Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1991-01-31
1992-10-06
Kemeny, Emanuel S.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
G10L 710
Patent
active
051539225
ABSTRACT:
An electrical process transforms an object electrical signal into a compact time-varying graphical representation whereby study of the time-varying spectral properties of said signal may be efficiently pursued. A time-varying symbol (TVS) includes means for providing first electrical signals representative of the time-varying magnitude spectrum of said object electrical signal, means for generating second electrical signals representative of the continuous variation in position and shape of a single graphical edge as a function of frequency, wherein said continuous variation in position and shape is such that all points inside some closed area within the output image are swept at more than one frequency within some continuous portion of the frequency range covered by said electrical process, and wherein said continuous variation in position and shape is such that no position and shape are repeated at more than one frequency throughout said continuous portion of said frequency range covered, and means for combining said first and second electrical signals into an output electrical signal representative of the weighted superposition of edges over all frequencies.
REFERENCES:
patent: 2500646 (1950-03-01), Riesz
patent: 4641343 (1987-02-01), Holland et al.
patent: 4669097 (1987-05-01), Bristol
patent: 4845642 (1989-07-01), Itaya et al.
Johnson Larry D.
Kemeny Emanuel S.
Melnick S. A.
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