06970434 is referenced by 80 patents and cites 29 patents.

A hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. Copies of data, program code and processing resources are migrated from their source toward requesting destinations based on request frequency, communication link costs and available local storage and/or processing resources. Each appropriately configured network device acts as an active participant in network migration. In addition, portable two-dimensional (2-D) code reading terminals are configured to wirelessly communicate compressed 2-D images toward stationary access servers that identify the code image through decoding and through comparison with a database of images that have previously been decoded and stored.

Title
Hierarchical communication system providing intelligent data, program and processing migration
Application Number
9/129448
Publication Number
6970434 (B1)
Application Date
August 4, 1998
Publication Date
November 29, 2005
Inventor
Robert C Meier
Cedar Rapids
IA, US
Michael D Morris
Cedar Rapids
IA, US
Arvin D Danielson
Solon
IA, US
Alan G Bunte
Cedar Rapids
IA, US
Guy J West
Lisbon
IA, US
Ronald L Mahany
Cedar Rapids
IA, US
Agent
McAndrews Held & Malloy
Assignee
Broadcom Corporation
CA, US
IPC
H04L 012/28
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