Real-time spectrum analyzer having frequency content based trigger unit

US10024895B1 · kind B1 · utility

Assignee

• KEYSIGHT TECHNOLOGIES, INC. · US

Inventors

• Joeri Melis · Blegny, BE
• Gery Verhaegen · Rotselaar, BE

Key dates

• Filing date: Mar 15, 2013
• Grant date: Jul 17, 2018
• Expiry date: Dec 29, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R23/18
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A real-time spectrum analyzer includes an ADC for providing digitized time domain data, an acquisition control unit for selectively acquiring the time domain data, a processing unit and a display unit. The processing unit includes a domain conversion engine configured to convert the acquired time domain data to frequency domain data, first and second display engines configured to generate first and second display data according to first and second display modes, a frequency content based trigger unit configured to generate a frequency content based trigger signal when the frequency domain data meet a first predetermined trigger condition, and a trigger based enabler configured to generate an enable signal for selectively gating the second display engine in response to the frequency content based trigger signal, such that the second display engine stops generating the second display data, while the first display engine continues to generate the first display data.