Granted Patent
Utility
US 6,112,174 · App. 08/970,109
Recognition dictionary system structure and changeover method of speech recognition system for car navigation
Inventors:
Shinji Wakisaka, Kazuyoshi Ishiwatari, Kouji Ito, Tetsuji Toge, Makoto Tanaka
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Nov 13, 1997
Inventors
Shinji Wakisaka
Kazuyoshi Ishiwatari
Kouji Ito
Tetsuji Toge
Makoto Tanaka
Assignees (at issue)
HITACHI, LTD.
Hitachi Microcomputer System Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.