917 results about "Beam pattern" patented technology

A system for automatically controlling vehicle equipment includes a controller to generate control signals. The control signals are derived based on information obtained from the image sensor as well as other detected parameters pertaining to the detected light source(s), the vehicle having the inventive control system, and the ambient environment. The control circuit may simply turn certain vehicle equipment, for example exterior lights, on or off, or change the brightness, aim, focus, etc. to produce various beam patterns that maximize the illuminated area in front of the vehicle without causing excessive glare in the eyes of other drivers.

A cost effective electronically self optimizing antenna system is provided for use with each subscriber unit in both fixed and mobile wireless applications. The smart antenna consists of multiple antenna elements arranged so that individual beams independently cover sections of free space. Collectively, complete coverage of the desired free space is accomplished. The smart antenna uses a relatively narrow beam directed in the appropriate direction thereby reducing interference and improving system capacity. A controller is included which continuously monitors the signal quality and intelligently selects the optimum antenna beam pattern configuration. All telecommunication protocols, both analog and digital, can be accommodated by the controller.

Described herein are systems and methods for controlling an illumination area as a function of time, location, or position. The systems and methods may generate illumination patterns having aesthetic effects or conveying information. In one example, a device for selectively controlling a projected illumination beam pattern of visible or non-visible illumination includes a mirror for receiving and reflecting light from an illumination source, where the mirror is operable to move in an oscillating motion, and a controller for generating time varying signals for causing the illumination source to vary a characteristic of the light (e.g., color, intensity, shape, or combinations thereof) from the illumination source and produce a predetermined illumination pattern. The controller (which may include suitable logic such as software, firmware, hardware, or combinations thereof) may operate to modulate a characteristic of the illumination source over time based on the orientation of the mirror and the predetermined illumination pattern.

A vehicle includes a communication unit including an antenna array having a plurality of antenna elements for transmitting and receiving a signal and a beamformer for forming a beam pattern focused in a specific direction by adjusting a phase of the signal transmitted from the plurality of antenna elements, and a controller for controlling the communication unit to transmit a request signal of accident associated information by focusing the beam pattern onto a peripheral vehicle.

A method and point-to-point link for providing point-to-point wireless communication between a first and second node forming a link, the method including providing multiple concurrent transmission from multiple antennas in an antenna array arrangement in the first node, controlling beam patterns of the antennas to manage deployment interference, and periodically allocating 1 to 3 MIMO (Multiple In Multiple Out) streams to different antennas in said antenna arrangement.

The present invention is a method and system for supporting a beamfonming antenna system in a mobile broadband communication network with an improved beam pattern, beam sweep pattern, pilot channel design with feedback and reporting rules, and control signaling design. Specifically, the improved beam pattern includes a method of supporting wireless communications in a wireless network forming at least two spatial beams within a cell segment where the at least two spatial beams are associated with different power levels, and separately, where at least two spatial beams can be moved across the cell segment according to a unique sweep pattern. The pilot channel design improves network bandwidth performance and improve user mobility tracking. Feedback and reporting rules can be established using a particular field designator, CQI, in the preferred embodiment.

The invention is directed to a wireless network arrangement in which nodes comprise multi-faceted multi-beam antennas and in which wireless backhaul is provided using those multi-faceted multi-beam antennas. In particular, the invention is directed to a wireless communication node comprising: an antenna defining a first wireless coverage area and a second wireless coverage area. The first wireless coverage area extends in a first beam pattern and the second wireless coverage area extends in a second beam pattern and the second beam pattern comprises at least one directional beam having a direction which is variable. Associated apparatus, methods, programs, and subscriber services are also provided.

Various antenna arrangements are provided with active transmit and receive antenna elements for transmitting and receiving signals within a cellular communication system. Also presented are specific base station antenna systems and methods, and portions thereof, which improve and control specific characteristics and features of antenna systems including antenna beam patterns. In addition, method for the optimization of a cellular communications network is provided which exploits reverse-link, forward-link, and pilot signal information to optimize network operations.

A method of efficiently transmitting CoMP feedback information from an user equipment, which performs CoMP operation, in a wireless communication system to reduce inter-cell interference is disclosed. The user equipment requests a neighboring cell, which affects the user equipment through interference, to restrict use of a specific beam pattern group in a serving cell direction. In this case, whether the user equipment will request such restriction is determined based on a channel status value of the user equipment. If the user equipment determines to request such restriction, the user equipment transmits a request message to a serving base station, the request message requesting to restrict use of the specific beam pattern group. In this case, the user equipment performs scheduling and requests a specific neighboring cell to restrict use of the specific beam pattern group at a specific resource region.

A method for determining whether to reconfigure a self-organizing network (SON) comprising coverage areas each having a BTS and an antenna and mobile units operating in each coverage area. The method comprises: at each BTS, scanning an antenna beam, measuring performance data, and determining whether measured performance data indicates a network reconfiguration; if a result is negative, at a first BTS returning to the step of scanning the antenna beam; if the result is affirmative, selecting one or more of reconfiguring the SON by changing the RF output power of the first BTS, changing an antenna beam pattern of the antenna at the first BTS, changing an antenna tilt angle of the antenna at the first BTS, changing an operating frequency of the first BTS and updating a proximate cell site list of the first BTS.

A hybrid wireless network system is disclosed. The hybrid wireless network system includes an antenna array, an analog subsystem, and a digital subsystem. The antenna array at least includes two antenna elements. In the case of using multiple antenna elements to extend link range and coverage, a coarse-fine method is included for antenna elements selection. The analog subsystem calculates a difference signal and a sum signal based on the two RF signals. The analog subsystem includes step leveling devices. The digital subsystem estimates a direction-of-arrival (DOA) based on the sum signal and the difference signal. The step-leveling devices receive weights from the digital subsystem, in form of a feedback control, to apply the weights on the two RF signals respectively. The digital subsystem repetitively calculates new weights to update a beam pattern formed by the two RF signals until the DOA approaches null.

Open LED chips may be arranged directly on the surface of a replaceable lamp capsule without intervening packages that reduce overall light emission. The chips may be oriented in such a way that the lamp generates a unique “donut” shape radiation pattern, which is suitable for a flat and shallow secondary optics to collimate the light into a desired beam pattern, and to reduce the unaesthetic appearance of points of light in an onlooker's view. The LED chips are driven in such a way that one chip fails, the whole lamp fails to avoid a partially lit appearance. At the same time the heat generated by the LED chips may be conducted away by the support structure to possibly vehicle's sheet metal to enhance life of the LED chip. The standardization of this LED lamp makes this product more cost effective thus to be used in broader lighting applications.

A system and method of automatically controlling exterior vehicle lights includes an image sensor and a controller to generate control signals. The control signals are derived based on information obtained from the image sensor as well as other detected parameters pertaining to the detected light source(s), the vehicle having the inventive control system, and the ambient environment. The control circuit may simply turn certain exterior lights on or off, or change the brightness, aim, focus, etc. to produce various beam patterns that maximize the illuminated area in front of the vehicle without causing excessive glare in the eyes of other drivers.

Various embodiments described herein include lighting systems that produce an optical beam. Moreover, in various embodiments, the beam may be altered to provide, for example, a narrow beam or a wide beam. One such lighting system includes a light source, a diffusing optical element, and a projection lens. The diffusing optical element is disposed between the light source and the projection lens and can be translated to provide zoom capability.

An apparatus, method, or system of lighting units comprising a plurality of lighting elements, such as one or more LEDs, each element having an associated optic which is individually positionable. In embodiments of the present invention, one or more optics are developed using optimization techniques that allow for lighting different target areas in an effective manner by rotating or otherwise positioning the reflectors, refractive lenses, TIR lenses, or other lens types to create a composite beam. The apparatus, method, or system of lighting herein makes it possible to widely vary the types of beams from an available fixture using a small number of inventoried optics and fixtures. In some cases, by using a combination of individual beam patterns, a small set of individual optics would be sufficient to create a majority of the typical and specialized composite beams needed to meet the needs of most lighting projects and target areas.

A method and a system for simultaneously generating configurable three-dimensional (3D) sounds are provided. A 3D sound processing application (3DSPA) in operative communication with a microphone array system (MAS) is provided on a computing device. The MAS forms acoustic beam patterns and records sound tracks from the acoustic beam patterns. The 3DSPA generates a configurable sound field on a graphical user interface using recorded or pre-recorded sound tracks. The 3DSPA acquires user selections of configurable parameters associated with sound sources from the configurable sound field. The 3DSPA dynamically processes the sound tracks using the user selections to generate a configurable 3D binaural sound, surround sound, and/or stereo sound. The 3DSPA measures head related transfer functions (HRTFs) in communication with a simulator apparatus that simulates a human's upper body. The 3DSPA generates the binaural sound by processing the sound tracks with the HRTFs based on the user selections.

An integrated circuit includes a first integrated circuit die having a first circuit and a first intra-chip interface and a second integrated circuit die having a second circuit and a second intra-chip interface and a remote interface, wherein the first intra-chip interface and the second intra-chip interface electro-magnetically communicate first signals between the first circuit and the second circuit, and wherein the remote interface is coupled to engage in electromagnetic communications with a remote device. In an embodiment of the present invention, a shielding element shields the electromagnetic communications with the remote device from the electromagnetic communication of the first signals. In other embodiments, antenna beam patterns or differing polarizations are used to isolate the electromagnetic communications with the remote device from the electromagnetic communication of the first signals.

Disclosed are systems and methods which provide high bandwidth data communication with respect to a large coverage area using smart antenna and/or directional antenna techniques. Embodiments provide extended wireless local area network (WLAN) coverage areas using a directional antenna, with the cooperation of a cellular system or proprietary WLAN infrastructure to perform best antenna beam pattern estimation and signaling. Stations disposed beyond a WLAN coverage area may establish contact and exchange signaling information with an access point through a secondary control channel. Such a secondary control channel signaling may be relatively low bandwidth and may be utilized to identify the need to communicate data, to identify a “best” directional antenna beam through which to communicate data, etcetera. Payload data may then be transmitted at a high bit rate through one or more smart antenna beams targeted at the appropriate stations.

A method and an apparatus for tracking a beam in a wireless communication system are provided. In the method, a plurality of downlink reference signals are received from a base station and at least one downlink transmission beam pattern is determined. A plurality of uplink reference signals are transmitted to the base station, each includes identifier information corresponding to the determined at least one downlink transmission beam pattern. ACKnowledgement (ACK) information indicating that the base station has successfully received an identifier included in the identifier information corresponding to the determined at least one downlink transmission beam pattern from identifier information corresponding to an uplink transmission beam pattern and that the plurality of uplink reference signals from the base station is received.

A mobile broadband wireless system including at least two pairs of nodes arranged in a cluster, each pair coupled to form a link for wireless communication; each node including: an RF transceiver with associated modem; an antenna array arrangement, each antenna having a beam pattern selected to improve quality of transmission, coupled to the modem and arranged for multiple concurrent transmissions; a controller for controlling the transceiver, modem and antenna array arrangement for providing point to point communication; the controller including means for allocating MIMO streams and modulation to different antennas in the antenna array arrangement; and at least one interference mitigation mechanism implemented by the controller to minimize interference within the cluster during multiple concurrent transmissions, and a method of wireless communication.