Patent
Distributed matrix switch
John C. F. Schulz,Crawford Lawrence Griffin +1 more
- 26 Oct 2005
46
TL;DR: In this article, an electrical space switch matrix having m input ports and n outputs ports, the switch matrix comprising (m.n.) / (i.j) switch blocks, each having i inputs ports and j output ports, where i is less than m and j is more than n; and a plurality of input elements and an output element being arranged so as to connect the switch blocks to the input and output ports of the switch matrices.
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Abstract: The present invention relates to an electrical space switch matrix having m input ports and n outputs ports, the switch matrix comprising (m.n.) / (i.j) switch blocks, each having i input ports and j output ports, where i is less than m and j is less than n; and a plurality of input elements and a plurality of output elements, the plurality of input elements and plurality of output elements being arranged so as to connect the switch blocks to the input and output ports of the switch matrix. In an embodiment of the invention, the input and output elements can be power splitters and power combiners respectively and are arranged so as to include crossover connection paths therebetween, with the result that crossover of connection paths is distributed between the power dividing/combining function and the switching function.
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Citations
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Stefan Scheinert
- 08 Nov 2007
TL;DR: In this paper, a distributed antenna system consisting of a base transceiver station, a plurality of distributed antenna units and a signal routing apparatus is proposed, where the uplink signal includes communication content received from at least one of the mobile units.
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Stefan Scheinert,Peter Walther +1 more
- 08 Nov 2007
TL;DR: In this paper, a distributed antenna system consisting of a plurality of antennas and a multi-port hub is proposed to operate in a first mode ('normal' mode) in which the multiport hub receives a downlink communication signal via the interface and distributes the downlink communications signal to the plurality of nodes using a selected downlink transmission frequency within a down-link frequency range and in which a second mode ('listening' mode') is also presented.
206
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- 14 Sep 2012
TL;DR: In this article, a distributed antenna system controller can determine that an undesirable signal component having a power level exceeding a threshold power is communicated via an uplink path from the remote antenna unit.
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Philip M. Wala
- 19 Dec 2003
TL;DR: In this paper, a digital radio frequency transport system that performs bi-directional simultaneous DFR distribution is provided, which includes a digital host unit and at least two digital remote units coupled to the host unit.
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Scheinert Stefan
- 17 Aug 2007
TL;DR: In this article, the authors present a distributed antenna communications system and methods of implementing a distributed antennas communications system, which consists of a base station configured for communication with a telecommunications network, a multi-port repeater hub connected to the base station to receive a communications signal from the BS, and a plurality of antenna units, each coupled to one of the ports of the multicarrier hub.
145
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128
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TL;DR: In this article, a system and method for allowing a base station to simultaneously transmit signal in several beams (1, 2, 3, 4) of a multi-beam antenna configuration is described.
38
Patent
Optical switch module
Robert I. MacDonald
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TL;DR: In this paper, a system of interconnected functionally identical modules for switching P optical signals to P locations in a non-blocking manner is disclosed. And each module has at least a second port is directly coupled to another second port.
31
Patent
Microwave switching matrix
Boutelant Paul
- 20 Jul 1973
TL;DR: In this paper, an m X n microwave switching matrix is presented, including orthogonally related microwave transmission lines which may be interconnected by an appropriate number of microwave type switching diodes, such as PINs.
29