4x Kryo 2.2 GHz
51-528: 1620 x 1080 pixels , 429 ppi The BlackBerry Key2 (stylized as BlackBerry KEY² ) is a touchscreen -based Android smartphone with a portrait-oriented, fixed (not sliding) integrated hardware keyboard that is manufactured by TCL Corporation under the brand name of BlackBerry Mobile . Originally known by its unofficial codename " Athena ", the Key2 was officially announced in New York on June 7, 2018. The Key2
102-412: A native resolution , and it should (ideally) be matched to the video card resolution. Each pixel is made up of triads , with the number of these triads determining the native resolution. On older, historically available, CRT monitors the resolution was possibly adjustable (still lower than what modern monitor achieve), while on some such monitors (or TV sets) the beam sweep rate was fixed, resulting in
153-545: A regular two-dimensional grid . By using this arrangement, many common operations can be implemented by uniformly applying the same operation to each pixel independently. Other arrangements of pixels are possible, with some sampling patterns even changing the shape (or kernel ) of each pixel across the image. For this reason, care must be taken when acquiring an image on one device and displaying it on another, or when converting image data from one pixel format to another. For example: Computer monitors (and TV sets) generally have
204-551: A "pixel" may refer to a fixed length rather than a true pixel on the screen to accommodate different pixel densities . A typical definition, such as in CSS , is that a "physical" pixel is 1 ⁄ 96 inch (0.26 mm). Doing so makes sure a given element will display as the same size no matter what screen resolution views it. There may, however, be some further adjustments between a "physical" pixel and an on-screen logical pixel. As screens are viewed at difference distances (consider
255-420: A 1200 dpi inkjet printer. Even higher dpi numbers, such as the 4800 dpi quoted by printer manufacturers since 2002, do not mean much in terms of achievable resolution . The more pixels used to represent an image, the closer the result can resemble the original. The number of pixels in an image is sometimes called the resolution, though resolution has a more specific definition. Pixel counts can be expressed as
306-416: A detector (e.g. a charge-coupled device ) which is used to produce images that are interpreted in terms of both microstructure of inorganic or biological materials, as well as atomic scale structure. The map of the intensity of scattered electrons or x-rays as a function of direction is also extensively used in crystallography . In photometry and radiometry intensity has a different meaning: it
357-466: A distance. In some displays, such as LCD, LED, and plasma displays, these single-color regions are separately addressable elements, which have come to be known as subpixels , mostly RGB colors. For example, LCDs typically divide each pixel vertically into three subpixels. When the square pixel is divided into three subpixels, each subpixel is necessarily rectangular. In display industry terminology, subpixels are often referred to as pixels , as they are
408-450: A fixed native resolution . What it is depends on the monitor, and size. See below for historical exceptions. Computers can use pixels to display an image, often an abstract image that represents a GUI . The resolution of this image is called the display resolution and is determined by the video card of the computer. Flat-panel monitors (and TV sets), e.g. OLED or LCD monitors, or E-ink , also use pixels to display an image, and have
459-426: A fixed native resolution. Most CRT monitors do not have a fixed beam sweep rate, meaning they do not have a native resolution at all – instead they have a set of resolutions that are equally well supported. To produce the sharpest images possible on an flat-panel, e.g. OLED or LCD, the user must ensure the display resolution of the computer matches the native resolution of the monitor. The pixel scale used in astronomy
510-457: A measured intensity level. In most digital cameras, the sensor array is covered with a patterned color filter mosaic having red, green, and blue regions in the Bayer filter arrangement so that each sensor element can record the intensity of a single primary color of light. The camera interpolates the color information of neighboring sensor elements, through a process called demosaicing , to create
561-730: A non-magnetic material, is given by: ⟨ U ⟩ = n 2 ε 0 2 | E | 2 , {\displaystyle \left\langle U\right\rangle ={\frac {n^{2}\varepsilon _{0}}{2}}|E|^{2},} and the local intensity is obtained by multiplying this expression by the wave velocity, c n : {\displaystyle {\tfrac {\mathrm {c} }{n}}\!:} I = c n ε 0 2 | E | 2 , {\displaystyle I={\frac {\mathrm {c} n\varepsilon _{0}}{2}}|E|^{2},} where For non-monochromatic waves,
SECTION 10
#1732775947783612-474: A phone, a computer display, and a TV), the desired length (a "reference pixel") is scaled relative to a reference viewing distance (28 inches (71 cm) in CSS). In addition, as true screen pixel densities are rarely multiples of 96 dpi, some rounding is often applied so that a logical pixel is an integer amount of actual pixels. Doing so avoids render artifacts. The final "pixel" obtained after these two steps becomes
663-761: A recognized fingerprint. TDD-LTE bands 38(2600), 39(1900), 40(2300), 41(2500) HSPA+ bands 1, 2, 4, 5/6, 8 (2100/1900/1700/850/900 MHz) Quad band GSM/GPRS/EDGE (850/900/1800/1900 MHz) TDD-LTE bands 38(2600), 39(1900), 40(2300), 41(2500) HSPA+ bands 1, 2, 4, 5/6, 8 (2100/1900/1700/850/900 MHz) Quad band GSM/GPRS/EDGE (850/900/1800/1900 MHz) TDD-LTE bands 38(2600), 39(1900), 40(2300), 41(2500) HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 & CDMA Quad band GSM/GPRS/EDGE (850/900/1800/1900 MHz) ( Dual SIM ) TDD-LTE bands 38(2600), 39(1900), 40(2300), 41(2500) HSPA+ bands 1, 2, 4, 5/6, 8 (2100/1900/1700/850/900 MHz) Quad band GSM/GPRS/EDGE (850/900/1800/1900 MHz) BlackBerry has slightly changed
714-419: A single number, as in a "three-megapixel" digital camera, which has a nominal three million pixels, or as a pair of numbers, as in a "640 by 480 display", which has 640 pixels from side to side and 480 from top to bottom (as in a VGA display) and therefore has a total number of 640 × 480 = 307,200 pixels, or 0.3 megapixels. The pixels, or color samples, that form a digitized image (such as a JPEG file used on
765-403: A single scalar element of a multi-component representation (called a photosite in the camera sensor context, although sensel ' sensor element ' is sometimes used), while in yet other contexts (like MRI) it may refer to a set of component intensities for a spatial position. Software on early consumer computers was necessarily rendered at a low resolution, with large pixels visible to
816-566: A trackpad, and integrates a fingerprint scanner into the space bar. The keyboard also features a “Speed Key”, the first new key introduced on a BlackBerry keyboard in over a decade, which allows users to quickly switch between applications using programmable key shortcuts. The Key2 is powered by an octa-core Qualcomm Snapdragon 660, and features a non-removable 3500 mAh battery which provides between 25 and 35 hours of use between charges. The phone features an 8MP front-facing camera and dual 12MP rear cameras with LED flash. The entry-level version of
867-740: A uniform intensity, | I | = const. , over a surface that is perpendicular to the intensity vector, for instance over a sphere centered around the point source, the equation becomes P = | I | ⋅ A s u r f = | I | ⋅ 4 π r 2 , {\displaystyle P=|I|\cdot A_{\mathrm {surf} }=|I|\cdot 4\pi r^{2},} where Solving for | I | gives | I | = P A s u r f = P 4 π r 2 . {\displaystyle |I|={\frac {P}{A_{\mathrm {surf} }}}={\frac {P}{4\pi r^{2}}}.} If
918-426: A unit of measure such as: 2400 pixels per inch, 640 pixels per line, or spaced 10 pixels apart. The measures " dots per inch " (dpi) and " pixels per inch " (ppi) are sometimes used interchangeably, but have distinct meanings, especially for printer devices, where dpi is a measure of the printer's density of dot (e.g. ink droplet) placement. For example, a high-quality photographic image may be printed with 600 ppi on
969-432: A web page) may or may not be in one-to-one correspondence with screen pixels, depending on how a computer displays an image. In computing, an image composed of pixels is known as a bitmapped image or a raster image . The word raster originates from television scanning patterns, and has been widely used to describe similar halftone printing and storage techniques. For convenience, pixels are normally arranged in
1020-406: Is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue , or cyan, magenta, yellow, and black . In some contexts (such as descriptions of camera sensors ), pixel refers to
1071-403: Is available: this means that each 24-bit pixel has an extra 8 bits to describe its opacity (for purposes of combining with another image). Many display and image-acquisition systems are not capable of displaying or sensing the different color channels at the same site. Therefore, the pixel grid is divided into single-color regions that contribute to the displayed or sensed color when viewed at
SECTION 20
#17327759477831122-485: Is generally thought of as the smallest single component of a digital image . However, the definition is highly context-sensitive. For example, there can be " printed pixels " in a page, or pixels carried by electronic signals, or represented by digital values, or pixels on a display device, or pixels in a digital camera (photosensor elements). This list is not exhaustive and, depending on context, synonyms include pel, sample, byte, bit, dot, and spot. Pixels can be used as
1173-630: Is the angular distance between two objects on the sky that fall one pixel apart on the detector (CCD or infrared chip). The scale s measured in radians is the ratio of the pixel spacing p and focal length f of the preceding optics, s = p / f . (The focal length is the product of the focal ratio by the diameter of the associated lens or mirror.) Because s is usually expressed in units of arcseconds per pixel, because 1 radian equals (180/π) × 3600 ≈ 206,265 arcseconds, and because focal lengths are often given in millimeters and pixel sizes in micrometers which yields another factor of 1,000,
1224-633: Is the successor to the BlackBerry KeyOne , and the seventh BlackBerry smartphone to run the Android operating system. It was released on July 13, 2018. An entry-level variant, the Key2 LE, was introduced in October of the same year. The Key2 measures 151.4 x 71.8 x 8.5 mm, and features a 4.5" 3:2 aspect ratio multi-touch touchscreen. The top of the phone features a headphone jack, while
1275-405: Is used most frequently with waves such as acoustic waves ( sound ), matter waves such as electrons in electron microscopes , and electromagnetic waves such as light or radio waves , in which case the average power transfer over one period of the wave is used. Intensity can be applied to other circumstances where energy is transferred. For example, one could calculate the intensity of
1326-579: The Sigma 35 mm f/1.4 DG HSM lens mounted on a Nikon D800 has the highest measured P-MPix. However, with a value of 23 MP, it still wipes off more than one-third of the D800's 36.3 MP sensor. In August 2019, Xiaomi released the Redmi Note 8 Pro as the world's first smartphone with 64 MP camera. On December 12, 2019 Samsung released Samsung A71 that also has a 64 MP camera. In late 2019, Xiaomi announced
1377-427: The kinetic energy carried by drops of water from a garden sprinkler . The word "intensity" as used here is not synonymous with " strength ", " amplitude ", " magnitude ", or " level ", as it sometimes is in colloquial speech. Intensity can be found by taking the energy density (energy per unit volume) at a point in space and multiplying it by the velocity at which the energy is moving. The resulting vector has
1428-494: The original PC . Pixilation , spelled with a second i , is an unrelated filmmaking technique that dates to the beginnings of cinema, in which live actors are posed frame by frame and photographed to create stop-motion animation. An archaic British word meaning "possession by spirits ( pixies )", the term has been used to describe the animation process since the early 1950s; various animators, including Norman McLaren and Grant Munro , are credited with popularizing it. A pixel
1479-410: The "anchor" to which all other absolute measurements (e.g. the "centimeter") are based on. Worked example, with a 30-inch (76 cm) 2160p TV placed 56 inches (140 cm) away from the viewer: A browser will then choose to use the 1.721× pixel size, or round to a 2× ratio. A megapixel ( MP ) is a million pixels; the term is used not only for the number of pixels in an image but also to express
1530-436: The "total" pixel count. The number of pixels is sometimes quoted as the "resolution" of a photo. This measure of resolution can be calculated by multiplying the width and height of a sensor in pixels. Digital cameras use photosensitive electronics, either charge-coupled device (CCD) or complementary metal–oxide–semiconductor (CMOS) image sensors, consisting of a large number of single sensor elements, each of which records
1581-541: The 1888 German patent of Paul Nipkow . According to various etymologies, the earliest publication of the term picture element itself was in Wireless World magazine in 1927, though it had been used earlier in various U.S. patents filed as early as 1911. Some authors explain pixel as picture cell, as early as 1972. In graphics and in image and video processing, pel is often used instead of pixel . For example, IBM used it in their Technical Reference for
BlackBerry Key2 - Misplaced Pages Continue
1632-590: The Key2 LE is equipped with a smaller 3,000 mAh battery. The Key2 LE is available with either 32 or 64 GB of internal storage space. BlackBerry Key2 ships with Android Oreo 8.1. The Key2 is preloaded with a number of BlackBerry applications, including BlackBerry Hub, which consolidates emails, calendar alerts, messages, and phone calls into a unified inbox. The phone also includes the BlackBerry DTEK security center, and BlackBerry Locker, which can be used to secure sensitive photos, files, and applications with
1683-410: The Key2, the Key2 LE, was introduced with a $ 399 US base price, a significant markdown from the $ 649 Key2. The Key2 LE features many of the same amenities of its upscale brethren, although it lacks the touch-sensitive keyboard and aluminum body (instead having a plastic construction). The Key2 LE also has the less powerful Snapdragon 636 processor and only 4 GB of RAM compared to the original six. As well,
1734-654: The Moon and Mars. Billingsley had learned the word from Keith E. McFarland, at the Link Division of General Precision in Palo Alto , who in turn said he did not know where it originated. McFarland said simply it was "in use at the time" ( c. 1963 ). The concept of a "picture element" dates to the earliest days of television, for example as " Bildpunkt " (the German word for pixel , literally 'picture point') in
1785-678: The allocation of the primary colors (green has twice as many elements as red or blue in the Bayer arrangement). DxO Labs invented the Perceptual MegaPixel (P-MPix) to measure the sharpness that a camera produces when paired to a particular lens – as opposed to the MP a manufacturer states for a camera product, which is based only on the camera's sensor. The new P-MPix claims to be a more accurate and relevant value for photographers to consider when weighing up camera sharpness. As of mid-2013,
1836-529: The basic addressable elements in a viewpoint of hardware, and hence pixel circuits rather than subpixel circuits is used. Most digital camera image sensors use single-color sensor regions, for example using the Bayer filter pattern, and in the camera industry these are known as pixels just like in the display industry, not subpixels . For systems with subpixels, two different approaches can be taken: This latter approach, referred to as subpixel rendering , uses knowledge of pixel geometry to manipulate
1887-471: The bottom of the phone features a USB-C port and mono speaker. The right side of the phone features the volume keys, power button, and a "convenience key" which can be programmed to launch apps, activate Google Assistant , or access other device shortcuts, and which doubles as a mute button during an active phone call. Below the display, the Key2 features a touch-enabled 35-key backlit integrated hardware keyboard which responds to swipe gestures and doubles as
1938-521: The depth is normally the sum of the bits allocated to each of the red, green, and blue components. Highcolor , usually meaning 16 bpp, normally has five bits for red and blue each, and six bits for green, as the human eye is more sensitive to errors in green than in the other two primary colors. For applications involving transparency, the 16 bits may be divided into five bits each of red, green, and blue, with one bit left for transparency. A 24-bit depth allows 8 bits per component. On some systems, 32-bit depth
1989-480: The final image. These sensor elements are often called "pixels", even though they only record one channel (only red or green or blue) of the final color image. Thus, two of the three color channels for each sensor must be interpolated and a so-called N-megapixel camera that produces an N-megapixel image provides only one-third of the information that an image of the same size could get from a scanner. Thus, certain color contrasts may look fuzzier than others, depending on
2040-452: The first camera phone with 108 MP 1/1.33-inch across sensor. The sensor is larger than most of bridge camera with 1/2.3-inch across sensor. One new method to add megapixels has been introduced in a Micro Four Thirds System camera, which only uses a 16 MP sensor but can produce a 64 MP RAW (40 MP JPEG) image by making two exposures, shifting the sensor by a half pixel between them. Using a tripod to take level multi-shots within an instance,
2091-427: The formula is often quoted as s = 206 p / f . The number of distinct colors that can be represented by a pixel depends on the number of bits per pixel (bpp). A 1 bpp image uses 1 bit for each pixel, so each pixel can be either on or off. Each additional bit doubles the number of colors available, so a 2 bpp image can have 4 colors, and a 3 bpp image can have 8 colors: For color depths of 15 or more bits per pixel,
BlackBerry Key2 - Misplaced Pages Continue
2142-501: The intensity contributions of different spectral components can simply be added. The treatment above does not hold for arbitrary electromagnetic fields. For example, an evanescent wave may have a finite electrical amplitude while not transferring any power. The intensity should then be defined as the magnitude of the Poynting vector . For electron beams , intensity is the probability of electrons reaching some particular position on
2193-400: The medium is damped, then the intensity drops off more quickly than the above equation suggests. Anything that can transmit energy can have an intensity associated with it. For a monochromatic propagating electromagnetic wave, such as a plane wave or a Gaussian beam , if E is the complex amplitude of the electric field , then the time-averaged energy density of the wave, travelling in
2244-404: The medium, then the intensity decreases in proportion to the distance from the object squared. This is an example of the inverse-square law . Applying the law of conservation of energy , if the net power emanating is constant, P = ∫ I ⋅ d A , {\displaystyle P=\int \mathbf {I} \,\cdot d\mathbf {A} ,} where If one integrates
2295-512: The multiple 16 MP images are then generated into a unified 64 MP image. Intensity (physics) In physics and many other areas of science and engineering the intensity or flux of radiant energy is the power transferred per unit area , where the area is measured on the plane perpendicular to the direction of propagation of the energy. In the SI system, it has units watts per square metre (W/m ), or kg ⋅ s in base units . Intensity
2346-479: The naked eye; graphics made under these limitations may be called pixel art , especially in reference to video games. Modern computers and displays, however, can easily render orders of magnitude more pixels than was previously possible, necessitating the use of large measurements like the megapixel (one million pixels). The word pixel is a combination of pix (from "pictures", shortened to "pics") and el (for " element "); similar formations with ' el' include
2397-401: The number of image sensor elements of digital cameras or the number of display elements of digital displays . For example, a camera that makes a 2048 × 1536 pixel image (3,145,728 finished image pixels) typically uses a few extra rows and columns of sensor elements and is commonly said to have "3.2 megapixels" or "3.4 megapixels", depending on whether the number reported is the "effective" or
2448-516: The specs especially for APAC region and launched a dual sim variant, named BBF100-6 in India, via OnlyMobiles. Pixels In digital imaging , a pixel (abbreviated px ), pel , or picture element is the smallest addressable element in a raster image , or the smallest addressable element in a dot matrix display device . In most digital display devices , pixels are the smallest element that can be manipulated through software. Each pixel
2499-453: The three colored subpixels separately, producing an increase in the apparent resolution of color displays. While CRT displays use red-green-blue-masked phosphor areas, dictated by a mesh grid called the shadow mask, it would require a difficult calibration step to be aligned with the displayed pixel raster, and so CRTs do not use subpixel rendering. The concept of subpixels is related to samples . In graphic, web design, and user interfaces,
2550-399: The units of power divided by area (i.e., surface power density ). The intensity of a wave is proportional to the square of its amplitude. For example, the intensity of an electromagnetic wave is proportional to the square of the wave's electric field amplitude. If a point source is radiating energy in all directions (producing a spherical wave ), and no energy is absorbed or scattered by
2601-513: The words voxel ' volume pixel ' , and texel ' texture pixel ' . The word pix appeared in Variety magazine headlines in 1932, as an abbreviation for the word pictures , in reference to movies. By 1938, "pix" was being used in reference to still pictures by photojournalists. The word "pixel" was first published in 1965 by Frederic C. Billingsley of JPL , to describe the picture elements of scanned images from space probes to
SECTION 50
#1732775947783#782217