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1993 - 1995 Digital HDTV Grand Alliance Development

Formation of the Grand Alliance

Jan-April 1993 – Competitive activities proceed at NAB 93 as each proponent makes system improvements and contemplates re-testing of improved systems

 

March 1993 – With FCC Advisory Committee (ACATS) encouragement, discussions begin amidst Industry speculation

                             Broadcasting & Cable  |   Multichannel News  

 

April 12, 1993  – Plans are finalized for Technical discussions

 

April 14-15, 1993  Grand Alliance Technical Meetings are held

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May 11, 1993 - ATRC proposes details of Grand Alliance video compression tests 

 

May 20, 1993 - Final discussions take place 

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May 24, 1993 - Digital HDTV Grand Alliance is formed. (WSJ  and NYT press coverage)

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June 2, 1993 -  A first explanation of the Grand Alliance agreement and working process

Designing and Building the "Best-of-the Best"

Oct 21, 1993 – Key technical decisions are announced.  MPEG compression (including B-frames), MPEG packet transport. Comparative testing results in the selection of Dolby’s AC-3 audio subsystem

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Jan 1994 – Comparative laboratory testing of Zenith's VSB hardware and General Instrument's QAM hardware results in the selection of Zenith’s VSB transmission subsystem

 

Feb 1, 1994 - A Grand Alliance status report (Glenn Reitmeier, Sarnoff/Thomson report) provides context on ACATS history, Grand Alliance  organization and its anticipated schedule.

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The Grand Alliance  organization chart  shows the key role of the Technical Oversight Group (TOG) and the various Technical Experts Groups on Format, Compression, Transport, Transmission, Audio, Systems and Interoperability. 

 

Technical decisions often had ramifications across multiple Expert Groups and they were adjudicated by the TOG, which came to a consensus on all key technical decisions

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The Public Relations Group  became the Communications Strategy Group (CSG), which charted the course of the alliance and its drive to establish a digital HDTV standard.  The CSG was chaired by Bruce Allan (Thomson) and included Robert Graves (AT&T), Glenn Reitmeier (Sarnoff), John Taylor (Zenith) and Alan Schlosser  (consultant).

1994 – Design and construction of Grand Alliance prototype hardware begins: Video Compression Encoder (AT&T), Data Packet Encoder (Sarnoff), Data Packet decoder (Thomson), Video Decoder (Philips) and Video Format Converter (AT&T and Sarnoff). System Integration will be performed at Sarnoff.

March 20, 1994 - The Grand Alliance reports on its progress at NAB (the National Association of Broadcasters annual convention

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      Grand Alliance planning:  GA NAB94 plan  |  GA Q&A prep

      "Pardon Our Dust - System Under Construction" sign

      Interoperability Aspects of the Grand Alliance HDTV System, Glenn Reitmeier, Sarnoff

      Grand Alliance Video Compression System

      Grand Alliance HDTV Audio Subsystem - Dolby AC-3, Craig Todd (Dolby)

      Grand Alliance Transmission System - VSB,  Wayne Luplow (Zenith)

      Grand Alliance HDTV Video Formats,  Bob Keeler (AT&T)

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       NAB 94 Grand Alliance Press Releases

 

The Press Releases provide excellent background and context. They optimistically predict that the standard will be set in 1995 and that receivers could go on sale as early as late 1996.  [The ATSC standard was indeed set in Sept 1995;  Controversy and politics delayed FCC approval until late 1996 and consequently the first consumer receivers became available in early 1998]

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April 14, 1994 - Grand Alliance System Description v1 documentation is completed and submitted to ACATS

 

April 19, 1994 - The ACATS Technical Subgroup Master Calender is revised.  Testing of the Grand Alliance prototype system was targeted for Nov. 1994 and the completion of all testing and reports by Mar 31, 1995 [Ironically, this was the date that the Grand Alliance actually shipped its two prototypes for testing and to it's world premiere demonstration at NAB 95]

May 10-11, 1994 – NIST Digital Video Workshop is held to "highlight technical issues for industry and government decision makers with respect to advanced digital video (ADV) in the National Information Infrastructure (NII)…"  The Grand Alliance system is a key element of the workshop.  The Workshop Report states that "The Grand Alliance proposal for digital, terrestrial broadcast of HDTV incorporates several features to achieve interoperability with NII-type services..."  but it marked the beginning of growing opposition from the computer industry

 

July 1-14, 1994 - Work is in progress among Grand Alliance members to lock down the prototype hardware construction schedule.   As the hardware architecture and interfaces become more defined, more realistic planning moves the estimated start of testing from mid-November 1994 to late January 1995.  The additional requirement of a very high quality 1080i to/from 720 format converter (by AT&T and Sarnoff) had been a previously unplanned task. 

 

Sept 23, 1994 - After a period of conceptualization and planning its key messages for various industry and government stakeholders, the final version of the Grand Alliance Washington Demonstration script is agreed upon, and production begins.

    Watch the Grand Alliance Washington Demonstration Video

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Dec 7, 1994 - Grand Alliance System Description v2 documentation is completed and submitted to ACATS.  This document became the basis for the ATSC Digital Television standard

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Dec 1994 - John Taylor (Zenith) reports the Grand Alliance's progress in the IEEE Consumer Electronics Society Newsletter

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System Integration

Jan - March 1995 – Ongoing system integration at Sarnoff’s Field Lab.  Sarnoff leads system integration of subsystems built by various companies: 

  - Video Format Converter (Sarnoff and AT&T)

  - Video Compression Encoder (AT&T and General Instrument)

  - Audio Compression Encoder (Dolby) Packet Data Encoder (Sarnoff)

  - 8-VSB Transmission and Reception (Zenith)

   - Packet Data Receiver (Thomson)

  - Audio Decoder (Dolby)

  - Video Decoder (Philips)

 

March 30, 1995 – System integration at Sarnoff’s Field Lab is completed. 

 

                              Photos  (below)  |   Video (Glenn Reitmeier)

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GA team in Field Lab (300)

GA Tech Leaders Luplow, Reitmeier, Rast, Smith Cerbone, Lim, Cugnini

GA Terry Glenn

Terry Smith and Glenn Reitmeier (Sarnoff)

GA Terry Glenn Hi5

Terry and Glenn Hi5

GA_Field_Lab01
GA_Field_Lab02
GA_Field_Lab07

Paul Lyons and Vic D'Allesandro (Sarnoff)

GA_Field_Lab_11

Paul Lyons and Vic D'Allesandro (Sarnoff)

GA_Field_Lab_10

Jim Carnes and Terry Smith (Sarnoff)

GA_Field_Lab08

Paul Lyons and GA Transport Packet Rack

GA_Field_Lab06

Smith, Carnes, Lyons, Reitmeier

GA_Field_Lab05

Carnes, Smith, Reitmeier

GA_Field_Lab04

Jim Carnes (Sarnoff)

GA_Field_Lab03

GA Hardware

GA_Field_Lab09

Sarnoff Engineers

GA_Field_Lab_12

GA Hardware

GA_Field_Lab_13

GA Hardware

Grand Alliance Technical Leaders Complete System Integration at Sarnoff's Field Lab - Mar 30, 1995

Wayne Luplow (Zenith), Glenn Reitmeier (Sarnoff), 

Bob Rast (GI),  Terry Smith (Sarnoff)

Ralph Cerbone (AT&T), Jae Lim (MIT), Aldo Cugnini (Philips)

World Premiere at NAB 95

March 31, 1995 – the two prototype hardware systems are shipped.  One goes to the Advanced Television Test Center and the other goes to the Grand Alliance booth at the NAB convention

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April 9, 1995 - NAB Engineering conference feature a special session with Grand Alliance, ATSC and ACATS speakers

   

   Richard Wiley (ACATS Chairman) presentation  |  audio  

   

   Jae Lim (GA/MIT)  presentation  |  audio

   

   Wayne Luplow (GA/Zenith)  presentation  |  audio

   

   Glenn Reitmeier (GA/Sarnoff)  presentation  |  audio

   

   Peter Symes (Grass Valley) presentation  |  audio

   

   Peter Fannon (ATTC)  presentation  |  audio

   

   Q&A part 1  audio ..................................................

   

   Bob Hopkins (ATSC) presentation  |  audio

   

   John Abel (NAB) presentation  |  audio

   

   Joe Flaherty (ACATS) presentation  |  audio

   

  Saul Shapiro (FCC)  presentation  |  audio

   

  Mike Sherlock (Broadcasters' Caucus / NBC) presentation  |  audio

   

  Q&A part 2   audio 

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April 10, 1995 – The Grand Alliance HDTV system makes its world premiere demonstration at NAB ’95

 

The Grand Alliance Booth featured a large-screen projection display of the prototype hardware and four "kiosk" areas that demonstrated

        RF signal modulation  |  Digital HDTV Picture Quality  |  Flexible Packetized Data Delivery  |  Interactive Advertising

 

Grand Alliance Press Releases  |  Grand Alliance Premiere and press conference video highlights  |  Grand Alliance brochure

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08 - Bob Hopkins
00:0000:00
01 - Richard Wiley
00:0000:00
02 - Jae Lim (MIT)
00:0000:00
03 - Wayne Luplow (GA/Zenith)
00:0000:00
04 - Glenn Reitmeier (GA/Sarnoff)
00:0000:00
05 - Peter Symes (Grass Valley)
00:0000:00
06 - Peter Fannon (ATTC)
00:0000:00
07 Q&A Session #1 - All
00:0000:00
09 - John Abel (NAB)
00:0000:00
10 - Joe Flaherty (ACATS/CBS)
00:0000:00
11 - Saul Shapiro (FCC)
00:0000:00
12 - Mike Sherlock (Broadcasters Caucus/NBC)
00:0000:00
13 - Q&A Session #2 - All
00:0000:00

April 10, 1995 - World Premiere of the Grand Alliance HDTV System at NAB 1995

GA booth NAB95

Grand Alliance NAB 95

GA booth1

Grand Alliance booth at NAB 95

Carnes1

Jim Carnes, Sarnoff

Perlman2

Jerry Perlman, Zenith

GA demo audience

World Premiere Audience

GA QA lineup1

GA Q&A 1

GA QA lineup2

GA Q&A 2

95 GA QA

GA Q&A

GA QA Basile

GA Q&A Carlo basile, Philips

Ga booth2

Grand Alliance prototype hardware (note power lines)

GA HD display

GA HD display

GA HDTV vs NTSC

GA HDTV vs NTSC

95-04-02 Glenn Flexible Use Demo

Glenn Reitmeier, Sarnoff - Flexible Channel Use Demo

GA007

Pallavi Shah, Sarnoff Interactive Ad Demo

95-04 GA Interactive Ad screenshot1

Interactive Ad demo screenshot1

GA006

Pallavi Shah, Sarnoff - Interactive Ad demo2

95-04 GA Interactive Ad screenshot2

Interactive Ad demo screenshot2

GA demo Hundt

GA demo for FCC Chmn Hundt

Hundt demo tour1

FCC Chmn Hundt

Hundt demo tour2

Allan, Hundt, Reitmeier

Hundt demo tour3

Carnes, Hundt, Reitmeier

GA demo station
GA005
GA Philips gang
GA car

34 Packard and 95 HDTV

Testing and Evaluation

April - August, 1995 – The Grand Alliance HDTV system is tested at the ATTC (Advanced Television Test Center) and ATEL (Advanced Television Evaluation Laboratory)

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July 19, 1995 - With the goal to finalize a complete digital HDTV standard based on the Grand Alliance system, ACATS and ATSC start to make technical decisions on issues that are outside the scope of the Grand Alliance itself, such as standard definition video formats. 

 

April - September, 1995 – It becomes obvious that Standard Definition video formats can and should be added to the Grand Alliance System.  Considered "out of scope" by MIT, Grand Alliance members work with other industry representative in the ATSC to debate the merits of various proposed formats and to reach consensus

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Sept. 16, 1995 – the A/53 ATSC Digital Television Standard is completed.  ATSC standardizes the 1080i and 720p square pixel HDTV formats of the Grand Alliance and also includes standard definition 480p and 480i formats, including both square and rectangular pixel options.

 

Oct 4, 1995 - ATSC also publishes a companion A/54 Guide to the Use of the ATSC Digital Television Standard

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Oct 31, 1995 – ACATS Technical Subcommittee meets for a final review of test results for the Grand Alliance system

                      Summaries of:   ATTC test results  |  ATEL Test results  |  CableLabs test results

 

The ACATS Technical Subcommittee issues its Final Technical Report, concluding:

    "1. the Grand Alliance system meets the Committee’s performance objectives and is better than any of the four original digital ATV systems

      2. the Grand Alliance system is superior to any known alternative system; and

      3. the ATSC Digital Television Standard, based on the Advisory Committee design specifications and Grand Alliance system, fulfills the                    requirements for the U.S. ATV broadcasting standard.

      Accordingly, the Technical Subgroup recommends that the ATSC Standard be adopted as the U.S. ATV broadcasting standard."

 

Nov. 11, 1995 – In response to rising objections from the computer industry about interoperability between HDTV and computers, the Grand Alliance stages an extensive interoperability demonstration of live video from camera and computer sources over ATM network  links, satellite and terrestrial broadcast at the MSTV Advanced Television Update.  Although low power, this is the world's first live broadcast of an ATSC signal.

           Grand Alliance Update (Rast),   |   Interoperability Demonstration (Reitmeier)Top 10 HDTV Myths (Perlman)     

        rehearsal video Grand Alliance Encoding Hardware at Sarnoff (Reitmeier)

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Nov 28, 1995 – ACATS issues its Final Report and  Recommendation that the FCC adopt the ATSC standard. (ACATS Press Release)

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Nov 30, 1995 – The Grand Alliance demonstrates its system for Congress Members and staff on Capitol Hill

 

Dec 20, 1995 – ATSC approves the A/52 standard that documents the Dolby AC-3 audio system

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© 2018 Glenn Reitmeier

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