Granted Patent
Utility
US 6,731,347 · App. 09/540,150
Method for switching signal input based on device capability
Inventors:
Hiroshi Takano, Satoshi Kobayashi, Kazuhiro Suzuki, Makoto Sato, Yuji Kimura
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Mar 31, 2000
Inventors
Hiroshi Takano
Satoshi Kobayashi
Kazuhiro Suzuki
Makoto Sato
Yuji Kimura
Assignees (at issue)
SONY GROUP CORPORATION
SONY ELECTRONICS INC.
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.