Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.

Abstract: A capacitive sensor for detecting a stimulus. The capacitive sensor includes an electrode and a processing unit electrically coupled to the electrode and configured to determine the presence of a stimulus based on the rate of change of the electrode capacitance. A substrate is positioned adjacent the electrode, wherein the stimulus corresponds to the placement of an object against the substrate. The processing unit is operative to determine a time rate of change based on successive measurements of the electrode capacitance. In addition, the processing unit is operative to determine the presence of a stimulus in response to the time rate of change being less than a reference value.

Abstract: An intelligent shelving system integrates touch sensors, displays, lighting, and other components into shelves. Touch sensors can be used as limit switches to control shelf motion, to monitor items borne on shelves, to detect spills, and to control lighting and other devices and functions. Displays can provide information relating to objects stored in the shelving system and the operation and status of the shelving system.

Abstract: A touch switch apparatus emulating a mechanical switch includes a field effect sensor and an electric field stimulator mechanically associated with the field effect sensor. A field generation signal applied to the field effect sensor causes an electric field to be generated thereabout. The electric field stimulator can be moved between first and second positions with respect to the field effect sensor. When moved into proximity with the field effect sensor, the electric field stimulator disturbs the electric field. A detection circuit coupled to the field effect sensor detects and responds to the disturbance to the electric field.

Abstract: A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad, an electric field generated about the touch pad and also having a preferably integrated and local control circuit connected to the touch pad and to a controlled device. Practical applications for touch switch apparatus, including use of touch switch apparatus in connection with other structure to emulate mechanical switches.

Abstract: An intelligent shelving system integrates touch sensors, displays, lighting, and other components into shelves. Touch sensors can be used as limit switches to control shelf motion, to monitor items borne on shelves, to detect spills, and to control lighting and other devices and functions. Displays can provide information relating to objects stored in the shelving system and the operation and status of the shelving system.

Abstract: A layer of transparent conductive material is disposed on a surface of a substrate. Further layers of conductive material are deposited on the layer of transparent conductive material or on an opposite surface of the substrate. The layers are selectively etched to yield a layout of pads for mounting electrical components and conductive traces forming an electrical circuit.

Abstract: An intelligent shelving system integrates touch sensors, displays, lighting, and other components into shelves. Touch sensors can be used as limit switches to control shelf motion, to monitor items borne on shelves, to detect spills, and to control lighting and other devices and functions. Displays can provide information relating to objects stored in the shelving system and the operation and status of the shelving system.

Abstract: A keypad includes a substrate and one or more layers of decorative material on the substrate. Transparent and/or conventional conductive materials are disposed on the decorative material. Electrical circuit components are soldered to the conductive layers.

Abstract: A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components.

Abstract: An intelligent shelving system uses touch sensors to operate power-operated, adjustable shelves. Touch sensors also are used as limit switches to control shelf motion, to monitor the encroachment of shelved items on shelves, to detect spills, and to control other related devices and functions, such as shelf lighting. Display units are provided to provide information relating to objects stored in the shelving system and to the operation of the shelving system.

Abstract: A switch panel includes one or more touch responsive switch devices and an integrated decorative fascia. Both the switch devices and decoration are applied to the same substrate, eliminating the need for a separate user interface panel. Each switch device can include one or more electrodes and a circuit for inducing an electric field about the electrode(s) and responding to disturbances to the electric field.

Abstract: A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad, an electric field generated about the touch pad and also having a preferably integrated and local control circuit connected to the touch pad and to a controlled device. The touch switch apparatus also having at least one of an input circuit portion for providing input signals to a decision circuit, swamping capacitance, active blocking devices, peak detector circuits, and a dual connection output latch circuit portion.

Abstract: A panel, such as a component carrier or substrate, is provided with one or more penetrations. A light source associated with a surface of the panel and the corresponding end of each penetration provides light to the interior of the penetration, which guides the light to the other end of the penetration and corresponding surface of the panel. The penetration can be coated with a reflective material to improve its performance as a light guide. Alternatively or additionally, the penetration can be filled with a refractive material. A diffuser can be provided to diffuse light exiting the penetration. The light sources provides light to selected penetrations on demand such that the penetrations function as displays or elements of a display.

Abstract: A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components.

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.

Abstract: A control system interface integrates an electronic switching or sensing mechanism with an existing or custom-fabricated, functional or decorative equipment panel. The electronic switching or sensing mechanism is located on the rear surface of the equipment panel and a corresponding touch surface is defined on the front surface of the equipment panel. The electronic switching or sensing mechanism is responsive to a stimulus in the proximity of the touch surface, and it provides a control signal to a control system when it senses such a stimulus.

Abstract: Touch switches are integrated with thermoformable, injection molded, and other substrates to yield integrated touch switch/control panel assemblies. The ensuant assemblies can include ridges, depressions, anchors, overlaps, rivets and bezels or other housings. They can have any combination of flat and curved surfaces. Further, such assemblies can be incorporated into components of other assemblies, such as automobiles.

Abstract: A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components.

Abstract: A touch sensor is physically integrated with a light emitting device to provide a switching device with built-in backlighting. In some embodiments, the touch sensor and the light emitting device share electrical components.