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Nintendo and Microsoft in Suit Over Controller Patents
Via Kotaku, an article at the Inquirer discussing a patent suit brought against Microsoft and Nintendo over controller technologies. Anascape Ltd, a Texas firm, claims the two companies have infringed on over a dozen of its held patents. From the article: "Anascape alleges 6,222,525 'Image Controller with Sheet Connected Sensors' was also breached, as well as 6,343, 991 'Game Control with Analog Pressure Sensor' and 6,344,791 'Variable Sensor with Tactile Feedback'. As well as 6,347,997 'Analog Controls Housed with Electronic Displays', 6,351,205 'Variable Conductance Sensor' (a different one) and 6,400, 303 'Remote Controller with Analog Pressure Sensor' (a different one)."
Wow...sucks for them. Too bad both Microsoft and Nintendo use digital controllers. Yes, there are varying values depending on the analog input (all human input is analog after all), but the output is now, always has been, and always will be, digital.
There is no way that either Microsoft or Nintendo are sending varying levels of voltages to the console when they can send a couple of digital packets that contain all the information on all the buttons in about the same amount of bandwidth (over cord or air). Technically the packets are an analog signal that is encoded to represent a digital value, but there is no "varying analog value," just a series of different combinations of the same value of high and low voltage.
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Actually the Nintendo 64 (N64) featured an analog stick, in addition to the digital pads, and the N64 was released in (drumroll please) 1996 (http://en.wikipedia.org/wiki/Nintendo_64) and it was publically introduced in 1995, so Nintendo can indeed claim prior art.