Introduction
SDB is maintained by the Japanese organization ARIB. The standards can be obtained for free at the Japanese organization DiBEG website and at ARIB.The core standards of ISDB are ISDBS satellite television, ISDBTterrestrial, ISDBC cable and .GHz band mobile broadcasting which are all based on MPEG video and audio coding as well as the transport stream described by the MPEG standard, and are capable of high definition television HDTV. ISDBT and ISDBTsb are for mobile reception in TV bands. seg is the name of an ISDBT service for reception on cell phones, laptop computers and vehicles.The concept was named for its similarity to ISDN, because both allow multiple channels of data to be transmitted together a process called multiplexing. This is also much like another digital radio system, Eureka , which calls each group of stations on a transmitter an ensemble this is very much like the multichannel digital TV standard DVBT. ISDBT operates on unused TV channels, an approach taken by other countries for TV but never before for radio.
Vehicles, derived from the Latin word, vehiculum, are nonliving means of transport. Most often they are manufactured e.g. bicycles, cars, motorcycles, trains, ships, boats, and aircraft, although some other means of transport which are not made by humans also may be called vehicles examples include icebergs and floating tree trunks. Vehicles may be propelled or pulled by animals, for instance, a chariot, a stagecoach, a muledrawn barge, or an oxcart. However, animals on their own, though used as a means of transport, are not called vehicles, but rather beasts of burden or draft animals. This distinction includes humans carrying another human, for example a child or a disabled person.A rickshaw is a vehicle that may carry a human and be powered by a human, but it is the mechanical form or cart that is powered by the human that is labeled as the vehicle. For some humanpowered vehicles the human providing the power is labeled as a driver. Vehicles that do not travel on land often are called craft, such as watercraft, sailcraft, aircraft, hovercraft, and spacecraft.Land vehicles are classified broadly by what is used to apply steering and drive forces against the ground wheeled, tracked, railed, or skied.
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