概要
Consultant in wireless and wired communication systems and consumer electronics. I provide consulting services for patent analysis, reverse engineering, expert testimony (expert witness) as well as system design and development (R&D).
Founder of GHB Intellect, a technology and science expert services organization. With over 150 technology experts and scientists at hand, we provide technical analyses and expert services to patent attorneys and intellectual property professionals.
Summary of Accomplishments:
o Over 20 years of progressive telecom and wireless industry experience in innovation, design, development, and management
• A multi-disciplined background combining software, firmware, hardware, RF and standards know-how, which enables a complete system understanding
• Well-rounded experience in cellular communications involving mobile phones, mobile networks and base stations, and mobile carriers/service providers.
o Extensive experience with Cellular networks, cell phones, and base stations
o In-depth knowledge of GSM, CDMA (3GPP2), UMTS/WCDMA/LTE (3GPP), IEEE 802.11, ISDB-T, DVB, UWB, Bluetooth, USB standards and technologies
o Extensive hands-on technical experience in:
• Cellular handset design and development (CDMA)
• Cellular networks (deployment and optimization)
• PHY, MAC, Network layer designs, simulations and development
• Hardware/software architectural designs, system analyses, partitioning
• Reconfigurable hardware and software architectures
• Real-time, power-sensitive embedded system development
• Embedded DSP programming
• Reverse Engineering (at software, firmware, and hardware levels): cell phones, TVs, laptops, eReaders, wireless routers, …
• Patent infringement and prior art investigations. Patent landscape mapping in 3GPP, 3GPP2, IEEE 802.11, hardware, software, middleware, applications, GPS, etc.
• Standards and SIGs contributions (3GPP2/TIA/IS-95/cdma2000/EVDO/CDG, IEEE802.11/15/16, Wi-Fi, WiMedia, ECMA International)
• Closely familiar with all mobile communication standards
o Highly innovative (over 50 patents filed, 27 granted so far)
o Author of WiMedia UWB: Technology of Choice for Wireless USB and Bluetooth, Wiley, 2008
o Adjunct Instructor at University of California, San Diego
o Retained for 3 patent litigation cases
o Amateur Radio Operator (N9OWX)
o Past chairman of San Diego chapter of IEEE Vehicular Technology Society for two years
o Several recognitions for contributions to Nokia intellectual properties
o Senior Member of IEEE (Institute of Electrical and Electronics Engineering)
職歴
2007-Now, GHB Intellect, a Division of GHB Services, LLC
President
Performed technical patent analyses and claim charting on thousands of patents in UMTS, CDMA2000, WiMAX, LTE, WiFi, GPS, UWB, multimedia, hardware and software architectures of cell phones, base stations, consumer electronics, PCs, etc. Analyzed patents and pending applications for claim quality, validity, relevance to standard, relevance to commercial essentiality, market value, etc. Developed patent roadmaps large clients based on analysis of over a thousand competing patents in the relevant fields. Performed a multitude of reverse engineering projects including smartphones, ebooks, laptops, and 3D Televisions. Reverse engineering tasks consisted of software, hardware, and firmware forensic analyses as well as claim charting. Was involved in a number of expert witness cases.
Also provide engineering design, development and management expertise to various clients, from large defense contractor corporations, to various small and large commercial companies. Design wins include:
- A highly efficient, high throughput and versatile satelite communication and networking system that was performed in conjunction with teams from JPL, Lockheed Martin, and Space Micro.
- A robust, high speed wireless personal area networking system for wearable devices.
2008-2010 WiLinx Corp.
Vice President of Engineering
Led the engineering team towards the development of a low power, short range, wireless communication and local positioning system suitable for cellular applications. Researched and devised plans for high quality video streaming to and from cellular handsets. Led system engineering and architectural designs of the system which included a low-power RF IC, a 500-Mbps baseband IC, a super efficient, robust, ad-hoc networking medium access controller, a system-on-chip, and various FPGA and final evaluation boards and reference designs. Created datasheets for all products. Developed engineering plans and roadmaps, business plans and proposals & budgets. Hired, coached, and actively led a team of multi-disciplinary (System, HW, SW, Applications) engineers. Established/managed relationships with key partners in order to enable development of the solutions. Managed vendors and their contract negotiations. Created standards and patent strategies. Managed standards participations and contributions to USB-IF, Bluetooth, and IEEE802. Followed and participated in the regulatory bodies around the world (US, Japan, Europe).
2003-2007 Olympus Communication Technology of America, San Diego, CA
Vice President of Engineering
Established a wireless R&D organization for Olympus Corp. and designed the business and strategic plans for its operation. Developed a technology roadmap for wireless communication & networking for Olympus’ products. Technologies of focus included UWB, Wireless USB, Bluetooth 3.0, Wireless IP/DLNA) and digital terrestrial broadcasting (ISDB-T). Developed engineering plans and roadmaps, business plans and proposals, budgets, P&L, etc. Hired, motivated, and actively led a team of multi-disciplinary (System, HW, SW, Applications) engineers for wireless communication and networking technology development. Oversaw and participated in all aspects of modem design and development, incl. system, software, hardware, platform, standards, patents. Established relationships with key partners in order to enable development of end-to-end solutions with limited resources. Established and enforced strict engineering development processes (documentation, reviews, test procedures, etc.). Interfaced with a variety of customers and suppliers in Japan and the US. Managed vendors and their contract negotiations. Created standards and patent strategies, resulting in over 30 patent applications in 3 years. Attended and contributed to WiMedia/MBOA standard and trained attending members in standards techniques and politics. Hands-on involvement in system engineering and architectural designs.
2000-2003 Quicksilver Technology, San Jose, CA
Director of Engineering
Successfully managed and contributed to key technical issues on design, simulation, and implementation of hardware systems for various parts of cellular (cdma2000 WCDMA), and WLAN technologies (802.11a). Led several NRE projects for major customers (Nokia, Toyota, Matsushita, NTT Docomo, …). Established a remote technology center (in San Diego) & led a team of engineers for wireless/cellular application development based on Quicksilver’s ACM (Adaptive Computing Machine) reconfigurable hardware and associated software platform. Wrote project proposals, interfaced with customers (Japan, Europe, US). Led multi-disciplinary project teams across multiple geographical sites. Received high marks from customers on quality and performance. Designed and implemented processes necessary to maintain high quality and efficient engineering development. Helped define Architecture, Tools and Operating System roadmaps. Helped Marketing team with technical presentations and proposals to customers. Filed several patents. Ran competitive analyses of Qualcomm and Sony Ericsson phones.
1997-2000 Nokia Mobile Phones, San Diego, CA
Senior Member of Technical Staff, Communication Systems Engineering
Designed, simulated, and implemented various system and DSP algorithms for IS-95 and cdma2000 mobile phones (searcher enhancements, quick paging channel detection, phase estimation, Viterbi decoding for paging channel, baseband filter, Multi-carrier 3x filtering, etc.). Developed both in floating-point and in bit-exact fixed-point simulation systems using C and SPW. Member of the review committee for Communication Systems and DSP algorithms implemented on Nokia CDMA phones. Attended and contributed to the standardization of TIA/EIA-95B and cdma2000 (TR45.5, 3GPP2). Evaluated 1Extreme and EVDO proposals in standards meetings. Worked on base station emulator platform development project.
1995-1997 Ameritech Cellular, Chicago, IL
Senior Engineer, Advanced Technology
Oversaw the design and deployment of the first CDMA cellular network in Chicago. Developed detailed procedures and acceptance criteria for CDMA system deployment and optimization. Supervised and ran numerous field tests on different aspects of the system and network. Interfaced with base station and handset manufacturers as well as other cellular operators. Evaluated performance of early CDMA handsets (Qualcomm, NEC, Sony, etc.) in the field and in the lab. Analyzed and refined Stage 3 Interoperability test procedures; monitored and analyzed the test results. Conducted simulation analyses and field tests to understand the impact of receiver intermodulation products on the performance of the handsets in unfriendly conditions. Chaired CDG (CDMA Development Group) Power Balancing Team. Attended and made contributions to TR45.5 and CDG task groups. Attended and contributed to Lucent (formerly AT&T) RF Engineering Group, working on all aspects of CDMA system engineering using Lucent base stations. Managed the development of a series of computer programs to enhance and optimize the field data analysis process. Participated in contract negotiations and maintenance with Lucent. Created and headed the Technical Exchange Forum, wherein technical CDMA problems/questions were discussed and resolved. Evaluated new products and technologies: smart antennas, superconductive filters, air-ground cellular communication, third generation cellular systems, etc.
1992-1994 LCC, Arlington, VA
Project Manager
Designed cellular and indoor wireless PBX systems. Analyzed interference problems in cellular systems. Researched and analyzed topics in 2.5G technologies including interference issues with fixed microwave links. Helped write the Design Engineering Procedure manual. Managed a team of 11 engineers in cellular/PCS/ESMR/TDMA RF network design, implementation, optimization, and expansion. Developed a phased, just-in-time training curriculum for network design engineers and managers, consisting of over 40 short courses, which integrated theory with practice. Taught technical courses in the Cellular Institute. Wrote proposals for and interfaced with clients (national and international).
