Michael A Daniel

US Patent:

49124781, Mar 27, 1990

Filed:

Dec 22, 1988

Appl. No.:

7/288385

Inventors:

Michael R. Daniel - Monroeville PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01Q 322

US Classification:

342375

Abstract:

A phased array radar antenna utilizing signal time delay magnetostatic spin wave devices operable to provide feed line transmit time control for variable length transmission feed lines. The preferred embodiment of an improved phased array radar antenna incorporates ferrite devices controlled by d. c. voltage driven ferroelectrics.

US Patent:

52332438, Aug 3, 1993

Filed:

Aug 14, 1991

Appl. No.:

7/744729

Inventors:

John H. Murphy - Churchill PA
Michael R. Daniel - Monroeville PA
John X. Przybysz - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H03K 19195
H03K 1920

US Classification:

307476

Abstract:

Push-pull flux quantum superconducting digital logic circuits are provided with a circuit branch having a pair of Josephson junctions electrically connected in series with each other. This circuit branch is connected between positive and negative bias voltage supplies which supply a bias current to the Josephson junctions. A dual polarity input voltage signal is applied to a node in the circuit branch and an output signal is extracted from a second node in the circuit branch. Various logic operations can be performed on the input signal by adding additional components and changing the points at which voltage is input to and output from the Josephson junction circuit branch.

US Patent:

57740259, Jun 30, 1998

Filed:

Aug 7, 1995

Appl. No.:

8/511927

Inventors:

John D. Adam - Murrysville PA
Steven N. Stitzer - Ellicott City MD
Carol J. Painter - Library PA
Michael R. Daniel - Monroeville PA
Deborah P. Partlow - Export PA
Andrew J. Piloto - Columbia MD

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

H01P 1215

US Classification:

333 241

Abstract:

A planar phase shifter formed of multiple layers of a ferrite. Selected layers of the ferrite are patterned with a conductor and the multiple layers of magnetic dielectric and conductor are cofired. The phase shifter is fabricated by first obtaining ferrite powder. Then, layers of the ferrite are made, preferably by tape casting. Next the ferrite layers are metallized by applying selected amounts of conductive metals in a selected pattern upon the tape. Selected numbers of vias are placed through selected layers of tape and conductive metal is placed in the vias to provide vertical connections through the layers. The tape layers are then stacked in a predetermined order and are laminated. The laminated stack of layers is then fired to a temperature of approximately 800. degree. C. to 1000. degree. C. , sintering the laminated layers into one integrated structure.

US Patent:

44006691, Aug 23, 1983

Filed:

Sep 25, 1981

Appl. No.:

6/305667

Inventors:

Michael R. Daniel - Monroeville PA
John D. Adam - Murrysville PA
Robert A. Moore - Arnold MD

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

H03H 930
H03H 9125

US Classification:

333141

Abstract:

The linearity of group delay versus frequency in magnetostatic wave delay lines is improved by a linear variation of one of three discrete parameters in the region between the two delay line transducers. The parameter variation is applied to magnetostatic wave delay lines that have a ground plane, a magnetic garnet crystal film substrate that is spaced from the ground plane and has transmitting and receiving transducers engaged to it, and a magnetic bias field. The discrete parameters varied are the magnetic bias field; the distance of the substrate from the ground plane; and the thickness of the substrate. Appropriate linear variations of any one of the these parameters provides improved linearity of group delay versus frequency.

US Patent:

51646188, Nov 17, 1992

Filed:

Aug 14, 1991

Appl. No.:

7/744732

Inventors:

John H. Murphy - Churchill PA
Michael R. Daniel - Monroeville PA
John X. Przybysz - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H03K 19195

US Classification:

307476

Abstract:

Superconducting timed gate array cells for use in single-rail logic circuits are provided by adding inputs to modified variable threshold logic (MVTL) timed inverter circuits. Data signals which are inphase with a first phase of a power source are coupled to gate array cells in which Josephson junction bias current is provided by a second phase of the power source. NOR, NAND, 2NOR-OR and 2NAND-AND circuits are disclosed for use as building blocks in the production of specialized digital logic circuits.

US Patent:

39913309, Nov 9, 1976

Filed:

Apr 23, 1974

Appl. No.:

5/463337

Inventors:

Thelma J. Isaacs - Monroeville PA
Michael R. Daniel - Monroeville PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

H01L 4108

US Classification:

310 95

Abstract:

An acoustic surface wave device is disclosed which comprises a crystal of Tl. sub. 3 VS. sub. 4, Tl. sub. 3 NbS. sub. 4, or mixtures thereof having at least one surface at least 1/2 cm long, a surface wave generating transducer mounted on the surface, and a surface wave receiving transducer mounted on the surface positioned to receive a surface wave generated by the surface wave generating transducer. The device transmits surface waves at a low velocity and high coupling efficiency and can be used in a delay line, a filter, an FM discriminator, an oscillator, or other device.

US Patent:

52332420, Aug 3, 1993

Filed:

Aug 14, 1991

Appl. No.:

7/744728

Inventors:

John H. Murphy - Churchill Boro PA
Michael R. Daniel - Monroeville PA
John X. Przybysz - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H03K 19195

US Classification:

307476

Abstract:

Push-pull flux quantum gate array cells synchronously process a pair of polarized data signals. These polarized data signals can be derived from dual polarity data signals by separating the input signals into positive polarity data signals and negative polarity data signals. At least one logic or arithmetic operation is performed on each of the positive and negative polarity signals to produce modified positive and negative polarity signals respectively. These modified positive polarity and negative polarity signals can also be combined to produce a modified dual polarity output data signal. Numerous logic operations can be achieved in gate array cells which perform this signal processing method. By using push-pull flux quantum circuits, the need for auxiliary timing signals or interferometers is minimized.

US Patent:

51700808, Dec 8, 1992

Filed:

Aug 14, 1991

Appl. No.:

7/744754

Inventors:

John H. Murphy - Churchill Boro PA
Michael R. Daniel - Monroeville PA
John X. Przybysz - Penn Hills PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H03K 19195

US Classification:

307476

Abstract:

Superconducting digital logic circuits constructed in accordance with this invention include a circuit branch having first and second Josephson junctions electrically connected in series with each other, with a junction point between the first and second Josephson junctions connected to a neutral point; a positive bias voltage is connected to one end of the circuit branch, and a negative bias voltage is connected to a second end of the circuit branch; a first rail for applying a first input voltage signal, having a first polarity, and for extracting a first output signal is connected to one end of the circuit branch; and a second rail for applying a second input voltage signal, having a second polarity, and for extracting a second output signal is connected to the other end of the circuit branch. This invention encompasses both the above circuit and the method of signal processing performed by such circuits.