Patents by Inventor Martin Kerner

Martin Kerner 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).

  • Patent number: 5177566
    Abstract: An interferometer suitable for length measurements, comprising a laser light source, a beam splitter to divide light stemming from the laser light source into a measuring beam and a reference beam, and recombination means at which the reference beam being guided along a reference path and the measuring beam interfere. The measuring beam travels along a measuring path that leads over a movable measuring reflector and partly through a gaseous ambient medium. The interferometer further comprises photodetector means to analyze optical interference signals stemming from the recombination means. At least one static etalon of a known length is provided to determine or compensate for variable environmental conditions (variable refractive index) of the ambient medium. The etalon comprises two reflection surfaces and is illuminated by light stemming from the laser light source. The space lying inbetween these reflection surfaces is filled with the ambient medium.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 5, 1993
    Assignee: Werner Tabarelli
    Inventors: Gerhard Leuchs, Martin Kerner
  • Patent number: 5172185
    Abstract: Device for stabilizing the wavelength in air of a laser diode for an Interferometer which measures length in waveguide technology. To stablize the wavelength in air, an interference phenomenon, according to Young, is produced and detected in an air chamber of constant and stable length with two point-shaped light waves of a coherent beam. The point-shaped light waves are formed by the ends of waveguides. The photo-detectors and the control device control the frequency of the laser diode so that the interference phenomenon, and therefore the wavelength in air, remain stable inside the reference chamber. The arrangement is simple and compact.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: December 15, 1992
    Assignee: Warner Tabarelli
    Inventors: Gerhard Leuchs, Martin Kerner
  • Patent number: 4779265
    Abstract: Methodology, and associated circuitry, for encoding and decoding signals utilize bistate orthogonal code techniques that effect autonomy of communications and simplified signal processing, thereby improving reliability.Encoder (121) processes an incoming data stream by associating a bistate orthogonal code with each binary one in the input stream and then by transmitting a series of rate-increased pulses over a path during intervals determined by the code for each of the binary ones.Decoder (131), in synchronism with encoder (121), is generally arranged as a correlation detector in that the decoder only responds to the particular bistate orthogonal code for which it is configured. Sensors in energy transfer relation to the path are positioned at detection points on the path in correspondence to an assigned code.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: October 18, 1988
    Assignee: Bell Communications Research, Inc.
    Inventors: Mary G. O'Connor, Jawad A. Salehi, Martin Kerner
  • Patent number: 4779266
    Abstract: Methodology, and associated circuitry, for encoding and decoding signals utilize optimizing orthogonal code techniques that effect autonomy of communications and simplified signal processing, thereby improving reliability.Encoder (121) processes an incoming data stream by associating an optimizing orthogonal code with each binary one in the input stream and then by transmitting a series of rate-increased pulses over a path during intervals determined by the code for each of the binary ones.Decoder (131) is generally arranged as a correlation detector in that the decoder only responds to the particular optimizing orthogonal code for which it is configured. Sensors in energy transfer relation to the path are positioned at detection points on the path in correspondence to an assigned code. The outputs of the sensors are processed to produce a rate-decreased detected signal at the rate of the input stream whenever a rate-increased stream corresponding to the decoder configuration is propagating along the path.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: October 18, 1988
    Assignee: Bell Communications Research, Inc.
    Inventors: Fan R. K. Chung, Martin Kerner, Mary G. O'Connor, Jawad A. Salehi, Victor K. Wei