CBS Laboratories

Last updated
CBS Laboratories Logo CLD logo.jpg
CBS Laboratories Logo

CBS Laboratories or CBS Labs (later known as the CBS Technology Center or CTC) was the technology research and development organization of the CBS television network. Innovations developed at the labs included many groundbreaking broadcast, industrial, military, and consumer technologies.

Contents

History and significant technological achievements

CBS Labs in Stamford, CT CBS labs.jpg
CBS Labs in Stamford, CT

CBS Laboratories was established in 1936 in New York City to conduct technological research for CBS and outside clients. In October 1957, CBS President Dr. Frank Stanton, speaking during the ground-breaking ceremonies for a new CBS Laboratories building in Stamford, Conn. said: "Our objective in establishing the Laboratories is to continue CBS leadership in communications and electronics and provide broader research and development services."

One year later, a group of 60 engineers and scientists, led by Dr. Peter Goldmark, left New York City and moved into the new 30,000 square-foot facility. The results of their efforts over the next 20 years resulted in a steady growth in facilities, personnel, sales, product development and technological leadership.

Laboratory facilities grew to include five well-equipped buildings totaling more than 200,000 square feet. Six major departments were engaged in a wide range of research and development programs for government, industry, education, medicine and the broadcasting field.

The total staff grew to more than 600 people, one-third of whom were professionals. Many of these professionals were internationally renowned in their respective fields and helped establish CBS Laboratories as a leader in electronics and communications research and development.

Dr. Peter Goldmark joined CBS Laboratories in 1936. On September 4, 1940, while working at the lab, he demonstrated the Field-Sequential Color TV system. [1] It utilized a mechanical color wheel on both the camera and on the television home receiver, but was not compatible with the existing post-war NTSC, 525-line, 60-field/second black and white TV sets as it was a 405-line, 144-field scanning system. [2] It was the first color broadcasting system that received FCC approval in 1950, and the CBS Television Network began broadcasting in color on November 20, 1950. [3] However, no other TV set manufacturers made the sets, and CBS stopped broadcasting in field-sequential color on October 21, 1951. [3]

Nevertheless, the Field Sequential Color System was selected to televise the real-time broadcasts from the Moon during the Apollo 14 Moon landing, since it uses far less bandwidth than the NTSC system.

Goldmark’s interest in recorded music led to the development of the long-playing (LP) 33-1/3 rpm vinyl record, which became the standard for incorporating multiple or lengthy recorded works on a single audio disc for two generations. The LP was introduced to the market place by Columbia Records in 1948.

In 1959 the CBS Audimax I Audio Gain Controller was introduced. It was the first of its kind in the broadcasting industry, and updated versions (Audimax 4440) continued to be manufactured by Thompson-CSF, which acquired the technology after the Labs were closed. [4] In the 1960s the CBS VoluMax Audio FM Peak Limiter was introduced, also the first of its kind in the broadcasting industry. Both the Audimax and VoluMax were considered the “gold standard” for audio processing used in the AM/FM and Television Broadcasting industry. [5]

At the same time, CBS Laboratories developed a solid-state character generator, a crucial component of the VIDIAC (Visual Information Display and Control) system built for the Air Force by a collaboration of several companies. Known as the "magnetic memory character generator," this component was responsible for storing and retrieving high quality alphanumeric characters, which was essential for the high-speed data display. [6]

Electronic Video Recording was announced in 1967. In 1966, the CBS Vidifont was invented. It was the first electronic graphics generator used in television production. Brought to the marketplace at the NAB in 1970, it revolutionized television production. [7] The minicam was developed for use in national political conventions in 1968. In 1971, a backwards-compatible 4-channel encoding technique was developed for vinyl records, called SQ Quadraphonic, based on work by musician Peter Scheiber and Labs engineer Benjamin B. Bauer.

That same year, CBS Labs Staff Scientist Dennis Gabor received the Nobel Prize in Physics for earlier work on holography. Upon Peter Goldmark's retirement, also in 1971, Senior Vice President Renville H. McMann assumed the role of Labs President.

Called the "Photograph of the Century" by space scientists, this first close-up picture of the crater Copernicus taken by the Lunar Orbiter was scanned and digitized by The CBS Laboratories film scanning system and transmitted back to Earth. Copernicus.gif
Called the "Photograph of the Century" by space scientists, this first close-up picture of the crater Copernicus taken by the Lunar Orbiter was scanned and digitized by The CBS Laboratories film scanning system and transmitted back to Earth.

At the same time that CBS Laboratories developed technologies for the CBS Television Network, it also took on similar work for the Government. CBS Laboratories was selected by NASA Manned Spacecraft Center to provide the voice recorder for the Gemini space program (1964 - 1966). The Labs designed and built a very small (2.5 in square x .415 in thick) and reliable onboard voice recorder. [8]

An aerospace qualified film scanning system, consisting of a CBS Laboratories Line Scan Tube was developed for the Lunar Orbiter program to read out the processed film images taken by the Orbiter for transmission back to Earth. [9]

The CBS Laboratories Reconotron all-electrostatic image dissector tube was developed for the 1964 Mariner IV Mars mission as an azimuth star tracker, then was modified for the 1967 Mariner V Venus mission in order to withstand the intense planetary illumination. The sensor was further modified for the 1969 Mariner mission to Mars to survive the more severe launch environment and to provide greater capability for automatic search, identification, and tracking. [10]

In 1964 the Mergenthaler Co. and CBS Laboratories won a GPO contract to build a machine called the Linotron. The Linotron took a computer magnetic tape from the publishing agency that had been programmed through GPO’s computers, and composed the data in 6-point type at the rate of a page every 10 to 12 seconds, up to 1,000 characters per second, justified including upper and lower case letters, resulting in a page negative made up and ready to be plated and printed. This was accomplished using a highly-specialized Cathode Ray Tube developed by CBS Laboratories which had unequaled geometric fidelity and resolution. The introduction of the Linotron was characterized as “the most important development in composition since the introduction of the Linotype machine at the turn of the century.” [11]

The first Linotron went into operation in October 1967 and the second a year later. The dean of the Senate and Chair of the JCP, Senator Carl Hayden of Arizona, pressed the key starting the Linotron 1010 on its first job, the Federal Supply Catalog. The Linotrons cost $2.3 million to develop and install, but in the first 13 months of operation the savings were estimated at $900,000. With it, “it can truly be said that in 1968 the Government Printing Office entered the electronic printing age.” [11]

A detailed discussion and description of the Linotron system can be found here. [12]

CBS Laboratories was a leader in the development of Electron Beam Recorders, (EBR), which use a finely focused beam of electrons to record information onto film.  Because the electron beam has no inertia, it can be electromagnetically scanned over the film at a very high speed.  Also, because it is focused using a magnetic field, instead of glass lenses, the electron beam can be focused to a much smaller spot than laser or other optical methods, on the order of a half-millionth of an inch.

One of the applications of the Electron Beam Recorder was in the ERTS-Landsat system, whose mission was to capture images of the Earth's surface in different spectral bands to provide data for Earth resource management and environmental monitoring. ThE ERTS satellites generated an immense amount of data, which was transmitted to dedicated ground stations to be recorded and processed for analysis. The ERTS EBR was a crucial part of the ground-station-based image data recording system, [13] capable of producing a thousand 70mm archival quality film images per day, from which all the other ERTS photographic products were produced.

During the Vietnam War, CBS Laboratories developed and produced the scanning and recording equipment for the Compass Link system, which provided one-way, near-real-time secure transmission of photographic and other battlefield imagery via satellite relays from Vietnam to Hawai'i and Washington, DC. Using available equipment, in many cases at the breadboard stage, it was developed, deployed and operational in the field and on shipboard 73 days after approval to proceed. Philco-Ford provided the satellite communications systems. [14]

In 1969, CBS Laboratories developed an advanced, state-of-the-art, MIL-Spec In-Flight Photo-Processor Scanner (IPPS) for JIFDATS (the Joint Services In-Flight Data Transmission System).  Mounted in an external pod on a Mach-2, RF-4C reconnaissance aircraft, the target images from a KS-87 airborne film camera were processed, scanned and transmitted within 12 minutes of acquisition to a ground-based Image Interpretation Facility. [15]

CBS Laboratories technical publications

In addition to designing and building commercial and government products and systems, the technical staff was also contracted to write reports and analyses for government clients. Although most of the reports remain classified, a few have been unclassified and are available in the public domain. [16] [17] [18] [19] [20] [21] [22]

Sale of CBS Laboratories and subsequent history

In 1974, CBS Corp., under then-President Arthur R. Taylor, made the decision to focus on its primary media and broadcasting operations, away from the Government R&D and commercial product development, and divest these non-core assets. [23] As part of this reorganization, the CBS Laboratories Professional Products Department, which manufactured the products developed by the Labs for sale to the broadcast industry, was sold to Thomson-CSF. [24]

The remainder of CBS Laboratories, including all of its Government research and development activities, was acquired in 1975 by EPSCO Corp., based in Buffalo, NY, for the purpose of enhancing its technological capabilities and facilitating the entrance into new Government markets. EPSCO renamed the business as Epsco Labs, and after an unsuccessful attempt to convince the CBS Laboratories personnel to relocate to Buffalo, NY, EPSCO moved the complete operations and staff to a facility in Wilton, CT. The two original CBS Laboratories buildings on High Ridge Road in Stamford, CT were razed and the property sold.

Although EPSCO Corp. immediately began the process of novating the CBS Laboratories government R&D contracts to EPSCO, the process turned out to be much more time-consuming than EPSCO anticipated, due to the legal and regulatory implications involved in obtaining Government and Contracting Agency approvals of the many classified programs underway at CBS Laboratories. This year-long time delay greatly increased EPSCO's ongoing costs of funding the acquisition, to the point where EPSCO made the decision to liquidate the entire Epsco Labs facilities, staff and operations in 1976. As a result, all of the assets of the Laboratories, including all machinery, optical equipment, vacuum equipment, electronics, test facilities and equipment, as well as the office equipment, photo lab, machine shop and printing department were sold at auction over a four-day period in late May, 1976.

Patents

CBS Laboratories' staff registered approximately 100 patents in the fields of television, quadraphonic sound, scanning devices, laser scanning and recording, film handling systems, image and character generation, noise monitoring, hydrophones, forming electrophoretic and photoemissive surfaces, diffraction optics, photo-electronic imaging, electron guns, and more.

Emmy awards for CBS Laboratories

[25]

Awards and industry recognition for CBS Laboratories staff

Nobel Prize awarded to CBS Laboratories Staff Scientist

The 1971 Nobel Prize in Physics was awarded to Dr. Dennis Gabor, Staff Scientist at CBS Laboratories, who was also affiliated with the Imperial Colleges of Science and Technology, London, United Kingdom, “for his invention and development of the holographic method.” A description of his work, given at his Nobel Prize Lecture, can be found here. [26]

David Sarnoff Medal Recipients for CBS Laboratories Technical Staff

[27] 1969: Peter C. Goldmark

1976: Adrian B. Ettlinger

1977: Renville H. McMann

1989: William E. Glenn

Related Research Articles

<span class="mw-page-title-main">Analog television</span> Television that uses analog signals

Analog television is the original television technology that uses analog signals to transmit video and audio. In an analog television broadcast, the brightness, colors and sound are represented by amplitude, phase and frequency of an analog signal.

<span class="mw-page-title-main">Television</span> Telecommunication medium for transmitting and receiving moving images

Television (TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set rather than the medium of transmission. Television is a mass medium for advertising, entertainment, news, and sports. The medium is capable of more than "radio broadcasting," which refers to an audio signal sent to radio receivers.

<span class="mw-page-title-main">Video</span> Electronic moving image

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) systems, which, in turn, were replaced by flat-panel displays of several types.

<span class="mw-page-title-main">John Logie Baird</span> Scottish inventor, known for first demonstrating television (1888–1946)

John Logie Baird was a Scottish inventor, electrical engineer, and innovator who demonstrated the world's first mechanical television system on 26 January 1926. He went on to invent the first publicly demonstrated colour television system and the first viable purely electronic colour television picture tube.

<span class="mw-page-title-main">Color television</span> Television transmission technology

Color television or colour television is a television transmission technology that includes color information for the picture, so the video image can be displayed in color on the television set. It improves on the monochrome or black-and-white television technology, which displays the image in shades of gray (grayscale). Television broadcasting stations and networks in most parts of the world upgraded from black-and-white to color transmission between the 1960s and the 1980s. The invention of color television standards was an important part of the history and technology of television.

<span class="mw-page-title-main">Shadow mask</span> Metal sheet with hundreds of thousands of holes, used in CRTs to correctly align colors

The shadow mask is one of the two technologies used in the manufacture of cathode-ray tube (CRT) televisions and computer monitors which produce clear, focused color images. The other approach is the aperture grille, better known by its trade name, Trinitron. All early color televisions and the majority of CRT computer monitors used shadow mask technology. Both of these technologies are largely obsolete, having been increasingly replaced since the 1990s by the liquid-crystal display (LCD).

<span class="mw-page-title-main">Video camera tube</span> Device used in television cameras

Video camera tubes are devices based on the cathode-ray tube that were used in television cameras to capture television images, prior to the introduction of charge-coupled device (CCD) image sensors in the 1980s. Several different types of tubes were in use from the early 1930s, and as late as the 1990s.

<span class="mw-page-title-main">Mechanical television</span> Television that relies on a scanning device to display images

Mechanical television or mechanical scan television is an obsolete television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode-ray tube (CRT) televisions. Subsequently, modern solid-state liquid-crystal displays (LCD) and LED displays are now used to create and display television pictures.

<span class="mw-page-title-main">Peter Carl Goldmark</span> Hungarian-American inventor (1906–1977)

Peter Carl Goldmark was a Hungarian-American engineer who, during his time with Columbia Records, was instrumental in developing the long-playing microgroove 331⁄3 rpm phonograph disc, the standard for incorporating multiple or lengthy recorded works on a single disc for two generations. The LP was introduced by Columbia's Goddard Lieberson in 1948. Lieberson was later president of Columbia Records from 1956–1971 and 1973–1975. According to György Marx, Goldmark was one of The Martians.

<span class="mw-page-title-main">Iconoscope</span>

The iconoscope was the first practical video camera tube to be used in early television cameras. The iconoscope produced a much stronger signal than earlier mechanical designs, and could be used under any well-lit conditions. This was the first fully electronic system to replace earlier cameras, which used special spotlights or spinning disks to capture light from a single very brightly lit spot.

The 405-line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting. The number of television lines influences the image resolution, or quality of the picture.

<span class="mw-page-title-main">History of television</span>

The concept of television is the work of many individuals in the late 19th and early 20th centuries. The first practical transmissions of moving images over a radio system used mechanical rotating perforated disks to scan a scene into a time-varying signal that could be reconstructed at a receiver back into an approximation of the original image. Development of television was interrupted by the Second World War. After the end of the war, all-electronic methods of scanning and displaying images became standard. Several different standards for addition of color to transmitted images were developed with different regions using technically incompatible signal standards. Television broadcasting expanded rapidly after World War II, becoming an important mass medium for advertising, propaganda, and entertainment.

<span class="mw-page-title-main">Television systems before 1940</span>

A number of experimental and broadcast pre World War II television systems were tested. The first ones were mechanical based and of very low resolution, sometimes with no sound. Later TV systems were electronic.

Bernard Marshall Gordon is an American engineer, inventor, entrepreneur, and philanthropist. He is considered "the father of high-speed analog-to-digital conversion".

Electronic Video Recording, or EVR, was a film-based video recording format developed by Hungarian-born engineer Peter Carl Goldmark at CBS Laboratories in the 1960s.

A field-sequential color system (FSC) is a color television system in which the primary color information is transmitted in successive images and which relies on the human vision system to fuse the successive images into a color picture. One field-sequential system was developed in 1940 by Peter Goldmark for CBS, which was its sole user in commercial broadcasting. The Federal Communications Commission adopted it on October 11, 1950, as the standard for color television in the United States. Its regular broadcast debut was on June 25, 1951. However, a few months later, CBS ended color broadcasting on October 20, 1951. In March 1953, CBS withdrawn its color system as a standard, creating an opening for all-electronic color systems from other manufacturers.

The Chromatron is a color television cathode ray tube design invented by Nobel prize-winner Ernest Lawrence and developed commercially by Paramount Pictures, Sony, Litton Industries and others. The Chromatron offered brighter images than conventional color television systems using a shadow mask, but a host of development problems kept it from being widely used in spite of years of development. Sony eventually abandoned it in favor of their famous Trinitron system using an aperture grille.

The Geer tube was an early single-tube color television cathode ray tube, developed by Willard Geer. The Geer tube used a pattern of small phosphor-covered three-sided pyramids on the inside of the CRT faceplate to mix separate red, green, and blue signals from three electron guns. The Geer tube had a number of disadvantages and was never used commercially due to the much better images generated by RCA's shadow mask system. Nevertheless, Geer's patent was awarded first, and RCA purchased an option on it in case their own developments didn't pan out.

The following timeline tables list the discoveries and inventions in the history of electrical and electronic engineering.

375-line corresponds to two different electronic television systems, both using 375 scan lines. One system was used in Germany after 1936 along with the 180-line system, being replaced in a few years by the superior 441-line system. It was also tested in Italy around the same time.

References

  1. ↑ "Color Television Achieves Realism". New York Times. 1940-09-05. p. 18.
  2. ↑ O'Neil, James E. (2009-07-21). "Equipping Apollo for Color Television". TV Technology. New York: NewBay Media. Archived from the original on 2013-10-19. Retrieved 2013-10-18.
  3. 1 2 Hugh Richard Slotten (2000). Radio and Television Regulation: Broadcast Technology in the United States 1920–1960. Baltimore: Johns Hopkins University Press. pp. 189–197. ISBN   978-0-8018-6450-6.
  4. ↑ Vernon, Tom (January 25, 2018). "Recalling the CBS Audimax 4440". RadioWorld. Retrieved September 27, 2024.
  5. ↑ Hank Mahler, developer of the SMPTE color bars, passes away from TVTechnology.com, 10/13/21
  6. ↑ Moore, J.K., Kronenberg, M. (June 10, 1960). "Generating High Quality Characters and Symbols" (PDF). Electronics: 55–59 – via World Radio History.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ↑ S. Baron, “Inventing the Vidifont: the first electronic graphics generator used in television production,” IEEE History Center (www.ieeeghn.org), 11 December 2008.
  8. ↑ Sharpe, Mitchell R.; Hacker, Barton C.; Grimwood, James M. (January 1979). "On the Shoulders of Titans: A History of Project Gemini". Technology and Culture. 20 (1): 238. doi:10.2307/3103142. ISSN   0040-165X. JSTOR   3103142.
  9. ↑ Hall, R. C. (2001-10-01). SAMOS to the Moon: The Clandestine Transfer of Reconnaissance Technology Between Federal Agencies (Report). Fort Belvoir, VA: Defense Technical Information Center. doi:10.21236/ada599956.
  10. ↑ Goss, W. C. (1970-05-01). "The Mariner Spacecraft Star Sensors". Applied Optics. 9 (5): 1056–1067. Bibcode:1970ApOpt...9.1056G. doi:10.1364/AO.9.001056. ISSN   2155-3165. PMID   20076329.
  11. 1 2 "Keeping America Informed: The United States Government Printing Office: 150 Years of Service to the Nation" (PDF). US Government Printing Office. June 2011. p. 97. Retrieved 8 September 2024.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  12. ↑ "A Picture worth a Thousand Words" (PDF). Electronics Magazine: 113–128. April 3, 1967.
  13. ↑ "Landsat 1 The World's First Earth Observing Satellite". ArcGIS StoryMaps. September 15, 2021. Retrieved September 27, 2024.
  14. ↑ Colwell, Robert F. (1971-11-23). Project CHECO Southeast Asia Report. USAF Tactical Reconnaissance in Southeast Asia, July 69-June 71. Part 3 (Report). Fort Belvoir, VA: Defense Technical Information Center. doi:10.21236/ada490469.
  15. ↑ Leiboff, T. N. (October 1972). "Automatic Acquisition and Tracking Methods Employed in JIFDATS" (PDF). AGARD Conference Technical Meeting (4–1).{{cite journal}}: CS1 maint: date and year (link)
  16. ↑ Botticelli, R. A., Cook, F. J., Moore, R. F. (25 February 1972). Electrostatic Camera System Functional Design Study, Final Report. Stamford, CT.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link) CS1 maint: multiple names: authors list (link)
  17. ↑ Botticelli, R. A., Johnson, R. O., Wallmark, G. N. (June 30, 1973). The Applicability of Frame Imaging from a Spinning Spacecraft, Volume 1, Summary Report. Stamford, CT.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link) CS1 maint: multiple names: authors list (link)
  18. ↑ Botticelli, R. A., Johnson, R. O., Wallmark, G. N. (June 30, 1973). The applicability of Frame Imaging from a Spinning Spacecraft, Volume 2, Technical Report. Stamford, CT.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link) CS1 maint: multiple names: authors list (link)
  19. ↑ Linden, B. R., Wilder, M. P. (January 1, 1962). Characteristics of photocathodes under high light levels. New York, NY.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link) CS1 maint: multiple names: authors list (link)
  20. ↑ Karpinski, J. (December 1, 1965). Short wide angle, 1-1/2 inch electrostatic image dissector with parallel plate resistive strip electronic multiplier Final report. Stamford, CT.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link)
  21. ↑ Karpinski, J. Z. (December 13, 1965). One year life test of 1-1/2 inch image dissector Final report.{{cite book}}: CS1 maint: date and year (link)
  22. ↑ Karpinski, J. Z. (May 15, 1966). The development of sterilizable image dissector tubes Final report, 15 Apr. 1964 - 15 May 1966. Stamford, CT.{{cite book}}: CS1 maint: date and year (link) CS1 maint: location missing publisher (link)
  23. ↑ Perry, Robert (October 4, 1974). "Labs ARE For Sale, CBS Official Admits". The Advocate (Stamford, CT Newspaper).
  24. ↑ "IEEE Spectrum - News From Industry, page 79". May 1975. Retrieved September 27, 2024.
  25. ↑ "National Academy of Television Arts and Sciences - Outstanding Achievement in Technical/Engineering Development Awards" (PDF). National Academy of Television Arts and Sciences. November 2007. Archived from the original (PDF) on 2009-03-26.
  26. ↑ Gabor, Dennis (December 11, 1971). "HOLOGRAPHY, 1948-1971" (PDF). NobelPrize.org. Retrieved September 23, 2024.
  27. ↑ "David Sarnoff Medal Recipients | Society of Motion Picture & Television Engineers". www.smpte.org. Retrieved 2024-09-20.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.