04218756 is referenced by 48 patents and cites 5 patents.

The information in the header portion of a data packet, which header includes the old module and channel numbers, is used to access locations in a random access memory which contain new module and channel numbers or words that identify the packet routing. To convert the "virtual" address defined by the old module and channel numbers to a physical address, the module number accesses a memory word which is combined with the channel number to produce a single physical address number. When the information stored in the memory is to be changed, the header has special module and channel numbers and the following data includes a "write" command word, address data and information data. The special header words access a memory word which enables the writing of the information data into memory locations selected by the address data. A "read" command word in the packet inserts the word accessed by the address data into the packet.

Title
Control circuit for modifying contents of packet switch random access memory
Application Number
5/916705
Publication Number
4218756
Application Date
June 19, 1978
Publication Date
August 19, 1980
Inventor
Alexander G Fraser
Bernardsville
NJ, US
Agent
Roy C Lipton
Assignee
Bell Telephone Laboratories Incorporated
NJ, US
IPC
H04J 3/08
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