John C Schuster, 852500 Goss Ridge Rd, Freeland, WA 98249

6381044, Apr 30, 2002

Jul 28, 2000

09/627816

John J. Schuster - Bellevue WA
David P. Bajorins - Redmond WA

Terabeam Corporation - Kirkland WA

G02B 532

359 16, 359 15, 359 19, 359708

A cover plate on a holographic optical element (HOE) device corrects for aberrations, such as spherical aberrations. The HOE device includes an emulsion material, having a recorded interference pattern that can perform diffraction, sandwiched between a first element and a second element, wherein the second element functions as the cover plate. One of the surfaces of the second element is aspheric to correct for aberrations. The aspheric shape of the surface adds approximately equal and approximately opposite aberrations associated with light rays diffracted by the recorded interference pattern, thereby substantially improving focus.

6417976, Jul 9, 2002

Mar 6, 2001

09/801030

John J. Schuster - Bellevue WA
Richard B. Riday - Kirkland WA
Eric J. Davis - Redmond WA
James S. Webb - Seattle WA
Randy Hulett - Seattle WA
Derek Schulte - Seattle WA

Terabeam Corporation - Kirkland WA

G02B 702

359822, 359813, 359823

A mount for an electro-optic system, such as an optical transceiver system, is usable to compensate for motion that affects alignment with respect to an optical communication signal. The mount can include inner and outer elements having pivots spaced 90 degrees apart relative to each other. The outer element is fixed, and the inner element is capable of movement. The electro-optic system is pivotally coupled to the inner element. A first set of pivot elements between the inner element and the outer element allows rotation about a first axis, while a second set of pivot elements between the electro-optic system and the inner element allows rotation about a second axis, which may be orthogonal to the first axis.

6498662, Dec 24, 2002

Jul 28, 2000

09/627276

John J. Schuster - Bellevue WA

Terabeam Corporation - Kirkland WA

G02B 532

359 15, 359 13, 359 34, 385 13, 385 34, 385 14

A holographic optical element (HOE) device useable for an optical receiver system has a first element having first and second surfaces, with the first surface being positionable to face incident light rays. The incident light rays can comprise laser light having data modulated thereon. An emulsion material is disposed over the second surface of the first element and has a recorded interference pattern that diffracts the incident light rays that pass through the first element. A second element overlies the emulsion material and is structured to pass resulting light rays derived from the incident light rays and diffracted from the recorded interference pattern. A plurality of reflective elements are positioned adjacent to the first and second elements. The reflective elements fold the resulting light rays within the second element, thereby allowing a reduction in separation length between the emulsion material and receiver electronics.

6791073, Sep 14, 2004

Dec 21, 2000

09/746700

John A. Bell - Issaquah WA
John J. Schuster - Bellevue WA

Terabeam Corporation - Redmond WA

H01L 3100

2502141, 250214 AL, 25022711

A baffle containing a plurality of small apertures is mounted on the receiver aperture of an optical receiver, such as a wireless optical telecommunication system receiver. The baffle attenuates ambient radiation that may interfere with the optical receiver. The baffle includes a plurality of apertures that have their axes substantially parallel to the optical axis of the receiver.

6882358, Apr 19, 2005

Oct 2, 2002

10/263865

John Schuster - Bellevue WA, US
Robert Pierce - Woodinville WA, US
David Bajorins - Redmond WA, US

Terabeam Corporation - Falls Church VA

H04N007/14

348 1416, 348 1407, 359 15, 353 28

Apparatus, system, and method for enabling eye-to-eye contact in video conferences. In general, the system and apparatus employ means for generating video images corresponding to real images that would be produced if a video camera were disposed at or behind a video display having a field of view directed toward a target object such as a participant. An image (either real, reflected, or holographic) is formed based on light reflected off of the target object, and object light corresponding to the image is received by the video camera, which produces a video signal containing the image. Typically, the means for generating the video images employs direct imaging, reflective imaging, or holographic imaging. The means for generating the video images are also configured in such a manner as to be substantially transparent to video conference participants viewing the display images on the video display. A similar configuration is deployed at two or more conference rooms, thereby enabling participants to communicate with one another using eye-to-eye contact.

6970651, Nov 29, 2005

Jul 31, 2001

09/919687

John J. Schuster - Bellevue WA, US
John A. Bell - Issaquah WA, US

Terabeam Corporation - Falls Church VA

H04B010/00

398131, 398120, 398118

Apparatus and methods for implementing a high-power or high-sensitivity tracking mode of operation in a free-space optical communication system are disclosed. Functions of the high-power or high-sensitivity tracking mode may be implemented in response to one or more engage signals generated and transmitted in response to a sensed inclement weather condition, such as fog or the like, which may interfere with communication of an optical signal between a pair of free-space optical terminals in the free-space optical communication system. Implementation of the high-power or high-sensitivity tracking mode facilitates maintenance of the alignment between the pair of free-space optical terminals throughout the duration of the inclement weather condition to allow data communication to resume fully after the inclement weather condition has diminished.

8471706, Jun 25, 2013

Sep 5, 2008

12/205639

John Joseph Schuster - Redmond WA, US
Rand William Lee - Seattle WA, US
Mark Plett - Kirkland WA, US

G08B 23/00
G01S 3/02

3405721, 342463

A system for tracking entities at a site comprises a mesh of radio frequency identification (RFID) tags. Each of the tracked entities, which may move about the site, is associated with and attached to a portable RFID tag. Each RFID tag is at least periodically caused to transmit a signal that includes an identification of the RFID tag. The signal is received by other RFID tags that are within range, which determine a location indicative parameter. Some of the RFID tags receiving the signal are fixed at predefined locations. Specific fixed RFID tags are designated as controller nodes. Data comprising an identification of the RFID tag receiving a signal, the location indicative parameter, and the identification of the portable RFID tag transmitting the signal are communicated to a location engine server, which processes the data to determine at least a relative position of the portable RFID tags on the site.

2003009, May 22, 2003

Jun 23, 2001

09/888244

John Schuster - Bellevue WA, US
Jeffrey Adams - Seattle WA, US
John Bell - Issaquah WA, US
Gerald Tourgee - Convent Station NJ, US

H04J014/00
H04B010/00
H01S003/00
G02F002/00
G02F001/00

359/109000

An optical communication system is provided that has a network including a transmitter station that conveys data through a wireless pathway to a receiver station. An obstruction of the pathway is determined by measuring the attenuation of an optical beam arriving at or intending to arrive at a target receiver station and comparing the value with the attenuation of other optical beam(s) arriving at or intending to arrive at one or more reference receiving stations in the optical communication system. The values are interpreted to determine the nature of the blockage and various parameters in the optical data transmission system controlled according to the presence of a local blockage or global blockage. A further consideration in determining the type of blockage may be through measuring the backscattering of the optical beam. In addition, other aspects of the present invention relating to the storage and transfer of selected transaction data are described.