Patent ID: 6765558
Filing Date: 2004-07-20
Classification: G06F

Abstract:
An interface circuit for a touch plane operator input device, comprising a digital signal processor that includes a data processing path along which input data from a touch plane operator input device passes while being processed by the digital signal processor, wherein the interface circuit is capable of receiving input data in a first signal format from a first type of touch plane operator input device and input data in a second signal format from a second type of touch plane operator input device, the first signal format being different from the second signal format, and the first type of touch plane operator input device being different from the second type of touch plane operator input device, wherein the interface circuit is capable of processing input data from the first and second types of touch plane operator input devices, and wherein the data path is a common data processing path that is the same for input data from the first and second types of touch plane operator input devices, wherein the first type of touch plane operator input device is an 8-wire touch plane operator input device and the second type of touch plane operator input device is one of a 4-wire touch plane operator input device and a 5-wire touch plane operator input device.