_COOKIE Array ( )

• Consulting (Apr 2013-present)
  • Developed a full-stack system for formatting and distributing transcripts of sports events. Added machine transcription for audio files. Added user-configurable calendar-based embargo. Moved hosting to AWS virtual server. Ongoing development and maintenance.
  • Extended and improved performance on a symfony-based system to re-encode video and audio files.
• Elemental Technologies (Jun 2011-Apr 2013)
  • Designed and wrote Quicktime and Adobe HDS muxer, including caption (c608) and timecode extensions. Extended MXF demuxer to support AS02 (external referencing) and implemented indexing and fast seek. Co-responsible for Adobe RTMP muxer. Integrated Dolby DigitalPlus (AC-3/EAC-3) decoder and Dolby E decoder into product, and modified ffmpeg and MXF demuxers to support them. Designed/wrote subsystem converting NTSC ("608") captions to EIA/CEA-708 DTV captions. Designed/wrote diagnostic scripts to parse and report MPEG-2 and H264 video elementary streams, MPEG-2 system (transport and program) streams, Quicktime/MP4/AdobeHDS streams, MXF and GXF (Smpte 360) streams. Extended cpan Quicktime parser/reporter. Co-developed Stream (remuxer) product.
• Harmonic (Sep 2010-Jun 2011)
  • (Following Harmonic's purchase of Omneon Video Networks). Implemented support for Panasonic AVCI codec in the MIP 7000 series product line. In process: implementing support for another MPEG encoder; implementing H.264 bitstream verifier.
• Omneon Video Networks (Jul 1999 - Sep 2010)
  • Architected, designed, and implemented software for the MediaPort product line, including MPEG program stream demultiplexer, DV, DVCPRO, MPEG, and IMX drivers for the C-Cube codecs, IBM decoders, Zoran/Teralogic decoders (involving extensive re-write of a 475K-line code base to support re-entrancy), MainConcept codec (CPU-based DVCPRO-HD encode and decode), Firewire (1394) AV/C target, drivers for RS422, VITC and LTC, AES/EBU audio, VANC, SDI video, genlock (reference), and an Omneon-designed video FPGA. For the central controller ("Director"), architected, designed, and implemented the AV/C VTR target and Louth listener. Developed bitstream parser/verifiers for MPEG-1/2 video elementary streams, MPEG-2 program streams, MPEG-2 transport streams, DV/DVCPRO25/DVCPRO50/DVCPRO100 streams, and MXF streams. These bitstream tools are used extensively in verification of customer-supplied clips. Responsible for triage of field issues for MediaPort products.
• Tektronix, Inc (Feb 1979 - Jun 1999)
  • Video and Networking Division. I was one of the core team of architects which designed the Emmy-award-winning Profile video disk recorder. I architected, designed, and implemented: Windows NT inter-processor communications library (including some NT kernel drivers), VdrPanel (the primary user-interface GUI), and RS422 protocol listeners (Louth, Odetics, and Sony Betacam). Specified and designed the first release of the Profile RS422 protocol (used by numerous third-party developers). Project leader for the MPEG encoder/decoder system for Profile: architected the system, designed and implemented the decoder system, and supervised and coordinated other engineers in the design of the encoder system.
  • Television Division. Designed video waveform editor and programmable waveform board for TSG1050/1125/1250 HDTV generators. Project leader for TSG1001 programmable HDTV generator (used by the ATTC and CableLabs for testing of proposed HDTV standards for the government). Project leader for PE1001 high-BW PAL generator. Project leader for WFM601 serial-digital waveform generator (fast-track project). Researched algorithms for quantifying quality of compressed-video signals.
  • Portable Oscilloscopes Division. SW project leader for 2245/46/46A/47 scopes. HW/SW architecture; HW design of processor system and front panel; SW design of front-panel, DAC, and A/D system; supervision/coordination of 3 SW and 2 HW engineers.
  • Portable Oscilloscopes Division. Evaluation engineer. Projects included 2235/6/7, 2445/65 scopes.

• MS in Computer and Information Science, University of Oregon.
• MD, Stanford Medical School.
• BS cum laude, Biology, Stanford University.

• US Patent 4,754,205
  "Oscilloscope having auxiliary display of a labeled cursor"
• US Patent 4,743,845
  "Oscilloscope-based signal level measurement system"
• US Patent 4,868,465
  "Sweep generator error characterization"
• US Patent 5,049,880
  "Bit-wise run-length encoding for data compression"
• US Patent 5,214,508
  "Spatial bandwidth testing for digital data-compressed video systems"
• US Patent 5,274,445
  "Three-dimensional testing of video codecs"
• US Patent 5,387,925
  "Test signal generator position cursors"
• US Patent 5,455,620
  "Automatic generation of vector reference graticules"
• Academy of Television Arts & Sciences
  1996 Primetime Emmy Awards
  "Outstanding Achievement in Engineering Development"
• US Patent 5,642,497
  "Digital disk recorder using a port clock having parallel tracks along a timeline with each track representing an independently accessible media stream"
• US Patent 7,876,355
  "Video abnormality detection"

• German: fairly comfortable.
• French: good basic skills.
• Hungarian: beginning/progressing.

• Home address:
  2434 N.W. Quimby Street
  Portland, Oregon 97210-2628
• Email: (anti-spam: remove the CAPs)
  mgfrobozzXXXX@gmail.com
  

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