Jie Lin, 46Redwood City, CA

2008017, Jul 24, 2008

Jan 22, 2008

12/017545

Jian Ni - New Haven CT, US
Jie Lin - Rochester NY, US

Xerox Corporation - Norwalk CT

G06F 15/173

709223

A method and system for designing file replication schemes in file sharing systems consider node storage constraints and node up/down statistics, file storage costs, and file transfer costs among the nodes, user request rates for the files, and user specified file availability requirements. Based on these considerations, a systematic method for designing file replication schemes can be implemented. The method first determines the number of copies of the files to be stored in the system to achieve the desired goal (e.g., to satisfy file availability requirements, or to maximize the system hit rate), and then selects the nodes at which to store the file copies to minimize the total expected cost. The file replication scheme for a peer-to-peer file sharing system in a distributed and adaptive manner can scale to a large number of nodes and files and can handle changes in the user request pattern over time.

2008018, Jul 31, 2008

Jan 22, 2008

12/017534

Jian Ni - New Haven CT, US
Jie Lin - Rochester NY, US
Steven J. Harrington - Webster NY, US
Naveen Sharma - Fairport NY, US

Xerox Corporation - Norwalk CT

G06F 15/173

709239

A method and system for designing file replication schemes in file sharing systems consider node storage constraints and node up/down statistics, file storage costs, and file transfer costs among the nodes, user request rates for the files, and user specified file availability requirements. Based on these considerations, a systematic method for designing file replication schemes can be implemented. The method first determines the number of copies of the files to be stored in the system to achieve the desired goal (e.g., to satisfy file availability requirements, or to maximize the system hit rate), and then selects the nodes at which to store the file copies to minimize the total expected cost. The file replication scheme for a peer-to-peer file sharing system in a distributed and adaptive manner can scale to a large number of nodes and files and can handle changes in the user request pattern over time.

2008030, Dec 11, 2008

Jun 6, 2007

11/810936

Edwin Ho - Palo Alto CA, US
King Sun Wai - Castro Valley CA, US
Jie Lin - San Francisco CA, US

G06F 17/30

707 5, 707E17001

A method and apparatus for compiling user preferences and providing access to preferred digital content on a mobile handset is provided.

2013004, Feb 14, 2013

Aug 8, 2012

13/569181

Jie LIN - San Francisco CA, US

G06F 15/16

709203

A mobile device (or app on the mobile device) can be paired with an application executing on a computing device external to the mobile device. The pairing can be based at least in part upon a unique ID assigned to the application on the computing device by a network server. For example, the network server can assign the application on the computing device a unique ID and the application can provide a machine-readable code corresponding to the unique ID. The (app on the) mobile device can read/scan the machine-readable code to become paired with the application. Subsequent to the pairing, (the app on) the mobile device and (the application on) the external computing device can interact dynamically via a network (e.g., communicate in real-time via the Internet). In some embodiments, the network server can facilitate the dynamic interaction between the mobile device and the external computing device via the network.

2022031, Oct 6, 2022

Mar 31, 2021

17/218748

- Singapore, SG
Jie LIN - San Jose CA, US

G02B 6/12
G02B 6/122
G02B 6/136

A method for making a multimode interference (MMI) coupler with an arbitrary desired splitting ratio includes forming a thin-film of silicon-nitride material overlying a SOI substrate. The method further includes obtaining geometric parameters of a standard MIMI coupler including a rectangular MMI block and one input port and two output ports in taper shape with one of standard splitting ratios under self-imaging principle which is close to the desired splitting ratio. Additionally, the method includes tunning the input port to an off-center position at front edge of the MMI block. The method further includes making a first output port to a first off-center position flushing with a side edge of the MMI block, adjusting a second output port to a second off-center position. The method includes tunning the MMI block to obtain optimized geometric parameters for approaching the selected arbitrary splitting ratio, and etching the thin-film of silicon-nitride material.

2021032, Oct 21, 2021

Apr 15, 2020

16/849197

- Santa Clara CA, US
Jie LIN - Santa Clara CA, US

G02B 6/122
G02B 6/13

An optical splitter includes a silicon-on-insulator substrate having a cladding layer. The optical splitter also includes a first waveguide of a first width and a first length buried in the cladding layer and a second waveguide of a second width and a second length buried in the cladding layer disposed in close proximity of the first waveguide by a gap distance. A ratio of the second width over the first width is configured to be smaller than 1 while the first length, the second length, and the gap distance are configured to allow evanescent coupling of a first confined mode of an optical signal in the first waveguide into the second waveguide with a certain splitting ratio being achieved in a range of 1% to

2020025, Aug 13, 2020

Feb 13, 2019

16/274826

- Santa Clara CA, US
Jie LIN - Santa Clara CA, US

G02B 27/28

The present application discloses a polarization beam splitter (PBS). The PBS includes a silicon substrate and a planar structure formed thereon characterized by an isosceles trapezoid shape with a first parallel side and a second parallel side connected by two tapered sides. The first parallel side has longer width than the second parallel side, both of which is separated by a length no greater than 100 μm along a line of symmetry bisecting the pair of parallel sides. The PBS further includes a pair of input ports coupled to the first parallel side and a pair of output ports coupled to the second parallel side. The planar structure is configured to receive an input light wave of any wavelength in C-band via one input port and split to a TE-mode light wave and a TM-mode light wave respectively outputting to the pair of output ports.

2019032, Oct 24, 2019

Apr 23, 2018

15/959968

- San Jose CA, US
Jie Lin - San Jose CA, US
Jihui Huang - San Jose CA, US

G03F 1/70
G03F 1/76

Methods, apparatuses, and systems for determining a binary mask pattern from a pixelated mask pattern include: determining, by a processor, based on a fast marching method (FMM), arrival values for pixels of a portion of the pixelated mask pattern; determining the binary mask pattern based on the arrival values; and updating at least one of the arrival values based on a comparison between a design pattern corresponding to the pixelated mask pattern and a substrate pattern simulated based on the binary mask pattern.