Abstract

Systems and methods for sensing and tracing proximity contacts use a magnetic field detection or coupling technology where the detection range between proximate devices may be accurately determined. The detection range may be accurately determined, for example, by generating and detecting a defined magnetic field range and/or by measurement of the received magnetic field strength and direction within an undefined magnetic field range. Proximity sensing devices perform a proximity magnetic field detection when located within a defined, generated magnetic field during a proximity contact interaction with another device that is generating a magnetic field. The magnetic fields generated and detected are generated to behave as quasistatic fields, in contrast to radios that generate and detect radiated, dynamic, electro-magnetic fields.

IPC Classes  ?

• H04W 4/02 - Services making use of location information
• G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
• G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
• H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
• H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
• H04B 5/24 - Inductive coupling
• H04B 5/48 - Transceivers
• H04B 5/73 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for taking measurements, e.g. using sensing coils
• H04W 4/029 - Location-based management or tracking services
• H04W 76/10 - Connection setup

Abstract

Devices, systems and methods for magnetic field coupling, as described herein, optimize magnetic coupling between transducers generating and detecting quasistatic magnetic fields by translating the generated and detected magnetic fields into a common frame of reference, such as the Earth's gravitational field. In general, a receiving device has knowledge of the strength and direction of a quasistatic magnetic field generated by a transmitting device, which allows the generated magnetic field to be measured and interpreted by the receiving device in the context of the common frame of reference. Such devices, systems, and methods may use magnetic coupling, for example, for proximity detection and/or for communication between devices. Magnetic coupling may be used for proximity detection, for example, by detecting a magnetic field having a defined magnetic field range and/or by measuring magnetic field strength and/or direction and determining distance and/or location.

IPC Classes  ?

• H04B 5/73 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for taking measurements, e.g. using sensing coils
• G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
• G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
• H04B 5/24 - Inductive coupling
• H04B 5/48 - Transceivers
• H04W 76/10 - Connection setup

Abstract

Devices, systems and methods for magnetic field coupling, as described herein, optimize magnetic coupling between transducers generating and detecting quasistatic magnetic fields by translating the generated and detected magnetic fields into a common frame of reference, such as the Earth's gravitational field. In general, a receiving device has knowledge of the strength and direction of a quasistatic magnetic field generated by a transmitting device, which allows the generated magnetic field to be measured and interpreted by the receiving device in the context of the common frame of reference. Such devices, systems, and methods may use magnetic coupling, for example, for proximity detection and/or for communication between devices. Magnetic coupling may be used for proximity detection, for example, by detecting a magnetic field having a defined magnetic field range and/or by measuring magnetic field strength and/or direction and determining distance and/or location.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
• H04B 5/02 - Near-field transmission systems, e.g. inductive loop type using transceiver
• B60K 1/00 - Arrangement or mounting of electrical propulsion units
• B60K 6/00 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines

Goods & Services

Electrical engineering services in the field of product development