About M. W. P. Strandberg ...

List of Patents


2,543,425 Issued 27 February 1951. Squeezable Waveguide for (Electrical) Line Stretching. This is the delta b waveguide phase shifter.

2,581,819 Issued 8 January 1952. Coaxial Termination for Noise Diode. Provides a means for inducing filament vo1tage into the center conductor of a matched coaxial line.

2,681,414 Issued 15 June 1954. Automatic Frequency Control Circuit. Provides a means for locking an oscillator frequency to a resonant system using an on-off type of control.

2,703,362 Issued 1 March 1955. Frequency Finder System. This is the so- called Strandberg circuit for infinite receiver resolution for carrier identification.

2,705,756 Issued S April 1955. Automatic Frequency Control System. Provides a means for locking an oscillator frequency by using a transitron oscillator as a sweep generator for search, and as a DC amplifier for feedback control.

2,750,564 Issued 12 June 1956. Frequency Monitoring Circuit. Provides a means by which a resonant cavity can be used to provide a pip for a spectrum analyzer.

2,761,141 Issued 28 August 1956. Continuously Varying Dielectric Constant Electromagnetic Lens. Provides a means for producing continuously varying dielectric constant material by compressing polyfoam, or foamed polystyrene.

2,905,902 Issued 22 September 1959. Microwave Frequency Discriminator. Provides a means for realizing an intrinsically-balanced frequency discriminator for which the resonant circuit determining the center frequency can be varied in frequency over a wide range.

3,143,655 Issued 4 August 1964. Photosensitive Switching Device in a Waveguide. This is a patent for a photomodulated resistance for use as a non-mechanical switch, or as an optical coupler.

6,023,514 Issued 8 february 2000. System and Method for Factoring a Merged Wave Field Into Independent Components. It presents method using digital processing to overcome the Cocktail Party Effect. In doing this it isolates a single sound source from several. This has application in hearing aid devices to change a confusion of sound sources into that of a single source selected by the user.



 

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Malcom W. P. Strandberg
1998-05-13