摘要:
A wireless serving communication unit comprises a signal processor, for receiving and processing a signal to be broadcast, and a number of transmitters operably coupled to the signal processor, for transmitting the broadcast signal in a plurality of sectorised cells to a wireless subscriber communication unit. The wireless serving communication unit comprises logic to replicate the processed signal into a plurality of replicated signals and logic introduce one or more delay(s) to one or more of the replicated processed signals, such that replicated broadcast signals having different delays are transmitted from a plurality of sectorised cells to one or more wireless subscriber communication unit.
摘要:
A wireless serving communication unit comprises a signal processor, for receiving and processing a signal to be broadcast, and a number of transmitters operably coupled to the signal processor, for transmitting the broadcast signal in a plurality of sectorised cells to a wireless subscriber communication unit. The wireless serving communication unit comprises logic to replicate the processed signal into a plurality of replicated signals and logic introduce one or more delay(s) to one or more of the replicated processed signals, such that replicated broadcast signals having different delays are transmitted from a plurality of sectorised cells to one or more wireless subscriber communication unit.
摘要:
A method of displaying a video image comprises receiving sequential image frames at a processor. Each image frame is processed to obtain a kinoform. A programmable diffractive element such as an SLM represents the sequence of kinoforns allowing reproduction of the image using a suitable illumination beam.
摘要:
An optical switch uses a polarization insensitive spatial light modulator operating by a double pass through a liquid crystal cell. The switch includes two such modulators in a cross bar arrangement. Different embodiments employing techniques for reducing cross talk are described.
摘要:
An optical switch uses a polarisation insensitive spatial light modulator operation by a double pass through a liquid crystal cell. The switch includes two such modulators in a cross bar arrangement. Different embodiments employing techniques for reducing cross talk are described.
摘要:
A method of displaying a video image comprises receiving sequential image frames at a processor. Each image frame is processed to obtain a kinoform. A programmable diffractive element such as an SLM represents the sequence of kinoforms allowing reproduction of the image using a suitable illumination beam.
摘要:
A method of delivering data to a wireless communication unit in a communication system that comprises a broadcast network and a unicast network comprises at a network element, encoding a data packet stream at a first rate for delivery over the broadcast network; encoding the same data packet stream at the first rate for delivery over the unicast network; and concurrently transmitting the encoded data packet stream over the unicast network and broadcasting the encoded data packet stream over the broadcast network.
摘要:
Methods and apparatus for fabricating structures, extrusion units, and structures fabricated using such methods and apparatus are disclosed. The apparatus may include a support configured for rotation about a central axis, a carriage that may move along the support when the support rotates about the central axis such that the carriage may move along a first spiral path about the central axis, and an extrusion unit that may be supported by the carriage and may move along a second spiral path as the carriage moves along the first spiral path. The extrusion units may be configured to extrude a strip of material through an extrusion die as the extrusion unit moves along a previously extruded strip of material such that the extruded strip may be fused onto the previously extruded strip as the extruded and previously extruded strips pass the extrusion die.
摘要:
Scheduling half duplex communication in a communication cell of a wireless communication system supporting communication between a base station and a plurality of wireless communication units is disclosed. The method comprises determining an interference potential between the at least two wireless communication units when they are respectively communicating with the base station and scheduling a half duplex communication resource to the at least two wireless communication units based on the determined interference potential.
摘要:
An optical switch uses a polarisation insensitive spatial light modulator operating by a double pass through a liquid crystal cell. The switch includes two such modulators in a cross bar arrangement. Different embodiments employing techniques for reducing cross talk are described.