Abstract:
Mobile devices are handled in different environments which influence an antenna's performance due to electromagnetic interaction. Environment Property based Antenna Radiation Pattern Optimizing System (EPARPOS) is a system that actively varies, controls, directs, shapes and optimizes the antenna radiation pattern of mobile device in a closed loop manner controlled by precisely sensing the environment's property comprising dielectric nature, permittivity-∈, permeability-μ, conductivity-σ, susceptibility, direction, dimension, range, orientation, position, location, utilizing visual sensing, infrared sensing and signal quality parameters are all to determine the effect of the environment and effect on environment in order to enhance signal quality, protect the users by controlling radiation exposure in a user facing direction while maintaining radiations in other directions to sustain communication and to save battery power by controlling radiation in less effective directions. The system is utilized for guiding the user to locate and position the mobile device in a living space to achieve optimized performance.
Abstract:
Ambient intelligence and spatial—computing, filtering & processing based closed loop wireless energy transfer/receive system is a highly flexible design and technique with precise knowledge of environmental users and object to exactly transfer power to scavenging device photo voltaic cell from power source utilising active and adaptive self steering multilevel multicast coherent energy power streams works based on (i) either one or both or network of ambient intelligent systems in environment, power sources and scavenging devices active and precisely sensing & tracking movement, status or change in status of environment & environmental users and objects in real time with its relative direction, dimension, nature, multilayers, range or distance, orientation, position or location, presence and movement of users and objects particularly in Line of Sight [LOS] between power source and scavenging devices thereby correlating with respect to coherent energy power source and power scavenging device; (ii) constant & precisely sensing, tracking and correlating the position, altitude, location, direction, range, orientation, dimension, device type, status of power requirement, status & efficiency of power transfer, state of polarisation, usage and operating modes between and with respect to power scavenging devices photovoltaic cell and coherent energy power source; (iii) actively sensing power sources & scavenging devices proximity environments—nature or property, direction, range and dimension; thereby the ambient intelligent system, power sources and scavenging devices actively communicates with each other to share its status, parameters and interoperate with adaptive closed loop processing algorithm to actively track, compute—power transfer level, polarisation, direction & shaping of beam width, position to self steering & optimising the coherent power streams in 3 dimensional space ultimately to direct coherent energy source [E.g. Light or LASER] with signal processing algorithm ultimately to protects users & other objects by controlling primary & secondary radiation exposure on user, optimise power transfer, precisely transfer power to required devices with right power, adopt the power transfer according to change in environment to continuously transfer power, reduce unnecessary interference, reduce electromagnetic pollution and to save power. Both the power source and scavenging devices comprises of sensor system, communication system, transceiver circuitry, antenna system, processing unit, power transmitter components with source, power receiving components with scavenging devices and power source connected to external power supply. System utilise either single power source or network of power source, In case of network or multiple power source the present system actively interoperates between each other to transfer power to scavenging devices precisely and efficiently.
Abstract:
Contextually Networked Autonomous Self-Steering Laser Beam is a technique to transfer wireless energy through an ambient intelligence based environment-safe interference-free network of actively self-steering laser beams. CNSLB comprises of (i) a network of sensors in power source, power-scavenging devices and environment to sense/track the real-time change in environmental objects and users with relative distance, orientation and position between the Line of Sight of power source and scavenging device, (ii) a network of power source with laser beam generating and self-steering mechanism, (iii) a photo voltaic cell integrated in scavenger to receive power, (iV) a processing unit on power source, scavenging device and environment that computes the laser beam's steering angle, intensity, selects right power source based on environmental condition and photovoltaic cell on power scavenging device's location, position and orientation (v) a communication system for sharing information (vi) may utilize a passive power source like reflectors to relay the power from power source to scavenging device.
Abstract:
The smart directional radiation protection system is a design and technique for actively varying, controlling and reducing the intensity of radiation 180 on user 170 facing direction for portable wireless mobile devices like mobile cell phone 100 utilising RF system with tunable metamaterial or tunable EBG antenna system to reduce SAR are disclosed. The system controls the radiation by smart and active dynamic radiation pattern approach to protect the user from radiation. The smart directional radiation protection system consist of (a) a sensor system 130 to determine the change in usage mode, device orientation and proximity of wireless device to user and accordingly generate the trigger signal 230; (b) a processing unit for manipulation of interrupt control signal 140 according to trigger signal and signal quality parameters; (c) An active directional transmit power or radiation controller 120 that works based on control signal; (d) Tunable metamaterial or tunable EBG antenna system 110 coupled with directional transmit power controller 120 that controls the radiation on user 170 facing direction and also restores radiation according to parameters and configuration to reduce SAR and optimise communication.