09065447 is referenced by 157 patents and cites 509 patents.

A proximity switch assembly and method for detecting activation of the proximity switch assembly is provided. The assembly includes a plurality of proximity switches each providing a sense activation field and control circuitry processing the activation field of each proximity switch to sense activation. The control circuitry monitors the signal responsive to the activation field, determines a rate of change in signal amplitude for each signal, and generates an adaptive time delay based on the control circuitry. The control circuitry further detects a peak amplitude of the signal and determines activation of the switch after expiration of the time delay following the peak amplitude detection.

Title
Proximity switch assembly and method having adaptive time delay
Application Number
13/444365
Publication Number
9065447 (B2)
Application Date
April 11, 2012
Publication Date
June 23, 2015
Inventor
James Stewart Rankin
Novi
MI, US
Thomas Lee Goodson
Battle Creek
MI, US
Cornel Lewis Gardner
Romulus
MI, US
Stuart C Salter
White Lake
MI, US
Pietro Buttolo
Dearborn Heights
MI, US
Agent
Price Heneveld
Vichit Chea
Assignee
Ford Global Technologies
MI, US
IPC
H03K 17/94
H03K 17/955
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