US Patent No: 6,169,442

Number of patents in Portfolio can not be more than 2000

IC monitoring chip and a method for monitoring temperature of a component in a computer

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

An IC monitoring chip (10) for remotely monitoring the output of a thermal diode (5) formed in the substrate of a CPU (2) for monitoring the temperature of a thermal plate (3) of the CPU (2) comprises a signal conditioning circuit (12) which relays the output from the diode (5) to an analog-to-digital converter (14), which in turns outputs a two's compliment signal to an adder (22). The adder (22) adds the two's compliment signal to a temperature offset value stored in a temperature offset register (17), which compensates for the temperature difference between the diode (5) and the thermal plate (3). Comparators (24) and (25) compare the output from the adder (22) with upper and lower predetermined temperature limits in upper and lower limit registers (19) and (20) for determining the temperature of the thermal plate (3). The temperature offset value is stored in ROM (35) of the computer (1) and is written to the register (17) each time the computer (1) is powered up. The IC chip (10) operates independently of the CPU (2).

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
ANALOG DEVICES, INC.NORWOOD, MA2158

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blake, John Limerick, IE 21 449
Meehan, Patrick Pallaskenry, IE 3 121
Thomson, David Ridgefield, CT 38 364

Cited Art

Patent Info (Count) # Cites Year
 
INTEL CORPORATION (1)
6,055,489 Temperature measurement and compensation scheme 27 1997
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,639,163 On-chip temperature sensing system 40 1994
 
SPECTRIAN, INC. (1)
5,710,519 Circuit for automatically biasing RF power transistor by use of on-chip temperature-sensing transistor 21 1996

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
INTEL CORPORATION (6)
7,051,137 Event delivery 8 2002
6,974,252 Failsafe mechanism for preventing an integrated circuit from overheating 5 2003
7,508,671 Computer system having controlled cooling 3 2003
7,457,969 Computer system monitoring 1 2005
7,296,928 Failsafe mechanism for preventing an integrated circuit from overheating 4 2005
7,690,843 Failsafe mechanism for preventing an integrated circuit from overheating 2 2007
 
STANDARD MICROSYSTEMS CORPORATION (5)
7,281,846 Integrated resistance cancellation in temperature measurement systems 39 2004
7,140,767 Programmable ideality factor compensation in temperature sensors 3 2004
7,429,129 Proportional settling time adjustment for diode voltage and temperature measurements dependent on forced level current 11 2005
7,622,903 EMI rejection for temperature sensing diodes 0 2005
7,193,543 Conversion clock randomization for EMI immunity in temperature sensors 10 2005
 
TEXAS INSTRUMENTS INCORPORATED (4)
7,083,328 Remote diode temperature sense method with parasitic resistance cancellation 10 2004
7,637,658 Systems and methods for PWM clocking in a temperature measurement circuit 2 2007
7,524,109 Systems and methods for resistance compensation in a temperature measurement circuit 1 2007
7,504,977 Hybrid delta-sigma/SAR analog to digital converter and methods for using such 8 2007
 
ANALOG DEVICES, INC. (2)
6,991,369 Method and circuit for the provision of accurately scaled currents 4 2003
7,151,349 Fan speed control 8 2004
 
BROADCOM CORPORATION (2)
7,449,908 Process monitor for monitoring an integrated circuit chip 1 2003
7,843,205 Process monitor for monitoring an integrated circuit chip 0 2008
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
6,308,289 Method and system for environmental sensing and control within a computer system 14 1998
7,044,633 Method to calibrate a chip with multiple temperature sensitive ring oscillators by calibrating only TSRO 5 2003
 
NATIONAL SEMICONDUCTOR CORPORATION (2)
6,637,934 Constant offset buffer for reducing sampling time in a semiconductor temperature sensor 14 2002
7,309,157 Apparatus and method for calibration of a temperature sensor 11 2004
 
ATI TECHNOLOGIES ULC (1)
8,290,728 Method and apparatus for integrated circuit temperature control 0 2008
 
AU OPTRONICS CORP. (1)
8,415,990 Gate driving circuit 0 2011
 
AVAGO TECHNOLOGIES GENERAL IP PTE. LTD. (1)
7,648,270 Temperature measurement of an integrated circuit 1 2004
 
CANON KABUSHIKI KAISHA (1)
6,831,554 Abnormality detection method and protection apparatus 1 2002
 
DENSO CORPORATION (1)
7,237,099 Multiprocessor system having a plurality of control programs stored in a continuous range of addresses of a common memory and having identification registers each corresponding to a processor and containing data used in deriving a starting address of a CPU-linked interrupt handler program to be executed by the corresponding processor 1 2002
 
DOLPAN AUDIO, LLC (1)
7,857,510 Temperature sensing circuit 4 2003
 
FIREHOSE, LLC (1)
7,461,974 Beta variation cancellation in temperature sensors 0 2008
 
GLOBAL MIXED-MODE TECHNOLOGY INC. (1)
7,341,374 Temperature measurement circuit calibrated through shifting a conversion reference level 11 2005
 
NANYA TECHNOLOGY CORPORATION (1)
8,096,706 Temperature detector and the method using the same 1 2008
 
NXP B.V. (1)
8,310,265 IC testing methods and apparatus 0 2008
 
QUALCOMM INCORPORATED (1)
8,354,875 Low voltage temperature sensor and use thereof for autonomous multiprobe measurement device 0 2010
 
RENESAS ELECTRONICS CORPORATION (1)
8,040,176 Internal voltage generating circuit 0 2009
 
RENESAS TECHNOLOGY CORP. (1)
7,093,975 Semiconductor integrated circuit with simply configured temperature detection circuit 2 2003
 
SAMSUNG ELECTRONICS CO., LTD. (1)
7,549,796 Digital temperature detection circuit adapted for use with semiconductor device 1 2007
 
SBS TECHNOLOGIES, INC. (1)
6,491,426 Thermal bond verification 15 2001
 
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC (1)
7,483,270 Fan speed control system 8 2002
 
SILICON LABORATORIES INC. (1)
7,606,626 Speaking thermometer 0 2004
 
STMICROELECTRONICS S.A. (1)
6,997,606 Threshold temperature sensor comprising room temperature test means 3 2002
 
VENTANA MEDICAL SYSTEMS, INC. (1)
6,403,931 Slide heater calibrator and temperature converter apparatus and method 34 1999