Abstract: The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type (52) from which no other device type depends and a basic device type (54) from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Abstract: The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type from which no other device type depends and a basic device type from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Abstract: In a wireless network, a device regularly communicates with at least one other node or device: generally this is its parent. If a problem with communication is detected, the device is preferably able to autonomously carry out a procedure to reacquire the network. In one embodiment, if a device is unable to communicate, it enters a temporary failsafe mode until that problem can be rectified. The device is suitably able to carry out a survey of local conditions in order to assist both it and the network to find a suitable alternative channel and, if a device is unable to immediately reconnect it broadcasts the result of its survey, the Network Environment Status (NES) message, in the hope that another device on the network will hear it. This Status message may then be used by the network to select an alternative channel.

Abstract: The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type (52) from which no other device type depends and a basic device type (54) from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Abstract: The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type (52) from which no other device type depends and a basic device type (54) from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Abstract: The invention relates to a protocol for communications between networked devices. The devices are logically arranged as a hierarchy of device types including a controller device type (52) from which no other device type depends and a basic device type (54) from which a number of other device types depend. The devices implement a simple device description message of fixed length and format which includes the device type, and some devices further implement an extended device description message including additional information.

Abstract: A method for routing messages having a routing indicator across linked master/slave configured piconets. At each master node, a routing table is stored and at each hop a receiving master node performs a reception algorithm on the routing indicator, the result enabling the receiving node to identify a target node and whether that node is local to the receiving piconet or a node accessible through a piconet with which the receiving piconet is linked. In the latter instance, the receiving node performs a transmission rule on the result to generate a new routing indicator replacing the routing indicator, which is then transmitted with the message to the identified piconet.

Abstract: In a wireless network, a device regularly communicates with at least one other node or device: generally this is its parent. If a problem with communication is detected, the device is preferably able to autonomously carry out a procedure to reacquire the network. In one embodiment, if a device is unable to communicate, it enters a temporary failsafe mode until that problem can be rectified. The device is suitably able to carry out a survey of local conditions in order to assist both it and the network to find a suitable alternative channel and, if a device is unable to immediately reconnect it broadcasts the result of its survey, the Network Environment Status (NES) message, in the hope that another device on the network will hear it. This Status message may then be used by the network to select an alternative channel.

Abstract: A bridging system for a communication system comprises a first gateway (107) and a second gateway (108) arranged to communicate with each other. Each gateway (107, 108) is connectable to a different bus (100, 105) of the communication system. The first gateway (107) is operative to communicate details of available devices (102, 103) on its respective bus (100) to the second gateway (108). The second gateway (108) is operative to generate at least one proxy element corresponding to each of said available devices (102, 103). Each proxy element is operative to communicate data and messages between devices (130) on the bus (105) of the second gateway (108) and the device on the first gateway (100) corresponding to the proxy element.

Abstract: A bridging system for a communication system comprises a first gateway (107) and a second gateway (108) arranged to communicate with each other. Each gateway (107, 108) is connectable to a different bus (100, 105) of the communication system. The first gateway (107) is operative to communicate details of available devices (102, 103) on its respective bus (100) to the second gateway (108). The second gateway (108) is operative to generate at least one proxy element corresponding to each of said available devices (102, 103). Each proxy element is operative to communicate data and messages between devices (130) on the bus (105) of the second gateway (108) and the device on the first gateway (100) corresponding to the proxy element.