On July 30, 2017, Mark I. Krivosheyev, one of the Russian scientists who is known worldwide for his works in the field of television technology, celebrates his 95th anniversary. Of these 95 years, as many as 70 he has devoted to his R&D subject of choice - television.
After graduating from the Moscow Institute of Communications Engineers in 1946, he started his career at the Moscow Television Center. There, the young engineer Mark Krivosheyev got actively involved in a project to develop what was known as the 625 - line standard, and in 1948 he used the standard for the first broadcast of a TV program. In 1962, he supervised the development of a television complex for the Molniya satellite-supported communications system, while in 1980 he was in charge of developing a television complex for the transmission of the 1980 Olympic Games.
His greatest successes Mark Iosifovich achieved in international activities. Under his leadership, Study Group 11 (SG11) of the International Telecommunication Union (ITU) produced more than 150 international recommendations on TV broadcasting, many of which have become de facto the industry international standards. As early as in 1972, Mark I. Krivosheyev drew attention to the need for exploring digital and high-definition television. Many experts considered this irrelevant and premature. In their opinion, the industry needed to first cope with the confusion caused by the adoption in different countries of more than a dozen TV broadcasting standards and a total of three color systems, all in different combinations, at that. M.I. Krivosheyev proposed to solve both problems by significantly reducing the speed of digital television signal transmission. Also, a research program on the digital compression of TV signals was proposed and adopted. As a result, at the XV CCIR Plenary Assembly in 1982, the famous Recommendation BT.601 was unanimously adopted, based on the component coding of the TV signal and establishing uniform coding parameters.
Mark I. Krivosheyev put forward a truly revolutionary idea of introducing digital terrestrial, satellite and cable television using existing channels, the signal being compressed tens of times and effective modulation methods applied. This concept was named Concept 6-7-8, reflecting the broadcasting frequency bands of 6, 7, and 8 MHz, adopted in different countries. Many refused to believe the concept would work, but the idea was firmly based on real-life factors, such as the specifics of TV image perception, and advances being made in digital compression techniques and processing / transmission of video data. The challenge was successfully met, bringing to life the appropriate Recommendations VT.798 and BT.1206.
Another major achievement of Mark I. Krivosheyev as Chairman of SG 11 became the adoption of Recommendation BT.709, which regulates the basic values of parameters in HDTV standards for the production and international exchange of TV programs.
In the process of digital TV research, effective methods were identified of compressing video data without compromising on image high quality, making it possible to transmit several compressed digital signals over the satellite channel. At the time, there were at least three different transmission systems in the world for multi-program television. It was therefore decided to develop a Recommendation that would bring them together and describe a universal decoder capable of receiving any of the three signals. Such a Recommendation duly appeared in 1997 under the number BO 1294, to be later replaced with Recommendation BO 1516, the latter taking into account the subsequent development of the ISDB-S system in Japan.
In 2004, Mark Iosifovich was elected Chairman of the First Session of the ITU Conference Radio Regulations Board, which developed the technical basis for planning terrestrial broadcasting. In 2008, on his initiative and in accordance with the strategy he proposed, ITU launched international standardization of three-dimensional TV broadcasting. In 2009, as the founder of video data systems, Mark Iosifovich was elected to supervise the ITU international group on their standardization. The report of the group was approved in 2011. In 2010-2011 years, he developed initial provisions of the new concept underpinning the advancement of television and radio broadcasting for the period up to 2020-2025.
Mark I. Krivosheyev’s accomplishments have been highly appreciated both by the government of our country and by the appropriate international organizations. He was awarded four orders of the USSR and Russia, won the State Prizes of the USSR and the RF, Prizes of the Government of the Russian Federation; he has also received an honorary letter of the President of the Russian Federation and many honorary awards and titles in many countries of the world.
In connection with your anniversary, the management and staff of RSCC are sending their greetings to you, dear Mark Iosifovich! We thank you for your enormous personal contribution to the development of the domestic and global television broadcasting industry. We appreciate the opportunity of working and communicating with you. We wish you the best of health, every successes and new discoveries!