Patents by Inventor Samantak CHAKRABARTI
Samantak CHAKRABARTI 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: 9547735Abstract: A configurable module editor and viewer (CMVE) reads the RTL description of a configurable module keeping track of all possible configuration options. Configuration options include pre-processor macros that are normally removed by RTL parsers. The CMVE allows users to view multiple configurations simultaneously. The CMVE assists users in editing the configurable module by presenting a simplified view of interest, while automatically propagating changes and maintaining consistency in the configurable module. The CMVE outputs updated RTL that maintains all configuration options.Type: GrantFiled: June 22, 2015Date of Patent: January 17, 2017Assignee: Synopsys, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Nilam Sachan, Nitin Bhardwaj, Brijesh Agrawal, Nishant Sharma
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Publication number: 20150379176Abstract: A configurable module editor and viewer (CMVE) reads the RTL description of a configurable module keeping track of all possible configuration options. Configuration options include pre-processor macros that are normally removed by RTL parsers. The CMVE allows users to view multiple configurations simultaneously. The CMVE assists users in editing the configurable module by presenting a simplified view of interest, while automatically propagating changes and maintaining consistency in the configurable module. The CMVE outputs updated RTL that maintains all configuration options.Type: ApplicationFiled: June 22, 2015Publication date: December 31, 2015Applicant: ATRENTA, INC.Inventors: Anshuman Nayak, Samantak Chakrabarti, Nilam Sachan, Nitin Bhardwaj, Brijesh Agrawal, Nishant Sharma
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Patent number: 8930863Abstract: Systems and methods are disclosed for modifying the hierarchy of a System-on-Chip and other circuit designs to provide better routing and performance as well as more effective power distribution. A user specifies desired modifications to the design hierarchy and then the system automatically alters the hierarchy by performing group, ungroup, and move operations to efficiently and optimally implement the desired hierarchy modifications. Any modifications to port and signal names are automatically resolved by the system and the resultant RTL matches the function of the input RTL. The user then evaluates the revised hierarchy with regard to power distribution and routing congestion, and further hierarchy modifications are performed if necessary. A widget user interface facility is included to allow user-guided direction of hierarchy modifications in an iterative fashion.Type: GrantFiled: March 14, 2013Date of Patent: January 6, 2015Assignee: Atrenta, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Nilam Sachan
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Publication number: 20140282338Abstract: Systems and methods are disclosed for modifying the hierarchy of a System-on-Chip and other circuit designs to provide better routing and performance as well as more effective power distribution. A user specifies desired modifications to the design hierarchy and then the system automatically alters the hierarchy by performing group, ungroup, and move operations to efficiently and optimally implement the desired hierarchy modifications. Any modifications to port and signal names are automatically resolved by the system and the resultant RTL matches the function of the input RTL. The user then evaluates the revised hierarchy with regard to power distribution and routing congestion, and further hierarchy modifications are performed if necessary. A widget user interface facility is included to allow user-guided direction of hierarchy modifications in an iterative fashion.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: ATRENTA, INC.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Nilam Sachan
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Patent number: 8813003Abstract: A system and methods are disclosed for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs. In particular, rule-based interface matching is automatically performed by analyzing actual port names on instances of functional elements and blocks to form signal groupings that comprise a higher-level abstracted description. An example syntax is provided for defining rules that are used to define how various analysis are performed. Data describing standard interfaces on common Intellectual Property (IP) blocks is optionally made available to facilitate interface matching. Also, a facility is included to allow user-guided mapping on instantiated interfaces with respect to actual port names in an RTL-level design.Type: GrantFiled: October 17, 2013Date of Patent: August 19, 2014Assignee: Atrenta, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Nitin Bhardwaj
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Patent number: 8782587Abstract: Provided are systems and methods for generating a higher level description of a circuit design comprising a plurality of interface instances. One or more buckets for each source instance with respect to each destination instance included in the circuit design are generated, and then the one or more buckets are sorted based on a number of bucket entries in each bucket. One or more interface instances are generated based on the sorted buckets. The higher level description of the circuit design is generated based on the one or more interface instances.Type: GrantFiled: November 21, 2012Date of Patent: July 15, 2014Assignee: Atrenta, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Chandrakanti Vamshi Krishna
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Patent number: 8656335Abstract: A system and several methods for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs, is provided. In particular, interface matching based on connectivity propagation is automatically performed whereby port names and properties on instances of functional elements and blocks are propagated to top level design ports as well as other instances of functional elements and blocks to create a more robust description of connectivity according to the RTL netlist, and to automatically form signal groupings that comprise a higher-level abstracted description. Also, a facility is included to allow user-guided grouping of instantiated interfaces with respect to actual signal names and properties in an RTL-level design.Type: GrantFiled: June 25, 2012Date of Patent: February 18, 2014Assignee: Atrenta, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Nitin Bhardwaj
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Publication number: 20140047399Abstract: A system and methods are disclosed for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs. In particular, rule-based interface matching is automatically performed by analyzing actual port names on instances of functional elements and blocks to form signal groupings that comprise a higher-level abstracted description. An example syntax is provided for defining rules that are used to define how various analysis are performed. Data describing standard interfaces on common Intellectual Property (IP) blocks is optionally made available to facilitate interface matching. Also, a facility is included to allow user-guided mapping on instantiated interfaces with respect to actual port names in an RTL-level design.Type: ApplicationFiled: October 17, 2013Publication date: February 13, 2014Applicant: Atrenta, Inc.Inventors: Anshuman NAYAK, Samantak CHAKRABARTI, Brijesh AGRAWAL, Nitin BHARDWAJ
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Publication number: 20140033155Abstract: Provided are systems and methods for generating a higher level description of a circuit design comprising a plurality of interface instances. One or more buckets for each source instance with respect to each destination instance included in the circuit design are generated, and then the one or more buckets are sorted based on a number of bucket entries in each bucket. One or more interface instances are generated based on the sorted buckets. The higher level description of the circuit design is generated based on the one or more interface instances.Type: ApplicationFiled: November 21, 2012Publication date: January 30, 2014Applicant: ATRENTA, INC.Inventors: Anshuman NAYAK, Samantak CHAKRABARTI, Brijesh AGRAWAL, Chandrakanti Vamshi KRISHNA
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Patent number: 8589835Abstract: A system and methods are disclosed for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs. In particular, rule-based interface matching is automatically performed by analyzing actual port names on instances of functional elements and blocks to form signal groupings that comprise a higher-level abstracted description. An example syntax is provided for defining rules that are used to define how various analysis are performed. Data describing standard interfaces on common Intellectual Property (IP) blocks is optionally made available to facilitate interface matching. Also, a facility is included to allow user-guided mapping on instantiated interfaces with respect to actual port names in an RTL-level design.Type: GrantFiled: March 29, 2012Date of Patent: November 19, 2013Assignee: Atrenta, Inc.Inventors: Anshuman Nayak, Samantak Chakrabarti, Brijesh Agrawal, Nitin Bhardwaj
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Publication number: 20130290917Abstract: A system and several methods for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs, is provided. In particular, interface matching based on connectivity propagation is automatically performed whereby port names and properties on instances of functional elements and blocks are propagated to top level design ports as well as other instances of functional elements and blocks to create a more robust description of connectivity according to the RTL netlist, and to automatically form signal groupings that comprise a higher-level abstracted description. Also, a facility is included to allow user-guided grouping of instantiated interfaces with respect to actual signal names and properties in an RTL-level design.Type: ApplicationFiled: June 25, 2012Publication date: October 31, 2013Applicant: ATRENTA, INCInventors: Anshuman NAYAK, Samantak CHAKRABARTI, Brijesh AGRAWAL, Nitin BHARDWAJ
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Publication number: 20130185682Abstract: A system and methods are disclosed for inferring higher level descriptions of circuit connectivity from register transfer level (RTL) netlists in order to provide more understandable and manageable design descriptions for complex System-on-Chip (SOC) designs. In particular, rule-based interface matching is automatically performed by analyzing actual port names on instances of functional elements and blocks to form signal groupings that comprise a higher-level abstracted description. An example syntax is provided for defining rules that are used to define how various analysis are performed. Data describing standard interfaces on common Intellectual Property (IP) blocks is optionally made available to facilitate interface matching. Also, a facility is included to allow user-guided mapping on instantiated interfaces with respect to actual port names in an RTL-level design.Type: ApplicationFiled: March 29, 2012Publication date: July 18, 2013Applicant: ATRENTA, INCInventors: Anshuman NAYAK, Samantak CHAKRABARTI, Brijesh AGRAWAL, Nitin Bhardwaj
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Publication number: 20080244472Abstract: A method for accelerating the generation of an optimized netlist from a RTL representation is provided. The method optimizes a given RTL description of an integrated circuit (IC) design by: generating a static single assignment (SSA) graph; creating value range propagation for each variable in the SSA graph; and, applying one or more of a set of optimization algorithms on the SSA graph. The optimization algorithms include, but are not limited to, dead-code elimination, bitwidth analysis, redundancy elimination, iteration loop optimization, algebraic simplification and so on. These algorithms operate on a word-level description to enable fast optimization. Furthermore, the optimized RTL accelerates the overall flow of an IC design.Type: ApplicationFiled: March 29, 2007Publication date: October 2, 2008Applicant: ATRENTA, INC.Inventors: Anshuman NAYAK, Samantak CHAKRABARTI, Satrajit PAL, Hitanshu DEWAN