The short-range wireless transmission technology is intuitive, which makes people feel incredible. Just put the two devices close together, then the two devices can automatically establish a link, transfer files at high speed, and pay through the electronic wallet-no longer need to use finger touch or any form of digital transmission.
Samsung introduced this short-range wireless technology in a Galaxy S3 TV commercial in the United States. In the advertisement, through near field communication technology (NFC) and other wireless transmission technologies that combine NFC and Wi-Fi Direct, users can easily send video clips and music playlists.
Another short-range wireless transmission technology is called TransferJet, which is committed to becoming the focus of the "Global Consumer Electronics Show" (CES) in January 2013. TransferJet technology was developed by Sony and was first demonstrated at CES in 2008. Although the technology sounds very appealing, it still has some doubts.
Sony and Toshiba have developed TransferJet chips. Toshiba also introduced the first microSDIO card and USB adapter on the basis of TransferJet technology, hoping to accelerate the widespread adoption of this short-range wireless technology among various consumer electronic devices.
Toshiba hopes that Samsung ’s Galaxy S3 TV ads will vigorously promote NFC technology to awaken consumers to the advantages of this short-range wireless technology, which will help promote the popularity of TransferJet technology.
Adrienne Downey, director of manufacturing research at Semico Research, said the biggest advantage of TranferJet is its high data transfer rate. "It can quickly stream or transfer a large number of files between two devices, so sharing video and other multimedia files will not be as troublesome as using other wireless technologies."
Take a look at the picture below to see how TransferJet works.
TransferJet is expected to achieve higher performance and ease of use
(Effective data transfer rate: MB / s)
First, TransferJet does not use RF technology based on traditional antennas, but uses a new TransferJet coupler based on the principle of inductive magnetic fields.
Second, compared to other short-range wireless technologies, TransferJet's advantages include: a higher file transmission data rate of up to 375Mbps, and no interference or degradation from other wireless technologies; ultra-low transmission power (less than -70 dBm / MHz ); Automatic error detection and correction; data packet confirmation and retransmission; and operating in the 560MHz band with a center frequency of 4.48GHz. In Japan, Europe and the United States, 560MHz is currently an unlicensed band
According to Andrew Burt, Toshiba ’s vice president of analog and imaging business, "The key is that TransferJet can transfer files very quickly." More and more users often transfer HD video from one device to another device, they will TransferJet was found very attractive, he claimed.
Alan Li, Toshiba's senior business development manager, added that the wireless data transmission display of Samsung Galaxy S3 TV commercials is achieved through the combination of NFC and Wi-Fi Direct technology. NFC triggers "pairing" between the two devices; Wi-Fi Direct is used to transfer files. However, the first handshaking and file transfer between the two devices may take longer, Li reminds.
However, a question for Toshiba is who will adopt TransferJet first? Except for Sony (notebook computers), Epson (printers), Toshiba (notebook computers), and Pioneer (smart tablets), TransferJet has not yet been able to take the first step to vigorously promote the development of this technology. In fact, most of the Japanese manufacturers that currently promote TransferJet technology have mostly lost the confidence and pride they had in the past, so they have little help in popularizing the technology.
Therefore, smart phones may become a key application for consumers to accept this technology. However, there is no smart phone equipped with TransferJet function on the market.
Toshiba's strategy focuses on a USB dongle integrated with TransferJet or a microSD card based on TransferJet. By inserting a USB dongle or microSD card, TransferJet can be used directly on a laptop, camera or TV. The OEM price of this TransferJet USB dongle may be as high as $ 25; and the retail price is about 50 yuan. The price is quite expensive.
Semico's Downey said that TransferJet still needs a strong value proposition. "Why do we need to transfer / stream large amounts of file data between two devices? Perhaps the answer depends on the app that allows the technology to implement new applications!" Downey example, if TransferJet technology can achieve game sharing in HD, then it There is a chance to start taking off, especially if it also supports multiple devices paired transmission without affecting the transmission rate.
Burt said Toshiba also intends to develop a combination chip that combines Bluetooth and TransferJet, NFC and TransferJet, and wireless charging and TransferJet.
Semico's Downey said: "Combined chips are definitely a big advantage. Once people are used to sharing files with NFC and find that it is not fast enough, then TransferJet seems more attractive."
"However, the disadvantage of embedding TransferJet technology in wireless charging applications is that the current wireless charging standards are still being formulated. Therefore, in the short term, it is unlikely to see a combined chip that integrates wireless charging and TransferJet technology," Downey added. Road.
Introduction to TransferJet:
TransferJet is a wireless transmission technology that can transfer video content or music files at high speed, and its data transmission speed can reach up to 560Mbps. Moreover, TransferJet is different from the current general wireless transmission technology. It does not require complicated connection settings and no wireless network bridge (access point) when transmitting. Simply transfer the products equipped with TransferJet together for data transmission.
In 2008, Sony teamed up with Panasonic, Hitachi, Samsung Electronics and other internationally well-known manufacturers to form the "TransferJet ConsorTIum" to jointly establish the "TransferJet" interconnection specifications, and aimed at the popularization of "TransferJet". Companies currently participating in TransferJet ConsorTIum include Sony, Canon, Panasonic, Hitachi, Samsung Electronics, Eastman Kodak, JVC Kenwood, KDDI, NTT DoCoMo, Softbank Mobile, Casio, Nikon, Olympus Imaging, Pioneer, Seiko Epson, Sony Ericsson Mobile and Toshiba Wait for big factories.
It is understood that TransferJet technology uses near-field wireless communication (NFC) combined with the speed of UWB (Ultra-Wide Band) (560Mbps), allowing two devices such as mobile phones, digital cameras, digital cameras, TVs, game consoles or printers to quickly Send large files (photos, videos, videos, etc.). For example, TVs and cameras equipped with TransferJet technology can view photos on the camera on the TV screen through a simple connection, without the need for wiring or complicated settings.
Industry experts pointed out that the most common file transmission method of consumer electronics products is mostly through the USB transmission line, and the USB 3.0 specification has also been launched. Its maximum transmission speed of 5Gbs is sufficient to meet the transmission needs of general audio and video files. However, its largest door still needs wiring. Once the TransferJet standard is popularized, although its transfer speed is only slightly higher than that of USB 2.0, the convenience of not requiring wiring will inevitably have a major impact on the indestructible position of USB in the consumer market.
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