Abstract: A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.

Abstract: Described are heat assisted magnetic read-write heads that include a coupler, a waveguide, a transducer, and appurtenant structures, as well as related methods.

Abstract: A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.

Abstract: A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.

Abstract: A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.

Abstract: An apparatus and a method for mapping data and de-mapping data are provided. In the method, each modulated datum is mapped into two centrosymmetric Orthogonal Frequency Division Multiplexing (OFDM) subcarriers at the transmitting end, a certain functional transformation is performed on data in one of the two OFDM subcarriers, and original data may be restored at the receiving end according to data of the two centrosymmetric OFDM subcarriers. Exemplary embodiments of the invention also provide a transmitting device and a receiving device. By adopting embodiments of the invention, self-cancellation of interference among subcarriers may be implemented effectively, and the interference among subcarriers may be reduced.

Abstract: A method by a Mobile Terminal (MT) for positioning the MT is provided. The method includes requesting a Base Station (BS) to allocate a first transmission time for transmitting a first sounding signal for the MT, receiving the first transmission time from the BS, transmitting the first sounding signal to the BS at the first transmission time, requesting the BS to allocate a second transmission time of a second sounding signal for the MT after the MT moves, receiving the second transmission time from the BS, transmitting the second sounding signal to the BS at the second transmission time, reporting a moving distance moved during the period between the first transmission time and the second transmission time, and receiving a position of the MT determined based on the first sounding signal, the second sounding signal, and the moving distance.

Abstract: A LED flare and system for use to provide greater visibility in any light conditions, particularly in low light. The flare comprises an elongated housing that is generally cylindrical with a flat side. It has a handle at one end and a plurality of LEDs positioned along the outer periphery. A switch located on the elongated housing operates the flare. The flare also includes a re-chargeable battery encased in the housing for powering the flare and a circuit for delivering power and operational control from the battery to the LEDs upon activation by the switch. A set of contacts positioned on the outside of the housing deliver a charge to the battery. The flare includes an attachment device for holding an external charger in place against the contacts during charging operation. An individual flare may be part of a system that also includes other flares and a carrying case with an integrated charger, one or more flare stands and charger accessories.

Abstract: A LED flare and system for use at night, in low light conditions or during the day where a lighted object provides greater visibility. The flare comprises a multi-sided housing with a panel on each side and having a top and a base. It has a plurality of LEDs aligned in windows positioned in at least one of the panels. A switch located on the housing operates the flare. The flare also includes a re-chargeable battery encased in the housing for powering the flare and a circuit for delivering power and operational control from the battery to the LEDs upon activation by the switch. A set of contacts positioned on the outside of the housing deliver a charge to the battery. The flare includes an attachment device for holding an external charger in place against the contacts during charging operation. An individual flare may be part of a system that also includes other flares and a carrying case with an integrated charger and charger accessories.

Abstract: A LED flare and system for use at night, in low light conditions or during the day where a lighted object provides greater visibility. The flare comprises a multi-sided housing with a panel on each side and having a top and a base. It has a plurality of LEDs aligned in windows positioned in at least one of the panels. A switch located on the housing operates the flare. The flare also includes a re-chargeable battery encased in the housing for powering the flare and a circuit for delivering power and operational control from the battery to the LEDs upon activation by the switch. A set of contacts positioned on the outside of the housing deliver a charge to the battery. The flare includes an attachment device for holding an external charger in place against the contacts during charging operation. An individual flare may be part of a system that also includes other flares and a carrying case with an integrated charger and charger accessories.

Abstract: A LED flare and system for use to provide greater visibility in any light conditions, particularly in low light. The flare comprises an elongated housing that is generally cylindrical with a flat side. It has a handle at one end and a plurality of LEDs positioned along the outer periphery. A switch located on the elongated housing operates the flare. The flare also includes a re-chargeable battery encased in the housing for powering the flare and a circuit for delivering power and operational control from the battery to the LEDs upon activation by the switch. A set of contacts positioned on the outside of the housing deliver a charge to the battery. The flare includes an attachment device for holding an external charger in place against the contacts during charging operation. An individual flare may be part of a system that also includes other flares and a carrying case with an integrated charger, one or more flare stands and charger accessories.

Abstract: A method by a Mobile Terminal (MT) for positioning the MT is provided. The method includes requesting a Base Station (BS) to allocate a first transmission time for transmitting a first sounding signal for the MT, receiving the first transmission time from the BS, transmitting the first sounding signal to the BS at the first transmission time, requesting the BS to allocate a second transmission time of a second sounding signal for the MT after the MT moves, receiving the second transmission time from the BS, transmitting the second sounding signal to the BS at the second transmission time, reporting a moving distance moved during the period between the first transmission time and the second transmission time, and receiving a position of the MT determined based on the first sounding signal, the second sounding signal, and the moving distance.

Abstract: An apparatus and a method for mapping data and de-mapping data are provided. In the method, each modulated datum is mapped into two centrosymmetric Orthogonal Frequency Division Multiplexing (OFDM) subcarriers at the transmitting end, a certain functional transformation is performed on data in one of the two OFDM subcarriers, and original data may be restored at the receiving end according to data of the two centrosymmetric OFDM subcarriers. Exemplary embodiments of the invention also provide a transmitting device and a receiving device. By adopting embodiments of the invention, self-cancellation of interference among subcarriers may be implemented effectively, and the interference among subcarriers may be reduced.

Abstract: The method for multiple TDD systems coexistence comprising steps of: a newly deployed system calculating a relative time offset ?t for a corresponding frame; the newly deployed system transmitting uplink and downlink signals based on a time reference information obtained by a summation of the relative time offset ?t and a time reference of an existing system. With the method proposed in present invention, uplink and downlink interference from adjacent frequency bands and from adjacent carriers in the same frequency band can be greatly reduced and a transmission time utility can be guaranteed for a newly deployed system.