Abstract: Disclosed is a rotary drive apparatus comprising a housing, within which is located a first rotor and second rotor, the first rotor being rotatable about a first axis and having a rotor element projecting radially therefrom, and a second rotor being rotatable about a second axis parallel to the first axis and in a direction opposite to the first rotor, the second rotor comprising a recess able to receive the rotor element, wherein the first rotor and the second rotor and housing define a chamber around the first rotor through which the rotor element passes, the chamber having an inlet and an outlet through which a fluid can enter and exit the chamber.

Abstract: A rotary drive apparatus includes a housing, within which is located a first rotor and second rotor. The first rotor is rotatable about a first axis and has a rotor element projecting radially therefrom. The second rotor is rotatable about a second axis parallel to the first axis and in a direction opposite to the first rotor. The second rotor includes a recess able to receive the rotor element. The first rotor and the second rotor and housing define a chamber around the first rotor through which the rotor element passes. The chamber has an inlet and an outlet through which a fluid can enter and exit the chamber.

Abstract: Movement of an autonomously motile device may be controlled by a user device. The user device may display image data captured by a camera of the autonomously motile device; a user may provide input, such as a touch gesture on a display screen, indicating a command for the autonomously motile device to move to a location indicated by the input. The autonomously motile device determines a coordinate of the input and a time of the touch input; the autonomously motile device then determines a direction and distance of a corresponding movement.

Abstract: An autonomous mobile device (AMD) moves in a physical space and uses a dock located at a first pose. Sometimes a user may move the dock. To determine whether the dock has moved, the AMD compares first pose data that was previously obtained while at the dock in the first pose to second pose data, such as after a restart or after leaving the dock. If a difference between the first pose and the second pose is greater than a threshold, the dock has moved. The pose data may be determined using a simultaneous localization and mapping (SLAM) algorithm to process images from cameras on the AMD. Transform data that relates coordinates of the second pose to coordinates of the first pose may be determined. If the dock is used as an origin for a map of the physical space, the transform data may be used to update the map.

Abstract: Disclosed is a rotary drive apparatus comprising a housing, within which is located a first rotor and second rotor, the first rotor being rotatable about a first axis and having a rotor element projecting radially therefrom, and a second rotor being rotatable about a second axis parallel to the first axis and in a direction opposite to the first rotor, the second rotor comprising a recess able to receive the rotor element, wherein the first rotor and the second rotor and housing define a chamber around the first rotor through which the rotor element passes, the chamber having an inlet and an outlet through which a fluid can enter and exit the chamber.

Abstract: Movement of an autonomously motile device may be controlled by a user device. The user device may display image data captured by a camera of the autonomously motile device; a user may provide input, such as a touch gesture on a display screen, indicating a command for the autonomously motile device to move to a location indicated by the input. The autonomously motile device determines a coordinate of the input and a time of the touch input; the autonomously motile device then determines a direction and distance of a corresponding movement.

Abstract: Movement of an autonomously motile device may be controlled by a user device. The user device may display image data captured by a camera of the autonomously motile device; a user may provide input, such as a touch gesture on a display screen, indicating a command for the autonomously motile device to move to a location indicated by the input. The autonomously motile device determines a coordinate of the input and a time of the touch input; the autonomously motile device then determines a direction and distance of a corresponding movement.

Abstract: The present solution relates to an improved system and method for reducing traffic flow between the subscriber's device, network, and a charging system. The methods and systems described herein can provide a mediator (or buffer) between the network and the charging system. The mediator can be controlled independently of the charging system and for each client device on the network can run an instance of a quota cache. The charging system can provide the quota cache with a service quota that is allocated out as resource grans to the client device over a given period of time. The mediator can be configured to include a plurality of charging and reporting parameters, which determine how the mediator reports subscriber consumption back to the charging system. The mediator can receive the consumption updates from the client device and aggregate the consumption and report back to the charging system at predefined intervals.

Abstract: System and methods of cellular communications network are described herein. In one system, an antenna array is described. The antenna array has a first beamforming arrangement for producing uplink beams and a second beamforming arrangement for producing downlink beams. The first and second beamforming arrangements are different from one another. The wireless communication network communicates with a mobile station by use of the uplink and downlink beamforming arrangements.

Abstract: The invention provides an antenna array suitable for use in a base station in a wireless communications network, the antenna array having a first beamforming arrangement for producing uplink beams and a second beamforming arrangement for producing downlink beams, wherein the first and second beamforming arrangements are different from one another. Preferably the first and second beamforming arrangements feed a common antenna array to produce the uplink and downlink beams. Particularly preferably a plurality of (sin x/x) beams are formed for the uplink, and a plurality of low cusp beams are formed for the downlink. These are advantageously dual polar, in order to achieve diversity gain. In a preferred embodiment, the antenna array is arranged such that three dual polar low cusp beams are formed for the downlink, and six dual polar (sin x/x) beams are formed for the uplink.

Abstract: The invention provides an antenna array suitable for use in a base station in a wireless communications network, the antenna array having a first beamforming arrangement for producing uplink beams and a second beamforming arrangement for producing downlink beams, wherein the first and second beamforming arrangements are different from one another. Preferably the first and second beamforming arrangements feed a common antenna array to produce the uplink and downlink beams. Particularly preferably a plurality of (sin x/x) beams are formed for the uplink, and a plurality of low cusp beams are formed for the downlink. These are advantageously dual polar, in order to achieve diversity gain. In a preferred embodiment, the antenna array is arranged such that three dual polar low cusp beams are formed for the downlink, and six dual polar (sin x/x) beams are formed for the uplink.

Abstract: The invention provides an antenna array suitable for use in a base station in a wireless communications network, the antenna array having a first beamforming arrangement for producing uplink beams and a second beamforming arrangement for producing downlink beams, wherein the first and second beamforming arrangements are different from one another. Preferably the first and second beamforming arrangements feed a common antenna array to produce the uplink and downlink beams. Particularly preferably a plurality of (sin x/x) beams are formed for the uplink, and a plurality of low cusp beams are formed for the downlink. These are advantageously dual polar, in order to achieve diversity gain. In a preferred embodiment, the antenna array is arranged such that three dual polar low cusp beams are formed for the downlink, and six dual polar (sin x/x) beams are formed for the uplink.

Abstract: This invention relates to internal antenna arrangements for radio communications handsets. Internal antenna size and shape represents a constraint on handset miniaturisation if good antenna efficiency and bandwidth characteristics are to be maintained. The use of acoustic enhancing volumes of free space about a handset's speaker unit also constrains further miniaturisation. The present invention provides an internal antenna arrangement which facilities further miniaturisation and which combines antenna volume with the acoustic enhancing volume.

Abstract: A frame element assembly suitable for forming the frame of a display holder, the frame element assembly having a base portion and a retaining leaf, the retaining leaf being pivotally mounted with respect to the base portion, the retaining leaf being held in a pivotal arrangement by a bow spring, the assembly being adapted such that in use the retaining leaf can pivot between an “open” position in which display material can be inserted or removed from the display holder and a “closed” position in which display material is retained within the display holder. The assembly is adapted such that the retaining leaf is removably mounted with respect to the pivot arrangement when the display holder is in its assembled state.

Abstract: This invention relates to an antenna operable in a multi-mode radio transceiver. One aspect of the present invention, provides a radio antenna having resonant frequencies operable to receive and transmit radio signals in different frequency bands according to two operating protocols. In accordance with another aspect of the invention the antenna is operable according to more than two operating protocols and frequency bands. In accordance with another aspect of the invention, there is provided a method of operating the antenna.

Abstract: This invention relates to an antenna operable in a multi-mode radio transceiver. One aspect of the present invention, provides a radio antenna having resonant frequencies operable to receive and transmit radio signals in different frequency bands according to two operating protocols.

Abstract: A doll which can be posed in various life-like athletic positions. The doll is constructed of sub-units connected to one another by ball and socket joints. A skin which encloses the sub-units is secured to the sub units by insertion of appendages into sockets in the sub-units and by means of a fastener which snaps into a groove pinning the skin to the doll.

Abstract: A level constructed of clear acrylic plastic including a piece of colored acrylic plastic which serves as a light collector and a continuous passageway in the clear acrylic which reflects the light collected by the piece of colored plastic. By partially filling the passageway with liquid, a line of reflected light appears on the wall of the passageway above the interface between the liquid surface in the passageway and the unfilled portion of the passageway, whereby the level is easier to read than ordinary bubble type levels.