Kyong Kim Email & Phone Number

Cupertino, Ca

Greater San Diego Area

Display engineer working on display bring-up, kernel / user space driver development, display feature implementation, etc. - Worked on both smartphone projects (using Qualcomm chipsets) and TV projects (using MStar chipsets)- Owned both user space display services (SurfaceFlinger / HWComposer) and kernel display driver development.- Support for panel bring-up including schematics review, feedback on panel component selection and product display requirements, implementing display power rail / GPIO customizations, panel initialization sequence and panel timing configuration, verifying MIPI DSI commands and HDMI HPD, EDID, and AVI / HDR Infoframe configurations.- Worked on implementation of dynamic 4K / 1080p timing switch on TV based on contents.

Greater San Diego Area

Display Engineer specializing in debugging display issues, supporting panel bring-ups, and providing software implementations for OEM specific features.- Worked on resolving display issues using both live-device and post mortem debugging on multiple projects for each of wide number of customers including: Microsoft, Nokia, Samsung, LGE, Motorola, Xiaomi, Acer, Compal, Dell, HP, HTC, Honeywell, Huawei, LeTV, Panasonic, Pegatron, Quanta, RIM, Sony, Yulong, ZTE, etc.- Worked on resolving display issues on smartphone, wearable, and IoE projects.- Worked with multiple OS platforms over the years, supported both Linux (Android) and Windows (both Windows and Windows Phone), as well as QNX (for RIM).- Support for panel bring-up including schematics review, feedback on panel component selection, display power rail / GPIO customizations, MIPI DSI & HDMI signal probing using oscilloscope and providing analysis, validating and debugging panel initialization sequence and panel configurations.- Provided driver implementation for EDID based dynamic panel detection for LVDS panel connected through DSI to LVDS bridge chipset.- As a lead for display post-processing from the customer engineering side, participated in feature design discussions for display color management, panel calibration, and ambient light-based / content-based adaptive display processing features and tools, and provide analysis and feedback based on customer requirements.- For Android, adept at log-based message debugging for both user space and kernel level, as well as display performance analysis using systrace.- For Windows, adept at UEFI level debugging using JTAG ICD and kernel level debugging on both live device and postmortem dump using WinDbg.

Greater San Diego Area

- Device driver developer specializing in board bring-up, device driver development, SW integration, debugging, and performance measurements - Worked as a device driver developer for multiple projects: AX8600 (Audio), AX565 (Display, Power Management), AX585 (Camera, Display, and Power Management), LG370 (Camera, Power Management), LW510 (Touchpad, Camera) mobile phones. - Worked on board bring-up (including initial source code integration, schematics review, GPIO / power rail control and platform configuration, and device bring-up from boot to display bring-up on the OS side) for AX565, AX585, LG370, LW510 - As an audio device driver engineer, implemented audio device drivers, applied audio calibrations, implemented sound cases for different carriers, checked and debugged sound cases and amp/path control issues. - As a display device driver engineer, implemented display device driver, brought up displays, debugged initialization stability issues, temperature related issues, host / panel display controller issues, RF desense issues, and backlight issues - As a power management engineer, reviewed initial HW power rail design, configured PMIC for initial board bring-up, checked and debugged current consumption issues, power cycle issues, and worked on charging curve optimization.- As a camera device driver engineer, implemented camera driver initialization, debugged camera configuration and preview / capture issues and implemented camera features (brightness, filters, etc.) including designing APIs to interface between UI and HW.- As a touchpad driver engineer, implemented touchpad controller driver, dealt with touch detection / responsiveness issues. Also provided SW interface and prototype tool for touchpad simulation used for QA testing automation. - From 2010 to 2011, as a part of performance team, worked in setting up processes for network-related & comparative performance analysis for smartphone current consumption.

Seoul, Korea

April 2005 to June 2006: Device driver engineer specializing in Memory, USB, and File System October 2003 to April 2005: Software engineer specializing in PST (Product Support Tool) framework development and maintenance of PST DLLs - Worked as a member of device driver team for LG-VX4700, VX8400, and VX8600 phones. - Collaborated with other team members in EFS TDR (Tear-Down & Redesign) project that dealt with problem of EFS file system in mobile phones that use Intel NOR type flash memory - As a file system specialist in EFS2 TDR project, worked on debugging EFS2 file system corruption problem, by browsing through corrupted file system metadata to perform postmortem analysis.- Ported, developed and maintained memory device drivers for SDRAM / NAND MCP - Tuned memory controller registers for different SDRAM refresh timings, mainly for dealing with RF harmonic frequency interference (RF desense) issues. - Developed diagnostic monitoring tool (used for development) for above models - Implemented firmware source codes related to manufacturing QA tools. - Developed USB related source codes, as well as debugging USB port detection-related issues - Adept at analyzing mobile phone circuit blueprints, port maps, and memory device specifications - Adept at using Lauterbach Trace32 JTAG ICD (In-Circuit Debugger) to debug mobile phone target - Built LG PST tool DLL for LG-VX3200 and VX4700 mobile phones - Developed Spirent UPST (Universal PST) DLL for LG-PM325 and MM535 mobile phones