NXT MODERATED CHART AND DISCUSSION THREAD (epic: NTX)

Happy New Year To All and we hope you had a very nice family Xmas!

From NTX on TMF:

A brand new USA Patent grant which looks very exstensive indeed!



Figure 36/37 and 29/30 interesting:

"In FIGS. 36 and 37, a cabin (102) of a passenger vehicle, e.g. an aircraft, railway carriage, motor coach or ferry, has rows of passenger seats (103) into the backs (203) of which are incorporated loudspeakers (81). As is conventional the seat backs (203) are shells moulded from a suitable plastics material. As shown more particularly in FIG. 37, the moulded backs (203) of the seats (103) are moulded with generally rectangular relatively thin areas (2) bounded by grooves (100). These areas (2) are stiffened on their inner faces with a lightweight cellular core (22) which is backed by an inner skin (21) to form a rigid lightweight multi-mode radiator panel (2) of the kind to which this invention generally and FIGS. 1 and 2 particularly relate. The grooves (100) effectively define a resilient suspension (3) and the surrounding seat backs (203) form the frame (1). A transducer (9), e.g. of the kind described in detail herein, is attached to each panel (2) to launch or excite bending waves in the panels to cause them to resonate to produce an acoustic output.

FIG. 38 illustrates a conventional domestic automobile door (140) in which a conventional cone-type pistonic loudspeaker drive unit (42) is mounted in a pocket (141) in a moulded or pressed door lining (104). The normal consequence of this is that the sound radiated by the drive unit (42) is directed towards the feet of the occupant(s) of the automobile, matters being made worse by directional characteristics of conventional loudspeaker drivers."
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Looks like the USA Patent covers ceiling panels to Mobiles, Computor Screens to Buses!

Lisa:)