Patents by Inventor Lansing D. Pickup
Lansing D. Pickup has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10970448Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.Type: GrantFiled: July 18, 2019Date of Patent: April 6, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Brian M. Dreibelbis, John P. Dubuque, Eric A. Foreman, Jeffrey G. Hemmett, Lansing D. Pickup, Natesan Venkateswaran, Chandramouli Visweswariah, Vladimir Zolotov
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Patent number: 10788877Abstract: Embodiments of the disclosure provide a low power multiplexer (MUX) circuit, including: a first data input coupled to an input of a first pass gate device; a second data input coupled to an input of a second pass gate device; a hold latch having an input coupled to a data output of the MUX circuit and an output coupled to an input of a supplemental pass gate device; and a pulse generator for generating a HOLD pulse signal, wherein the HOLD pulse signal is coupled to a control input of the supplemental pass gate device. The hold latch is configured to hold a previously valid output data signal of the MUX circuit until a valid input data signal is available at the first data input or the second data input.Type: GrantFiled: February 11, 2020Date of Patent: September 29, 2020Assignee: GLOBALFOUNDRIES INC.Inventors: Sebastian T. Ventrone, Lansing D. Pickup
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Publication number: 20190340323Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.Type: ApplicationFiled: July 18, 2019Publication date: November 7, 2019Inventors: Brian M. DREIBELBIS, John P. DUBUQUE, Eric A. FOREMAN, Jeffrey G. HEMMETT, Lansing D. PICKUP, Natesan VENKATESWARAN, Chandramouli VISWESWARIAH, Vladimir ZOLOTOV
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Patent number: 10394982Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.Type: GrantFiled: February 26, 2014Date of Patent: August 27, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Brian M. Dreibelbis, John P. Dubuque, Eric A. Foreman, Jeffrey G. Hemmett, Lansing D. Pickup, Natesan Venkateswaran, Chandramouli Visweswariah, Vladimir Zolotov
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Publication number: 20150242554Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.Type: ApplicationFiled: February 26, 2014Publication date: August 27, 2015Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Brian M. DREIBELBIS, John P. DUBUQUE, Eric A. FOREMAN, Jeffrey G. HEMMETT, Lansing D. PICKUP, Natesan VENKATESWARAN, Chandramouli VISWESWARIAH, Vladimir ZOLOTOV
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Patent number: 8381161Abstract: A computer-implemented method identifies at least one proprietary geometric figure from a plurality of geometric figures within a design data layout format file. The proprietary geometric figure in the design data layout format file may be replaced with a placeholder geometric figure. Cell names and connection names associated with the proprietary geometric figure are renamed from a netlist file that defines electrical connections between the geometric figures with obfuscating names. A modified design data layout format file may be generated that includes the placeholder geometric figure and a modified netlist file including the obfuscating names. The modified file enables IC designers to complete their design and checking activities, but inhibits reverse-engineering of the proprietary geometric & netlist data.Type: GrantFiled: November 4, 2011Date of Patent: February 19, 2013Assignee: International Business Machines CorporationInventors: William R. Andersen, Oded Katz, Rina Kipnis, Lansing D. Pickup, Christopher B. Reynolds, Joseph H. Underwood
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Patent number: 7966589Abstract: The invention comprises a design structure for a dynamic voltage state-saving latch electrical circuit comprising a charge device adapted as a storage element, an integrated recovery mechanism, a supply voltage rail connected to the charge device, a hold signal allocated to the integrated recovery mechanism, a data signal input allocated to said charge device, a data signal output distributed from the charge device, and a clock signal allotted to the charge device, wherein said integrated recovery mechanism maintains a state of the charge device independent of the charge device.Type: GrantFiled: April 8, 2008Date of Patent: June 21, 2011Assignee: International Business Machines CorporationInventors: Pascal A. Nsame, Anthony J. Perri, Lansing D. Pickup, Sebastian T. Ventrone, Matthew R. Welland
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Publication number: 20080186069Abstract: The invention comprises a design structure for a dynamic voltage state-saving latch electrical circuit comprising a charge device adapted as a storage element, an integrated recovery mechanism, a supply voltage rail connected to the charge device, a hold signal allocated to the integrated recovery mechanism, a data signal input allocated to said charge device, a data signal output distributed from the charge device, and a clock signal allotted to the charge device, wherein said integrated recovery mechanism maintains a state of the charge device independent of the charge device.Type: ApplicationFiled: April 8, 2008Publication date: August 7, 2008Applicant: International Business Machines CorporationInventors: Pascal A. Nsame, Anthony J. Perri, Lansing D. Pickup, Sebastian T. Ventrone, Matthew R. Welland