Motorola Corporation

Kenneth W Hines

Donald J Sabourin

Bradley T Sanders

Karl Eric Miller

James A Stephens

Vijay K Kapoor

David Stephen Saewert

Gary James Lang

Louis Albert McRoberts, Deceased

Gerry Van Daele

A communication network (10) includes packet switching nodes (18) in which packets from high speed data links (20, 22) are switched onto a multiplicity of low speed data links (26). Each node (18) includes a bulk RAM (30) which has a section (32) dedicated to implementing a multiplicity of logically independent FIFO buffers. A routing controller (46) controls DMA transfers of packets into and out from appropriate FIFO buffers. Packets are transferred into respective FIFO buffers consecutively and transferred out from respective FIFO buffers interleaved together.

Packet switch with centralized buffering for many output channels

A method routes data packets between nodes in a satellite-based communication system based on header information contained in each of the packets. The header information which contains routing and overhead information indicates whether the packet header has been received without any errors and whether the payload is to be read and processed by the node currently servicing the packet or passed on to another adjacent node. This method works in systems that have packet delays or transmission impairments, such as satellite-based telecommunication systems.

Inter-satellite method for routing packets

A method (50) reconstructs messages from segments (30) which are received in an unknown order and at different times. Each segment (30) comprises a header (31) and payload information (38). The method (50) reconstructs messages from the received segments (30) by reassembling the order as specified in the header (31) of the segment (30). Once the message is reconstructed, the message is delivered. This method (50) is especially important in satellite-based communications where no guarantee exists that the messages will be received in a sequential order or at a specified time.

Method of reconstructing and delivering segmented messages

A data record memory system for use with a Doppler radar incorporating a fast Fourier transform computer wherein the memory system utilizes a single memory constructed to read out and write in data at each address and the data supplied to the memory is sequenced so that the data is read out of the memory system in numerical range bin order.

Growing community of inventors

Tempe, AZ, United States of America

Kenneth W Hines