Identifying contacts on a touch surface

  • US 7,619,618 B2
  • Filed: 07/03/2006
  • Issued: 11/17/2009
  • Est. Priority Date: 01/26/1998
  • Status: Expired due to Term
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First Claim
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1. A method comprising:

  • obtaining a set of contacts detected on or near a sensing surface;

    generating a plurality of partitions, each partition representing an assignment of the contacts to a plurality of groups, wherein each group corresponds to a plurality of touch devices;

    determining, for each partition, a fit of the assignment of the contacts to one or more constraints of the plurality of touch devices of each group; and

    assigning the contacts to the groups according to the partition with the best fit.

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