Patent
Radio communication system, transmitter, receiver, elevator control system, and substation facility monitoring system
TLDR
In this paper, a radio communication system includes a radio transmitter which performs up-sampling on an information signal, and performs modulation on a carrier wave using the sampled information signal to transmit the modulated carrier wave, and a radio receiver which receives transmission waves transmitted from the radio transmitter, and demodulates the information signal.Abstract:
The radio communication system includes a radio transmitter which performs up-sampling on an information signal, and performs modulation on a carrier wave using the sampled information signal to transmit the modulated carrier wave, and a radio receiver which receives transmission waves transmitted from the radio transmitter, and demodulates the information signal. The radio transmitter includes a transmission processing unit that generates the transmission waves, and a transmission unit that rotates polarized waves of the transmission waves with a predetermined rotation frequency, and wirelessly transmits the transmission waves, and the transmission processing unit copies the sampled information signal, multiplies the copied information signals by predetermined weighting factors, and generates the transmission waves by assigning the information signals on a time axis such that the copied information signals are respectively transmitted with different polarization angles.read more
Citations
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Patent
Radio communication system and radio monitoring control system
TL;DR: In this paper, a radio communication system consisting of a plurality of slave stations, each configured to transmit and receive the electromagnetic wave using the fixed polarized wave, and a master station including an antenna and a base band circuit, was provided.
Patent
Wireless Communication System
TL;DR: In this article, a wireless communication system capable of detecting propagation path modification from the outside and compensating for degradation of quality of communication between transmission and reception with respect to the propagation path modifications is provided.
Patent
Radio communication system and radio communication method
TL;DR: In this article, a radio system including a transmitter and a receiver is presented, where the transmitter transmits M types of independent rotating polarizations at the same time, and the receiver receives N different rotating polarization types at different times.
Patent
Elevator optical fiber communication method, system and device
TL;DR: In this article, the authors proposed a method to obtain operation state information indicating whether an elevator is currently safely running, and transmission state information of an optical fiber medium communication channel between an elevator controller and an elevator cab, selecting an appropriate signal transmission mode according to different states of the two components.
Patent
Radio communication system, and elevator system and transformation facility monitoring system using the same
TL;DR: In this paper, a radio communication system consisting of a transmitter and a receiver that include a plurality of antennas spatially orthogonal to each other, and performs radio communication by rotating the polarization of a carrier wave to transport an information signal.
References
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Patent
Antenna pattern matching and mounting
TL;DR: In this article, a technique for improving wireless communication characteristics involving matching transmitter antenna patterns to receiver antenna patterns was proposed, where the transmitter antenna pattern adapts to changing parameters, such as when a smartphone is initially held in a first orientation and later held in another orientation.
Patent
Near-field spatial multiplexing
Haruch Cyzs,Haim Grinberger +1 more
TL;DR: In this article, the first and second spacings are chosen so as to maximize a linear independence of the respective phases of the signals received at the receive antennas, and the first spacing is chosen to maximize the linear independence between the two phases.
Patent
Adaptive polarization diversity system
TL;DR: In this paper, an adaptive polarization diversity system for radio link communication is proposed, which includes a base station antenna for transmitting either a clockwise polarized transmission or a counter-clockwise polarization transmission, the transmission including a training pilot signal.
Patent
Enhancement of the channel propagation matrix order and rank for a wireless channel
Kevin J. Negus,James A. Proctor +1 more
TL;DR: In this article, the authors proposed a channel order and rank (ECHO) enhancement for backhaul MIMO communications channels, which is applicable to backhaul radios in terms of increased range or in the number of supportable information streams.
Patent
Wireless communication system, receiver, transmitter, warless communication method, receiving method, and transmitting method
TL;DR: In this paper, a system that combines MIMO spatial multiplexing and dual polarization transmission is presented, which accurately demodulates signals that are multiplexed doubly, both spatially and in polarization.