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Xiaomi Redmi Note 2
The Xiaomi Redmi Note 2 was a middle class Android smartphone by Xiaomi. It came in two variants. It had 13 MP rear camera and 5 MP front camera. The company discontinued the smartphone's sale in favor of the successors Redmi 3 and Redmi Note 3. Specifications Hardware The low end variant Redmi Note 2 was powered by a MediaTek MT6795 Helio X10 Octa-core 2.0 GHz Cortex-A53 prosessor coupled with 2 GB of RAM and 16 GB of Internal Storage. The High end variant Redmi Note 2 Prime, on the other hand, was powered by a MediaTek MT6795 Helio X10 Octa-core 2.2 GHz Cortex-A53 prosessor coupled with 2 GB of RAM and 32 GB of Internal Storage. Software Xiaomi Redmi Note 2 runs on Android Lollipop 5.0 on top of MIUI 7 and can be upgraded to MIUI 9. It is also possible to flash a custom ROM with Android 7, 8 or 9, but there is no official support by LineageOS LineageOS is an Android-based operating system for smartphones, tablet computers, and set-top boxes, with mostly free an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OmniVision Technologies
OmniVision Technologies Inc. is an American subsidiary of Chinese semiconductor device and mixed-signal integrated circuit design house Will Semiconductor. The company designs and develops digital imaging products for use in mobile phones, notebooks, netbooks and webcams, security and surveillance cameras, entertainment, automotive and medical imaging systems. Headquartered in Santa Clara, California, OmniVision Technologies has offices in the US, Western Europe and Asia. In 2016, OmniVision was acquired by a consortium of Chinese investors consisting of Hua Capital Management Co., Ltd., CITIC Capital Holdings Limited and Goldstone Investment Co., Ltd. History OmniVision was founded in 1995 by Aucera Technology (TAIWAN:奧斯來科技). Some company milestones: * 1999: First application-specific IC (ASIC) * 2000: IPO * 2005: Acquired CDM-Optics, a company founded to commercialize wavefront coding. * 2010: Acquires Aurora Systems and adds LCOS to its product line * 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android Pie
Android Pie ( codenamed Android P during development), also known as Android 9 (API 28) is the ninth major release and the 16th version of the Android mobile operating system. It was first released as a developer preview on March 7, 2018, and was released publicly on August 6, 2018. On August 6, 2018, Google officially announced the final release of Android 9 under the title " Pie", with the update initially available for current Google Pixel devices, and releases for Android One devices and others to follow "later this year". The Essential Phone was the first third-party Android device to receive an update to Pie, notably coming day-and-date with its final release. The Sony Xperia XZ3 was the first device with Android Pie pre-installed. As of December 2022, 9.17% of all Android devices ran Android 9 Pie (not receiving security updates), with 17.2% of tablets alone still running Pie, making it the 3rd most popular version to date. History Android Pie, then referred to as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android Oreo
Android Oreo ( codenamed Android O during development) is the eighth major release and the 15th version of the Android mobile operating system. It was first released as an alpha quality developer preview in March 2017 and released to the public on August 21, 2017. It contains a number of major features, including notification grouping, picture-in-picture support for video, performance improvements, and battery usage optimization, and support for autofillers, Bluetooth 5, system-level integration with VoIP apps, wide color gamuts, and Wi-Fi Aware. Android Oreo also introduces two major platform features: Android Go – a software distribution of the operating system for low-end devices – and support for implementing a hardware abstraction layer. , 8.17% of Android devices ran Android Oreo, with and 5.11% on Android 8.1 (API 27) and 2.06% on Android 8.0 (API 26). Android Oreo was internally codenamed "Oatmeal Cookie." On March 21, 2017, Google released the first devel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android Nougat
Android Nougat ( codenamed Android N during development) is the seventh major version and 14th original version of the Android operating system. First released as an alpha test version on March 9, 2016, it was officially released on August 22, 2016, with Nexus devices being the first to receive the update. The LG V20 was the first smartphone released with Nougat. Nougat introduces notable changes to the operating system and its development platform, including the ability to display multiple apps on-screen at once in a split-screen view, support for inline replies to notifications, and an expanded Doze power-saving mode that restricts device functionality once the screen has been off for a period of time. Additionally, the platform switched to an OpenJDK-based Java environment and received support for the Vulkan graphics rendering API, and seamless system updates on supported devices. Nougat received positive reviews. The new app notification format received particular prais ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIUI
MIUI (pronunciation: ''Me You I'') is an Android -based mobile operating system developed and maintained by Xiaomi independently of Google exclusively for its smartphones. MIUI includes various features such as theme support. It is the basis for other operating systems created by Xiaomi: MIUI for POCO, MIUI for Pad, MIUI for Watch, and MIUI for TV (PatchWall). There are different versions for each Xiaomi phone, and each version has variants according to the regions in which the phone is sold, such as China, Japan, Pakistan, Russia, Indonesia, India, Taiwan and Turkey. Xiaomi has released some smartphones with Android One while others have MIUI, based on the current version of Android. Xiaomi devices usually get three Android version updates, but get MIUI updates for four years. The first MIUI ROM was based on Android 2.2.x Froyo and was initially developed in the Chinese language by Chinese startup Xiaomi Tech. Xiaomi added a number of apps to the basic framework, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Android (operating System)
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. Most versions of Android are proprietary. The core components are taken from the Android Open Source Project (AOSP), which is free and open-source software (FOSS) primarily licensed under the Apache License. When Android is installed on devices, the ability to modify the otherwise free and open-source software is usually restricted, either by not providing the corresponding source code or by preventing reinstallation through technical measures, thus rendering the installed version proprietary. Most Android devices ship with additio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LTE (telecommunication)
In telecommunications, long-term evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/ EDGE and UMTS/HSPA standards. It improves on those standards' capacity and speed by using a different radio interface and core network improvements. LTE is the upgrade path for carriers with both GSM/UMTS networks and CDMA2000 networks. Because LTE frequencies and bands differ from country to country, only multi-band phones can use LTE in all countries where it is supported. The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. LTE is also called 3.95G and has been marketed as "4G LTE" and "Advanced 4G"; but it does not meet the technical criteria of a 4G wireless service, as specified in the 3GPP Release 8 and 9 document series for LTE Advanced. The requirements were set forth by the ITU-R organisa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluetooth Low Energy
Bluetooth Low Energy (Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) aimed at novel applications in the healthcare, fitness, beacons, security, and home entertainment industries. It is independent of classic Bluetooth and has no compatibility, but Bluetooth Basic Rate/Enhanced Data Rate (BR/EDR) and LE can coexist. The original specification was developed by Nokia in 2006 under the name Wibree, which was integrated into Bluetooth 4.0 in December 2009 as Bluetooth Low Energy. Compared to Classic Bluetooth, Bluetooth Low Energy is intended to provide considerably reduced power consumption and cost while maintaining a similar communication range. Mobile operating systems including iOS, Android, Windows Phone and BlackBerry, as well as macOS, Linux, Windows 8, Windows 10 and Windows 11, natively support Bluetooth Low Energy. Compat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A2DP
In order to use Bluetooth, a device must be compatible with the subset of Bluetooth ''profiles'' (often called services or functions) necessary to use the desired services. A Bluetooth profile is a specification regarding an aspect of Bluetooth-based wireless communication between devices. It resides on top of the Bluetooth Core Specification and (optionally) additional protocols. While the profile may use certain features of the core specification, specific versions of profiles are rarely tied to specific versions of the core specification, making them independent of each other. For example, there are Hands-Free Profile (HFP) 1.5 implementations using both Bluetooth 2.0 and Bluetooth 1.2 core specifications. The way a device uses Bluetooth depends on its profile capabilities. The profiles provide standards that manufacturers follow to allow devices to use Bluetooth in the intended manner. For the Bluetooth Low Energy stack, according to Bluetooth 4.0 a special set of profiles app ... [...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 wire connections, to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones. 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 the standard. The Bluetooth SIG oversees development of the specification, manages the qualificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wi-Fi
Wi-Fi () is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home and small office networks to link desktop and laptop computers, tablet computers, smartphones, smart TVs, printers, and smart speakers together and to a wireless router to connect them to the Internet, and in wireless access points in public places like coffee shops, hotels, libraries and airports to provide visitors with Internet access for their mobile devices. ''Wi-Fi'' is a trademark of the non-profit Wi-Fi Alliance, which restricts the use of the term ''Wi-Fi Certified'' to products that successfully complete interoperability certification testing. the Wi-Fi Alliance consisted of more than 800 companies from around the world. over 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
