Patents by Inventor Cornelis P. C. Nuijten

Cornelis P. C. Nuijten has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Voice activated multiple microphone electroacoustic amplifier system
    Patent number: 5398287
    Abstract: An electroacoustic amplifier arrangement comprises a plurality of microphone arrangements each of which includes a microphone coupled to a comparator and coupled via a coupling circuit to a variable gain amplifier. The amplifier arrangement further includes a threshold signal generator. The threshold signal generator has a first and a second input coupled to the input and output, respectively, of the amplifier and is arranged to derive a threshold signal as a function of the signals applied to its two inputs. The output of the threshold signal generator is coupled to a second input of the comparator. The threshold signal generator is arranged to derive a threshold signal as a function of the gain factor adjusted in the amplifier.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: March 14, 1995
    Assignee: U.S. Philips Corporation
    Inventor: Cornelis P. C. Nuijten