Lexi Webster
Australia has long claimed to be the inventor of Wi-Fi, and with good reason. In the 1990s, the Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia's national science agency, was researching various radio technologies, including wireless networking. In 1993, scientists at CSIRO filed a patent for a wireless local access network (WLAN), which enabled computers to communicate with each other without cables, revolutionizing the way we communicate. However, CSIRO did not manufacture the physical devices, choosing to license its patents instead. While Australia played a significant role in the development of Wi-Fi technology, the story is more complex than a simple claim of invention.
| Characteristics | Values |
|---|---|
| Country that invented WiFi | Australia claims to have invented WiFi, but this is disputed |
| Organization that developed WiFi | Commonwealth Scientific and Industrial Research Organization (CSIRO) |
| Type of technology developed | Wireless LAN (WLAN) technology, not WiFi |
| CSIRO's role | Held patents for wireless LAN technology and charged companies usage fees, claiming their technology was used in the WiFi standard |
| CSIRO's impact | Won the European Inventors Award for the invention of WiFi technologies |
| Key contributors | John O'Sullivan, Terry Percival, Diet Ostry, Graham Daniels, John Deane |
| CSIRO's partners | Radiata Inc., Austek Microsystems |
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What You'll Learn
CSIRO's role in the development of Wi-Fi
The Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Australia played a pivotal role in the development of Wi-Fi technology. The story of CSIRO's involvement began with its work in radio astronomy, specifically its attempt to create a tool to detect black holes. This work involved using complex mathematics, such as 'fast Fourier transforms', and studying radio waves and their behaviour in different environments.
In 1989, a team of scientists at CSIRO began working on wireless LAN technology. Led by John O'Sullivan, an Irish engineer, they developed a prototype test bed for a wireless local area network (WLAN) in 1992. This prototype was a breakthrough, as it could transmit data over unguided media like airwaves, paving the way for Wi-Fi. The team's focus on radio astronomy proved crucial, as they discovered a fast Fourier Transform chip, which is vital for unscrambling signals transmitted wirelessly.
CSIRO's work in wireless networking led to the filing of several patents. On November 19, 1993, they filed a patent titled "Invention: A Wireless Lan," aiming to address the issue of multipath interference in indoor environments. This was followed by a US patent in 1996, granted on January 23, 1996, which described a wireless local area network (WLAN) with multiple wireless transceivers communicating with multiple wireless hub transceivers.
CSIRO's patents and inventions in the wireless networking space led to legal disputes, with the organisation taking on some of the largest tech companies in the world. These disputes resulted in substantial settlements for CSIRO, with a total revenue of over $430 million by 2012. The organisation's work laid the foundation for wireless networking technology, which is now used in billions of devices worldwide, showcasing the significant role CSIRO played in the development of Wi-Fi.
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Wireless LAN technology
Wireless LAN (WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area. This enables users to move around within the area and remain connected to the network. WLANs are based on IEEE 802.11 standards and are commonly referred to as Wi-Fi.
Wi-Fi is a trademark of wireless network communication technology owned by the Wi-Fi Alliance. It is used for home and small office networks that link devices such as laptop computers, printers, smartphones, Web TVs, and gaming devices through a wireless network router. Wi-Fi enables high-speed communication between portable devices and the internet, using radio communications that go between the devices and a modem.
The development of Wi-Fi technology can be traced back to the 1990s in Australia, where the Commonwealth Scientific and Industrial Research Organization (CSIRO) conducted research into various radio technologies, including wireless networking. While Australia has claimed the invention of Wi-Fi, the actual development of the technology involved various organisations and individuals worldwide.
As technology continues to evolve, new applications and services will migrate from wired to wireless networks, driving the ongoing advancement of Wireless LAN technology.
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John O'Sullivan's FFT chip
Australia claims to have invented Wi-Fi, and this claim is not entirely unfounded. In the 1990s, the Commonwealth Scientific and Industrial Research Organization (CSIRO), a government agency, was researching various radio technologies, including wireless networking.
Dr. John O'Sullivan, an Australian engineer, led a team at CSIRO that patented the use of a technique for reducing multipath interference of radio signals transmitted for computer networking. This technology is a part of all recent Wi-Fi implementations.
O'Sullivan also led a team that developed a single-chip Fast Fourier Transform (FFT) processor, which found applications in military surveillance and astronomy. This processor was used to increase the bandwidth processing capacity of the Westerbork Radio Telescope eightfold.
The CSIRO has earned over $430 million in royalties and settlements arising from the use of its patents as part of the 802.11 standards, with as much as a billion dollars expected after further lawsuits. The organization won the 2012 European Inventors Award for its contributions to wireless LAN technology, making it as fast and powerful as cabled solutions and the basis for Wi-Fi technology used in billions of devices worldwide.
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Australian WLAN patent
The Australian WLAN patent was filed in 1992 and approved in 1996. The patent was filed by scientists at CSIRO, Australia's national science agency. CSIRO stands for the Commonwealth Scientific and Industrial Research Organization.
CSIRO's work on WLAN technology was motivated by the question of how to make wireless networks work as fast as wired networks. The key breakthrough made by CSIRO scientists was discovering how computers could communicate without cables and without signals becoming distorted by bouncing off walls and furniture.
The WLAN patent was the result of the work of CSIRO inventors Dr John O'Sullivan, Dr Terry Percival, Mr Diet Ostry, Mr Graham Daniels, and Mr John Deane. They developed a solution to the multipath problem, which involved transmitting different portions of a series of signals containing the data over multiple frequency channels. This ensured that none of the signals or their echoes would interfere with other signals transmitted on different channels.
Following the approval of the patent, Radiata Inc, a company founded by Dave Skellern and Neil Weste from Macquarie University, took out a non-exclusive patent on the technology from CSIRO in 1997. In 2000, Cisco Systems bought Radiata for $567 million after a successful demonstration of a chip compliant with the IEEE 802.11a wi-fi standard.
CSIRO has successfully asserted its patent rights through litigation, resulting in significant financial settlements from companies utilizing WLAN technology.
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CSIRO's commercialisation of wireless technology
In the early 1990s, CSIRO radio astronomy scientists John O'Sullivan, Graham Daniels, Terence Percival, Diethelm Ostry, and John Deane undertook research to make wireless networks as fast as wired networks in confined spaces. The team developed a technique involving a combination of forward error correction, frequency-domain interleaving, and multi-carrier modulation, which became the subject of a US patent granted in 1996.
CSIRO invented and patented wireless LAN (WLAN) technology, which allows us to work wirelessly in our homes and offices. The invention was a result of their pioneering research in radio astronomy, which involved complex mathematics, such as fast Fourier transforms, and detailed knowledge of radio waves and their behaviour in different environments.
CSIRO's solution to the problem of reverberation, where radio waves bounce off surfaces causing signal distortion, was unique and successful at a time when many major communications companies were struggling to solve the same issue. Their solution involved replacing a large single wave with multiple smaller waves sent in parallel, and then using techniques such as error correction coding and interleaving to piece the signals back together.
CSIRO's WLAN technology has been licensed by numerous companies and is estimated to be in over five billion devices worldwide, including phones, televisions, laptops, printers, and game consoles. The organisation has earned over $430 million in revenue from this technology, with license agreements representing around 90% of the industry by 2012.
CSIRO continues to build on its legacy in wireless research, partnering with companies, governments, and industries globally to develop innovative solutions for the next generation of wireless technologies.
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Frequently asked questions
No, but Australia did play a significant role in the development of Wi-Fi technology. The Commonwealth Scientific and Industrial Research Organization (CSIRO) developed wireless LAN technology, which is different from Wi-Fi. CSIRO also held patents related to wireless networking speeds but did not create the physical devices.
Wireless LAN (WLAN) technology allows devices to connect to a network wirelessly within a certain range. Wi-Fi, on the other hand, is a specific wireless networking standard established by the Institute of Electrical and Electronics Engineers (IEEE) in the United States.
CSIRO, Australia's government agency, contributed to wireless technology by conducting research and developing wireless LAN technology. They also held patents related to high-speed wireless networking but did not create the Wi-Fi standard or the physical devices.
Yes, CSIRO sought to commercialize its wireless LAN technology and charged usage fees to various companies, claiming that their patents were essential to the Wi-Fi standard. This led to legal disputes, with some companies challenging CSIRO's patent claims.
John O'Sullivan, an Australian electrical engineer, is credited with inventing the Fast Fourier Transform (FFT) computer chip, which played a crucial role in wireless communication. He worked with CSIRO and other organizations to develop and commercialize this technology, leading to its application in wireless networking.
