U.S. Patent No. 5,051,799 (PDF file)

Text Version of U.S. Patent No. 5,051,799

View the '799 patent at the USPTO website

View the ‘799 Patent at Google Patents

The '799 patent describes a transducer system with a housing that contains a transducer (e.g., microphone), an A/D converter, and a transmitter. In this system, the analog output of the transducer is first converted into a digital signal. The digital signal is then transmitted to a remote receiver, and utilized by a digital system.

View File History (Large PDF file - 285 pages)