Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate
2008-08-01
2011-10-11
Barrera, Ramon (Department: 2832)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having acoustic wave modifying structure
C381S339000, C381S340000, C381S341000, C381S387000, C181S187000, C181S191000, C181S192000, C181S194000
Reexamination Certificate
active
08036403
ABSTRACT:
The present invention belongs to the field of loudspeaker and relates to directional sound wave radiator comprising a sound transmission duct, a reverser, an annular director, a parabolic reflector, and a straight tubular loudspeaker cylinder. The sound transmission duct is mounted substantially coaxially with said parabolic reflector. The straight tubular loudspeaker cylinder is connected to said parabolic reflector. The reverser is provided inside said straight tubular loudspeaker cylinder and at the outlet end of said sound transmission duct; the outlet end of said reverser has an annular section, which is substantially perpendicular to the axis of said parabolic reflector and is positioned substantially at the focus of said parabolic reflector. The annular director is mounted around said sound transmission duct and at the outlet end of said reverser to define an annular shape of the outlet end of said reverser. The reverser and said annular director are fixed to said sound transmission duct by supporting screws.
REFERENCES:
patent: 1641664 (1927-09-01), De Forest
patent: 1737864 (1929-12-01), Perla et al.
patent: 2638510 (1953-05-01), Brami
patent: 4865159 (1989-09-01), Jamison
patent: 4896134 (1990-01-01), Hayashi
patent: 4982436 (1991-01-01), Cowan
patent: 5220608 (1993-06-01), Pfister
patent: 6031920 (2000-02-01), Wiener
Barrera Ramon
Beijing Wave Energy Technology Development Company, Ltd.
Oliff & Berridg,e PLC
LandOfFree
Directional sound wave radiator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Directional sound wave radiator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directional sound wave radiator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4279085