March 27, 2014 ; 10 years ago ( 2014-03-27 ) (China, L50t model exclusively for China Mobile )
70-947: April 5, 2014 ; 10 years ago ( 2014-04-05 ) (Singapore) May 1, 2014 ; 10 years ago ( 2014-05-01 ) (Australia, United Kingdom) May 2, 2014 ; 10 years ago ( 2014-05-02 ) (China, L50u model exclusively for China Unicom ) May 5, 2014 ; 10 years ago ( 2014-05-05 ) (Canada) May 12, 2014 ; 10 years ago ( 2014-05-12 ) (India) May 17, 2014 ; 10 years ago ( 2014-05-17 ) (Hong Kong, Indonesia, Malaysia) May 19, 2014 ; 10 years ago ( 2014-05-19 ) (New Zealand) May 21, 2014 ; 10 years ago ( 2014-05-21 ) (Japan, SO-03F variant exclusively for NTT DoCoMo ) D6503 : UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1700 (Band IV),1900 (Band II), 2100 (Band I) MHz; GSM GPRS/EDGE 850, 900, 1800, 1900 MHz; LTE (Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 20). The Sony Xperia Z2
140-574: A "China Unicom Innovation Partner", with the "FuLu companion card" to bring exclusive benefits and surprises to the majority of Unicom users. In February 2000 a subsidiary "China Unicom Hong Kong" was incorporated in Hong Kong and was listed on the Hong Kong Stock Exchange on June 22, 2000. The intermediate parent company "China Unicom (Hong Kong) Limited" was "China Unicom ( BVI ) Limited", As of 31 December 2001 ,
210-661: A "national security risk". In November 2020, the U.S. President issued an executive order prohibiting U.S. companies and individuals owning stocks that the United States Department of Defense deemed to have links to the People's Liberation Army - which included China Unicom. In consequence of the order, the New York Stock Exchange delisted China Unicom in January 2021. In March 2021,
280-589: A 9.7% shares in China Unicom (H.K.), while the red chip company will own 1.4% shares of the Spanish firm. The companies also agreed to deepen their cooperation in areas such as procurement, mobile service platforms, service to MNC's wholesale carriers, roaming, technology, among others, where both companies have been cooperating since the signature of their strategic alliance agreement. In June 2012, China United Network Communications Group (China Unicom Group),
350-445: A built-in hub that connects to the physical USB cable. USB device communication is based on pipes (logical channels). A pipe connects the host controller to a logical entity within a device, called an endpoint . Because pipes correspond to endpoints, the terms are sometimes used interchangeably. Each USB device can have up to 32 endpoints (16 in and 16 out ), though it is rare to have so many. Endpoints are defined and numbered by
420-581: A combined total of 110 billion RMB and to merge the remainder of the company, in a share swap valued at US$ 56.3 billion (based on Unicom's stock last traded price) on June 2, 2008, with China Netcom . The CDMA business was officially moved to China Telecom in early November. In July 2009, China Unicom signed a $ 700 million deal with infrastructure vendor Ericsson to upgrade the company's GSM network. China Unicom has operated an internet service in North Korea since 2010. In April 2012, China Unicom
490-573: A director of "China Unicom (H.K.)". In 2017 China Unicom became one of the pilot projects of the mixed-ownership reform of the Chinese state-owned enterprise, which saw a decrease in the Government's ownership. In 2017 the Class A listed company of the group introduced ten strategic investors: state-controlled China Structural Reform Fund , state-controlled listed company China Life Insurance ,
560-470: A large 1/2.3" 20.7 megapixel camera with Sony's in-house G lens with Sony BIONZ for mobile image processor and Exmor RS for mobile image sensor. The camera is capable of HDR and 4K video recording. It also supports 4K video output via MHL 3.0. It also features a front-facing camera of 2.2 megapixels. The phone is available in three different colors, black, purple and white. The device is equipped with multi-colour LED -backlit stereophonic speakers . On
630-474: A maximum of 6.64 billion share / HK$ 88 billion). China Unicom Global Limited is a wholly owned subsidiary of China United Network Communication Group Company Limited. It was established on 24 June 2015, with its headquarter in Hong Kong. China Unicom Global is aimed to deliver direct and dedicate local support to customers outside Mainland China, including Asia Pacific, Americas, Europe, South Africa and
700-682: A new coding schema (128b/132b symbols, 10 Gbit/s; also known as Gen 2 ); for some time marketed as SuperSpeed+ ( SS+ ). The USB 3.2 specification added a second lane to the Enhanced SuperSpeed System besides other enhancements so that the SuperSpeedPlus USB system part implements the Gen 1×2 , Gen 2×1, and Gen 2×2 operation modes. However, the SuperSpeed USB part of the system still implements
770-415: A private equity fund ( Chinese : 腾讯信达有限合伙企业 ; lit. 'Tencent–Cinda Limited Partnership') that was owned by China Cinda Asset Management and a company related to Tencent , a private equity fund partially owned by Baidu and Industrial Bank ( Chinese : 百度鹏寰投资合伙企业 ), a private equity fund that related to JD.com ( Chinese : 京东三弘企业管理中心 ; lit. 'Jingdong Sanhong'),
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#1732783944409840-399: A public company Ali Venture Capital ( Chinese : 阿里创业投资 ), a public company Suning Commerce Group and three minor private equity funds that was subscribed by companies such as Kuang-Chi and CRRC Group . In the same year, the fund raised by the A share company was injected to the Hong Kong incorporated red chip company, via "China Unicom (BVI) Limited", for HK$ 13.24 per share (for
910-705: A security researcher identified evidence of surveillance campaign against Americans by China Unicom via Caribbean mobile networks, Cable & Wireless Communications and BTC . China Unicom denied the allegations. USB Universal Serial Bus ( USB ) is an industry standard that allows data exchange and delivery of power between many types of electronics. It specifies its architecture, in particular its physical interface , and communication protocols for data transfer and power delivery to and from hosts , such as personal computers , to and from peripheral devices , e.g. displays, keyboards, and mass storage devices, and to and from intermediate hubs , which multiply
980-538: A standard to replace virtually all common ports on computers, mobile devices, peripherals, power supplies, and manifold other small electronics. In the current standard, the USB-C connector replaces the many various connectors for power (up to 240 W), displays (e.g. DisplayPort, HDMI), and many other uses, as well as all previous USB connectors. As of 2024, USB consists of four generations of specifications: USB 1. x , USB 2.0 , USB 3. x , and USB4 . USB4 enhances
1050-634: A tethered connection (that is: no plug or receptacle at the peripheral end). There was no known miniature type A connector until USB 2.0 (revision 1.01) introduced one. USB 2.0 was released in April 2000, adding a higher maximum signaling rate of 480 Mbit/s (maximum theoretical data throughput 53 MByte/s ) named High Speed or High Bandwidth , in addition to the USB ;1. x Full Speed signaling rate of 12 Mbit/s (maximum theoretical data throughput 1.2 MByte/s). Modifications to
1120-508: Is full-duplex ; all earlier implementations, USB 1.0-2.0, are all half-duplex, arbitrated by the host. Low-power and high-power devices remain operational with this standard, but devices implementing SuperSpeed can provide increased current of between 150 mA and 900 mA, by discrete steps of 150 mA. USB 3.0 also introduced the USB Attached SCSI protocol (UASP) , which provides generally faster transfer speeds than
1190-568: Is a Chinese state-owned telecommunications operator . Started as a wireless paging and GSM mobile operator , it currently provides a range of services including mobile network, long-distance, local calling, data communication, Internet services, and IP telephony. China Unicom is the third-largest wireless carrier in China and the sixth largest mobile provider in the world as of 2022. China Unicom (then known as Chinese : 中国联合通信有限公司 ; pinyin : Zhōngguó liánhé tōngxìn yǒuxiàn gōngsī )
1260-608: Is an Android -based smartphone unveiled, manufactured, and marketed by Sony and was released in April 2014. Under the codename "Sirius", Xperia Z2 serves as the successor to the Sony Xperia Z1 . Like its predecessor, the Xperia Z2 is water and dust proof with an IP rating of IP55 and IP58. The phone features an IPS LED display, a Snapdragon 801 processor and the ability to record 4K videos. The Xperia Z2 also allows removable microSD storage up to 128 GB. The Xperia Z2
1330-404: Is lighter and also thinner than its predecessor weighing at 163g and measuring 146.8mm by 73.3mm by 8.2mm. For connectivity, the phone supports NFC , Bluetooth 4.0 , DLNA and FM radio . It also supports –DUALSHOCK 4. The ability to connect an external USB device is a feature otherwise known as USB OTG which the Xperia Z2 also supports. Digital noise cancellation technology is also built into
1400-402: Is made using two connectors: a receptacle and a plug . Pictures show only receptacles: The Universal Serial Bus was developed to simplify and improve the interface between personal computers and peripheral devices, such as cell phones, computer accessories, and monitors, when compared with previously existing standard or ad hoc proprietary interfaces. From the computer user's perspective,
1470-495: The 5, 10, and 20 Gbit/s capabilities as SuperSpeed USB 5Gbps , SuperSpeed USB 10 Gbps , and SuperSpeed USB 20 Gbps , respectively. In 2023, they were replaced again, removing "SuperSpeed" , with USB 5Gbps , USB 10Gbps , and USB 20Gbps . With new Packaging and Port logos. The USB4 specification was released on 29 August 2019 by the USB Implementers Forum. The USB4 2.0 specification
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#17327839444091540-608: The A share company, in turn the A share company owned 73.84% of the BVI company. The BVI company owned 77.47% shares of the red chip company. To sum up, the Chinese Government via A share company, owned 42.67% stake of the operating subsidiaries, as well as additional 20.27% stake by the minority stake in the BVI company. On June 2, 2008, China Unicom announced its intention to sell its CDMA business and assets to China Telecommunications Corporation (China Telecom Group) for
1610-566: The Android 5.0 "Lollipop" update. While the update was planned to be carried out at the start of 2015, the roll-out to the Xperia Z2 did not begin until 7 April 2015. The update in the United Kingdom rolled out on 16 April 2015. The Android 5.1 update was carried out on 21 July 2015. Sony announced on their blog that the Xperia Z2 will receive the Android 6.0.1 Marshmallow update after the release of Xperia Z5. Subsequently, on 9 April 2016
1680-545: The BOT (Bulk-Only-Transfer) protocol. USB 3.1 , released in July 2013 has two variants. The first one preserves USB 3.0's SuperSpeed architecture and protocol and its operation mode is newly named USB 3.1 Gen 1 , and the second version introduces a distinctively new SuperSpeedPlus architecture and protocol with a second operation mode named as USB 3.1 Gen 2 (marketed as SuperSpeed+ USB ). SuperSpeed+ doubles
1750-670: The BVI company owned 77.47% shares of China Unicom (H.K.). In turn, China Unicom (H.K.) owned the operating subsidiaries of the group. In 2002, another intermediate parent company "China United Network Communications Limited" was established in Shanghai (headquartered in Beijing), to own 51% stake of "China Unicom (BVI) Limited" as well as listing the shares in the Shanghai Stock Exchange . As of 31 December 2002 , state-owned China Unicom Group owned 74.6% shares of
1820-564: The FCC initiated proceedings to revoke China Unicom's authorization to operate in the U.S. due to "national security" concerns. In January 2022, the FCC revoked China Unicom's authorization to operate in the United States, giving it 60 days to cease providing telecommunications services. In September 2022, the FCC added China Unicom to a list of companies considered "national security threats". In December 2020, The Guardian reported that
1890-667: The Middle East. On 2 December 2016, China Unicom Global Limited launched the “CUniq” overseas mobile virtual network operator (“MVNO”) service in London, UK and unveiled the one-card-multiple-number service. In October 2019, a group of U.S. senators urged the Federal Retirement Thrift Investment Board to divest U.S. pension money from any investment in China Unicom for providing telecommunications services to disputed artificial islands in
1960-510: The Sony Xperia Z2 received mostly positive reviews. CNET 's reviewer Andrew Hoyle gave the phone a 4.5 stars out of 5, praising its screen, camera and waterproof design. Vlad Savov from The Verge heaped praise on the Xperia Z2's battery life, and the well-built and waterproof design, while criticizing the phone's camera software and its size. John McCann of TechRadar applauded the camera's features, as well as its stylish screen and
2030-682: The South China Sea . In August 2020, the United States Department of Defense published a list of companies operating directly or indirectly in the United States with ties to the People's Liberation Army . China Unicom was included on the list. In October 2020, the Federal Communications Commission (FCC) requested the United States Department of Justice report whether China Unicom poses
2100-501: The SuperSpeed USB Developers Conference. USB 3.0 adds a new architecture and protocol named SuperSpeed , with associated backward-compatible plugs, receptacles, and cables. SuperSpeed plugs and receptacles are identified with a distinct logo and blue inserts in standard format receptacles. The SuperSpeed architecture provides for an operation mode at a rate of 5.0 Gbit/s, in addition to
2170-454: The USB 2.0 bus operating in parallel. The USB 3.0 specification defined a new architecture and protocol named SuperSpeed (aka SuperSpeed USB , marketed as SS ), which included a new lane for a new signal coding scheme (8b/10b symbols, 5 Gbit/s; later also known as Gen 1 ) providing full-duplex data transfers that physically required five additional wires and pins, while preserving
Sony Xperia Z2 - Misplaced Pages Continue
2240-416: The USB interface improves ease of use in several ways: The USB standard also provides multiple benefits for hardware manufacturers and software developers, specifically in the relative ease of implementation: As with all standards, USB possesses multiple limitations to its design: For a product developer, using USB requires the implementation of a complex protocol and implies an "intelligent" controller in
2310-401: The USB specification have been made via engineering change notices (ECNs). The most important of these ECNs are included into the USB 2.0 specification package available from USB.org: The USB 3.0 specification was released on 12 November 2008, with its management transferring from USB 3.0 Promoter Group to the USB Implementers Forum (USB-IF) and announced on 17 November 2008 at
2380-547: The USB 2.0 architecture and protocols and therefore keeping the original four pins/wires for the USB 2.0 backward-compatibility resulting in 9 wires (with 9 or 10 pins at connector interfaces; ID-pin is not wired) in total. The USB 3.1 specification introduced an Enhanced SuperSpeed System – while preserving the SuperSpeed architecture and protocol ( SuperSpeed USB ) – with an additional SuperSpeedPlus architecture and protocol (aka SuperSpeedPlus USB ) adding
2450-626: The battery life, while devoting his criticism towards the phone for being slow at some times, the large bezel design and 4K recording problems. Linus Sebastian of LinusTechTips referred to the Z2 as "Basically the Z1 but with the big glaring issue (The TN panel ) gone". The successor to the Xperia Z2, the Sony Xperia Z3 , was unveiled at IFA 2014 on September 4, 2014. China Unicom China United Network Communications Group ( China Unicom )
2520-862: The data transfer and power delivery functionality with ... a connection-oriented, tunneling architecture designed to combine multiple protocols onto a single physical interface so that the total speed and performance of the USB4 Fabric can be dynamically shared. USB4 particularly supports the tunneling of the Thunderbolt 3 protocols, namely PCI Express (PCIe, load/store interface) and DisplayPort (display interface). USB4 also adds host-to-host interfaces. Each specification sub-version supports different signaling rates from 1.5 and 12 Mbit/s total in USB 1.0 to 80 Gbit/s (in each direction) in USB4. USB also provides power to peripheral devices;
2590-504: The deal, Telefónica still owned 5% of China Unicom (H.K.). In 2014 Telefónica sold a further 2.5% shares of "China Unicom (H.K.)" for HK$ 6.66 billion (HK$ 11.14 per share). During year 2016, Telefónica sold a further 1.51% shares of "China Unicom (H.K.)" for HK$ 2.822 billion (HK$ 7.8 per share), As of 31 December 2016 Telefónica owned 1% shares of the red chip company (decreased from 2.51% year-to-yearly), as well as Telefónica's director César Alierta , still served as
2660-506: The development of USB in 1995: Compaq , DEC , IBM , Intel , Microsoft , NEC , and Nortel . The goal was to make it fundamentally easier to connect external devices to PCs by replacing the multitude of connectors at the back of PCs, addressing the usability issues of existing interfaces, and simplifying software configuration of all devices connected to USB, as well as permitting greater data transfer rates for external devices and plug and play features. Ajay Bhatt and his team worked on
2730-402: The device during initialization (the period after physical connection called "enumeration") and so are relatively permanent, whereas pipes may be opened and closed. There are two types of pipe: stream and message. When a host starts a data transfer, it sends a TOKEN packet containing an endpoint specified with a tuple of (device_address, endpoint_number) . If the transfer is from the host to
2800-452: The endpoint, the host sends an OUT packet (a specialization of a TOKEN packet) with the desired device address and endpoint number. If the data transfer is from the device to the host, the host sends an IN packet instead. If the destination endpoint is a uni-directional endpoint whose manufacturer's designated direction does not match the TOKEN packet (e.g. the manufacturer's designated direction
2870-432: The following ECNs: A USB system consists of a host with one or more downstream facing ports (DFP), and multiple peripherals, forming a tiered- star topology . Additional USB hubs may be included, allowing up to five tiers. A USB host may have multiple controllers, each with one or more ports. Up to 127 devices may be connected to a single host controller. USB devices are linked in series through hubs. The hub built into
Sony Xperia Z2 - Misplaced Pages Continue
2940-484: The front and back with an aluminium power button placed on the right hand side of the device. The Sony Xperia Z2 features a 5.2 inch BRAVIA IPS LCD Triluminos display with a resolution of 1080 by 1920 pixels (Full HD) with a pixel density of 424 ppi . Additionally, display features such as Live Color LED technology reproduces richer colours and more uniform backlighting as compared to the Sony Xperia Z1. It has
3010-448: The host controller is called the root hub . A USB device may consist of several logical sub-devices that are referred to as device functions . A composite device may provide several functions, for example, a webcam (video device function) with a built-in microphone (audio device function). An alternative to this is a compound device , in which the host assigns each logical device a distinct address and all logical devices connect to
3080-428: The inside, the Xperia Z2 features a slightly tweaked Snapdragon 800 processor (known as Snapdragon 801) clocked at 2.3 GHz sealed with a high capacity 3200mAh battery, 3GB of RAM with 16GB (11.57GB user accessible, as shown on the device) internal storage and has microSD, microSDHC, and microSDXC support up to 128GB (note that SD card can be used for app storage under android Lollipop v5.0.2 and later). The Xperia Z2
3150-577: The internet. China Unicom has operated a CDMA network in Macau since October 18, 2006 and internet services in North Korea since 2010. As of the end of April 2008 , the company had 125 million GSM subscribers and 43 million CDMA subscribers. As of November 2008 the CDMA operations have been moved to China Telecommunications Corporation (China Telecom Group). On 7 January 2009, China Unicom
3220-964: The latest versions of the standard extend the power delivery limits for battery charging and devices requiring up to 240 watts ( USB Power Delivery (USB-PD) ). Over the years, USB(-PD) has been adopted as the standard power supply and charging format for many mobile devices, such as mobile phones, reducing the need for proprietary chargers. USB was designed to standardize the connection of peripherals to personal computers, both to exchange data and to supply electric power. It has largely replaced interfaces such as serial ports and parallel ports and has become commonplace on various devices. Peripherals connected via USB include computer keyboards and mice, video cameras, printers, portable media players, mobile (portable) digital telephones, disk drives, and network adapters. USB connectors have been increasingly replacing other types of charging cables for portable devices. USB connector interfaces are classified into three types:
3290-614: The many various legacy Type-A (upstream) and Type-B (downstream) connectors found on hosts , hubs , and peripheral devices , and the modern Type-C ( USB-C ) connector, which replaces the many legacy connectors as the only applicable connector for USB4. The Type-A and Type-B connectors came in Standard, Mini, and Micro sizes. The standard format was the largest and was mainly used for desktop and larger peripheral equipment. The Mini-USB connectors (Mini-A, Mini-B, Mini-AB) were introduced for mobile devices. Still, they were quickly replaced by
3360-596: The maximum signaling rate to 10 Gbit/s (later marketed as SuperSpeed USB 10 Gbps by the USB 3.2 specification), while reducing line encoding overhead to just 3% by changing the encoding scheme to 128b/132b . USB 3.2 , released in September 2017, preserves existing USB 3.1 SuperSpeed and SuperSpeedPlus architectures and protocols and their respective operation modes, but introduces two additional SuperSpeedPlus operation modes ( USB 3.2 Gen 1×2 and USB 3.2 Gen 2×2 ) with
3430-508: The new USB-C Fabric with signaling rates of 10 and 20 Gbit/s (raw data rates of 1212 and 2424 MB/s). The increase in bandwidth is a result of two-lane operation over existing wires that were originally intended for flip-flop capabilities of the USB-C connector. Starting with the USB 3.2 specification, USB-IF introduced a new naming scheme. To help companies with the branding of the different operation modes, USB-IF recommended branding
3500-452: The number of a host's ports. Introduced in 1996, USB was originally designed to standardize the connection of peripherals to computers, replacing various interfaces such as serial ports , parallel ports , game ports , and ADB ports. Early versions of USB became commonplace on a wide range of devices, such as keyboards, mice, cameras, printers, scanners, flash drives, smartphones, game consoles, and power banks. USB has since evolved into
3570-537: The one-lane Gen 1×1 operation mode. Therefore, two-lane operations, namely USB 3.2 Gen 1× 2 (10 Gbit/s) and Gen 2× 2 (20 Gbit/s), are only possible with Full-Featured USB-C. As of 2023, they are somewhat rarely implemented; Intel, however, started to include them in its 11th-generation SoC processor models, but Apple never provided them. On the other hand, USB 3.2 Gen 1(×1) (5 Gbit/s) and Gen 2(×1) (10 Gbit/s) have been quite common for some years. Each USB connection
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#17327839444093640-528: The optional functionality as Thunderbolt 4 products. USB4 2.0 with 80 Gbit/s speeds was to be revealed in November 2022. Further technical details were to be released at two USB developer days scheduled for November 2022. The USB4 specification states that the following technologies shall be supported by USB4: Because of the previous confusing naming schemes, USB-IF decided to change it once again. As of 2 September 2022, marketing names follow
3710-532: The peripheral device. Developers of USB devices intended for public sale generally must obtain a USB ID, which requires that they pay a fee to the USB Implementers Forum (USB-IF). Developers of products that use the USB specification must sign an agreement with the USB-IF. Use of the USB logos on the product requires annual fees and membership in the organization. A group of seven companies began
3780-453: The phone which works by using the headsets included with the phone. The Xperia Z2 originally ran the Android 4.4.2 "KitKat" operating system with Sony's custom launcher and some applications additions, such as Sony's media applications including Walkman (currently updated to Music ), Album and Videos . With NFC on the Xperia Z2, it allows 'screen mirroring' — which mirrors what is on
3850-526: The phone's screen, camera and waterproof design, but criticized its size and camera software issues that cause the device to overheat when recording 4K video for extended periods. Similar to other devices under the Sony Xperia Z series , the Xperia Z2 has an "Omni-Balance", according to Sony, which is focused on creating balance and symmetry in all directions. The phone comes with the same aluminium frame as its predecessor. It also features tempered glass on
3920-402: The phone. New features added to the software includes 'Smart Backlight' — which keeps the phone display on for as long as the user is looking at it — and 'Glove Mode'. The 2160p (4K) video resolution is implemented as separate camera mode in the camera software rather than integrated in the video resolution selector. Sony announced on their blog that the whole Xperia Z series will be getting
3990-475: The smartphone screen to compatible TVs — and play music over-the-air on NFC-enabled speakers. Screen recording ( Screencasting ) was implemented in it years ahead of stock Android , and accessible from the power button menu. The device also includes Sony's battery stamina mode, which extends the phone's standby up to 4 times. Several Google applications (such as Google Chrome, Google Play, Google Search and Voice, Google Maps, and Google Talk) are also preloaded onto
4060-487: The standard at Intel; the first integrated circuits supporting USB were produced by Intel in 1995. Released in January 1996, USB 1.0 specified signaling rates of 1.5 Mbit/s ( Low Bandwidth or Low Speed ) and 12 Mbit/s ( Full Speed ). It did not allow for extension cables, due to timing and power limitations. Few USB devices made it to the market until USB 1.1 was released in August 1998. USB 1.1
4130-481: The syntax "USB x Gbps", where x is the speed of transfer in Gbit/s. Overview of the updated names and logos can be seen in the adjacent table. The operation modes USB 3.2 Gen 2×2 and USB4 Gen 2×2 – or: USB 3.2 Gen 2×1 and USB4 Gen 2×1 – are not interchangeable or compatible; all participating controllers must operate with the same mode. This version incorporates
4200-415: The thinner Micro-USB connectors (Micro-A, Micro-B, Micro-AB). The Type-C connector, also known as USB-C, is not exclusive to USB, is the only current standard for USB, is required for USB4, and is required by other standards, including modern DisplayPort and Thunderbolt. It is reversible and can support various functionalities and protocols, including USB; some are mandatory, and many are optional, depending on
4270-489: The three existing operation modes. Its efficiency is dependent on a number of factors including physical symbol encoding and link-level overhead. At a 5 Gbit/s signaling rate with 8b/10b encoding , each byte needs 10 bits to transmit, so the raw throughput is 500 MB/s. When flow control, packet framing and protocol overhead are considered, it is realistic for about two thirds of the raw throughput, or 330 MB/s to transmit to an application. SuperSpeed's architecture
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#17327839444094340-468: The type of hardware: host, peripheral device, or hub. USB specifications provide backward compatibility, usually resulting in decreased signaling rates, maximal power offered, and other capabilities. The USB 1.1 specification replaces USB 1.0. The USB 2.0 specification is backward-compatible with USB 1.0/1.1. The USB 3.2 specification replaces USB 3.1 (and USB 3.0) while including the USB 2.0 specification. USB4 "functionally replaces" USB 3.2 while retaining
4410-419: The ultimate parent company of Hong Kong listed company "China Unicom (Hong Kong)", had agreed to buy back about 1.1 billion shares (approx. 4.6% of the share capital) of the red chip company from Telefónica for an approx. HK$ 11 billion. (HK$ 10.21 per share; by narrow band floating exchange rate approx. US$ 1.4 billion), via an unlisted subsidiary "China Unicom Group Corporation (BVI) Limited". Immediate after
4480-645: The update was officially rolled out to the Xperia Z2. The Xperia Z2 was not among the Sony's list of Xperia models that will be receiving the Android 7.0 Nougat update. In June 2014, the Xperia Z2 was announced as the "official smartphone" of the 2014 FIFA World Cup . In Sweden, customers who purchased the phone also received one of Sony's wearable devices , the Sony SmartBand SWR10. All variants support four 2G GSM bands 850/900/1800/1900 and five 3G UMTS band 850/900/1700/1900/2100. Like its predecessor,
4550-471: Was a founding member in the formation of Cloud Computing Industry Alliance in Beijing . Other members of the alliance include Baidu , Tencent , and Alibaba . In 2009, China Unicom (Hong Kong) agreed to a US$ 1 billion cross-holding with Spain's Telefónica . In January 2011, the two partners agreed a further US$ 500 million tie-up in each other, which following completion in late 2011, Telefónica will hold
4620-415: Was awarded WCDMA license to expand its business to 3G telecommunication. UMTS ( Universal Mobile Telecommunications System ) was launched in major cities across China on May 17, 2009. On July 11, 2020, China Unicom joined hands with LuHan to launch the "FuLu Companion Card", which sounded the forward number for the further development of 5G. LuHan also officially unlocked his new identity and became
4690-905: Was founded as a state-owned enterprise in 1994 by the Ministry of Railways , the Ministry of Electronics and the Ministry of Electric Power Industry; the establishment was approved by the State Council in December 1993. China Unicom was among six state-owned companies that built the communications infrastructure and assisted in financing the Ministry of Industry and Information Technology 's Connecting Every Village Project, which began in 2004. The project aimed to promote universal telecommunications and internet access in rural China . The program successfully extended internet infrastructure throughout rural China and promoted development of
4760-524: Was released on 1 September 2022 by the USB Implementers Forum. USB4 is based on the Thunderbolt 3 protocol. It supports 40 Gbit/s throughput, is compatible with Thunderbolt 3, and backward compatible with USB 3.2 and USB 2.0. The architecture defines a method to share a single high-speed link with multiple end device types dynamically that best serves the transfer of data by type and application. During CES 2020 , USB-IF and Intel stated their intention to allow USB4 products that support all
4830-434: Was the earliest revision that was widely adopted and led to what Microsoft designated the " Legacy-free PC ". Neither USB 1.0 nor 1.1 specified a design for any connector smaller than the standard type A or type B. Though many designs for a miniaturized type B connector appeared on many peripherals, conformity to the USB 1. x standard was hampered by treating peripherals that had miniature connectors as though they had
4900-784: Was unveiled alongside the Sony Xperia Z2 Tablet and the Sony Xperia M2 during the 2014 Mobile World Congress in Barcelona , Spain , on February 24, 2014, and was first released in Taiwan on March 24, 2014, in Singapore on April 5, 2014, and entered more markets between April and May 2014. In the United States, the Xperia Z2 was released unlocked through the Sony Store on July 21, 2014. Many reviewers praised
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