A mobile terminal 100 includes a position information detection part 8 that detects current position information, a position information decoder part 9 that calculates the current position information as latitude/longitude information, and a position accuracy degradation-producing part 10 that degrades...http://www.google.com.hk/patents/US7570960?utm_source=gb-gplus-share專利 US7570960 - Mobile terminal, position search system, position search method, and program therefor
