Systemand method for generating
US8380503 Патенты
Challenge items for an audible based electronic challenge system are generated using a variety oftechniques to identify optimal candidates. The challenge items are intended for use in a computing system that discriminates between humans and text to speech (TTS) system. 42 Claims, 6 Drawing Sheets
Притязаний: 13. Знаков текста: 114 867.