Assignee
HITACHI ELECTRONICS
JP159 patents
Top patents by PatentIndex Score
US6687386B1Feb 3, 2004
Object tracking method and object tracking apparatus
HITACHI ELECTRONICS194 citations99
US5203028AApr 13, 1993
Automatic adjustment radio apparatus
HITACHI ELECTRONICS242 citations99
US6754367B1Jun 22, 2004
Method and apparatus for automatically detecting intrusion object into view of image pickup device
HITACHI ELECTRONICS120 citations98
US6747694B1Jun 8, 2004
Television signal processor for generating video signal of wide dynamic range, television camera using the same, and method for television signal processing
HITACHI ELECTRONICS95 citations98
US6526215B2Feb 25, 2003
Apparatus for editing moving picture having a related information thereof, a method of the same and recording medium for storing procedures in the same method
HITACHI ELECTRONICS123 citations98
US6512798B1Jan 28, 2003
Digital communication system of orthogonal modulation type
HITACHI ELECTRONICS78 citations98
US6445409B1Sep 3, 2002
Method of distinguishing a moving object and apparatus of tracking and monitoring a moving object
HITACHI ELECTRONICS192 citations98
US6154601ANov 28, 2000
Method for editing image information with aid of computer and editing system
HITACHI ELECTRONICS261 citations98
US6983420B1Jan 3, 2006
Motion picture information displaying method and apparatus
HITACHI ELECTRONICS72 citations97
US6404455B1Jun 11, 2002
Method for tracking entering object and apparatus for tracking and monitoring entering object
HITACHI ELECTRONICS142 citations96
US6304611B1Oct 16, 2001
OFDM modulator and OFDM modulation method for digital modulated wave having guard interval
HITACHI ELECTRONICS104 citations96
US6088468AJul 11, 2000
Method and apparatus for sensing object located within visual field of imaging device
HITACHI ELECTRONICS79 citations96
US6546115B1Apr 8, 2003
Method of updating reference background image, method of detecting entering objects and system for detecting entering objects using the methods
HITACHI ELECTRONICS73 citations95
US6487360B1Nov 26, 2002
Method, apparatus, and computer program product for editing moving image and displaying selected groups of representative images of cuts of the moving image such that representative images having a predetermined feature can be distinguished from representative images not having the predetermined feature
HITACHI ELECTRONICS58 citations95
US6115037ASep 5, 2000
Motion image control method and apparatus
HITACHI ELECTRONICS80 citations95
US6108033AAug 22, 2000
Method and system monitoring video image by updating template image
HITACHI ELECTRONICS63 citations95
US5956453ASep 21, 1999
Method of editing moving image and apparatus of editing the same
HITACHI ELECTRONICS71 citations95
US4156237AMay 22, 1979
Colored display system for displaying colored planar figures
HITACHI ELECTRONICS81 citations95
US6118925ASep 12, 2000
Method of and system for confirming program materials to be broadcasted and then broadcasting the program materials, and recording medium having recorded therein a procedure for implementing the method
HITACHI ELECTRONICS72 citations94
US5978651ANov 2, 1999
Method for bidirectionally transmitting digital video signal and digital video signal bidirectional transmission system
HITACHI ELECTRONICS79 citations94
US5828784AOct 27, 1998
Data coding method and apparatus using a plurality of blocks of different length
HITACHI ELECTRONICS85 citations94
US4792939ADec 20, 1988
Duplex radio communication transceiver
HITACHI ELECTRONICS92 citations94
US6693956B1Feb 17, 2004
Power amplifier having negative feedback circuit for transmitter
HITACHI ELECTRONICS21 citations93
US5926065AJul 20, 1999
Digital modulator having a digital filter including low-speed circuit components
HITACHI ELECTRONICS109 citations93
US5914592AJun 22, 1999
Sampling signal generating circuit for sampling apparatus and digital oscilloscope
HITACHI ELECTRONICS37 citations93
US5818846AOct 6, 1998
Digital signal transmission system
HITACHI ELECTRONICS25 citations93
US5579434ANov 26, 1996
Speech signal bandwidth compression and expansion apparatus, and bandwidth compressing speech signal transmission method, and reproducing method
HITACHI ELECTRONICS80 citations93
US4414575ANov 8, 1983
Autofocus system
HITACHI ELECTRONICS54 citations93
US7020116B1Mar 28, 2006
Method and apparatus of data transmission
HITACHI ELECTRONICS33 citations92
US6590871B1Jul 8, 2003
Multi-carrier modulation apparatus and transmitter using the same
HITACHI ELECTRONICS40 citations92
US6577807B1Jun 10, 2003
Editing method and apparatus for moving pictures
HITACHI ELECTRONICS44 citations92
US6459759B1Oct 1, 2002
X-ray tomography apparatus and method of taking tomographic image of object with the apparatus
HITACHI ELECTRONICS23 citations92
US6381251B1Apr 30, 2002
Data transmission apparatus and receiving apparatus using orthogonal frequency division multiplex modulation system
HITACHI ELECTRONICS51 citations92
US6346761B1Feb 12, 2002
Surface acoustic wave device capable of suppressing spurious response due to non-harmonic higher-order modes
HITACHI ELECTRONICS22 citations92
US6345390B1Feb 5, 2002
Bidirectional digital signal transmission system and repeater for the same
HITACHI ELECTRONICS27 citations92
US6272279B1Aug 7, 2001
Editing method of moving images, editing apparatus and storage medium storing its editing method program
HITACHI ELECTRONICS21 citations92
US6252898B1Jun 26, 2001
Spread spectrum communication method and system wherein data rate of data to be transmitted is changed in accordance with transmission quality
HITACHI ELECTRONICS33 citations92
US6246735B1Jun 12, 2001
Synchronization detection method for data transmission apparatus and data transmission apparatus using the same
HITACHI ELECTRONICS44 citations92
US6246732B1Jun 12, 2001
Demodulator including adaptive equalizer and demodulating method in digital communications
HITACHI ELECTRONICS54 citations92
US6201570B1Mar 13, 2001
Digital television camera apparatus provided with camera head unit and camera control unit, independently
HITACHI ELECTRONICS27 citations92
US6009305ADec 28, 1999
Digital video signal multiplex transmission system
HITACHI ELECTRONICS25 citations92
US5943374AAug 24, 1999
Out-of-synchronization recovery method and apparatus of data transmission system
HITACHI ELECTRONICS45 citations92
US5912544AJun 15, 1999
Electronic equipment and method for enabling plural types of batteries to be selectively used
HITACHI ELECTRONICS98 citations92
US5889766AMar 30, 1999
Transmission/reception method based on frequency division multiple access having changeable communication channel bandwidths and communication apparatus employing the method
HITACHI ELECTRONICS28 citations92
US5802451ASep 1, 1998
Non-linear compensation circuit for a power amplifier
HITACHI ELECTRONICS48 citations92
US5671010ASep 23, 1997
Apparatus for judging the order of arrival of racers at a goal in a race and the time taken for the race, having a plurality of line sensor cameras
HITACHI ELECTRONICS71 citations92
US5633862AMay 27, 1997
DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal
HITACHI ELECTRONICS21 citations92
US5512946AApr 30, 1996
Digital video signal processing device and TV camera device arranged to use it
HITACHI ELECTRONICS50 citations92
US6611493B1Aug 26, 2003
Communication, transmission and receiving method and apparatus using orthogonal frequency division multiplexing modulation system
HITACHI ELECTRONICS27 citations91
US6466260B1Oct 15, 2002
Traffic surveillance system
HITACHI ELECTRONICS137 citations91
Showing the top 50 of 159 patents by PatentIndex Score.