Interactive touchpad

• US 7,847,790 B2
• Filed: 08/16/2007
• Issued: 12/07/2010
• Est. Priority Date: 08/30/2006
• Status: Expired due to Fees

• Current Assignee: Core Brands, LLC (Melrose Industries Plc)
• Original Assignee: ELAN Home Systems, LLC (Melrose Industries Plc)
• Inventors: Moore, David, Shipman, Matthew, Ross, Brent, Gratz, Richard B., Bensing, James, White, Marshall, Frysinger, David, Haddix, Landrum, Tabb, Sallie, Bewley, Wilbur
• Primary Examiner(s): Mengistu; Amare
• Assistant Examiner(s): Zhou; Hong
• Application Number:
  US11/840,135
• Publication Number:
  US 20080055265A1
• Time in Patent Office: 1,209 Days
• Field of Search: 345172-175, 345/102, 345/207, 340/545.3, 174/66, 348/734, 398/132, 398/140, 398/160
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus

Abstract

A film interactive touchpad for control of home systems. A touchscreen defined by a glass panel and polyester film defines active areas responsive to contact. Multiple, customizable and interchangeable templates correspond with multiple levels of functionality and define input and control buttons corresponding to active areas of the touchpad. A display such as an organic light emitting diode (OLED) provides interactive, color feedback. The touchscreen has a hinged connection to the touchpad and is pivotable to an open position to permit insertion and removal of the overlay templates, and is surrounded by a trim ring dam to prevent moisture intrusion. A light sensor is provided for detecting the ambient light level and adjusting the intensity of a backlight for faceplates of any color.

Claims

1. An interactive touchpad comprising:

a touchscreen defining active areas responsive to contact;

an overlay template removably coupled to the touchscreen and defining input and control buttons corresponding to the active areas of the touchscreen;

a display for providing feedback in response to contact with the touchscreen; and

an IR sensor and dual function IR sensor circuit providing a normal mode that produces a high gain IR signal during a normal operation and a learning mode that produces a low gain IR signal during a learning operation,

wherein the signal received by the IR sensor during the learning mode is amplified by a first amplification stage and then passed through a high impedance buffer and a high pass filter in the dual function IR sensor circuit to provide the low gain IR signal.

2. An interactive touchpad as claimed in claim 1, and further comprising:

at least one additional overlay template removably couplable to the touchscreen and interchangeable with the overlay template removably coupled to the touchscreen.

3. An interactive touchpad as claimed in claim 2, wherein the at least one additional overlay template defines input and control buttons corresponding to the active areas of the touchscreen, wherein the input and control buttons defined by the at least one additional overlay template are different from the input and control buttons of the overlay template such that the overlay template and the at least one additional overlay template correspond to different levels of touchscreen functionality.

4. An interactive touchpad as claimed in claim 1, wherein the touchscreen is a resistive touchscreen comprising a glass panel and a polyester film.

5. An interactive touchpad as claimed in claim 1, wherein the touchscreen is a capacitive touchscreen comprising two glass panels.

6. An interactive touchpad as claimed in claim 5, and further comprising a trim ring surrounding the touchscreen, the trim ring defining a dam to prevent moisture intrusion into the space between the overlay and the touchscreen.

7. An interactive touchpad as claimed in claim 1, wherein the touchscreen has a hinged connection to the touchpad and is pivotable to an open position to permit insertion and removal of the overlay template.

8. An interactive touchpad as claimed in claim 1, wherein the display is an organic light emitting diode (OLED) having approximately 160 degrees of usable viewing angle.

9. An interactive touchpad as claimed in claim 1, wherein the display is an organic light emitting diode (OLED) having a contrast ratio of approximately 200.

10. An interactive touchpad as claimed in claim 1, wherein the touchscreen and the overlay template define a feedback area where feedback is provided by the display.

11. An interactive touchpad as claimed in claim 1, wherein the touchpad has a dimension compatible with mounting in a double gang junction box.

12. An interactive touchpad as claimed in claim 1, and further comprising:

a backlight; and

a light sensor for detecting an ambient light level and adjusting the intensity of the backlight in response, wherein the light sensor sets a maximum brightness value of the ambient room light when the light sensor is first activated and sets a minimum brightness value according to a predetermined offset value of the maximum brightness value.

13. An interactive touchpad as claimed in claim 12, and further comprising:

a faceplate surrounding the touchscreen and the display;

wherein the light sensor is provided behind a hole in the faceplate.

14. An interactive touchpad as claimed in claim 13, further comprising:

at least one additional overlay removably couplable to the touchscreen and interchangeable with the overlay removably coupled to the touchscreen.

15. An interactive touchpad as claimed in claim 1, wherein the interactive touchpad can be programmed via a remote control device during the learning mode.

16. An interactive touchpad as claimed in claim 1, wherein the IR sensor is provided behind the overlay template.

17. An interactive touchpad as claimed in claim 1, wherein the IR sensor operating in normal mode can receive a signal from up to 30 feet away from the IR sensor.