Inventor
TSUNEHARA KATSUHIKO
JP38 patents
⚠️ This page may combine multiple inventors who share the name “TSUNEHARA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
29 patentsUS6484034B1Nov 19, 2002
Radio handset and position location system
HITACHI LTD106 citations98
US6307844B1Oct 23, 2001
CDMA communication system and its transmission power control method
HITACHI LTD90 citations98
US6928292B2Aug 9, 2005
Mobile handset with position calculation function
HITACHI LTD57 citations96
US6900753B2May 31, 2005
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
HITACHI LTD57 citations96
US6483816B2Nov 19, 2002
CDMA communication system and its transmission power control method
HITACHI LTD61 citations96
US6459402B1Oct 1, 2002
Method for measuring distance and position using spectrum signal, and an equipment using the method
HITACHI LTD66 citations96
US6694142B1Feb 17, 2004
Wireless terminal positioning method and apparatus
HITACHI LTD70 citations95
US6990351B2Jan 24, 2006
Equipment for the calculation of mobile handset position
HITACHI LTD31 citations93
US6657579B2Dec 2, 2003
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
HITACHI LTD17 citations93
US7167712B2Jan 23, 2007
Method, system, and apparatus for detecting a position of a terminal in a network
HITACHI LTD39 citations92
US7116992B1Oct 3, 2006
Mobile station using positional information
HITACHI LTD24 citations92
US7346330B2Mar 18, 2008
Software-defined radio apparatus
HITACHI LTD15 citations84
US7236879B2Jun 26, 2007
Method for calculating the position of a mobile terminal, positioning system, and position calculation apparatus
HITACHI LTD18 citations84
US6950661B2Sep 27, 2005
Location detection method, location detection apparatus and location detection program
HITACHI LTD16 citations84
US7609197B2Oct 27, 2009
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
HITACHI LTD4 citations74
US7403580B2Jul 22, 2008
Software defined radio system
HITACHI LTD8 citations74
US7016653B2Mar 21, 2006
Radio terminal
HITACHI LTD9 citations74
US6907260B1Jun 14, 2005
Method for controlling transmit power for communication system
HITACHI LTD11 citations74
US6640107B1Oct 28, 2003
Wireless location handset apparatus
HITACHI LTD8 citations74
US7756489B2Jul 13, 2010
Software defined radio and library configuration therefor
HITACHI LTD2 citations63
US7663532B2Feb 16, 2010
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
HITACHI LTD1 citations63
US7353032B2Apr 1, 2008
Method, system, and apparatus for detecting a position of a terminal in a network
HITACHI LTD5 citations63
US7272418B2Sep 18, 2007
Base station and wireless communication system
HITACHI LTD3 citations63
US7072673B2Jul 4, 2006
Radio handset and position location system
HITACHI LTD4 citations63
US7006463B2Feb 28, 2006
CDMA communication system and its transmission power control method
HITACHI LTD1 citations63
US7266098B2Sep 4, 2007
Wireless position measurement method and wireless position measurement system
HITACHI LTD3 citations61
US7969347B2Jun 28, 2011
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
HITACHI LTD0 citations52
US11823111B2Nov 21, 2023
Work instruction system and work instruction method
HITACHI LTD0 citations51
US7280521B2Oct 9, 2007
Access point apparatus for a system for determining the location of a terminal and a terminal location determining method
HITACHI LTD0 citations42
TSUNEHARA KATSUHIKO
3 patentsUS8165620B2Apr 24, 2012
Radio communication apparatus with a bus dedicated to data transmission
TSUNEHARA KATSUHIKO1 citations49
US8451774B2May 28, 2013
Communication system and gateway apparatus
TSUNEHARA KATSUHIKO0 citations39
US8413030B2Apr 2, 2013
Wireless communication system, receiver and signal processing method for received signal
TSUNEHARA KATSUHIKO0 citations37