US Patent No. 10,893,494

SYSTEM AND METHOD FOR SYNCHRONIZING PROTOCOL ANALYZERS DURING WIRELESS TESTING


Patent No. 10,893,494
Issue Date January 12, 2021
Title System And Method For Synchronizing Protocol Analyzers During Wireless Testing
Inventorship Leigh Chinitz, Wellesley, MA (US)
Donald Simpson, Mountain View, CA (US)
Assignee OCTOSCOPE INC., Littleton, MA (US)

Claim of US Patent No. 10,893,494

1. A computer-implemented method for synchronizing wireless testing devices, comprising:in a first protocol analyzer located in a first RF-isolated test chamber, capturing first network packets transmitted to or from a wireless device-under-test (DUT) to generate first test data;
in a second protocol analyzer located in a second RF-isolated test chamber, capturing second network packets transmitted to or from the wireless DUT to generate second test data;
synchronizing internal clocks of the first and second protocol analyzers such that the first and second protocol analyzers capture the first and second network packets with respect to a synchronized internal clock time;
merging the first and second captures using the synchronized internal clock time; and
in the first protocol analyzer, generating a trigger output signal when any of the first network packets satisfies a trigger rule,
wherein the trigger output signal comprises a start trigger output signal that causes the second protocol analyzer to start storing the second test data.