Bondyopadhyay v. United States

129 Fed. Cl. 793, 2017 U.S. Claims LEXIS 27, 2017 WL 213144
CourtUnited States Court of Federal Claims
DecidedJanuary 18, 2017
Docket14-147C
StatusPublished
Cited by3 cases

This text of 129 Fed. Cl. 793 (Bondyopadhyay v. United States) is published on Counsel Stack Legal Research, covering United States Court of Federal Claims primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Bondyopadhyay v. United States, 129 Fed. Cl. 793, 2017 U.S. Claims LEXIS 27, 2017 WL 213144 (uscfc 2017).

Opinion

Patent Infringement; 28 U.S.C. § 1498; Claim Construction; Person of Ordinary Skill in the Art; Preamble; Ordinary and Customary Meaning; Specification.

CLAIM CONSTRUCTION OPINION AND ORDER

MARY ELLEN COSTER WILLIAMS, Judge

In this action, Plaintiff pro se Dr. Probir K. Bondyopadhyay, the inventor of United States Patent No. 6,292,134 (“the ’134 Patent”) for a “Geodesic Sphere Phased Array Antenna System,” claims that the United States Air Force (“Air Force”) infringed his patent by using and manufacturing a portion of a phased antenna array system. This matter comes before the Court for construction of the term “sphere” following a claim construction hearing. 1

Background 2

The ’134 Patent

The ’134 Patent was issued on September 18, 2001, to Plaintiff, inventor Dr. Probir K. Bondyopadhyay, from Application No. 09/513,014 (“the ’014 Application”) on February 25, 2000. The ’014 Application claims priority to provisional Application No. 60/121,874 filed on February 26, 1999. The ’134 Patent consists of 30 claims—independent Claims 1, 14,19, and 25, and dependent Claims 2-13,15-18, 20-24, and 26-30. Plaintiff asserts that the Air Force infringed all 30 claims of the ’134 Patent.

Claim 1 is illustrative of the invention:

1. A geodesic sphere phased array antenna system for multi-satellite communications and tracking, said antenna system comprising:
a geodesic structure derived from an icosahedron having a plurality of pla *796 nar equilateral triangular faces, each of which is subdivided into multiple smaller planar triangular surface regions and each of the vertices of said multiple triangular planar regions projected outward on to the circumscribing spherical surface defining said geodesic structure with a plurality of substantially equilateral triangular geodesic planar surfaces; a subar-ray of planar antenna element units mounted on each of said plurality of substantially equilateral triangular geodesic planar surfaces;
transmit and receive signal processing means connected to each said planar antenna element unit of each said triangular subarray for simultaneous transmission and reception of signals; electromagnetic signal feed means connected to each said planar antenna element unit of each said subarray for forming at least one electromagnetic beam in space;
electronic switching means for selectively connecting each said subarray to adjacent subarrays for generating multiple electromagnetic beams in selective diverse directions in space;
electronic phase shifting means connected to each said planar antenna element unit of each said subarray for providing electronic scanning capability to said subar-rays of antenna element units connected by said electronic switching means with the phased array communication space being segmented into a plurality of smaller cellular space,
each said cellular communication space for electronic scanning being defined by a plurality of discrete chosen directions, corresponding to the said geodesic sphere phased array structure and each said cellular communication space adapted to be electronically scanned by a plurality of active said contiguous phased subarrays corresponding to the said cellular communication space.

’134 Patent 12:65-13:37.

Overview of the Invention

The invention of the 134 Patent is directed to a “geodesic sphere phased array antenna system,” used for satellite communications. 134 Patent Abstract. A geodesic sphere phased array antenna system consists of a geodesic sphere with a phased antenna array mounted onto its planar surfaces. A geodesic sphere is a collection of multiple flat planes of various shapes such as triangles, pentagons and hexagons in which the edges of the planes are contiguously linked together to form a sphere. 134 Patent 4:2-6. 5:27-30, 6:4-9. A soccer ball and Disney’s Epcot Center’s Spaceship Earth “golf ball” are well known examples of geodesic spheres.

A phased array antenna system is a collection of smaller antenna elements that work in a synchronized fashion to create a stronger communication signal than a single antenna alone by harmonizing the signals of multiple smaller antennas. This is accomplished by aligning the “phases” of the smaller antennas—i.e., the sinusoidal curves that send a communication signal—which increases the amplitude of that signal. ’134 Patent 1:51-57; Haupt Decl. ¶32. To align these sinusoidal curves, the antennas in the array are connected by a “feed structure” that energizes, or “feeds,” electromagnetic signals to each of the individual antennas in the array. 134 Patent 1:51-57.

Figure 1 of the 134 Patent illustrates the invention and depicts a planar triangle 22 studded with a subarray of antenna elements which, when contiguously linked together, form the geodesic sphere structure:

*797 [[Image here]]

’134 Patent Fig. 1 (“FIG. 1 is an exploded view showing a phased array antenna of the present invention which comprises substantially equilateral triangular-shaped subarrays of- antenna elements mounted on the faces of a geodesic sphere structure with one of the triangular subarrays broken away and enlarged for purposes of illustration _”).

That the phased antenna array is mounted onto a sphere—as opposed to any other shape—is significant to how the invention works because a sphere permits the antenna system to scan for and transmit communication signals in any direction along the sphere’s surface. As such, a geodesic sphere phased array antenna, if built to completion, would be capable of providing hemispheric coverage from one side of the sphere to the other and “tracking and communicating with one or multiple satellites in all kinds of earth orbits anywhere in the entire sky .... ” ’134 Patent 3:67-4:1. In contrast, single antennas—such as satellite dishes—must be manually steered to face a specific direction in order to send a signal to a specific satellite. Haupt Deck ¶ 31. Therefore, the coverage range for a single antenna is much smaller than the geodesic sphere phased array antenna, and a single antenna would require constant manual intervention to adjust the signal direction to reach the desired satellite. ¡4

A stronger electromagnetic beam, focused in a direction, is capable of traveling “across great distances and at very precise angles” to communicate with specific satellites. Id. at ¶ 27. The communication signal from the antenna to the satellite is strongest when the electromagnetic beam that signals communications projects perpendicularly . outward from the plane of the phased array antenna elements. Stuart Deck ¶41. Figure 7 of the ’134 Patent depicts a geodesic sphere phased array antenna, -with a portion of the antenna energized and the beam projecting out towards the viewer:

*798 [[Image here]]

’134 Patent Fig.

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Related

Bondyopadhyay v. United States
Federal Circuit, 2018
Bondyopadhyay v. United States
Federal Claims, 2018

Cite This Page — Counsel Stack

Bluebook (online)
129 Fed. Cl. 793, 2017 U.S. Claims LEXIS 27, 2017 WL 213144, Counsel Stack Legal Research, https://law.counselstack.com/opinion/bondyopadhyay-v-united-states-uscfc-2017.