Yingxiang X Kang

US Patent:

20040197041, Oct 7, 2004

Filed:

Apr 4, 2003

Appl. No.:

10/408155

Inventors:

Erlian Lu - Milpitas CA, US
Yingxiang Kang - Fremont CA, US
Yuanxin Shou - Milpitas CA, US

International Classification:

G02F001/035
G02B006/26

US Classification:

385/003000, 385/039000

Abstract:

An unbalanced Mach-Zehnder interferometer for performing an optical filter on a plurality of optical functions is provided. The interferometer includes a first and second fused tapered couplers to split and combine the light beam. A phase difference media made of glass with different refractive index is inserted between two couplers. This kind of structure can achieve reproducibility and environmental stability such as temperature changes and random bending forces.

US Patent:

20040148100, Jul 29, 2004

Filed:

Jan 14, 2004

Appl. No.:

10/758645

Inventors:

YingXiang Kang - Fremont CA, US

International Classification:

G05D001/00

US Classification:

701/210000, 701/026000

Abstract:

A Driving Route Recording-Move System is disclosed to help people back their vehicles more easily and safely. The Driving Route Recording-Move System takes parameter data like the steering wheel rotation angle, moving speed and direction in real time, processes the data and saves them in a file if needed or updates the data. The recording time for the parameter data can be adjusted based on various needs. When the vehicle needs to be backed up, the previously stored data in memory or saved in a file can then be recalled and processed by a control device of the Driving Route Recording-Move System to rotate the steering wheel in a desired direction to a desired angle thus causing the vehicle to back up while following, except in a reverse direction, the same route through which the vehicle came in earlier.