An infrared-ray cordless microphone including a modulator for modulating an acoustic-to-electric converted sound signal through a predetermined process; and an infrared-ray transmitter for transmitting an output infrared signal obtained by converting the modulated sound signal from the modulator; wherein the infrared-ray transmitter is disposed at a lower end of the microphone body. There is also provided an infrared-ray cordless microphone system comprising such a microphone and a sound output ...

A device for accessing a vehicle control system via a wireless link, a gateway control unit which is connected to at least one vehicle bus and to a wireless network being provided, and the gateway control unit being freely configurable via the wireless link.

In an illustrative embodiment of the present invention, a channel is allocated to carry messages from each of multiple subscriber units to a base station. Selected messages generated by a subscriber unit that would otherwise be transmitted over an assigned reverse link traffic channel are instead encoded and transmitted to the base station over a shared reverse link channel. Preferably, the shared reverse link channel is time-slotted and each subscriber unit transmits information to the base sta...

The disclosure relates to techniques and technologies for efficiently transporting management information between mesh nodes across multiple hops or "mesh links" in a multi-hop mesh network. These techniques and technologies are general purpose and provide an extensible mechanism for transporting management traffic across a mesh network. These techniques and technologies can be applied in a number of applications relating, for example, to security, routing, radio measurements, mesh node manageme...

A system and method for discovering capabilities of a network interface prior to a handover. The mobile node detects a beacon with a radio interface identifier that identifies a new access router (NR). Using the radio interface identifier, the mobile node obtains interface information on the NR through a current access router (CR). The interface information identifies the capabilities of the NR.

A stream manager provides a way of redirecting and managing messaging and information access in a packet network environment. The stream manager is linked to a packet network, such as the Internet. The stream manager receives over the packet network a message from a user's host server initiated by a user and intended for a destination site. The message bears an address for the stream manager which is provided to the host server by the address server for the packet network, such as a server utili...

A channel-alignment circuit has a controller and a plurality of channel-alignment blocks. Each channel-alignment block synchronizes two or more channels. The controller coordinates the synchronization of channels by the blocks such that (i) channels in each of one or more groups of two or more blocks are synchronized, and (ii) each group of blocks is synchronized independently of any other group.

A network transport layer accelerator accelerates processing of packets so that packets can be forwarded at wire-speed. To accelerate processing of packets, the accelerator performs pre-processing on a network transport layer header encapsulated in a packet for a connection and performs in-line network transport layer checksum insertion prior to transmitting a packet. A timer unit in the accelerator schedules processing of the received packets. The accelerator also includes a free pool allocator...

The present invention provides a radio frequency ("RF") activation system with improved operating capability and ease of installation. Improved responsiveness is provided by the receiver which determines the frame timing of incoming signals and calculates the estimated time of arrival for ensuing frames thus minimizing loss of frame synchronization problems. In one embodiment, this is accomplished by determining the time span of the frame start sequence and using this to determine the frame timi...

A large high capacity switch is provided for a communication network which is constructed from a network of smaller switches. Data is fragmented into fixed sized cells and the cells of a traffic flow are aggregated by grouping cells to form larger yet uniform units of information transfer. The groups are transmitted synchronously and in parallel to increase the effective bandwidth of information transfer.