Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Packet switch










Image Number 2 for United States Patent #5440546.

The present invention pertains to a packet switch. The packet switch is comprised of a global shared-memory queue having M storage addresses in which respective packets are stored, where M.gtoreq.3 and is an integer. The packet switch is also comprised of a presentation network having N input ports for receiving packets and providing the respective packets to desired addresses in the queue, where N.ltoreq.3 and is an integer. The queue is in communication with the presentation network for receiving the packets. The packet switch is also comprised of a distribution network having J input ports, where J.ltoreq.1, for receiving packets from the queue and providing them to the desired output ports. The distribution network is in communication with the queue. There is also means for ordering packets received by the presentation network such that packets received sequentially by the presentation network are caused to be provided by the presentation network to consecutive addresses in the queue. In a preferred embodiment, M=N=J, the ordering means includes a fetch-and-add circuit in communication with the queue such that it identifies addresses free for storage of packets being received by the presentation switch, and causes the packets being received by the presentation network to be placed into consecutive addresses free for storage; and the presentation network and the distribution network are each a .OMEGA. switch. In an even more preferred embodiment, the packet switch has multicast capability.








 
 
  Recently Added Patents
User interfaces
Switch redundancy in systems with dual-star backplanes
(4943
Fluorescent proteins
Semiconductor device
Methods to fabricate a photoactive substrate suitable for microfabrication
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
  Randomly Featured Patents
Method of manufacturing laminated ceramic electronic component and laminated ceramic electronic component
Device for stressing with a limited force, in particular for a belt tensioner
Methods and compositions for improving the effectiveness of X-irradiation therapy for the treatment of an internal solid tumor
Method and device for consuming rights objects having inheritance structure in environment where the rights objects are distributed over plurality of devices
Stool sample collector
Hosta plant named `Forbidden Fruit`
Method of preparing layered silicate-epoxy nanocomposites
Pneumatic pusher
Mat for timing competitions
Clip for fixing male and female parts of ground glass joints