Abstract: A system provides in-situ surface processing of an engine blade within an aircraft engine. The system includes an endoscopic processing instrument with a variable-angle tubular shaft. The processing instrument is inserted radially through a lateral access opening into the aircraft engine in a non-angled initial configuration. The lateral access opening is downstream of the engine blade. The processing instrument has a rotatably driven tool holder at a distal end of the shaft for a surface processing tool head. In an angled working configuration, a tool head inserted into the tool holder is applied to a flow edge of the engine blade. Furthermore, a process uses the corresponding system.

Abstract: A method for redirecting a print job request for electronic transmission is disclosed. For example, a method is executed by a processor and includes receiving a print job request for a document, analyzing the document to identify a document type, determining that the document type is a candidate for electronic transmission, causing a notification to be displayed to transmit the document electronically without executing the print job request, receiving a confirmation to transmit the document electronically, and transmitting the document electronically to a network storage device.

Abstract: In one embodiment, an over-the-air millimeter wave repeater for a communications network comprises: a donor unit including a first plurality of modular electronic components and an access point including a second plurality of modular electronic components. The donor unit communicates downlink mmWave spectrum wireless signals received from a base station to the access point and radiates uplink mmWave spectrum wireless signals received from the access point to the base station. The access point radiates the downlink mmWave spectrum wireless signals received from the donor unit into a coverage area, receives the uplink mmWave spectrum wireless signals received from the coverage area, and communicates the uplink mmWave spectrum wireless signals to the donor unit. The first and second plurality of modular electronic components includes at least one of a modular antenna component, a modular signal conditioning component, a modular signal interface component, and a modular controller.

Abstract: In an embodiment, a communication circuit includes a frequency-shifting circuit coupled to a signal path, which is configured to carry, during a first period, an information signal having a first frequency. The frequency-shifting circuit is configured to receive a control signal, to shift the first frequency of the information signal by a second frequency in response to the control signal having a first control value, and to shift a third frequency of an interference signal on the signal path during a second period by a fourth frequency in response to the control signal having a second control value. For example, such a communication signal can be configured to shift the frequencies of an interference signal generated by the signal path out of the passband of an adjacent signal path to reduce the interference superimposed on a signal carried by the adjacent signal path.

Abstract: Systems and methods for enhancing coverage of repeater systems by time-division beamforming are provided. A repeater system includes an interface configured to communicate signals with a base station and a phased antenna array. The phased antenna array includes a plurality of antenna elements, wherein the phased antenna array is configured to generate a beam in a plurality of predefined directions and wirelessly communicate signals with user equipment in a coverage area of the phased antenna array. The repeater system further includes a beamforming circuit communicatively coupled to the phased antenna array, wherein the beamforming circuit is configured to adjust a direction of the beam generated by the phased antenna array to correspond to one of the plurality of predefined directions at a particular time according to a schedule.

Abstract: In one embodiment, a RF signal repeater switchable between SISO and MIMO comprises: a controller; a first transmitter path switchably coupled to first donor and coverage antennas; a second transmitter path switchably coupled to second donor and coverage antennas; a first receiver path switchably coupled to the first donor and coverage antennas; a second receiver path switchably coupled to the second donor and coverage antennas. The controller configures the repeater for a MIMO TDD operating mode by: configuring the first transmitter path and the second receiver path to repeat at least a first MIMO channel of UE uplink RF signals and at least a first MIMO channel of base station downlink RF signals; and configuring the second transmitter path and the first receiver path to repeat at least a second MIMO channel of UE uplink RF signals and at least a second MIMO channel of base station downlink RF signals.

Abstract: Embodiments of repeater systems (such as single-node repeaters and distributed antenna systems) suitable for use with 5G NR base stations are disclosed.

Abstract: The present invention relates to a robot (2) configured to pick up and transport items; wherein the robot (2) comprises a pick up unit (10), wherein the pick up unit (10) comprises a pick up device (110) configured to pick up and release items, wherein the robot (2) is configured to move the pick up device (110) along a first direction, rotate the pick up device (110) around a first axis, and extend and retract the pick up device (110) along a second direction different from the first direction; wherein the robot (2) further comprises a shelf unit (8) configured to temporarily store items, wherein the shelf unit (8) comprises a rotatable portion (80) and a support structure (84), wherein the rotatable portion (80) is rotatable with respect to the support structure (84). The present invention also relates to a use of the robot and to a corresponding method.

Abstract: A switching control module can optimize time division duplexing operations of a distributed antenna system (“DAS”). The switching control module can include a measurement receiver and a processor. The measurement receiver can measure signal powers of downlink signals in a downlink path of the DAS. The processor can determine start times for downlink sub-frames transmitted via the downlink path based on downlink signal powers measured by the measurement receiver exceeding a threshold signal power. The processor can identify a clock setting that controls a timing of switching signals used for switching the DAS between an uplink mode and a downlink mode. The processor can statistically determine a switching time adjustment for the clock setting based on switching time differentials between the clock setting and the start times. The processor can update the clock setting based on the switching time adjustment.

Abstract: In one example, a system includes a central unit and a plurality of radiating points communicatively coupled to the central unit and located remotely from the central unit. Each respective radiating point includes a detector configured to evaluate uplink signals received from a coverage area of the respective radiating point. The detector is further configured to determine which services of a plurality of services supported by the system are needed and which services of the plurality of services supported by the system are not needed based on the evaluation of the uplink signals. The detector is further configured to send a request, to the central unit, to activate a service determined to be needed.

Abstract: One embodiment is directed to an open radio access network to provide wireless coverage for a plurality of cells at a site and that comprises a virtualized headend comprising one or more base-station nodes and a plurality of unified remote units deployed at the site. Each of the unified remote units is able to support multiple functional splits, multiple wireless interface protocols, multiple generations of radio access technology, and multiple frequency bands. The unified remote units and functional split used to serve each cell can be changed (for example, on-the-fly as a part of an automatic or manual adaptation process that is a function of one or more monitored performance attributes of the open radio access network such as network bandwidth, network latency, processing load, or processing performance). The unified remote units can be implemented in a modular manner with a backplane to which different radio modules can be coupled.

Abstract: The present invention relates to a robot (2) configured to pick up and transport items; wherein the robot (2) comprises a pick up unit (10), wherein the pick up unit (10) comprises a pick up device (110) configured to pick up and release items, wherein the robot (2) is configured to move the pick up device (110) along a first direction, rotate the pick up device (110) around a first axis, and extend and retract the pick up device (110) along a second direction different from the first direction; wherein the robot (2) further comprises a shelf unit (8) configured to temporarily store items, wherein the shelf unit (8) comprises a rotatable portion (80) and a support structure (84), wherein the rotatable portion (80) is rotatable with respect to the support structure (84). The present invention also relates to a use of the robot and to a corresponding method.

Abstract: In one embodiment, an over-the-air millimeter wave repeater for a communications network comprises: a donor unit including a first plurality of modular electronic components and an access point including a second plurality of modular electronic components. The donor unit communicates downlink mmWave spectrum wireless signals received from a base station to the access point and radiates uplink mmWave spectrum wireless signals received from the access point to the base station. The access point radiates the downlink mmWave spectrum wireless signals received from the donor unit into a coverage area, receives the uplink mmWave spectrum wireless signals received from the coverage area, and communicates the uplink mmWave spectrum wireless signals to the donor unit. The first and second plurality of modular electronic components includes at least one of a modular antenna component, a modular signal conditioning component, a modular signal interface component, and a modular controller.

Abstract: In one example, a communications device includes transmit and receive signal paths, a duplexer coupled to the transmit and receive signal paths, and a feedback signal path coupled to the transmit signal path, wherein a portion of a transmit signal is decoupled into the feedback signal path as a feedback signal. The communications device further includes ADCs to convert feedback and receive signals to a digital feedback and receive signals. The communications device further includes a digital interference cancellation circuit to receive the digital feedback and receive signals, the digital interference cancellation circuit configured to: modify amplitude and phase of the digital feedback signal to generate a modified feedback signal; compensate the modified feedback signal for an impulse response of a coupling channel to generate a compensated, modified feedback signal; and combine the compensated, modified feedback signal with the digital receive signal to cancel, reduce, attenuate, or eliminate inference.

Abstract: A technoscopic instrument (1) for machining surfaces in technical cavities, includes a stationary, tubular shank (7) and a tool unit (11), for holding a machining tool (13), arranged distally on the shank (7) and pivotable transversely to a longitudinal axis (37) thereof by way of a joint (9). The tool unit (11) is coupled to a first adjusting unit (17) which is arranged proximally on the instrument (1). The pivotable tool unit (11) includes an end section (43) which is arranged distally to the joint (9), is mounted in an axially displaceably and via an elongate control element (49) which is pull-rigid, push-stiff and pliable transverse to its longitudinal axial extension is coupled to a second adjusting unit (23) which is arranged proximally on the instrument (1) and which is provided independently and separately of the first adjusting unit (17), for selective telescoping of the end section (43).

Abstract: In one example, a system includes a central unit and a plurality of radiating points communicatively coupled to the central unit and located remotely from the central unit. Each respective radiating point includes a detector configured to evaluate uplink signals received from a coverage area of the respective radiating point. The detector is further configured to determine which services of a plurality of services supported by the system are needed and which services of the plurality of services supported by the system are not needed based on the evaluation of the uplink signals. The detector is further configured to send a request, to the central unit, to activate a service determined to be needed.

Abstract: A robot is adapted to pick up and transport objects and comprises a base plate, a drive unit, a pick up unit and a shelf unit, wherein the drive unit, the pick up unit and the shelf unit are positioned on the base plate. In addition, a method of transporting at least one object, comprising: providing the robot, the robot going to a first storing location where a first object is stored, the robot picking up the first object, and the robot transporting the first object to a first destiny location.

Abstract: Systems and methods for enhancing coverage of repeater systems by time-division beamforming are provided. A repeater system includes an interface configured to communicate signals with a base station and a phased antenna array. The phased antenna array includes a plurality of antenna elements, wherein the phased antenna array is configured to generate a beam in a plurality of predefined directions and wirelessly communicate signals with user equipment in a coverage area of the phased antenna array. The repeater system further includes a beamforming circuit communicatively coupled to the phased antenna array, wherein the beamforming circuit is configured to adjust a direction of the beam generated by the phased antenna array to correspond to one of the plurality of predefined directions at a particular time according to a schedule.

Abstract: One embodiment is directed to a repeater system configured for use with a base station that implements a wireless interface that makes use of control transmissions that are retransmittable (for example, LTE PRACH transmissions). The repeater system implements a simplified mute or squelch function that transitions the repeater circuitry from a muted state to an unmuted state in response to a received power level crossing a first threshold value in connection with a first control transmission. Although that first control transmission will be lost, the repeater circuitry is configured to remain in the unmuted state in order to handle a retransmitted control transmission and to handle any associated subsequent control and user transmissions. The repeater system can be implemented as a single-node repeater and/or a distributed antenna system. Other embodiments are disclosed.

Abstract: A repeater with redundancy functions for a wireless communication system is provided. The repeater includes downlink repeater circuitry, uplink repeater circuitry, a detection function, at least one memory and a controller. The detection function is configured to detect conditions of communications between the base stations and the repeater. The at least one memory is used to store a primary configuration that sets out parameters for interfacing communications between the repeater and a primary base station of the base stations and at least one secondary configuration that sets out parameters for interfacing communications between the repeater and at least one secondary base station of the base stations and/or a secondary signal line of signal lines between the repeater and the primary base station.