The Institute of Radio Engineers ( IRE ) was a professional organization which existed from 1912 until December 31, 1962. On January 1, 1963, it merged with the American Institute of Electrical Engineers (AIEE) to form the Institute of Electrical and Electronics Engineers (IEEE).
60-650: Ampex Data Systems Corporation is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name AMPEX is an acronym , created by its founder, which stands for A lexander M . P oniatoff Ex cellence. Ampex operates as Ampex Data Systems Corporation, a subsidiary of Delta Information Systems, and consists of two business units. The Silicon Valley unit, known internally as Ampex Data Systems (ADS), manufactures digital data storage systems capable of functioning in harsh environments. The Colorado Springs, Colorado , unit, referred to as Ampex Intelligent Systems (AIS), serves as
120-406: A few for In-flight entertainment . The VR-1500 and VR-660 found service at educational institutions especially due to their relatively low cost vs. 2-inch (51 mm) quadruplex VTRs. These machines were simple to operate, reliable, small in size—and produced, for their time, very good video without the complexity of the larger and much more complex 2" Quad machines. In March 1967, Ampex introduced
180-552: A frame accurate timing computer that enabled frame-accurate cuts and dissolve transitions by way of a two-input video switcher. Slow-motion sequences could likewise be programmed and could be "triggered" to begin via an external control pulse such as might come from an external VTR editor like the Ampex VR-2000 VTR with Editec. The HS-200 was the first system capable of single-frame video animation recording, using magnetic discs as opposed to videotape. The HS-200 also provided
240-512: A high-fidelity movie sound system using sound magnetically recorded on the film itself, as contrasted with the technology of the time, which used magnetic tracks on a separate celluloid base film (later commonly known as mag stock). The result of this development was the CinemaScope / Todd-AO motion picture sound system, which was first used in movies such as The Robe (1953) in 35mm and Oklahoma (1955) in 70mm (and also in 35mm). In 1960,
300-452: A huge impact on developments the whole video signal chain. They did rebadge some specialist low-volume OEM products to complete the package, but their in-house teams developed industry leading products in the following categories: ADO – Ampex Digital Optics provided comprehensive frame manipulation in 2 and 3 dimensions. Adjusting the aspect, size, and rotation of the image was performed continuously in real-time. An optional digital 'combiner'
360-465: A laboratory and hub for the company's line of industrial control systems, cyber security products and services and its artificial intelligence / machine learning technology. Ampex's first great success was a line of reel-to-reel tape recorders developed from the German wartime Magnetophon system at the behest of Bing Crosby . Ampex quickly became a leader in audio tape technology, developing many of
420-503: A readout with specific frame numbers showing from the 900 frames available (NTSC version). Sequences could be triggered to start from any of these 900 frames with frame-accurate repeatability for creative fine tuning of sequence start and end points. 1 inch type A videotape (designated Type A by the Society of Motion Picture and Television Engineers, SMPTE ) was an open-reel helical scan videotape format developed by Ampex in 1965, one of
480-648: A spinning head and relatively slow-moving tape. In early 1956, a team produced the first videotape recorder. A young, 19-year-old engineer Ray Dolby was also part of the team. Ampex demonstrated the VR-1000 , which was the first of Ampex's line of 2-inch Quadruplex videotape recorders on April 14, 1956, at the National Association of Radio and Television Broadcasters in Chicago. The first magnetically recorded time-delayed television network program using
540-674: A technical organization of wireless practitioners in 1908–1912, the Institute of Radio Engineers (IRE) was finally established in 1912 in New York City . Among its founding organizations were the Society of Wireless Telegraph Engineers (SWTE) and the Wireless Institute (TWI). At the time, the dominant organization of electrical engineers was the American Institute of Electrical Engineers (AIEE). Many of
600-483: A total of 12 Emmys for its technical video achievements. In 1959, Richard Nixon , then Vice President, and Nikita Khrushchev held discussions at the Moscow Trade Fair, which became known as the " Kitchen Debate " because they were mostly held in the kitchen of a suburban model house. These discussions were recorded on an Ampex color videotape recorder, and during the debate Nixon pointed this out as one of
660-482: A trip to Radio Frankfurt. The device produced much better fidelity than shellac records. The technological processes in tape recording and equipment developed by German companies before and during the 1939–1945 war were subject to patents which were effectively voided after Germany's 1945 surrender and defeat. Mullin acquired two Magnetophon recorders and 50 reels of BASF Type L tape, and brought them to America, where he produced modified versions. He demonstrated them to
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#1732779825190720-787: Is 54 °C (129 °F) and a typical time is 16 hours") to attempt to recover such tapes, allowing them to be played once more and the recordings transferred to new media. The problems have been reported on tapes of type 406/407, 456/457, 2020/373. Ampex Records was started in 1970. Its biggest hit was "We Gotta Get You A Woman" by Todd Rundgren (as "Runt"), reaching No. 20 on the Billboard Hot 100 chart in 1970. Ampex also originated three subsidiary labels: Bearsville , Big Tree , and Lizard. Ampex Records ceased operations around 1973; Bearsville and Big Tree switched distribution respectively to Warner Bros. Records and Bell Records , and Lizard became an independent entity. Later on, Big Tree
780-520: Is a digital video tape format created by Ampex and other manufacturers (through a standards group of SMPTE) and introduced at the 1988 NAB ( National Association of Broadcasters ) convention as a lower-cost alternative to the D-1 format. Like D-1, D-2 video is uncompressed; however, it saves bandwidth and other costs by sampling a fully encoded NTSC or PAL composite video signal, and storing it directly to magnetic tape, rather than sampling component video. This
840-419: Is attempting to do more with the data stored on its network attached storage (NAS) devices. This includes adding encryption for secure data storage; algorithms focused on control system cyber security for infrastructure and aerospace platforms; and artificial intelligence/machine learning for automated entity identification and data analytics. Russian–American inventor Alexander Matthew Poniatoff established
900-604: Is known as digital composite. Digital Component Technology (DCT) and Data Storage Technology (DST) are VTR and data storage devices respectively, created by Ampex in 1992. Both were similar to the D1 and D2 VTR formats, using a 19-millimetre ( 3 ⁄ 4 in) width, with the DCT format using DCT ( discrete cosine transform ) video compression , also its namesake. The DCT and DST formats yielded relatively high capacity and speed for data and video. Double-density DST data storage
960-511: The Academy of Motion Picture Arts and Sciences awarded Ampex an Oscar for technical achievement as a result of this development. Les Paul , a friend of Crosby and a regular guest on his shows, had already been experimenting with overdubbed recordings on disc. He received an early portable Ampex Model 300 from Crosby. Using this machine, Les Paul invented "Sound on Sound" recording technology. He placed an additional playback head, located before
1020-517: The Institute of Radio Engineers in San Francisco on May 16, 1946. Bing Crosby , a big star on radio at the time, was receptive to the idea of pre-recording his radio programs. He disliked the regimentation of live broadcasts, and much preferred the relaxed atmosphere of the recording studio. He had already asked the NBC network to let him pre-record his 1944–45 series on transcription discs, but
1080-754: The National Electrical Manufacturers Association , the Radio Manufacturers Association , the Radio and Television Manufacturers Association, and the National Television System Committee on Standards . The IRE also started (in 1914) a program of professional recognition, through the membership grade of IRE Fellow. The first Fellow was Jonathan Zenneck (1871–1959), a pioneer of wireless telegraphy . Until
1140-414: The 15-inch-per-second (38 cm/s) physical motion. They wrote the video vertically across the width of a tape that was 2 inches (51 mm) wide and ran at 15 inches (38 cm) per second. This allowed hour-long television programs to be recorded on one reel of tape. In 1956, one reel of tape cost $ 300; and Ampex advertised the cost of the recorder as $ 45,000. A 7.5-inch-per-second (19 cm/s) version
1200-615: The 1990s, and the company turned to digital storage products. Ampex moved into digital storage for DoD Flight Test Instrumentation (FTI) with the introduction of the first, true all digital flight test recorder. Ampex supports numerous major DoD programs with the US Air Force , US Army , US Marines , US Navy and other government entities ( NASA , DHS and national labs). Ampex also works with all major DoD primes and integrators including Boeing , General Atomics , Lockheed , Northrop , Raytheon and many others. Currently, Ampex
1260-736: The FM modulator itself. Dolby left Ampex to seek a PhD in physics in England, which is where Dolby Labs was later founded, before moving back to San Francisco. Dolby's brother Dale was also an engineer at Ampex. In 1961, Ampex introduced the first 1-inch helical scan video recorders, the Ampex 2-inch helical VTRs , which recorded video using helical scan recording technology on tape. Ampex 2 inch helical VTRs were manufactured from 1963 to 1970. Model VR-1500 for home. The VR-660 for Broadcast television systems , industrial companies, educational institutions, and
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#17327798251901320-824: The HS-100 video disc recorder. The system was developed by Ampex at the request of the American Broadcasting Company (ABC) for a variety of sports broadcast uses. It was first demonstrated on the air on March 18, 1967, when ABC's Wide World of Sports televised the "World Series of Skiing" from Vail , Colorado . The video was recorded on analog magnetic disc. The disc weighed 5 pounds (2.3 kg) and rotated at 60 rps, 3600 rpm (50 rps in PAL ). One NTSC unit could record 30 seconds of video, PAL units 36 seconds. The video could then be played back in slow motion, stop action to freeze frame. A more deluxe version,
1380-674: The HS-200, was introduced in April 1968, and provided a large control console with variable speed playback. This made it ideal for instant replay for sports events and precise timing control in post-production service. CBS-TV was the first to use the technique during live sportscasts, though it was quickly adopted by all American TV networks. The HS-200, which was an HS-100 connected to a control console, had greater precise frame and timing control capability, lending itself to post-production applications like special effects and titles. The HS-200 had
1440-970: The USA: the headquarters in Hayward, CA (about a dozen miles from the Redwood City location in Silicon Valley), a program office in Colorado Springs, CO and an engineering center in Las Cruces, NM, as well as from the main Delta HQ in Horsham, PA. Ampex continues to produce rugged data storage products used by government, military and commercial customers world-wide. Since joining Delta, Ampex has grown in revenue and headcount, employing significantly more people in 2023 than were employed under
1500-590: The Wireless Company of America. Other notable presidents of the IRE included Irving Langmuir (1923), John H. Morecroft (1924), Lee deForest (1930), Louis A. Hazeltine (1936), Frederick E. Terman (1941), Arthur F. Van Dyck (1942), William R. Hewlett (1954), Ernst Weber (1959; also first president of IEEE, 1963) and Patrick E. Haggerty (1962). The IRE issued the IRE Medal of Honor each year which
1560-465: The actual VTRs themselves to incorporate SMPTE timecode providing advanced timeline control. The RA-4000 and EDM-1 were fully functional early products, but soon evolved to the extremely powerful ACE family to compete with CMX and other edit controller brands. Starting in the early 1950s, RCA, Bing Crosby and others tried to record analog video on very fast-moving magnetic tape . As early as 1952, Ampex developed prototype video tape recorders that used
1620-424: The analog recording formats for both music and movies that remained in use into the 1990s. Starting in the 1950s, the company began developing video tape recorders , and later introduced the helical scan concept that made home video players possible. They also introduced multi-track recording, slow-motion and instant playback television, and a host of other advances. Ampex's tape business was rendered obsolete during
1680-421: The base and either sticking to the backing of the tape layer wound on top of it (resulting in dropout), or being scraped off and deposited on the tape heads while lifting the head off the tape, degrading the treble. The problem has been reported on a number of makes of tape (usually back-coated tapes), including Ampex tapes. Ampex filed U.S. patent 5,236,790 for a baking process ("A typical temperature used
1740-411: The broadcast industry for a quarter of a century. The format was licensed to RCA for use in their "television tape recorders." Ampex's invention revolutionized the television production industry by eliminating the kinescope process of time-shifting television programs, which required the use of motion picture film. For archival purposes, the kinescope method continued to be used for some years; film
1800-546: The company in San Carlos , California , in 1944 as the Ampex Electric and Manufacturing Company. The company name came from his initials plus "ex" to avoid using the name AMP already in use (by Aircraft and Marine Products). During World War II , Ampex was a subcontractor to Dalmo-Victor, manufacturing high quality electric motors and generators for radars that used alnico 5 magnets from General Electric . Ampex
1860-469: The conventional erase/record/playback heads. This allowed Paul to play along with a previously recorded track, both of which were mixed together on to a new track. This was a destructive process because the original recording was recorded over. Ampex built a handful of multitrack machines during the late 1950s that could record as many as eight tracks on 1-inch (25 mm) tape. The project was overseen by Ross Snyder, Ampex manager of special products. To make
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1920-461: The development of the Quadruplex video recorder for Ampex was Ray Dolby, who worked under Charlie Ginsburg and went on to form Dolby Laboratories , a pioneer in audio noise reduction systems. Dolby's contribution to the videotape system was limited to the mathematics behind the reactance tube FM modulator, as videotape then used FM modulation for the video portion. Another contributor designed
1980-492: The early 1940s IRE was a relatively small engineering organization, but the growing importance of electronic communications and the emergence of the discipline of electronics in the 1940s have increased its appeal to practitioners. Students of electrical engineering and young electrical engineers favored IRE over its older rival, the AIEE, and in 1957 IRE (with 57,000 members) was the larger organization. Negotiations about merging
2040-542: The early 1950s, Ampex moved to Redwood City, California. Ampex acquired Orradio Industries in 1959, which became the Ampex Magnetic Tape Division, headquartered in Opelika, Alabama . This made Ampex a manufacturer of both recorders and tape. By the end of that decade Ampex products were much in demand by top recording studios worldwide. In 1952, movie producer Mike Todd asked Ampex to develop
2100-429: The first standardized open-reel videotape formats in the 1 inch (25 mm) width; most others of that size at that time were proprietary. 1 inch type C videotape (designated Type C by SMPTE) was a professional open-reel videotape format co-developed and introduced by Ampex and Sony in 1976. It became the replacement in the professional video and television broadcast industries for the then-incumbent Quadruplex. D2
2160-532: The first-ever U.S. delayed radio broadcast of Bing Crosby's Philco Radio Time . Ampex tape recorders revolutionized the radio and recording industries because of their superior audio quality and ease of operation over audio disk cutting lathes . The firm's earliest production of multichannel machines wasn't aimed at music recording; it noted in 1953–54 that "Ampex began the commercial production of multitrack tape recorders about four years ago for those interested in telemetered information from guided missiles and
2220-472: The founding members of IRE considered AIEE too conservative and too focused on electric power . Moreover, the founders of the IRE sought to establish an international organization (unlike the “American” AIEE), and adopted a tradition of electing some of the IRE's officers from outside the United States. In the first half of the 20th century, radio communications had experienced great expansion, and
2280-570: The frequency spectrum, modulation techniques, testing methods, and radio equipment ; and organized regional and professional groups (starting in 1914 and 1948, respectively) for cooperation and exchange between members. The IRE was a major participant in planning of the Federal Radio Commission (established 1927; later the Federal Communications Commission ), and worked in close cooperation with
2340-510: The growing professional community of developers and operators of radio systems required standardization, research, and authoritative dissemination of new results among practitioners and researchers. To meet these needs, the IRE established professional journals (most notably the Proceedings of the IRE , established 1913 and edited for 41 years by Alfred N. Goldsmith ); participated actively in all aspects of standardization and regulations of
2400-503: The introduction of SMPTE time code allowed studios to run multiple machines in perfect synchronization, making the number of available tracks virtually unlimited. By the 1970s, Ampex faced tough competition from the Swiss company Studer and Japanese manufacturers such as Otari and Sony (who also purchased the MCI brand in 1982). In 1979, Ampex introduced their most advanced 24-track recorder,
2460-581: The legality of speech in an electronic public forum. After becoming part of Delta Information Systems in 2014, two former subsidiaries of Ampex Corporation continued business as part of the Ampex legacy. Ampex Data Systems Corporation (ADSC) headquartered in Silicon Valley, and its subsidiary, Ampex Japan Ltd. are the only two Ampex businesses that still trade as more than "in name only" entities. Ampex Data Systems operates out of main three locations in
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2520-502: The like. These equipments provided any number of simultaneous channels up to 14. It was a simple step, therefore, to make stereophonic tape recorders with two or more channels." During the early 1950s, Ampex began marketing one- and two-track machines using 1 ⁄ 4 -inch (6.4 mm) tape. In May 1953 the firm announced production of two- and three-track machines on 1/4 inch tape. The line soon expanded into three- and four-track models using 1 ⁄ 2 -inch (13 mm) tape. In
2580-466: The many American technological advances. In 1967, Ampex introduced the Ampex VR-3000 portable broadcast video recorder, which revolutionized the recording of broadcast quality television in the field without the need for long cables and large support vehicles. Broadcast quality images could now be shot anywhere, including from airplanes, helicopters and boats. The Quadruplex format dominated
2640-810: The model ATR-124. The ATR-124 was ruggedly constructed and had audio specifications that nearly rivaled the first digital recording machines. However, sales of the ATR-124 were slow due to the machine's high price tag. Ampex sold only about 50 or 60 ATR-124 machines and withdrew from the professional audio tape recorder market entirely in 1983. By the 1990s Ampex focused more on video recorders, instrumentation recorders, and data recorders. In 1991, Ampex sold their professional audio recorder line to Sprague Magnetics. The Ampex Recording Media Corporation spun off in 1995 as Quantegy Inc. ; that company has ceased producing recording tape. While AMPEX are well recognized for their contribution to magnetic tape recording, they also had
2700-567: The multitrack recorder work, Snyder invented the Sel-Sync process, which used some tracks on the head for playback and other tracks on the head for recording. This made the newly recorded material be in sync with the existing recorded tracks. The first of these machines cost $ 10,000 and was installed in Les Paul 's home recording studio by David Sarser . In 1967, Ampex responded to demand by stepping up production of their 8-track machines with
2760-412: The network refused; so Crosby had withdrawn from live radio for a year and returned (this time to the recently created ABC ) for the 1946–47 season, only reluctantly. In June 1947, Mullin, who was pitching the technology to the major Hollywood movie studios, got the chance to demonstrate his modified tape recorders to Crosby. When Crosby heard a demonstration of Mullin's tape recorders, he immediately saw
2820-454: The new Ampex Quadruplex recording system was CBS 's Douglas Edwards and the News on November 30, 1956. The "Quad" head assembly rotates at 14,400 rpm ( NTSC ). The four head pieces (quad) are switched successively so that recorded stripes cross the video portion (most of the tape middle, audio is on one edge, control track is on the other) so that head to tape write speed is well in excess of
2880-562: The new recorders so that Ampex (then a small six-man concern) could develop a commercial production model from the prototypes. Crosby Enterprises was Ampex's West Coast representative until 1957. The company's first tape recorder, the Ampex Model 200A, was first shipped in April 1948. The first two units, serial numbers 1 and 2, were used to record Bing Crosby's show. The American Broadcasting Company used these recorders along with 3M Scotch 111 gamma ferric oxide coated acetate tape for
2940-483: The potential of the new technology and commissioned Mullin to prepare a test recording of his radio show. Ampex was finishing its prototype of the Model 200 tape recorder, and Mullin used the first two models as soon as they were built. After a successful test broadcast, ABC agreed to allow Crosby to pre-record his shows on tape. Crosby immediately appointed Mullin as his chief engineer and placed an order for $ 50,000 worth of
3000-714: The previous management structure. The Ampex video system is obsolete, but many thousands of quadruplex videotape recordings remain. Machines that survive are used to transfer archival recordings to modern digital video formats. Alexander M. Poniatoff Too Many Requests If you report this error to the Wikimedia System Administrators, please include the details below. Request from 172.68.168.237 via cp1104 cp1104, Varnish XID 202959152 Upstream caches: cp1104 int Error: 429, Too Many Requests at Thu, 28 Nov 2024 07:43:45 GMT Institute of Radio Engineers Following several attempts to form
3060-548: The production model MM 1000. Like earlier 8-track machines of this era, it used 1-inch tape. In 1966, Ampex built their first 16-track recorder, the model AG-1000, at the request of Mirasound Studios in New York City. In 1967, Ampex introduced a 16-track version of the MM 1000 which was the world's first 16-track professional tape recorder put into mass-production. Both used a 2-inch (51 mm) tape transport design adapted from
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#17327798251903120-414: The quadruplex recording system per se is no longer in use, the principle evolved into the helical scanning technique used in virtually all video tape machines, such as those using the consumer formats of VHS , Sony Betamax and Video 2000 . Sony Betacam was successful as a professional format but operated with a different recording system and faster tape speed than Betamax. One of the key engineers in
3180-468: The two organizations started that year and continued until a new joint organization, the Institute of Electrical and Electronics Engineers (IEEE) was established in 1963. Several new professional organizations (such as the Society of Broadcast Engineers ), were founded shortly thereafter by IRE and AIEE members who opposed the merger. The first president of IRE was Robert H. Marriott , chief engineer of
3240-564: The video recording division. The 16-track MM-1000 quickly became legendary for its tremendous flexibility, reliability and outstanding sound quality. This brought about the "golden age" of large format analog multitrack recorders which would last into the mid-1990s. MCI built the first 24-track recorder (using 2-inch tape) in 1968 which was installed at TTG Studios in Los Angeles. Later machines built by Ampex starting in 1969 would have as many as 24 tracks on 2 inch tape. In addition to this,
3300-406: Was available to perform the foreground layering and priority switching – to reduce the burden on the vision mixer with multi-channel effects. AVC – The AVC range of vision mixers ranged from small, single buss devices up to the high-end Century Series, with multiple Mix/Effect busses, infinite re-entry and powerful keying and control software. The product line evolved quickly from manual editing on
3360-552: Was initially set up in an abandoned loft-space above the Dalmo-Victor plant; eventually they would have offices at 1313 Laurel Street, San Carlos, California (at the intersection of Howard Avenue and Laurel Street). Near the end of the war, while serving in the U.S. Army Signal Corps, Major Jack Mullin was assigned to investigate German radio and electronics experiments. He discovered the Magnetophons with AC biasing on
3420-405: Was introduced in 1996. The final generation of these products were quad density, introduced in 2000, resulting in a large cartridge holding 660GB of data. Some master tapes and other recordings predominantly from the 1970s and 1980s have degraded due to the so-called sticky-shed syndrome . When sticky-shed syndrome occurs, the binding agent deteriorates, resulting in the magnetic coating coming off
3480-422: Was picked up by Atlantic Records . In 2005, iNEXTV, a wholly owned subsidiary of respondent Ampex Corporation, brought a defamation lawsuit against a poster on an Internet message board who posted messages critical of them (Ampex Corp. v. Cargle (2005), Cal.App.4th). The poster, a former employee, responded with an anti- SLAPP suit and eventually recovered his attorney fees. The case was unique in that it involved
3540-409: Was released later, and this required a new, narrower headwheel. This vertical writing facilitated mechanical editing, once the control track was developed to display the pulse that indicates where a frame ends and the next one begins. Later, Ampex developed electronic editing. The National Academy of Television Arts and Sciences awarded Ampex its first Emmy in 1957 for this development. Ampex received
3600-399: Was still preferred by archivists. The Ampex broadcast video tape recorder facilitated time-zone broadcast delay so that networks could air programming at the same hour in various time zones. Ampex had trademarked the name " video tape ", so competitor RCA called the medium "TV tape" or "television tape". The terms eventually became genericized , and "videotape" is commonly used today. While
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