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47 results about "Fully mobile" patented technology

Direct digital sampling method for radios

InactiveUS20080261638A1Reduce impactEasy and less-expensive to implementRadio transmissionAnalogue-digital convertersMarker beaconUp conversion
A direct digital sampling and synthesis general purpose radio system is disclosed which employs single or multiple receiver and / or transmitter sub-systems that require no analog frequency conversion or translation circuitry. Receiver signal processing is disclosed that describes methods of conditioning and digitizing an entire received RF signal band in which the down conversion, channelization and demodulation are performed digitally. In addition, a method for direct synthesis of transmitter signals is also disclosed where up conversion and carrier modulation is performed digitally. Several mitigation techniques are described which aid in overcoming device limitations as well as overcoming problems created by combining multiple digital transmitters and receivers into a single integrated system. One embodiment of the invention describes an integrated VHF / UHF aircraft NAV / COMM radio system which combines a VHF transmitter with four VHF / UHF receivers all of which require no IF circuitry. This embodiment allows for multiple simultaneous airborne radio services on a single platform such as voice and data communication modes (AM, ACARS, VDLM2, LAAS, etc.) as well as navigational modes such as VOR, ILS, and Marker Beacon. By utilizing direct digital methods, the signal processing burden is moved almost entirely to the digital domain where the processing can be optimized for each signal type and where linearity is guaranteed. Fewer RF components are required which result in less unit to unit variability, lower production costs, and improved reliability.
Owner:AVIDYNE CORPORATION

Intelligent double-stage crushing station

The invention discloses an intelligent double-stage crushing station. The intelligent double-stage crushing station comprises a crawler hydraulic drive chassis, a heavy plate conveyor, an intelligent multi-unit crushing machine, an intelligent single-roller movable-jaw crushing machine, a material receiving cabin, belt conveying equipment, a main body framework, an intelligent air dust remover and an electric appliance control system, wherein all single pieces of equipment are connected in sequence through the main body framework; the heavy plate conveyor is positioned below the material receiving cabin; materials are uniformly fed to the intelligent multi-unit crushing machine through the heavy plate conveyor; the materials meeting a requirement are conveyed by the belt conveying equipment; the materials exceeding specifications are subjected to primary crushing in the intelligent multi-unit crushing machine and then are subjected to secondary crushing in the intelligent single-roller movable-jaw crushing machine; the crushed materials are conveyed by the belt conveying equipment; the intelligent air dust remover is arranged between the intelligent multi-unit crushing machine and the material receiving cabin, and performs periodic dust removal under the effect of the electric appliance control system. The intelligent double-stage crushing station breaks through the history that no domestic small-size high-throughput intelligent mobile crushing station is absent in an open-pit mine in China, realizes a fully mobile crushing and screening station on true sense and fills up the domestic blank, and a large amount of funds and occupied area are saved for the mining of the open-pit mine.
Owner:HENAN ZHENYUAN TECH

Sliding stainless steel cover plate device and actuation method thereof

The invention discloses a sliding stainless steel cover plate device and an actuation method thereof. The actuation method comprises the following steps: S1) hole edge beams are vertically arranged around a hole; S2) stainless steel waterproof baffle plates are arranged on all the hole edge beams; S3) first and second guide rails are welded on one pair of stainless steel waterproof baffle plates oppositely arranged; the first guide rail is near the inner side walls of the hole edge beams; and the second guide rail is near the outer side walls of the hole edge beams; and S4) a first sliding cover plate is arranged on the first guide rail, and moves along the first guide rail; and a second sliding cover plate is arranged on the second guide rail, and moves along the second guide rail. When the sliding stainless steel cover plate device is closed, one end, joined with the second sliding cover plate, of the first sliding cover plate extends into the second sliding cover plate by a certain distance; and when the sliding stainless steel cover plate device is opened, the first sliding cover plate totally moves into the second sliding cover plate. The sliding stainless steel cover plate device satisfies a waterproof effect when a feed port is closed, adopts stainless steel materials to prolong the service life of the sliding cover plates, and can be convenient to open the sliding cover plates in feeding or maintenance construction.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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