Yan Jun Han

US Patent:

20190132419, May 2, 2019

Filed:

Nov 1, 2017

Appl. No.:

15/800159

Inventors:

- Sunnyvale CA, US
Xianen Qiu - Sunnyvale CA, US
Chun Han - Fremont CA, US
Yan Han - Champaign IL, US
Ruichen Wang - Urbana IL, US

International Classification:

H04L 29/08

Abstract:

Services often utilize scoring techniques to distinguish between user requests that comply with a usage policy of the service from those that represent a misuse of the service. Users who endeavor to misuse the service engages in probing by submitting a variety of requests to the service until one such request exhibiting a score that is within a score threshold, and then patterning further requests that misuse the service upon the successful request. Instead, when a first request from a user is identified that violates the score threshold, a score offset is selected. The scores of second and future requests by the user are adjusted by the score offset, indicating increased suspicion of the user's requests, while allowing legitimate requests that fulfill the score threshold by a larger margin. Additionally, absent further misuse, the score offset decays over time to restore trust incrementally in the legitimacy of the user's requests.

US Patent:

20140169787, Jun 19, 2014

Filed:

Dec 18, 2012

Appl. No.:

13/718008

Inventors:

- Sunnyvale CA, US
Yan Han - Fremont CA, US

Assignee:

Infinera Corporation - Sunnyvale CA

International Classification:

H04B 10/08

US Classification:

398 38

Abstract:

A controller is configured to determine a first amount of current associated with a first power level. The controller is configured further to generate a digital pulse signal based on the first amount of current, where the digital pulse signal may have a second power level and an associated duty cycle. The controller is configured further to convert the digital pulse signal into a second amount of current and output the second amount of current as a pulse signal based on the duty cycle.