James T Kajiya

6879930, Apr 12, 2005

Mar 30, 2001

09/820747

Michael J. Sinclair - Kirkland WA, US
Kenneth P. Hinckley - Seattle WA, US
James T. Kajiya - Duvall WA, US
Nathan C. Sherman - Sammamish WA, US

Microsoft Corporation - Redmond WA

G01C017/90
G01C019/00

702150

A device for detecting the position of a human finger or other object on a touch-sensitive scrolling pad. Dual independent oscillators may be used to generate two pulse trains at frequencies dependent upon the capacitance of two conductors resulting from the position of the finger on the conductors. The pulses from each oscillator may be counted over a time interval. A ratio-metric measurement may be taken by calculating the ratio of the two counts, and a sum may also be calculated. The ratio of the two counts relates to finger position on the device, and their sum relates to finger pressure upon the device.

7026892, Apr 11, 2006

Oct 8, 2004

10/961582

James T. Kajiya - Duvall WA, US

Microsoft Corporation - Redmond WA

H01P 1/18
H01Q 3/36

333161, 342372, 342375

A transmission line phase shifter ideally suited for use in low-cost, steerable, phased array antennas suitable for use in wireless fidelity (WiFi) and other wireless telecommunication networks, in particular multi-hop ad hoc networks, is disclosed. The transmission line phase shifter includes a wire transmission line, such as a coaxial, stripline, microstrip, or coplanar waveguide (CPW) transmission line. A high-permittivity dielectric element that overlies the signal conductor of the wire transmission line is used to control phase shifting. Phase shifting can be electromechanically controlled by controlling the space between the high-permittivity dielectric element and the signal conductor of the wire transmission line or by electrically controlling the permittivity of the high-permittivity dielectric element.

7034748, Apr 25, 2006

Dec 17, 2003

10/738684

James T. Kajiya - Duvall WA, US

Microsoft Corporation - Redmond WA

H01Q 3/36
H01P 1/18

342372, 342375, 333161

A low-cost, steerable, phased array antenna suitable for use in wireless fidelity (WiFi) and other wireless telecommunication networks, in particular multi-hop ad hoc networks, is disclosed. Various embodiments of an antenna assembly that includes a plurality of linear phased array antennas fed by corporate feeds are disclosed. The corporate feeds are implemented as parallel wire transmission lines, such as a coaxial, stripline, microstrip, or coplanar waveguide (CPW) transmission line. Selected branches of the corporate feed network include transmission line phase shifters oriented and sized so as to allow a high-permittivity dielectric element to control phase shifting. Thus, the corporate feed forms a phase shifting feed whose phase shift is controllable. Phase shifting can be electromechanically controlled by controlling the space between the high-permittivity dielectric element and the phase shifting branches of the corporate feed or by electrically controlling the permittivity of the high-permittivity dielectric element.

7050927, May 23, 2006

Nov 12, 2004

10/985924

Michael J. Sinclair - Kirkland WA, US
Kenneth P. Hinckley - Seattle WA, US
James T. Kajiya - Duvall WA, US
Nathan C. Sherman - Sammamish WA, US

Microsoft Corporation - Redmond WA

G01C 17/00
G01C 19/00

702150

A device for detecting the position of a human finger or other object on a touch-sensitive scrolling pad. Dual independent oscillators may be used to generate two pulse trains at frequencies dependent upon the capacitance of two conductors resulting from the position of the finger on the conductors. The pulses from each oscillator may be counted over a time interval. A ratio-metric measurement may be taken by calculating the ratio of the two counts, and a sum may also be calculated. The ratio of the two counts relates to finger position on the device, and their sum relates to finger pressure upon the device.

7158125, Jan 2, 2007

Jul 21, 2004

10/895103

Michael J. Sinclair - Kirkland WA, US
Kenneth P. Hinckley - Seattle WA, US
James T. Kajiya - Duvall WA, US
Nathan C. Sherman - Sammamish WA, US

Microsoft Corporation - Redmond WA

G09G 5/00

345173, 178 1806, 702150

A device for detecting the position of a human finger or other object on a touch-sensitive scrolling pad. Dual independent oscillators may be used to generate two pulse trains at frequencies dependent upon the capacitance of two conductors resulting from the position of the finger on the conductors. The pulses from each oscillator may be counted over a time interval. A ratio-metric measurement may be taken by calculating the ratio of the two counts, and a sum may also be calculated. The ratio of the two counts relates to finger position on the device, and their sum relates to finger pressure upon the device.

7280107, Oct 9, 2007

Jun 29, 2005

11/171672

J. Turner Whitted - Carnation WA, US
James T. Kajiya - Duvall WA, US

Microsoft Corporation - Redmond WA

G06T 15/00

345420, 345586

Techniques and tools for rendering procedural graphics are described. For example, an architecture is provided which allows evaluation of geometric, transform, texture, and shading procedures locally for a given set of procedure parameter values. This evaluation is performed in parallel for different parameter values on a single-instruction, multiple-data array to allow parallel processing of a procedure set. In another example, a sampling controller is described which selects sets of parameter points for evaluation based on information in tag maps, rate maps, and parameter maps.

7414623, Aug 19, 2008

Jun 29, 2005

11/171954

J. Turner Whitted - Carnation WA, US
James T. Kajiya - Duvall WA, US

Microsoft Corporation - Redmond WA

G06T 17/00

345420, 345586

Techniques and tools for rendering procedural graphics are described. For example, an architecture is provided which allows evaluation of geometric, transform, texture, and shading procedures locally for a given set of procedure parameter values. This evaluation is performed in parallel for different parameter values on a single-instruction, multiple-data array to allow parallel processing of a procedure set. In another example, a sampling controller is described which selects sets of parameter points for evaluation based on information in tag maps, rate maps, and parameter maps.

7768783, Aug 3, 2010

Jun 16, 2009

12/485544

James T. Kajiya - Duvall WA, US
J. Turner Whitted - Carnation WA, US
David W. Williams - Woodinville WA, US

Microsoft Corporation - Redmond WA

H05K 7/20

361700, 361699, 361715, 361716, 361719, 361721, 257715, 174 152, 165 804, 16510426

Embodiments for cooling electronic modules are disclosed. In accordance with at least one embodiment, an electronic module is inserted into a cooling sled that is equipped with a bay. The bay of the cooling sled is equipped with a pair of sides to retain the electronic module. The electronic module contains a working fluid that is sealed inside the module with one or more electronic components. During the operation of the electronic module, the working fluid is vaporized by the heat generated by the one or more electronic components. The electronic module is then cooled via the cooling sled. The cooling of the electronic module condenses the working fluid that is vaporized by the heat generated by the one or more electronic components. The condensed cooling fluid is then returned to the one or more electronic components via a wick structure that is also sealed in the electronic module.