ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,739,556, issued on Sept. 15, was assigned to KAETEL SYSTEMS GMBH (Munich).
"Sound generator wearable on the head, signal processor and method for operating a sound generator or a signal processor" was invented by Klaus Kaetel (Munich).
According to the abstract* released by the U.S. Patent & Trademark Office: "Sound generator wearable on the head, comprising: a first sound generator element on a first side; and a second sound generator element on a second side, wherein at least a first sound transducer and a second sound transducer are arranged in the first sound generator element such that sound emission directions of the first sound transducer and the second sound transducer are p...