SPECTRUM ANALYZER Russian patent published in 1995 - IPC

FIELD: automation and computer engineering. SUBSTANCE: device has AND gate 1, clock 2, N reverse counters 3 (where N is dimension of conversion), Walsh function generator 4, N registers 5, binary counter 6 (it has K-2 bits where K = log₂N), K-1 ring four-bit shift registers 7, K-1 controlled inverters 9, positive voltage source 8, N multipliers 10, logical one source 11, two switches 12, 13. Device calculates discrete conversion coefficients either by Walsh function or by sequences of D-codes. EFFECT: increased functional capabilities. 4 dwg