Source: http://www.google.com/patents/US6838905?dq=5,838,906
Timestamp: 2013-12-12 04:42:52
Document Index: 572924515

Matched Legal Cases: ['application No. 10', 'application No. 10', 'application No. 10', 'application No. 10', 'application No. 10', 'application No. 10', 'application No. 10', 'application No. 10']

Patent US6838905 - Level translator for high voltage digital CMOS process - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Sign inAdvanced Patent SearchPatentsThe speed of a level shifter is increased by utilizing an additional transistor to pull down the voltage on a first intermediate node, and an additional transistor to pull down the voltage on a second intermediate node. In addition, a precharge circuit is utilized to precharge the voltage on the first...http://www.google.com/patents/US6838905?utm_source=gb-gplus-sharePatent US6838905 - Level translator for high voltage digital CMOS processPublication numberUS6838905 B1Publication typeGrantApplication numberUS 10/272,028Publication dateJan 4, 2005Filing dateOct 15, 2002Priority dateOct 15, 2002Fee statusPaidPublication number10272028, 272028, US 6838905 B1, US 6838905B1, US-B1-6838905, US6838905 B1, US6838905B1InventorsJames Thomas DoyleOriginal AssigneeNational Semiconductor CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (10), Non-Patent Citations (14), Referenced by (23), Classifications (6), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetLevel translator for high voltage digital CMOS processUS 6838905 B1Abstract The speed of a level shifter is increased by utilizing an additional transistor to pull down the voltage on a first intermediate node, and an additional transistor to pull down the voltage on a second intermediate node. In addition, a precharge circuit is utilized to precharge the voltage on the first and second intermediate nodes to further increase the speed of the level shifter.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4656373 *Nov 26, 1984Apr 7, 1987Rca CorporationHigh-speed voltage level shift circuitUS5444396 *Sep 21, 1994Aug 22, 1995Sony CorporationLevel shifting circuitUS5559464 *Jul 6, 1994Sep 24, 1996Seiko Epson CorporationSignal voltage level conversion circuit and output buffer circuitUS5559996 *Jan 11, 1994Sep 24, 1996Mitsubishi Denki Kabushiki KaishaLevel converter including wave-shaping circuit and emulator microcomputer incorporating the level converterUS5583460 *Oct 28, 1994Dec 10, 1996Mitsubishi Denki Kabushiki KaishaOutput driver circuit for restraining generation of noise and semiconductor memory device utilizing such circuitUS6097214 *May 22, 1998Aug 1, 2000Stmicroelectronics S.A.Power output stage for the control of plasma screen cellsUS6099100Apr 6, 1998Aug 8, 2000Lg Semicon Co., Ltd.CMOS digital level shift circuitUS6433582 *Feb 19, 1998Aug 13, 2002Sharp Kabushiki KaishaVoltage level shifter circuitUS20010011917Feb 8, 2001Aug 9, 2001Intel CorporationDual-level voltage shifters for low leakage powerUS20010013795Feb 7, 2001Aug 16, 2001Matsushita Electric Industrial Co., Ltd.Level shifter* Cited by examinerNon-Patent CitationsReference1Bruno Kranzen and Dragen Maksimovic, U.S. patent application No. 10/053,227, filed Jan. 19, 2002, entitled "Adaptive Voltage Scaling Clock Generator for Use in a Digital Processing Component and Method of Operating the Same".2Dragan Maksimovic and James Thomas Doyle, U.S. patent application No. 10/166,822, filed Jun. 10, 2002, entitled "Serial Digital Communication Superimposed on a Digital Signal Over a Single Wire".3Dragan Maksimovic and Sandeep Dhar, U.S. patent application No. 10/053,828, filed Jan. 19, 2002, entitled "System for Adjusting a Power Supply Lev el of a Digital Processing Component and Method of Operating the Same".4Dragan Maksimovic and Sandeep Dhar, U.S. patent application No. 10/236,482, filed Sep. 6, 2002, entitled "Meth od and System for Providing Self-Calibration for Adaptively Adjusting a Power Supply Voltage in a Digital Processing System".5Dragan Maksimovic, Bruno Kranzen, Sandeep Dhar and Ravindra Ambatipudi, U.S. patent application No. 10/053,226, filed Jan. 19, 2002, entitled "An Adaptive Voltage Scaling Digital Processing Component and Method of Operating the Same".6Dragan Maksimovic, Ravindra Ambatipudi, Sandeep Dhar and Bruno Krazen, U.S. patent application No. 10/053,228, filed Jan. 19, 2002, entitled "An Adaptive Voltage Scaling Power Supply for Use in a Digital Processing Component and Method of Operating the Same".7Intel XScale Core, Developer's Manual, Dec. 2000, [online], [retrieved on Feb. 2, 2003]. Retrieved from the Internet: <URL http://developer.intel.com/design/intelxscale/27347301.pdf>. pps. 1-1 through B-1.8James T. Doyle and Dragan Maksimovic, U.S. patent application No. 10/160,428, filed Mar. 26, 2002, entitled "Meth od and System for Minimizing Power Consumption in Mobile Devices Using Cooperative Adaptive Voltage and Threshold Scaling".9Jim Doyle and Bill Broach, Small Gains in Power Efficiency Now, Bigger Gains Tomorrow [online]. Jul. 9, 2002 [retrieved on Feb. 1, 2003]. Retrieved from the Internet: <URL: http://www.commsdesign.com/design_corner/OEG20020709S0022>. pps. 1-5.10Krisztian Flautner, Steven Reinhardt and Trevor Mudge, Automatic Performance Setting for Dynamic Voltage Scaling, Wireless Networks, vol. 8, Issue 5, Sep. 2002, pps. 507-520, and Citation, pps. 1-3, [online]. [retrieved on Feb. 2, 2003]. Retrieved from the Internet: <URL: http://portal.acm.org/citation.cfm?id=582455.582463&coll=portal&dl=ACM&idx=J804&p . . . >.11Krisztian Flautner, Steven Reinhardt, and Trevor Mudge, Automatic Performance Setting for Dynamic Voltage Scaling [online]. May 30, 2001, [retrieved on Feb. 2, 2003]. Retrieved from the Internet: <URL http://www.eecs.umich.edu/~tnm/papers/mobicom01.pdf>. pps. 1-12.12Mark F. Rives, U.S. patent application No. 10/246,971, filed Sep. 19, 2002, entitled "Power Supply System and Method that Utilizes an Open Loop Power Supply Control".13Robert W. Erickson and Dragan Maksimovic, Fundamentals of Power Electronics, Second Edition, Kluwer Academic Publishers, 2001, pp. 333.14Texas Instruments, "Synchronous-Buck PWM Controller With NMOS LDO Controller", TPS5110, SLVS025A-Apr. 2002, Revised Jun. 2002.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7151391 *May 24, 2004Dec 19, 2006Taiwan Semiconductor Manufacturing Company, Ltd.Integrated circuit for level-shifting voltage levelsUS7362137 *Jul 24, 2006Apr 22, 2008International Business Machines CorporationHigh speed voltage level shifter circuitsUS7498842Oct 16, 2007Mar 3, 2009International Business Machines CorporationHigh speed voltage level shifter circuitsUS7952389 *Aug 6, 2010May 31, 2011Renesas Electronics CorporationLevel shift circuitUS8005276Apr 4, 2008Aug 23, 2011Validity Sensors, Inc.Apparatus and method for reducing parasitic capacitive coupling and noise in fingerprint sensing circuitsUS8067961 *Dec 9, 2009Nov 29, 2011Renesas Electronics CorporationLevel conversion circuit for converting voltage amplitude of signalUS8077935Apr 22, 2005Dec 13, 2011Validity Sensors, Inc.Methods and apparatus for acquiring a swiped fingerprint imageUS8107212Apr 30, 2007Jan 31, 2012Validity Sensors, Inc.Apparatus and method for protecting fingerprint sensing circuitry from electrostatic dischargeUS8116540Apr 4, 2008Feb 14, 2012Validity Sensors, Inc.Apparatus and method for reducing noise in fingerprint sensing circuitsUS8131026Dec 14, 2007Mar 6, 2012Validity Sensors, Inc.Method and apparatus for fingerprint image reconstructionUS8165355Sep 11, 2006Apr 24, 2012Validity Sensors, Inc.Method and apparatus for fingerprint motion tracking using an in-line array for use in navigation applicationsUS8175345Apr 15, 2008May 8, 2012Validity Sensors, Inc.Unitized ergonomic two-dimensional fingerprint motion tracking device and methodUS8204281Dec 14, 2007Jun 19, 2012Validity Sensors, Inc.System and method to remove artifacts from fingerprint sensor scansUS8224044May 24, 2010Jul 17, 2012Validity Sensors, Inc.Fingerprint sensing assemblies and methods of makingUS8229184Dec 14, 2007Jul 24, 2012Validity Sensors, Inc.Method and algorithm for accurate finger motion trackingUS8276816Dec 14, 2007Oct 2, 2012Validity Sensors, Inc.Smart card system with ergonomic fingerprint sensor and method of usingUS8278946Jan 15, 2009Oct 2, 2012Validity Sensors, Inc.Apparatus and method for detecting finger activity on a fingerprint sensorUS8290150Jul 17, 2007Oct 16, 2012Validity Sensors, Inc.Method and system for electronically securing an electronic device using physically unclonable functionsUS8315444Apr 30, 2012Nov 20, 2012Validity Sensors, Inc.Unitized ergonomic two-dimensional fingerprint motion tracking device and methodUS8331096Aug 20, 2010Dec 11, 2012Validity Sensors, Inc.Fingerprint acquisition expansion card apparatusUS8358815Dec 14, 2007Jan 22, 2013Validity Sensors, Inc.Method and apparatus for two-dimensional finger motion tracking and controlUS8374407Jan 28, 2009Feb 12, 2013Validity Sensors, Inc.Live finger detectionUS8391568Nov 10, 2008Mar 5, 2013Validity Sensors, Inc.System and method for improved scanning of fingerprint edges* Cited by examinerClassifications U.S. Classification326/81, 326/68, 326/80International ClassificationH03K19/017Cooperative ClassificationH03K19/01721European ClassificationH03K19/017B2Legal EventsDateCodeEventDescriptionJun 25, 2012FPAYFee paymentYear of fee payment: 8Jul 14, 2008REMIMaintenance fee reminder mailedJul 7, 2008FPAYFee paymentYear of fee payment: 4Apr 26, 2005CCCertificate of correctionNov 20, 2002ASAssignmentOwner name: NATIONAL SEMICONDUCTOR CORPORATION, CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DOYLE, JAMES THOMAS;REEL/FRAME:013517/0405Effective date: 20021028Owner name: NATIONAL SEMICONDUCTOR CORPORATION 2900 SEMICONDUCFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DOYLE, JAMES THOMAS /AR;REEL/FRAME:013517/0405RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google