Invention Grant
- Patent Title: Capacitive touchpad and toy incorporating the same
- Patent Title (中): 电容触摸板和玩具结合在一起
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Application No.: US12464614Application Date: 2009-05-12
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Publication No.: US08098240B2Publication Date: 2012-01-17
- Inventor: James Zielinski , Charles H. De Voe
- Applicant: James Zielinski , Charles H. De Voe
- Applicant Address: US CA El Segundo
- Assignee: Mattel, Inc.
- Current Assignee: Mattel, Inc.
- Current Assignee Address: US CA El Segundo
- Agency: Kolisch Hartwell, PC
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
Capacitive touchpad assemblies, toys including capacitive touchpad assemblies and integral card readers, and methods for detecting contact with a capacitive touch surface are provided. A capacitive touch surface may have a capacity that varies depending on whether it is being contacted by an object such as a human finger. A voltage of the capacitive touch surface may be altered during each of a predetermined number of recurring time intervals. The capacitance of the capacitive touch surface will determine the amount of time required to alter its voltage to a threshold voltage within each time interval. The sum amount of time required for the voltage of the capacitive touch surface to reach the threshold voltage in a predetermined number of time intervals may be used to determine whether the capacitive touch surface is being touched.
Public/Granted literature
- US20090318229A1 CAPACITIVE TOUCHPAD AND TOY INCORPORATING THE SAME Public/Granted day:2009-12-24
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