Xiaoyi Liu, 36San Bruno, CA

7043553, May 9, 2006

Oct 7, 1999

09/414995

Robert Charles Monsen - Castro Valley CA, US
Sudhakar Mamillapalli - Santa Clara CA, US
Xiaoyi Liu - Cupertino CA, US

Cisco Technology, Inc. - San Jose CA

G06F 15/16

709229, 709216, 709225, 709246, 707 8, 707 9, 707 10, 710 36, 711147, 711164, 713165, 713166, 713202

A method and apparatus for protecting secured files stored on a file system employs a file security status associated with each file to signal whether or not access to the file is allowed. The file security status is stored in a fixed location in memory. Upon opening the associated file, the file security status is copied to a second location in memory. Depending upon the file security status stored in the second location, operations on the file by a client are either allowed or denied. Operations on non-secure files are always allowed. Operations on secured files are allowed only after verification of the client's authorization to access the file and the subsequent modification of the file security status stored in the second memory location. The method protects secured files from deletion by unauthorized clients. This is accomplished by, upon opening a secure file, initializing a third memory location to a value indicating that the file will not be deleted upon closing.

2023003, Feb 2, 2023

Jul 30, 2021

17/389626

- Mountain View CA, US
Xiaoyi Liu - Mountain View CA, US

WAYMO LLC - Mountain View CA

G05D 1/00
G07C 5/04

Aspects of the disclosure relate to generating assets for a simulation in order to test autonomous vehicle control software. For instance, data identifying a vehicle object, a polygon for the vehicle object, and a polygon for an open-door object associated with the vehicle object may be received. A rectangle may be fit to the polygon for the vehicle object. A polygon for the vehicle object without the open-door object may be determined based on the rectangle. A vehicle asset representing a vehicle may be adjusted based on the polygon for the vehicle object without the open-door object. A position and rotation of the rectangle may be used to position an open-door asset representing an open door for the simulation. The open-door asset is adjusted based on the adjustment to the vehicle asset. The simulation may be run with the positioned and adjusted open door asset in order to test the autonomous vehicle control software.

2021038, Dec 16, 2021

Jun 11, 2020

16/898528

- Mountain View CA, US
Aleksandar Gabrovski - Mountain View CA, US
Xiaoyi Liu - Mountain View CA, US
Wesley Heung - Mountain View CA, US

B60W 40/09
G06F 11/34
G06F 30/20
B60W 60/00

The disclosure relates to running simulations in order to test software used to control a vehicle in an autonomous driving mode. For instance, logged data may be identified for a simulation. The logged data may have been collected by a first vehicle and may identifying an agent that is a road user. The logged data may be analyzed to identify one or more signals of intent of the agent including a logged path of the agent. One or more characteristics may be identified based on the one or more signals. The simulation may be run using the logged data by replacing the agent with an interactive agent having the one or more characteristics. The interactive agent may be capable of responding to actions performed by a simulated vehicle in the simulation using software for controlling a vehicle in an autonomous driving mode.

2021039, Dec 16, 2021

Jun 10, 2020

16/897325

- Mountain View CA, US
Xiaoyi Liu - Mountain View CA, US

G06F 30/20
B60W 60/00

Aspects of the disclosure relate to improving realism in simulations for testing software for operating a vehicle in an autonomous driving mode. In one instance, an initial observation of a road user object may be identified in a log data segment captured by a perception system of a vehicle. The perception system having one or more sensors. The initial observation includes a point in time and an initial location of the road user object. A distance traveled by the road user object from a start of the log data segment to the point in time may be determined. A starting location for the road user object may be determined using the distance traveled. A trajectory for the road user object may be determined between the starting location and the initial location of the road user object. The trajectory may be appended to the log data segment.

2017011, Apr 20, 2017

Oct 13, 2016

15/293230

- Suwon-si, KR
Rakesh Taori - McKinney TX, US
Xiaoyi Liu - Irvine CA, US

H04W 72/12
H04W 24/10

A method, station (STA), and access point (AP) for transmitting in a WLAN. A station includes a controller and a transceiver, the transceiver configured to receive, from an AP, a channel sounding sequence including a null data packet announcement frame (NDPA) including information indicating STAs to transmit a feedback report, a null data packet (NDP) containing pilots to compute the feedback report and a trigger frame (TF) to trigger transmission of the feedback report. An AP includes a controller and a transceiver, the controller configured to generate a NDPA including information indicating STAs to transmit a feedback report, a NDP containing pilots to compute the feedback report, and a TF to trigger transmission of the feedback report from at least one of the STAs, and the transceiver is operably connected to the controller and configured to transmit a channel sounding sequence that includes the NDPA, the NDP, and the TF.