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Ericsson T39
Ericsson T39 was a GSM mobile phone released by Ericsson Mobile Communications in 2001, it was the follow-up to the T28 and T29. The prototype, which was unveiled in 2000, was the second phone with built-in Bluetooth, while the first was ''Ericsson R520M''. Specifications * GSM Tri-band (900/1800/1900) * Form Factor: Flip * Weight: 86 g * Screen: 101 × 54 px Monochrome LCD * Bluetooth (1.0b) * IrDA IrDA is a wireless standard designed for exchanging data using infrared (IR). Infrared ports for this purpose have been implemented in portable electronic devices such as mobile telephones, laptops, cameras, printers, and medical devices. The mai ... * SMS, E-mail, WAP 1.2.1, GPRS, HSCSD The T39 came in three different colour options; Classic Blue which was a dark blue, Icecap Blue which was a light blue, and Rose White which was a cream colour. The T39 was the last phone from Ericsson with an active flip and external antenna. References External links Ericsson T39 full s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ericsson Mobile Communications
Ericsson Mobile Communications AB was a subsidiary of Ericsson, entirely focused on development of mobile phones (handsets). The company formed in 1989 and existed until it was succeeded by Sony Ericsson, a joint venture between Ericsson and Sony, in 2001. Sony fully acquired Ericsson's part in the venture in 2011, concluding what had become a tumultuous and unhappy venture between the two technology giants. The major offices were located in Lund, Kumla, Raleigh, North Carolina and Lynchburg, Virginia. History Under the command of Ericsson Radio Systems present CEO Lars Ramqvist, a new joint venture company was formed together with General Electric July 1, 1989, under the name Ericsson GE Mobile Communications. The company consisted of all mobile phone activity of both companies in Sweden and USA. Ericsson owned 60% of the company, and General Electric owned 40%. In this fusion GE contributed, among other things, a factory of some 1,600 employees in Lynchburg, Virginia. Ericsson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluetooth
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to . It employs Ultra high frequency, UHF radio waves in the ISM bands, from 2.402GHz to 2.48GHz. It is mainly used as an alternative to wired connections to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones, wireless speakers, HIFI systems, car audio and wireless transmission between TVs and soundbars. Bluetooth is managed by the Bluetooth Special Interest Group (SIG), which has more than 35,000 member companies in the areas of telecommunication, computing, networking, and consumer electronics. The Institute of Electrical and Electronics Engineers, IEEE standardized Bluetooth as IEEE 802.15.1 but no longer maintains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IrDA
IrDA is a wireless standard designed for exchanging data using infrared (IR). Infrared ports for this purpose have been implemented in portable electronic devices such as mobile telephones, laptops, cameras, printers, and medical devices. The main characteristics of this kind of wireless optical communication are physically secure bidirectional data transfer, line-of-sight and very low bit error rate, using point-and-shoot principles. IrDA has been made dormant by newer improved technologies like Bluetooth. History and usage The protocols and specifications of the standard were developed by the Infrared Data Association (abbreviated IrDA, giving the name to the standard itself), an industry-driven interest group that was founded in 1994 by around 50 companies. IrDA was popular on PDAs, laptops and some desktops from the late 1990s through the early 2000s. However, it has been displaced by other wireless technologies such as Bluetooth, and Wi-Fi, favored because they don't ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HSCSD
In communications, Circuit Switched Data (CSD) (also named GSM data) is the original form of data transmission developed for the time-division multiple access (TDMA)-based mobile phone systems like Global System for Mobile Communications (GSM). In later years, High Speed Circuit Switched Data (HSCSD) was developed providing increased data rates over conventional CSD. After 2010 many telecommunication carriers dropped support for CSD and HSCSD, having been superseded by GPRS and EDGE (E-GPRS). Technical CSD uses a single radio time slot to deliver 9.6 kbit/s data transmission to the GSM network switching subsystem where it could be connected through the equivalent of a normal modem to the Public Switched Telephone Network (PSTN), allowing direct calls to any dial-up service. For backwards compatibility, the IS-95 standard also supports CDMA Circuit Switched Data. However, unlike TDMA, there are no time slots, and all CDMA radios can be active all the time to deliver up to 14.4&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Ericsson Mobile Phones
Sony Mobile Communications Inc., originally Sony Ericsson Mobile Communications AB, was a multinational consumer electronics and telecommunications company, best known for its mobile phone products. The company, originally a joint venture between Sony and Ericsson, marketed products under the "Sony Ericsson" brand from 2001 until 2012, when Ericsson sold its share to Sony, with products hereafter being branded as "Sony". As part of a corporate restructuring, Sony Mobile was superseded by and integrated into Sony Corporation in 2021. The alliance between Swedish telecom giant Ericsson and Japanese electronics giant Sony was formed to benefit Ericsson Mobile recover against competitors in the mobile phone market, while for Sony it gave the opportunity to grow in the field of cellular communication, where it had only a minor presence. Products and development was done with contributions from both parties: the company itself was based in London, England, with its design centre in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ericsson
(), commonly known as Ericsson (), is a Swedish multinational networking and telecommunications company headquartered in Stockholm, Sweden. Ericsson has been a major contributor to the development of the telecommunications industry and is one of the leaders in 5G. Ericsson has over 57,000 granted patents and it is the inventor of Bluetooth technology. The company sells infrastructure, software, and services in information and communications technology for telecommunications service providers and enterprises, including, among others, cellular 4G and 5G equipment, and Internet Protocol (IP) and optical transport systems. The company employs around 100,000 people and operates in more than 180 countries. The company is listed on the Nasdaq Stockholm under the ticker symbols ERIC.A and ERIC.B and on the American Nasdaq under the ticker symbol ERIC. The company was founded in 1876 by Lars Magnus Ericsson and is jointly controlled by the Wallenberg family through its holding company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
