US11232148B2
patent
( 57 ) Methods and apparatus for determining a unique audience exposed to media while reducing memory resources of a computing device are disclosed herein . An example appa ratus includes means for logging a plurality of impressions based on impression requests from a plurality of client devices, the plurality of impressions corresponding to media accessed at the client devices ; means for obtaining counts , the obtaining means to : obtain a count of demographic impressions logged by a database proprietor , and obtain a count of registered users of the database proprietor exposed to the media ; and means for determining a unique audience size by : multiplying a count of the plurality of impressions by a square of the count of the registered users to generate
22 claims. 168,390 characters of text.