Kin Sun Chan

US Patent:

6433917, Aug 13, 2002

Filed:

Nov 22, 2000

Appl. No.:

09/718619

Inventors:

Wenhui Mei - Plano TX
Kin Foong Chan - Plano TX

Assignee:

Ball Semiconductor, Inc. - Allen TX

International Classification:

G02B 2608

US Classification:

359292, 359291

Abstract:

A light modulation element, device, and system is discussed. The light modulation element includes three electrodes, a flexible member, and a mirror. The flexible member is connected between the three electrodes so that the first and second electrodes are on one side and the third electrode is on the opposite side of the flexible member. The mirror is attached to the flexible member so that it can move therewith. The flexible member moves responsive to an external electrostatic force provided by one or more of the three electrodes so that the mirror is positioned in a predetermined position responsive to the state of the flexible member.

US Patent:

6512625, Jan 28, 2003

Filed:

Dec 1, 2000

Appl. No.:

09/728691

Inventors:

Wenhui Mei - Plano TX
Kin Foong Chan - Plano TX
Dong Youn Sim - Miyagi-ken, JP

Assignee:

Ball Semiconductor, Inc. - Allen TX

International Classification:

G02B 2600

US Classification:

359290, 359291

Abstract:

A light modulation element, device, and system is discussed. The light modulation element includes three electrodes, a flexible member, and a mirror. The flexible member is connected between the three electrodes so that the first and second electrodes are on one side and the third electrode is on the opposite side of the flexible member. The mirror is attached to the flexible member so that it can move therewith. The flexible member moves responsive to an external electrostatic force provided by one or more of the three electrodes so that the mirror is positioned in a predetermined position responsive to the state of the flexible member.

US Patent:

6658315, Dec 2, 2003

Filed:

Oct 31, 2001

Appl. No.:

09/682911

Inventors:

Kin Chan - Plano TX

Assignee:

Ball Semiconductor, Inc. - Allen TX

International Classification:

G06F 1900

US Classification:

700121, 716 21

Abstract:

A system and method for non-synchronously projecting light in an imaging system is provided. A pixel panel may be selectively controlled to direct light onto or away from a subject. A light source, such as a laser diode, projects light pulses at the pixel panel. The pulses are not synchronized with the pixel panel, so the light may strike the pixel panel at any time when the pixel panel is operable to direct light towards the subject. The pulses may be constant or variable in energy or duration, depending on the desired results.

US Patent:

7062094, Jun 13, 2006

Filed:

Feb 14, 2002

Appl. No.:

09/683789

Inventors:

Xiaoqi Zhou - Richardson TX, US
Wenhui Mei - Plano TX, US
Takashi Kanatake - Dallas TX, US
Kin Foong Chan - Plano TX, US

Assignee:

Disco Corporation - Tokyo

International Classification:

G06K 9/36
H04N 1/413

US Classification:

382232, 35842613

Abstract:

A method for losslessly transmitting data is provided. The data is separated into two or more portions and the second portion is subtracted from the first portion to find a difference. The first portion and the difference are transmitted, and then the second portion is reconstructed by adding the difference to the first portion. The data may comprise two or more images, with each image being a temporally displaced version of the preceding image. Each image may be divided into multiple areas, where the areas on each image correspond to the areas on the other images. A difference may be obtained by subtracting each area of an image from the corresponding area of the preceding image. The first image may then be transferred as a reference image along with the differences, and each image may be reconstructed by adding each difference to the corresponding area of the previous image.

US Patent:

7282060, Oct 16, 2007

Filed:

Dec 21, 2004

Appl. No.:

11/020648

Inventors:

Leonard C DeBenedictis - Palo Alto CA, US
Thomas R Myers - Palo Alto CA, US
Kin F Chan - San Jose CA, US
George Frangineas, Jr. - Fremont CA, US

Assignee:

Reliant Technologies, Inc. - Mountain View CA

International Classification:

A61N 5/06

US Classification:

607 88, 128898, 606 9

Abstract:

The present invention provides methods and apparatus for controlling light-induced tissue treatment. In accordance with various aspects of the present invention, the invention provides for improved, real-time control of the light beam operational parameters which enables greater safety, efficiency, uniformity and continuity of the treatment process.

US Patent:

7824395, Nov 2, 2010

Filed:

Aug 29, 2006

Appl. No.:

11/468275

Inventors:

Kin F. Chan - San Jose CA, US
George Frangineas - Fremont CA, US
Leonard C. DeBenedictis - Palo Alto CA, US
Robert Kehl Sink - Mountain View CA, US

Assignee:

Reliant Technologies, Inc. - Mountain View CA

International Classification:

A61B 18/18

US Classification:

606 10, 606 9, 606 12, 607 88, 607 89, 128898

Abstract:

A method and apparatus for thermal treatment of tissue by irradiating the skin with electromagnetic energy is disclosed. Sources of electromagnetic energy include radio frequency (RF) generators, lasers, and flashlamps. The apparatus includes either a positional sensor or a dosage evaluation sensor, or both types of sensors. These sensors provide feedback to a controller. The controller may control the electromagnetic source parameters, the electromagnetic source activation, and/or the sensor measurement parameters. An additional scanning delivery unit may be operably coupled to the controller or to the sensors to provide a controlled distribution of electromagnetic energy to the target region of the skin. The use of positional measurement sensors and dosage evaluation sensors permits the controller to automatically determine the proper electromagnetic source parameters including, for example, pulse timing and pulse frequency.

US Patent:

7862555, Jan 4, 2011

Filed:

Jul 13, 2007

Appl. No.:

11/778012

Inventors:

Kin F. Chan - San Jose CA, US
George Frangineas - Fremont CA, US
David Dewey - Sunnyvale CA, US
Leonard C. DeBenedictis - Palo Alto CA, US

Assignee:

Reliant Technologies - Mountain View CA

International Classification:

A61B 18/20

US Classification:

606 9, 606 10, 606 12, 607 88, 607 89

Abstract:

In a fractional treatment system, an adjustable mechanism can be used to adjust the beam shape, beam numerical aperture, beam focus depth, and/or beam size to affect the treatment depth and or the character of the resulting lesions. Adjustment of these parameters can improve the efficiency and efficacy of treatment. Illustrative examples of adjustable mechanisms include a set of spacers of different lengths, a rotatable turret with lens elements of different focal distances, an optical zoom lens, and a mechanical adjustment apparatus for adjusting the spacing between two optical lens elements. In one aspect, the fractional treatment is configured with a laser wavelength that is selected such that absorption of the laser wavelength within the tissue decreases as the tissue is heated by the laser (e. g. , 1480-1640 nm). Desirably, the laser wavelength is primarily absorbed within a treated region of skin by water and has a thermally adjusted absorption coefficient within the range of about 7 cmto about 26 cm.

US Patent:

7938821, May 10, 2011

Filed:

Jul 13, 2007

Appl. No.:

11/777965

Inventors:

Kin F. Chan - San Jose CA, US
George Frangineas - Fremont CA, US
David Dewey - Sunnyvale CA, US
Leonard C. DeBenedictis - Palo Alto CA, US

Assignee:

Reliant Technologies, Inc. - Hayward CA

International Classification:

A61B 18/20

US Classification:

606 9, 606 3, 606 10, 606 17, 607 88, 607 89

Abstract:

A fractional treatment system can be configured with a laser wavelength that is selected such that absorption of the laser wavelength within the tissue increases as the tissue is heated by the laser (e. g. , 1390-1425 nm). Desirably, the laser wavelength is primarily absorbed within a treated region of skin by water and has a thermally adjusted absorption coefficient within the range of about 8 cmto about 30 cm. An adjustable mechanism can be used to adjust the beam shape, beam numerical aperture, beam focus depth, and/or beam size to affect the treatment depth and or the character of the resulting lesions. The system may be designed to be switchable between a treatment mode that is semi-ablative and a treatment mode that is not semi-ablative. Adjustment of these parameters can improve the efficiency and efficacy of treatment. Illustrative examples of adjustable mechanisms include a set of spacers of different lengths, a rotatable turret with lens elements of different focal distances, an optical zoom lens, and a mechanical adjustment apparatus for adjusting the spacing between two optical lens elements.