Patents by Inventor Burkhard Schiek

Burkhard Schiek 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).

  • Microwave range measuring system for measuring the distance of an object
    Patent number: 4238795
    Abstract: Disclosed is a microwave range measuring system for determing the distance to an object by means of the phase difference between a transmitted frequency-modulated wave and the wave reflected by and received from the object. The frequency of the transmitted microwave signal is varied between two fixed frequencies f.sub.u and f.sub.o and the signal reflected by and received from the object is converted by means of a signal converter into an intermediate frequency signal from whose total phase shift the distance is derived.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: December 9, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Burkhard Schiek, Wolfram Schilz, Rolf Jacobson
  • Method and arrangement for measuring the physical temperature of an object by means of microwaves
    Patent number: 4235107
    Abstract: A method for measuring the physical temperature of objects by means of microwaves using a Dicke radiometer. A noise signal is continuously applied to an antenna which is directed towards the object and is periodically and alternately applied, together with the antenna signal, which includes reflected noise and object emission to the radiometer. The integrated output signal of the radiometer controls the noise power and is proportional to the object temperature.
    Type: Grant
    Filed: January 24, 1979
    Date of Patent: November 25, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Kai M. Ludeke, Burkhard Schiek, Jurgen Kohler
  • Broad-band 180.degree. phase shifter
    Patent number: 4195271
    Abstract: Disclosed is a 180.degree. phase shifter having meander-shaped coupled lines in a predominantly planar form, such as, for example, microstrip, microslot or stripline, formed by a .lambda./2 long meander disposed opposite to a .lambda./4 long meander.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: March 25, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Burkhard Schiek, Jurgen Kohler
  • Micro-slot-stripline phase shifter
    Patent number: 4178570
    Abstract: A phase shifter having, on one surface of a substrate, a microstrip stub which is connected in parallel to a microstrip line and which is open at one end. Disposed below the stub is a slot which is short-circuited at a point below the open end of the stub, and which ends in an open circuit at the opposite end.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 11, 1979
    Assignee: U.S. Philips Corporation
    Inventors: Burkhard Schiek, Jurgen Kohler
  • Micro-strip to a slotted line transducer
    Patent number: 4085391
    Abstract: Planar transducer for microwaves from a micro-strip line to a slotted line, in which a microwave strip line junction in the form of a "Y" is disposed on the upper side of a substrate, one of the strip line branches being short-circuited, the other one being open, and that a slotted line in the form of a Y, which is in the opposite direction of the first Y, is disposed at the bottom side of the substrate, one slotted line branch being open, the other being short-circuited, whereas the centers of the "Y"-structures coincide exactly.
    Type: Grant
    Filed: October 7, 1976
    Date of Patent: April 18, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Burkhard Schiek, Frans Christiaan De Ronde