Local area network protocol analyzer

Electricity: measuring and testing – Plural – automatically sequential tests

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Details

34082505, 34082507, 370 86, 370 94, G01R 3102, H04J 316, H04J 302

Patent

active

047927534

ABSTRACT:
A local area network protocol analyzer for analyzing packets or signal series running in a coaxial cable of a local area network and comprising a code/decoder to separate a packet received from the coaxial cable into a clock signal and a serial data signal, a receive signal processing section to convert the serial data signal into parallel data, a receive memory section to store the parallel data from the receive signal processing section in a receiving data memory section thereof and an output/input section to analyze and indicate the parallel data in the receiving data memory section and to input instruction signal to instruct the sections therefrom, the receive signal processing section including a control counter for controlling an address where the parallel data is stored in the receiving data memory and being counted up for every storing of the parallel data and the receive memory section including a managing data memory section under control of which a memory address pointer indicating where the packets are stored is set, a packet length is measured and a packet interval is measured.

REFERENCES:
patent: 4679191 (1987-07-01), Nelson et al.

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