Patents by Inventor Neil Schafer

Neil Schafer 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).

  • Digital frequency locked loop for wideband communications channels requiring extreme Doppler compensation and low signal to noise ratio
    Patent number: 10250283
    Abstract: An apparatus for carrier recovery includes a frequency detector. The frequency detector includes a Fast Fourier Transform processor receiving a complex baseband RF input signal and outputting at least one positive frequency bin output and at least one negative frequency bin output. The frequency detector includes a first accumulator receiving directly or indirectly the at least one positive frequency bin output and outputting a positive frequency band energy estimate. The frequency detector includes a second accumulator receiving directly or indirectly the at least one negative frequency bin output and outputting a negative frequency band energy estimate. The frequency detector includes a subtractor receiving the positive frequency band energy estimate and the negative frequency band energy estimate and outputting an instantaneous frequency error estimate representing a difference between the positive frequency band energy estimate and the negative frequency band energy estimate.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: April 2, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Neil Schafer
  • Body drier with interconnected cylindrical air blower housings
    Patent number: 6842581
    Abstract: Body Drier with a plurality of cylindrical housings, each housing retaining a heating coil, a fan blade, an electric fan motor, a fan bracket and a fan grill. Each cylindrical fan housing assembly is attached to the one above it by means of standard electrical connectors. The cylindrical housings each have a cut out portion to allow warm air to flow out from the fan. Each cut out portion is covered by a grill. The cylindrical housings each have a standard bayonet type attachment so that the housings can be attached one on top of the other creating a tower. The tower secured in an upright position by a base plate. A single power cord exits from the base plate so that the attached plug can be inserted into a standard wall socket. The body drier includes a standard oscillating mechanism that causes the tower to oscillate.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 11, 2005
    Inventor: Neil Schafer
  • BODY DRIER
    Publication number: 20040213559
    Abstract: Body Drier with a plurality of cylindrical housings, each housing retaining a heating coil, a fan blade, an electric fan motor, a fan bracket and a fan grill. Each cylindrical fan housing assembly is attached to the one above it by means of standard electrical connectors. The cylindrical housings each have a cut out portion to allow warm air to flow out from the fan. Each cut out portion is covered by a grill. The cylindrical housings each have a standard bayonet type attachment so that the housings can be attached one on top of the other creating a tower. The tower secured in an upright position by a base plate. A single power cord exits from the base plate so that the attached plug can be inserted into a standard wall socket. The body drier includes a standard oscillating mechanism that causes the tower to oscillate.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 28, 2004
    Inventor: Neil Schafer