Acoustics – Diaphragm – With horn
Patent
1978-08-16
1979-06-12
Tomsky, Stephen J.
Acoustics
Diaphragm
With horn
1791155H, 181156, G10K 1300, H04R 700
Patent
active
041577418
ABSTRACT:
A phase plug structure is described which is an intermediate element between a conventional fiber cone loudspeaker and an exponential horn. The purpose of the phase plug is to equalize acoustical path lengths and thereby minimize high-frequency cancellations caused by phase differences. The design of the phase plug is based upon an analysis of both low-frequency and high-frequency horn behavior. A usable bandwidth of four octaves is obtained over a sharply-defined angle of radiation.
In accordance with another embodiment of the invention, an enclosure is provided having a first exponential radiator, of relatively small size attached to the front of the speaker, and a relatively large exponential radiator coupled to the rear surface of the speaker for improved base response.
REFERENCES:
patent: 1707545 (1929-04-01), Wente
patent: 1930915 (1933-10-01), Wente
patent: 2037187 (1936-04-01), Wente
patent: 2058208 (1936-10-01), Blattner
patent: 3852529 (1974-12-01), Schafft
patent: 3991286 (1976-11-01), Henricksen
patent: 4050541 (1977-09-01), Henricksen
Slick Robert G.
Tomsky Stephen J.
LandOfFree
Phase plug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Phase plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase plug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1106890