|
WirelessHD
WirelessHD, also known as UltraGig, is a proprietary standard owned by Silicon Image (originally SiBeam) for wireless transmission of high-definition video content for consumer electronics products. The consortium currently has over 40 adopters; key members behind the specification include Broadcom, Intel, LG, Panasonic, NEC, Samsung, SiBEAM, Sony, Philips and Toshiba. The founders intend the technology to be used for Consumer Electronic devices, PCs, and portable devices. The specification was finalized in January 2008. Technology The WirelessHD specification is based on a 7 GHz channel in the 60 GHz Extremely High Frequency radio band. It allows either lightly compressed (proprietary wireless link-aware codec) or uncompressed digital transmission of high-definition video and audio and data signals, essentially making it equivalent of a wireless HDMI. First-generation implementation achieves data rates from 4 Gbit/s, but the core technology allows theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Image
Silicon Image Inc. was an American fabless semiconductor company based in Hillsboro, Oregon, and active from 1995 to 2015. The company designed circuits for mobile phones, consumer electronics and personal computers (PCs). It also manufactured wireless and wired connectivity products used for high-definition content. The company's semiconductor and IP products were deployed by manufacturers in devices such as smartphones, tablets, digital televisions (DTVs), and other consumer electronics, as well as desktop and notebook PCs. Silicon Image, in cooperation with other companies, was influential in the creation of some global industry standards such as DVI, HDMI, MHL, and WirelessHD. Silicon Image was founded in 1995, and was headquartered in Sunnyvale, California, before moving to Hillsboro. The company reached peak employment of around 600 people worldwide and had regional engineering and sales offices in India, China, Japan, Korea and Taiwan, before being acquired by Lattice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SiBEAM
SiBEAM Inc., a wholly owned subsidiary of Lattice Semiconductor, is a fabless semiconductor company that provides integrated circuits and system products for millimeter-wave (mmWave) wireless communications and sensing. SiBEAM was founded to commercialize pioneering millimeter wave wireless technology developed at the labs of University of California, Berkeley. The company was also first to market with wireless gigabit mobile video products. SiBEAM is based in Sunnyvale. History SiBEAM was founded in 2004 by researchers in wireless communications from the University of California, Berkeley. Backed by companies including Panasonic, Samsung, Cisco Systems, and Best Buy. The company raised over $112 million of venture capital financing from U.S. Venture Partners, New Enterprise Associates, Foundation Capital, and Lux Capital in 2004, 2005, 2006, 2008, and 2010. SiBEAM was noted by several publications as one of the promising startup companies in its industry. In April, 2011 SiB ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless HDMI
Wireless HDMI is the wireless transmission of high-definition audio and video signals between devices, using unlicensed radio frequencies like 5 GHz, 60 GHz, or 190 GHz. This technology eliminates the need for an HDMI cable, allowing users to transmit signals wirelessly between the component device and the display device. Wireless HDMI converts the HDMI cable signal into a radio frequency which is broadcast across the wireless spectrum. This allows for video source and display device to be in different rooms, without the need for cables. The technology emerged in the early 2000s. Examples * Proprietary protocols for wireless transmission, e.g., LG "Wireless 1080p", Philips "Wireless HDTV Link", Sony "Bravia Wireless Link", Asus "Wireless Display Connectivity", etc. * Proprietary video compression schemes that work over 802.11n and similar wireless interfaces * WirelessHD * Wireless Home Digital Interface * WiGig * Asus WAVI (Wireless Audio Video Interaction) wireless HDMI us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WiGig
WiGig, alternatively known as 60 GHz Wi-Fi, refers to a set of V band, 60 GHz wireless network protocols. It includes the current IEEE 802.11ad standard and also the IEEE 802.11ay standard. The WiGig specification allows devices to communicate without wires at multi-gigabit speeds. It enables high-performance wireless data, display and audio applications that supplement the capabilities of previous wireless LAN devices. WiGig tri-band-enabled devices, which operate in the 2.4, 5 and 60 GHz bands, deliver data transfer rates up to 7 gigabit, Gbit/s (for 11ad), about as fast as an 8-band IEEE 802.11ac, 802.11ac transmission, and more than eleven times faster than the highest IEEE 802.11n-2009, 802.11n rate, while maintaining compatibility with existing Wi-Fi devices. The 60 GHz millimeter wave signal cannot typically penetrate walls but can propagate by reflection from walls, ceilings, floors and objects using beamforming built into the WiGig system. When r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consumer Electronics
Consumer electronics, also known as home electronics, are electronic devices intended for everyday household use. Consumer electronics include those used for entertainment, Communication, communications, and recreation. Historically, these products were referred to as "black goods" in American English due to many products being housed in black or dark casings. This term is used to distinguish them from "white goods", which are meant for housekeeping tasks, such as Washing machine, washing machines and Refrigerator, refrigerators. In British English, they are often called "brown goods" by producers and sellers. Since the 2010s, this distinction has been absent in Big-box store, big box Consumer electronics store, consumer electronics stores, whose inventories include entertainment, communication, and home office devices, as well as home appliances. Radio broadcasting in the early 20th century brought the first major consumer product, the radio receiver, broadcast receiver. Later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra Wideband
Ultra-wideband (UWB, ultra wideband, ultra-wide band and ultraband) is a radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio spectrum. UWB has traditional applications in non-cooperative Imaging radar, radar imaging. Most recent applications target sensor data collection, precise locating, and tracking. UWB support started to appear in high-end smartphones in 2019. Characteristics Ultra-wideband is a technology for transmitting information across a wide bandwidth (>500 Hertz, MHz). This allows for the transmission of a large amount of signal energy without interfering with conventional narrowband and carrier wave transmission in the same frequency band. Regulatory limits in many countries allow for this efficient use of radio bandwidth, and enable high-data-rate personal area network (PAN) wireless connectivity, longer-range low-data-rate applications, and the transparent co-existence of radar a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel Wireless Display (WiDi)
Wireless Display (WiDi) is discontinued technology developed by Intel that enables users to stream music, movies, photos, videos and apps without cables from a compatible computer to a compatible HDTV or through the use of an adapter with other HDTVs or computer monitors. Intel WiDi supports HD 1080p video quality, 5.1 surround sound, and low latency for interacting with applications sent to the TV from a PC running Windows 7 or later. Using the Intel WiDi Widget, users can perform different functions simultaneously on their PC and TV such as checking email on the PC while streaming a movie to the TV from the same device. WiDi development was discontinued in 2016 in favor of Miracast, a standard developed by the Wi-Fi Alliance and natively supported by Windows 8.1 and later. Intel's Wireless Display should not be confused with Microsoft's Windows 11 operating system's built-in ''Wireless Display'' app (formerly ''Connect'') which works with Miracast. Version history * 2010 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extremely High Frequency
Extremely high frequency (EHF) is the International Telecommunication Union designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz (GHz). It is in the microwave part of the radio spectrum, between the super high frequency band and the terahertz band. Radio waves in this band have wavelengths from ten to one millimeter, so it is also called the millimeter band and radiation in this band is called millimeter waves, sometimes abbreviated MMW or mmWave. Some define mmWaves as starting at 24 GHz, thus covering the entire FR2 band (24.25 to 71 GHz), among others. Compared to lower bands, radio waves in this band have high atmospheric attenuation: they are absorbed by the gases in the atmosphere. Absorption increases with frequency until at the top end of the band the waves are attenuated to zero within a few meters. Absorption by humidity in the atmosphere is significant except in desert environments, and attenuation by rain ( rain f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE 802
IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LANs), personal area networks (PANs), and metropolitan area networks (MANs). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. However, not all of these working groups are currently active. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. Isochronous signal networks, in which data is transmitted as a steady stream of octet (computing), octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Receiver
In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form. It is used with an antenna. The antenna intercepts radio waves (electromagnetic waves of radio frequency) and converts them to tiny alternating currents which are applied to the receiver, and the receiver extracts the desired information. The receiver uses electronic filters to separate the desired radio frequency signal from all the other signals picked up by the antenna, an electronic amplifier to increase the power of the signal for further processing, and finally recovers the desired information through demodulation. Radio receivers are essential components of all systems based on radio technology. The information produced by the receiver may be in the form of sound, video (television), or digital data. A radio receiver may be a separate piece of electronic equ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absorption (electromagnetic Radiation)
In physics, absorption of electromagnetic radiation is how matter (typically electrons bound in atoms) takes up a photon's energy—and so transforms electromagnetic energy into internal energy of the absorber (for example, thermal energy). A notable effect of the absorption of electromagnetic radiation is attenuation of the radiation; attenuation is the gradual reduction of the intensity of light waves as they propagate through a medium. Although the absorption of waves does not usually depend on their intensity (linear absorption), in certain conditions (optics) the medium's transparency changes by a factor that varies as a function of wave intensity, and saturable absorption (or nonlinear absorption) occurs. Quantifying absorption Many approaches can potentially quantify radiation absorption, with key examples following. * The absorption coefficient along with some closely related derived quantities * The attenuation coefficient (NB used infrequently with meaning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
