18901256. ACCELERATED FFT HARDWARE (TEXAS INSTRUMENTS INCORPORATED)
ACCELERATED FFT HARDWARE
Organization Name
TEXAS INSTRUMENTS INCORPORATED
Inventor(s)
Karthik Subburaj of Bangalore IN
Karthik Ramasubramanian of Bangalore IN
Anushree Pendharkar of Bangalore IN
Kameswaran Vengattaramane of Bangalore IN
ACCELERATED FFT HARDWARE
This abstract first appeared for US patent application 18901256 titled 'ACCELERATED FFT HARDWARE
Original Abstract Submitted
In described examples, an integrated circuit (IC) includes a fast Fourier transform (FFT) engine, a first memory, a second memory, a conjugate symmetric combiner (CSC), and a control circuit coupled to control them. The first and second memories are coupled to the FFT engine, and the CSC is coupled to the first and second memories and the FFT engine. The FFT engine receives and processes a first stream of samples to generate a second stream of samples. In a first phase, the FFT engine provides a first portion of the second stream of samples to the first memory. In a second phase, the FFT engine provides a second portion of the second stream of samples to the second memory, the first memory provides the first portion of the second stream of samples to the CSC, and the CSC responsively generates a third stream of samples.