3599747 is referenced by 12 patents and cites 3 patents.

A dish-shaped acoustic reflector for use with a sound source, the reflector having a spherical surface for reflecting the desired echoes back toward the sound source in a narrow beam enhancing the strength, stability, and concentration of the received signal, said reflector accepting signals from sound sources over a predetermined angular range and wide frequency range.

Title
Spherical reflector
Application Number
04/783,881
Publication Number
3599747
Application Date
December 16, 1968
Publication Date
August 17, 1971
Inventor
Batzler William E
Hansen Palle G
Assignee
N A
IPC
G01k 11/00
G10K 11/00
G10K 11/28
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