US Patent No: 5,895,440

Number of patents in Portfolio can not be more than 2000

Battery monitor and cycle status indicator

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A battery monitor and cycle status indicator is disclosed. The battery monitor includes a voltage sensor capable of sensing the voltage between two nodes, for example, the positive and negative terminals of a battery. The voltage sensor is connected to an analog-to-digital converter which converts the analog voltage level sensed by the voltage sensor to a digital form. In turn, the analog-to-digital converter is coupled to a microprocessor. The microprocessor determines battery state-of-charge and historical values that relate to battery condition based upon the voltage levels provided by the analog-to-digital converter. The microprocessor is also coupled to a memory which stores battery history values computed by the microprocessor and program instructions for operation of the microprocessor. The battery monitor also includes a display that is capable of displaying battery state-of-charge and the historical values determined by the microprocessor. A switch is coupled to the microprocessor to inform the microprocessor to clear the history values presently stored in memory or to scroll the display from one battery parameter or history value to the next. The switch also enables the adjustment of the battery parameters that are stored in the memory to user-defined levels.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
XANTREX TECHNOLOGY INC.LIVERMORE, CA79
CRUISING EQUIPMENT, INC.SEATTLE, WA7

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kahle, Steven H Edmonds, WA 10 383
Merkes, William L Seattle, WA 4 209
Proctor, Richard L Seattle, WA 14 378
Ure, George A Kirkland, WA 4 209
Young, Jr Richard H Seattle, WA 6 351

Cited Art

Patent Info (Count) # Cites Year
 
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (6)
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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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6,759,849 Battery tester configured to receive a removable digital module 45 2002
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7,319,304 Shunt connection to a PCB of an energy management system employed in an automotive vehicle 11 2004
7,003,411 Electronic battery tester with network communication 44 2004
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7,425,833 Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries 8 2006
7,642,787 Automotive vehicle electrical system diagnostic device 9 2006
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8,344,685 System for automatically gathering battery information 0 2009
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JOAO CONTROL &MONITORING SYSTEMS, LLC (5)
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LENOVO (SINGAPORE) PTE LTD. (4)
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GRIDPOINT, INC. (3)
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INTERSTATE BATTERY SYSTEM OF AMERICA, INC. (3)
6,930,485 Electronic battery tester with battery failure temperature determination 34 2003
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ASSOCIATED EQUIPMENT CORPORATION (2)
6,586,913 Automatic battery charger with voltage controlled charging and ripple voltage test 5 2001
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EVEREADY BATTERY COMPANY, INC. (2)
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HUANG, YUNG-SUNG (2)
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MATTEL, INC. (2)
7,513,324 Children's ride-on vehicles having battery charge indicator assemblies 4 2005
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6,300,743 Single wire radio to charger communications method 4 2000
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POWER DESIGNERS USA LLC (2)
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AEROVIRONMENT, INC. (1)
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CUMMINS POWER GENERATION, INC. (1)
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MIDRONICS, INC. (1)
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NOKIA MOBILE PHONES LTD. (1)
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OSHKOSH CORPORATION (1)
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QUANTA COMPUTER INC. (1)
7,434,071 Multi-state recognition device of server blade system 0 2005
 
SAMSUNG SDI CO., LTD. (1)
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SONY CORPORATION (1)
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VENA ENGINEERING CORP (1)
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VODAFONE GROUP PLC (1)
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (10)
6,294,897 Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery 182 2000
6,294,896 Method and apparatus for measuring complex self-immitance of a general electrical element 108 2000
6,417,669 Suppressing interference in AC measurements of cells, batteries and other electrical elements 94 2001
6,495,990 Method and apparatus for evaluating stored charge in an electrochemical cell or battery 94 2001
6,466,026 Programmable current exciter for measuring AC immittance of cells and batteries 90 2001
6,737,831 Method and apparatus using a circuit model to evaluate cell/battery parameters 52 2002
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6,806,716 Electronic battery tester 44 2004
7,928,735 Battery performance monitor 8 2008
8,442,877 Simplification of inventory management 0 2009