Gary K Chung

20020003654, Jan 10, 2002

Feb 9, 1999

09/246985

WEITI WU - MILPITAS CA, US
YU-LI KO - FREMONT CA, US
GARY CHUNG - FREMONT CA, US

H01S003/00

359/337000, 359/337100

An all fiber optical filter is formed by stretching an optical fiber. The all fiber filter includes a core, an inner cladding, and an outer cladding. A core index of refraction is greater than an outer cladding index of refraction. The outer cladding index of refraction is greater than an inner cladding index of refraction. The all fiber optical filter attenuates a portion of an optical signal by transferring optical energy from the core to the outer cladding by evanescent coupling. The all fiber optical filter has a compact structure, which prevents bending and provides stable temperature performance. The all fiber optical filter is preferably used in Wavelength Division Multiplexing (WDM) systems for gain flattening of gain responses from Erbium Doped Fiber Amplifiers (EDFAs). Alternatively, the all fiber optical filter is used in other applications where optical filtering or attenuation is needed. The all fiber optical filter is manufactured by holding a length of an appropriate optical fiber between two clamps, heating the optical fiber, and stretching the optical fiber until a predetermined characteristic of the all fiber optical filter is achieved.

20020041434, Apr 11, 2002

Dec 12, 2001

10/015736

Weiti Wu - Milpitas CA, US
Yu-Li Ko - Fremont CA, US
Gary Chung - Fremont CA, US

H01S003/00

359/337100

An all fiber optical filter is formed by stretching an optical fiber. The all fiber filter includes a core, an inner cladding, and an outer cladding. A core index of refraction is greater than an outer cladding index of refraction. The outer cladding index of refraction is greater than an inner cladding index of refraction. The all fiber optical filter attenuates a portion of an optical signal by transferring optical energy from the core to the outer cladding by evanescent coupling. The all fiber optical filter has a compact structure, which prevents bending and provides stable temperature performance. The all fiber optical filter is preferably used in Wavelength Division Multiplexing (WDM) systems for gain flattening of gain responses from Erbium Doped Fiber Amplifiers (EDFAs). Alternatively, the all fiber optical filter is used in other applications where optical filtering or attenuation is needed. The all fiber optical filter is manufactured by holding a length of an appropriate optical fiber between two clamps, heating the optical fiber, and stretching the optical fiber until a predetermined characteristic of the all fiber optical filter is achieved.

20220413789, Dec 29, 2022

Aug 31, 2022

17/900680

- Cupertino CA, US
Le Wang - San Jose CA, US
Qianyi Zhao - San Jose CA, US
Kedi Zhang - Sunnyvale CA, US
Xingchao C. Yuan - Palo Alto CA, US
Jon F. Housour - San Francisco CA, US
Gary Chung - Menlo Park CA, US

G06F 3/14
G06F 3/044
G06F 3/041

Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.

20210096804, Apr 1, 2021

Sep 27, 2019

16/585238

- Cupertino CA, US
Le Wang - San Jose CA, US
Qianyi Zhao - San Jose CA, US
Kedi Zhang - Sunnyvale CA, US
Xingchao C. Yuan - Palo Alto CA, US
Jon F. Housour - San Francisco CA, US
Gary Chung - Menlo Park CA, US

G06F 3/14
G06F 3/041
G06F 3/044

Devices for mitigating or stopping noise or surface current on a display are provided. An electronic device including a display may include a display substrate, a mid-support plate that is adjacent to the display substrate, and a lower support plate that is adjacent to the mid-support plate. A space exists between the mid-support plate and the lower support plate. The mid-support plate includes one or more electromagnetic band gap (EBG) structures formed through the mid-support plate, one or more electromagnetic band gap structures mounted onto the mid-support plate, or both. The one or more electromagnetic band gap structures may mitigate or stop surface current flow across the display.

20200386890, Dec 10, 2020

May 28, 2020

16/885316

- Cupertino CA, US
Bernhard Buettgen - San Jose CA, US
Cristiano L. Niclass - San Jose CA, US
Rahmi Hezar - San Jose CA, US
Shingo Mandai - Mountain View CA, US
Darshan Shrestha - Sunnyvale CA, US
Gary Chung - Menlo Park CA, US
Moshe Laifenfeld - Haifa, IL

G01S 17/26
G01S 17/86
G01S 7/527
G01S 7/53
G01S 7/524

Sensing apparatus includes a radiation source, which emits pulses of optical radiation toward multiple points in a target scene. A receiver receives the optical radiation that is reflected from the target scene and outputs signals that are indicative of respective times of flight of the pulses to and from the points in the target scene. Processing and control circuitry selects a first pulse repetition interval (PRI) and a second PRI, greater than the first PRI, from a permitted range of PRIs, drives the radiation source to emit a first sequence of the pulses at the first PRI and a second sequence of the pulses at a second PRI, and processes the signals output in response to both the first and second sequences of the pulses in order to compute respective depth coordinates of the points in the target scene.