Remote key fob for motor vehicles
First Claim
1. A remote key fob for a vehicle, comprisinga communications and control device that includes at least one transmit/receive device,a microcontroller,a housing, arranged on the outer shell of which is a control surface that is coupled to the communications and control device for detecting operations of the control surface,a printed circuit board accommodated in the housing and placed beneath the control surface and on which the microcontroller is placed,wherein the control surface is mechanically coupled to a metal detection section such that a pressure actuation of the control surface from the outside results in a deformation or change of position of the metal detection section,wherein the printed circuit board located beneath the control surface and the metal detection section includes a detection coil, wherein the detection coil is coupled to the communications and control device for forming an inductive proximity switch,wherein the communications and control device determines a measure for the inductivity or quality of the detection coil and detects an actuation of the control surface as a function of the measure for the inductivity or quality of the detection coil.
1 Assignment
0 Petitions
Accused Products
Abstract
A remote key fob for a vehicle, includes a communications and control device, at least one transmit/receive device and a microcontroller. At least one control surface is arranged on an outer shell of a housing of the remote key fob and is coupled to the communications and control device. A printed circuit board held in the housing is placed beneath the control surface. The control surface is mechanically coupled to a metal detection section. Pressure actuation of the control surface from the outside results in a deformation or change of position of the detection section. A detection coil is located on the printed circuit board, wherein the detection coil is coupled to the communications and control device for forming an inductive proximity switch. The communications and control device determines an actuation of the control surface as a function of the inductivity or quality of the detection coil.
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Citations
8 Claims
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1. A remote key fob for a vehicle, comprising
a communications and control device that includes at least one transmit/receive device, a microcontroller, a housing, arranged on the outer shell of which is a control surface that is coupled to the communications and control device for detecting operations of the control surface, a printed circuit board accommodated in the housing and placed beneath the control surface and on which the microcontroller is placed, wherein the control surface is mechanically coupled to a metal detection section such that a pressure actuation of the control surface from the outside results in a deformation or change of position of the metal detection section, wherein the printed circuit board located beneath the control surface and the metal detection section includes a detection coil, wherein the detection coil is coupled to the communications and control device for forming an inductive proximity switch, wherein the communications and control device determines a measure for the inductivity or quality of the detection coil and detects an actuation of the control surface as a function of the measure for the inductivity or quality of the detection coil.
Specification