Touch switch with integral control circuit
First Claim
1. A panel comprising a plurality of electronic sensor apparatus, each of said sensor apparatus comprising:
- a touch pad comprising at least a first electrode; and
a control circuit disposed on an integrated circuit, said control circuit comprising;
a signal source;
an input section comprising a first input channel and a second input channel;
a decision section having a first input, a second input, and an output; and
an output section;
wherein signal source is coupled to said touch pad;
wherein said first input channel is coupled to said signal source, said first electrode and said first input of said decision section;
wherein said second input channel is coupled to said signal source and said second input of said decision section; and
wherein said output of said decision section is coupled to said output section.
1 Assignment
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Accused Products
Abstract
A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad and a local control circuit connected to the touch pad and to a controlled device. The touch pad preferable includes a first electrode and a second electrode spaced from and surrounding the first electrode. The control circuit is preferably in integrated circuit form. A signal is provided to the touch pad to generate an electric field thereabout. Introduction of a stimulus near the touch pad disturbs the electric field. The control circuit detects the electric field disturbance in and generates a control signal in response.
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Citations
16 Claims
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1. A panel comprising a plurality of electronic sensor apparatus, each of said sensor apparatus comprising:
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a touch pad comprising at least a first electrode; and
a control circuit disposed on an integrated circuit, said control circuit comprising;
a signal source;
an input section comprising a first input channel and a second input channel;
a decision section having a first input, a second input, and an output; and
an output section;
wherein signal source is coupled to said touch pad;
wherein said first input channel is coupled to said signal source, said first electrode and said first input of said decision section;
wherein said second input channel is coupled to said signal source and said second input of said decision section; and
wherein said output of said decision section is coupled to said output section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification