically do not overlap, but may overlap.