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Base Band 5
Base Band 5, abbreviated as BB5, is the current mobile baseband generation implemented on Nokia mobile phones and the replacement for prior DCT (Digital Core Technology) generations. This generation of Nokia phone basebands uses a new range of chipsets, bus systems and components as well as enhanced security mechanisms preventing manipulations of firmware and system configurations. The phones' system interface has changed over from previous generations to allow, for instance, flashing of the device via USB. Unlocking The system is designed to prevent unlocking of certain key capabilities of the handsets (such as usable network or installation of unsigned operating system), which has not been approved by Nokia or the network. Just like the DCT-4 (DCT generation 4) locking system, the unlocking code is unique to each handset and not stored inside the handset, but a hash signature, calculated by a secret algorithm and the phone uses only part of it to verify the code. However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Baseband
A baseband processor (also known as baseband radio processor, BP, or BBP) is a device (a chip or part of a chip) in a network interface controller that manages all the radio functions (all functions that require an antenna); however, this term is generally not used in reference to Wi-Fi and Bluetooth radios. A baseband processor typically uses its own RAM and firmware. Baseband processors are typically fabricated using CMOS (complementary metal–oxide–semiconductor) or RF CMOS technology, and are widely used in radio-frequency (RF) and wireless communications. Overview Baseband processors typically run a real-time operating system (RTOS) as their firmware, such as ENEA's OSE, Nucleus RTOS (iPhone 3G/3GS/iPad), ThreadX (iPhone 4), and VRTX. There are more than a few significant manufacturers of baseband processors, including Broadcom, Icera, Intel Mobile Communications (former Infineon wireless division), MediaTek, Qualcomm, Spreadtrum, and ST-Ericsson. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia E70
The Nokia E70 is a candybar/fold keyboard type smartphone from the Eseries range, announced in October 2005 and released in May 2006. There are two models of this phone, the E70-1 for the world market with tri-band (900, 1800, 1900 MHz) GSM and UMTS, and the E70-2 for the Americas with tri-band (850, 1800, 1900 MHz) GSM and EDGE packet data capability. Both models use the S60 platform 3rd Edition on top of Symbian OS version 9.1. The E70 is the business version/successor to the Nokia 6800 series (6800, 6810, 6820 and 6822). Key features * Screen resolution: 352 × 416 * Processor speed: 220 MHz * 45 MB RAM, about 22 MB available * Multimedia Messaging v1.2 * Push to talk * Java MIDP 2.0 * Web Browser for S60 * POP3, IMAP4, SMTP E-mail * SIP client for VoIP calls * WiFi (802.11b/g) with WEP/WPA * Bluetooth with up to six concurrent connections (though only one can be a headset). * Speaker-independent voice calls and commands * Speech synthesis mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soldering
Soldering (; ) is a process in which two or more items are joined by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Unlike welding, soldering does not involve melting the work pieces. In brazing, the work piece metal also does not melt, but the filler metal is one that melts at a higher temperature than in soldering. In the past, nearly all solders contained lead, but environmental and health concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes. Origins There is evidence that soldering was employed as early as 5,000 years ago in Mesopotamia. Soldering and brazing are thought to have originated very early in the history of metal-working, probably before 4000 BC. Sumerian swords from were assembled using hard soldering. Soldering was historically used to make jewelry, cookware and cooking tools, assembling stained glass, as well as other uses. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronics
The field of electronics is a branch of physics and electrical engineering that deals with the emission, behaviour and effects of electrons using electronic devices. Electronics uses active devices to control electron flow by amplification and rectification, which distinguishes it from classical electrical engineering, which only uses passive effects such as resistance, capacitance and inductance to control electric current flow. Electronics has hugely influenced the development of modern society. The central driving force behind the entire electronics industry is the semiconductor industry sector, which has annual sales of over $481 billion as of 2018. The largest industry sector is e-commerce, which generated over $29 trillion in 2017. History and development Electronics has hugely influenced the development of modern society. The identification of the electron in 1897, along with the subsequent invention of the vacuum tube which could amplify and rectify small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia N95
The Nokia N95 is a smartphone produced by Nokia as part of their Nseries line of portable devices. Announced in September 2006, it was released to the market in March 2007. The N95 ran S60 3rd Edition, on Symbian OS v9.2. It has a two-way sliding mechanism, which can be used to access either media playback buttons or a numeric keypad. It was first released in silver and later on in black, with limited edition quantities in gold and purple. The launch price of the N95 was around (about , ). The N95 was a high-end model that was marketed as a "multimedia computer", much like other Nseries devices. It featured a then-high 5 megapixel resolution digital camera with Carl Zeiss optics and with a flash, as well as a then-large display measuring 2.6 inches. It was also Nokia's first device with a built-in Global Positioning System (GPS) receiver, used for maps or turn-by-turn navigation, and their first with an accelerometer. It was also one of the earliest devices in the market sup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FBus
Fbus (for "Fast Bus") is an ANSI/IEEE data bus protocol oriented towards backplanes and cell phones. The standard specifies a way for various pieces of electronic hardware to communicate, typically with one piece acting as master (sending a request), and another acting as a slave (returning an answer). The FBus is a bi-directional full-duplex serial type bus running at 115,200 bit/s, 8 data bits, no parity, one stop bit (8N1). Much like a standard RS-232 serial port, FBus connections use one pin for data transmit, one pin for data receive and one pin for ground. The Fast Bus standard specifies completely the size, power requirements, signalling levels, and communications protocols for boards that live in a Fast Bus crate, which is also a part of the specification. Fbus was developed by Nokia as an improved replacement of the Mbus, which is only half-duplex A duplex communication system is a point-to-point system composed of two or more connected parties or devices that can c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pop-port
The Pop-Port interface (originally code-named "Tomahawk") was a proprietary plug-in port for accessories and data synchronisation, available with many Nokia mobile phones. The port consists of one metal pin on either end, and a plastic tab containing thirteen contacts. Pop-Port-like interfaces first appeared in Nokia phones since circa 1996, but the Pop-Port was standardised as a single interface in 2002. By early 2007 the Pop-Port was fully replaced by the industry standard USB (miniUSB, and later by microUSB) sockets for data services and a 4-part 2.5mm or 3.5mm "standard" TRRS socket for audio. Nokia had been equipping certain devices with one of these connectors as alternatives from about 2004. Nokia filed "Pop-Port" as a trademark in the United States on September 3, 2002. Functions The port carries signals for hands-free microphone, stereo speakers, FBus Rx/Tx or USB signals for the phones supporting them, power output for feeding the accessories that do not have their ow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia N93
The Nokia N93 is a smartphone from Nokia, part of the multimedia Nseries. It was introduced on 25 April 2006 and released in July 2006. It runs on Symbian OS v9.1 and the S60 3rd Edition interface. It was the most advanced camera phone from Nokia at the time of its release, and was particularly marketed for its camcorder, packed in its unique swivel design like its predecessor Nokia N90. The N93 improved upon camera capabilities over the N90. The phone has a 3.2-megapixel camera, Carl Zeiss optics and 3x optical zoom (the first Nokia phone to have it) as well as a 30 fps 640×480 (VGA) MPEG-4 video recording capability. It was succeeded by the Nokia N93i. Features *DVD-like video capture at 30 frames per second in the MPEG-4 format at VGA resolution *3.2-megapixel camera with Carl Zeiss Vario Tessar optics and flash *320×240 pixels; 262,144 colors 2.4" display *3x optical zoom / 20x digital zoom *direct TV out connectivity *easy video creation and burning to DVD with Adob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia N91
The Nokia N91 is a smartphone produced by Nokia as part of their Nseries line of portable devices. It was announced on April 27, 2005 along with N70 and N90 as the first three Nseries devices. The N91 ran on Symbian-based S60 3rd Edition (the first to run on Symbian 9.1). It was the first ever phone encompassing a 4 GB internal hard drive, allowing storage for 3,000 songs (an 8 GB revision came later). The N91 is highly focused on music,. with dedicated music keys on the front which slide down to reveal the keypad. It also featured the industry-standard 3.5 mm headphone jack, and was anticipated as a major challenger to Apple, whose iPod dominated the industry. The design of the N91 is based on stainless steel with a matte finish. The N91 became one of 2005's most anticipated phones, however it suffered from a long delay of release. It was expected to begin shipping by the end of 2005; but in September that year the device was delayed till 2006. In February 2006, it was de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia N90
The Nokia N90 is a smartphone, announced as part of Nokia's then-new line of multimedia devices, Nseries, on April 27, 2005. It had a unique swivel design encompassing four 'modes'. It has two displays and has a camera with Carl Zeiss optics and integrated flash, and can record video with audio. The screen can be swiveled 270° to let the phone be handled more like a conventional video camera. The camera lens can also be swiveled. The phone has no vibration feature. The 2.1-inch display has a pixel density of 259 ppi, which made it incredibly sharp and the crispest Nokia screen at the time, and continued to be joint-highest with the N80, E60 and E70 for four years, before being beaten by the Nokia N900 in 2009 with 267 ppi. The Nokia N90 can print with some printers over USB or over Bluetooth. It uses the Series 60 2nd Edition, Feature Pack 3 user interface on top of the Symbian OS 8.1a operating system. Later revisions also shipped with Version 2 of the Nokia Lifeblog software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nokia N71
The Nokia N71 is a smartphone announced by Nokia on 2 November 2005 and released in June 2006. It was Nokia's joint-first clamshell smartphone, like the N92 announced on the same day. The N71 runs on Symbian OS v9.1 ( S60 3rd Edition). Features Features include a 2 megapixel camera, a built-in flash, a front VGA camera to allow real-time video calling, FM radio, Bluetooth, digital music player functionality, comes standard with a fulWeb browser and has support for 3D Java games. It also has 3G and a mini-SD card slot for expandable memory. Other features include its ability to transfer data via W-CDMA 2100, GPRS and EDGE Edge or EDGE may refer to: Technology Computing * Edge computing, a network load-balancing system * Edge device, an entry point to a computer network * Adobe Edge, a graphical development application * Microsoft Edge, a web browser developed .... Nokia promotes the N71's 2-megapixel digital rear camera as producing high-quality photography and vid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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