Fujitsu Corporation

Murata Kikai Kabushiki Kaisha

Roy Charles McNeil, Jr

Gary Richard Burrell

David W Terwilliger

Yilun Wang

Sheng Wu

According to one embodiment, providing a bitstream to one or more programmable devices of a service unit card includes receiving the bitstream at a snooper of the service unit card. The snooper determines whether the bitstream is current. If the bitstream is current, the bitstream is loaded onto the programmable devices. If the bitstream is not current, the received bitstream is discarded, and a substitute bitstream is identified. The substitute bitstream is loaded onto the programmable devices.

Providing code to a programmable device

A hash function for a MAC bridge filter that improves bridge performance by reducing overflow of the MAC bridge database and which reduces cost of the device by using relatively few hardware resources. A CRC hash function is used to randomize the search string in the MAC bridge filter so that a consistent bridge performance is achieved regardless of where the bridge is used. Using the CRC as a hash function also results in efficient hardware implementation. In addition, the present invention may be generalized to use a CRC-M as hash function for any bridge filter design.

Using CRC-15 as hash function for MAC bridge filter design

A LAN Service Unit (LANSU) backplane extender provides an inexpensive way to increase LANSU backplane bandwidth so that the performance degradation that may otherwise result can be avoided. A system having increased LANSU bandwidth comprises a backplane including a plurality of data traffic communications connections operable to communicate data traffic, a Line Unit including a WAN interface and a data traffic communications interface to the data traffic communications connections, a LANSU including a LAN interface, a data traffic communications interface to a Bandwidth Extender, and a data traffic communications interface to the data traffic communications connections, and the Bandwidth Extender including a data traffic communications interface to the LANSU and a data traffic communications interface to the data traffic communications connections, the Bandwidth Extender operable to communicate data traffic between the data traffic communications interface to the LANSU and the data traffic communications interface to the data traffic communications connections.

Method and apparatus to double LAN service unit bandwidth

To provide a communication terminal device which can select whether to answer an incoming call from an IP network, and a communication terminal device which improves convenience of a user by executing an appropriate process when there are a plurality of incoming calls. The communication terminal device of the present invention receives an incoming call by a call control protocol, establishes a connection with a transmitter by the call control protocol, and determines whether the incoming call relates to voice communication over the established connection.

Growing community of inventors

Warwick, NY, United States of America

Roy Charles McNeil, Jr