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March 2020 - Sacramento Section Meeting-Cancelled

March 2020 - Sacramento Section Meeting-Cancelled


Event Details: 

In the interest of caution for the health and safety of our SMPTE friends concerning the Corvid-19/Coronavirus, we have decided to postpone our March SMPTE meeting.As we normally do not have meetings in April, we are tentatively rescheduling our March meeting for May 20.We will be in touch as we get closer to that date.


Hi Folks:
Here’s the announcement for our March meeting.

Date:                     Wednesday, March 18, 2020

Time:                     Food/Drink/Social:           6:00 pm

                              Meeting Start Time:        6:30 pm

Location:              AJA Video

                                180 Litton Dr.

                                Grass Valley, CA 95945

Contact:               Bob Hudelson – 530-615-8151

Speaker:              Peter Symes, Owner at Symes TV Consulting


The TLX Project – a Successor to SMPTE Time Code?

SMPTE Time and Control Code, to give it its full title, was initially developed in 1969.  It is now represented by three parts of the ST 12 Standard, and has been updated and enhanced many times.  The latest, and almost certainly the last, update was ST 12-3, published in 2016, offers limited support for higher frame rates.

ST 12 is probably the most used of all SMPTE standards.  It has proved flexible and durable, but the update process has become increasingly complex and cumbersome, and it is unlikely that further backward-compatible  updates will be possible.  It is still a viable standard, and will continue to serve for many years to come, but the time has come to develop a successor – one that addresses the shortcomings of ST 12 and is more suited to today’s environment.

Various projects within SMPTE failed to achieve consensus because of competing philosophies, and a “boil the ocean” approach.  The TLX (Time Label eXtensible) Project set a specified set of objectives, including the requirement for an extension mechanism to address future requirements.  This presentation will include a brief history, the objectives of the TLX Project, and a progress report.

About the speaker:

Symes’ early career included positions in the BBC Studio Planning & Installation Department, Philips Broadcast, and Central Dynamics Limited.

From 1983 to 2007 he worked at Grass Valley, with positions responsible for product planning, strategic planning, and intellectual property management. In 2007 Symes joined the staff of SMPTE as Director of Standards & Engineering, a position held until retirement in 2016.  Today, he is the owner of Symes TV Consulting, offering technical and patent-related services to the industry.

Symes holds three patents and is the author of books on video compression. He is a Life Fellow of SMPTE, a Senior Member of the IEEE, and a Certified Standards Professional (2013) by the Society for Standards Professionals (SES).

Light refreshments will be provided by AJA Video.

Non-members and guests are welcome to attend. SMPTE annual memberships are available on-line (https://www.smpte.org/join) and start at $75 for an individual and $15 for students. 

For questions about this meeting, please contact any Section officer.

We hope to see you there.