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significantly more data-efficient (required the transmission of much less data) than existing techniques. Requiring less data also meant that it was compatible with emerging dial-up data networks such as ISDN, making its use less expensive and more flexible than the leased, fixed-location lines normally used for high-speed data transmission at the time.
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in
November 1984, becoming a public company on virtually its first day of business. Product development started at this point. Its name was changed to PictureTel in 1987, due to concern about potential name conflict with another communications company, Pacific Telephone Co., also known as PacTel.
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and his colleague
Jaswani R. Jain who published an important research paper combining block-based motion compensation and transform coding in December 1981. The result was PictureTel, creating one of the first real-time systems to implement motion compensation and transform coding in July 1986.
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PictureTel's first product, the C-2000 codec (compressor/decompressor) was the first commercial implementation of this computationally intensive technology. By analyzing the motion between successive frames rather than treating the frames as a sequence of unrelated images, this algorithm was
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In
October 2001, PictureTel was purchased by Polycom, a company that was co-founded in 1990 by Brian Hinman and another early PictureTel employee, Jeffrey Rodman. Hinman and Bernstein would later be instrumental in creating
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standards for two-way communications and video broadcast applications have been based upon motion compensation and transform coding, including those most widely used today such as
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While the company demonstrated its first product in 1986, the company did not have meaningful product sales until 1987.
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product companies. It achieved peak revenues of over $ 490 million in 1996 and 1997 and was eventually acquired by
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Displacement
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While at MIT Hinman and
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and
Richard Soley. The founding CEO was Ronald S. Posner Ph.D.
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617:"Audio Communications Product Strategy for the 21st Century"
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Caterpillar to Launch
Satellite Videoconferencing System
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International
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The team was also assisted initially by MIT Professor
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Polycom To
Acquire PictureTel Corporation. May 2001
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537:. Vol. 12. IDG Network World Inc. p. 4.
444:. Vol. 9. IDG Network World Inc. p. 29.
382:. Vol. 7. IDG Network World Inc. p. 26.
379:PictureTel Codec Software to Improve Video, Audio
633:"PictureTel Slims Down Videoconferencing Device"
682:Defunct computer companies of the United States
677:Defunct software companies of the United States
506:. Vol. 13. Ziff Davis, Inc. p. 251.
333:History of PictureTel Corp. – FundingUniverse
8:
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568:. Vol. 34. IDG Enterprise. p. 88.
475:. Vol. 27. IDG Enterprise. p. 58.
413:. Vol. 24. IDG Enterprise. p. 73.
503:PictureTel Corp. - PictureTel Live PCS 100
472:PictureTel Makes Videoconferencing Cheaper
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194:, Jeffrey G. Bernstein and MIT Professor
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441:PictureTel Sets Sights on Desktop Market
232:PictureTel was funded as "PicTel" by an
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500:Chen, Steven C.M. (June 14, 1994).
562:Cope, James (September 25, 2000).
469:Wexler, Joanie M. (May 17, 1993).
410:PictureTel Prospers in Tough Times
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631:IT World Staff (April 16, 2001).
615:Root, Timothy D. (January 2000).
170:was one of the first commercial
438:Brown, Bob (October 19, 1992).
128:V-2100 Videoconferencing System
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213:and two of his grad students
376:Smith, Tom (May 14, 1990).
205:LiveShare Plus - MS Windows
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635:. IDG Communications, Inc.
244:Subsequently, most of the
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226:Anil K. Jain (1946–1988)
158:LiveShare Plus - Windows
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168:PictureTel Corporation
106:Danvers, Massachusetts
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610:PictureTel 900 Series
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270:Ascend Communications
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309:2010-12-04 at the
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624:DSpace@MIT
291:References
224:Professor
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190:students
307:Archived
264:See also
222:UC Davis
113:Products
72:Founders
50:Industry
657:YouTube
646:YouTube
182:History
176:Polycom
140:Live200
137:Live100
94:Defunct
64:Founded
134:Live50
131:V-3100
56:&
45:Public
620:(PDF)
258:2Wire
605:CNET
586:help
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