Nozomu TOGAWA


A Thermal-Aware High-Level Synthesis Algorithm for RDR Architectures through Binding and Allocation
Kazushi KAWAMURA  Masao YANAGISAWA  Nozomu TOGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Vol. E96-A  No. 1  pp. 312-321
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
high-level synthesisRDRthermal-awarehot spotsinterconnect delays
  Summary |  Full Text:PDF (1.5MB)

Scan-Based Attack on AES through Round Registers and Its Countermeasure
Youhua SHI  Nozomu TOGAWA  Masao YANAGISAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/12/01
Vol. E95-A  No. 12  pp. 2338-2346
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: High-Level Synthesis and System-Level Design
Keyword: 
scan-based side channel attackcrypto implementationsecuritytestability
  Summary |  Full Text:PDF (2MB)

A Locality-Aware Hybrid NoC Configuration Algorithm Utilizing the Communication Volume among IP Cores
Seungju LEE  Masao YANAGISAWA  Nozomu TOGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/09/01
Vol. E95-A  No. 9  pp. 1538-1549
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
network-on-chip (NoC)hybrid NoC algorithmhierarchical NoCbusmesh NoC (BMNoC)
  Summary |  Full Text:PDF (1.6MB)

Greedy Algorithm for the On-Chip Decoupling Capacitance Optimization to Satisfy the Voltage Drop Constraint
Mikiko SODE TANAKA  Nozomu TOGAWA  Masao YANAGISAWA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2482-2489
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Physical Level Design
Keyword: 
power supply noisepower distribution networksignal integritycircuit simulation
  Summary |  Full Text:PDF (710.8KB)

Greedy Optimization Algorithm for the Power/Ground Network Design to Satisfy the Voltage Drop Constraint
Mikiko SODE TANAKA  Nozomu TOGAWA  Masao YANAGISAWA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/04/01
Vol. E94-A  No. 4  pp. 1082-1090
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
power supply noisepower distribution networkssignal integritycircuit simulation
  Summary |  Full Text:PDF (640.2KB)

Scan-Based Side-Channel Attack against RSA Cryptosystems Using Scan Signatures
Ryuta NARA  Kei SATOH  Masao YANAGISAWA  Tatsuo OHTSUKI  Nozomu TOGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12  pp. 2481-2489
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis, Test and Verification
Keyword: 
scan-based side-channel attackscan pathtestabilitycryptosystemRSAsecurity
  Summary |  Full Text:PDF (1.2MB)

A Two-Level Cache Design Space Exploration System for Embedded Applications
Nobuaki TOJO  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3238-3247
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Embedded, Real-Time and Reconfigurable Systems
Keyword: 
two-level cacheL1/L2cache optimizationdesign space explorationcache simulationembedded system
  Summary |  Full Text:PDF (521KB)

X-Handling for Current X-Tolerant Compactors with More Unknowns and Maximal Compaction
Youhua SHI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3119-3127
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis, Test and Verfication
Keyword: 
scan testtest data compressionX-masking
  Summary |  Full Text:PDF (850.7KB)

Floorplan-Aware High-Level Synthesis for Generalized Distributed-Register Architectures
Akira OHCHI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3169-3179
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: High-Level Synthesis and System-Level Design
Keyword: 
high-level synthesisfloorplandistributed-register architecturegeneralized distributed-register architecturelocal registerlocal controller
  Summary |  Full Text:PDF (824.3KB)

A Scan-Based Attack Based on Discriminators for AES Cryptosystems
Ryuta NARA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/12/01
Vol. E92-A  No. 12  pp. 3229-3237
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Embedded, Real-Time and Reconfigurable Systems
Keyword: 
scan-based attackside-channel attackscan chaintestabilitysecuritycryptographyAES
  Summary |  Full Text:PDF (1.2MB)

Unified Dual-Radix Architecture for Scalable Montgomery Multiplications in GF(P) and GF(2n)
Kazuyuki TANIMURA  Ryuta NARA  Shunitsu KOHARA  Youhua SHI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2304-2317
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
elliptic curve cryptographydual-radixmodular multiplicationMontgomery multiplicationscalabilityunified
  Summary |  Full Text:PDF (1.6MB)

An L1 Cache Design Space Exploration System for Embedded Applications
Nobuaki TOJO  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/06/01
Vol. E92-A  No. 6  pp. 1442-1453
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
cachecache optimizationdesign space explorationcache simulationembedded system
  Summary |  Full Text:PDF (1.1MB)

A Unified Test Compression Technique for Scan Stimulus and Unknown Masking Data with No Test Loss
Youhua SHI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/12/01
Vol. E91-A  No. 12  pp. 3514-3523
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Logic Synthesis, Test and Verification
Keyword: 
scan testtest data compressionX-masking
  Summary |  Full Text:PDF (582.2KB)

Low Power LDPC Code Decoder Architecture Based on Intermediate Message Compression Technique
Kazunori SHIMIZU  Nozomu TOGAWA  Takeshi IKENAGA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/04/01
Vol. E91-A  No. 4  pp. 1054-1061
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
low-density parity-check codemessage-passing algorithmintermediate message compression techniqueclock gated shift register for intermediate message
  Summary |  Full Text:PDF (450.2KB)

A Secure Test Technique for Pipelined Advanced Encryption Standard
Youhua SHI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2008/03/01
Vol. E91-D  No. 3  pp. 776-780
Type of Manuscript: Special Section LETTER (Special Section on Test and Verification of VLSIs)
Category: 
Keyword: 
scan testsecuritytest quality
  Summary |  Full Text:PDF (145.1KB)

Power-Efficient LDPC Decoder Architecture Based on Accelerated Message-Passing Schedule
Kazunori SHIMIZU  Tatsuyuki ISHIKAWA  Nozomu TOGAWA  Takeshi IKENAGA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/12/01
Vol. E89-A  No. 12  pp. 3602-3612
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: VLSI Architecture
Keyword: 
low-density parity-check codesparallel LDPC decoder architecturemessage-passing algorithmFIFO-based buffering
  Summary |  Full Text:PDF (1018KB)

Partially-Parallel LDPC Decoder Achieving High-Efficiency Message-Passing Schedule
Kazunori SHIMIZU  Tatsuyuki ISHIKAWA  Nozomu TOGAWA  Takeshi IKENAGA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/04/01
Vol. E89-A  No. 4  pp. 969-978
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
low-density parity-check codespartially-parallel LDPC decodermessage-passing algorithmFPGA
  Summary |  Full Text:PDF (749.1KB)

Selective Low-Care Coding: A Means for Test Data Compression in Circuits with Multiple Scan Chains
Youhua SHI  Nozomu TOGAWA  Shinji KIMURA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/04/01
Vol. E89-A  No. 4  pp. 996-1004
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
test data compressiontest channelsscan test
  Summary |  Full Text:PDF (445.9KB)

A Fast Elliptic Curve Cryptosystem LSI Embedding Word-Based Montgomery Multiplier
Jumpei UCHIDA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/03/01
Vol. E89-C  No. 3  pp. 243-249
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design Technology in the Sub-100 nm Era)
Category: System LSIs and Microprocessors
Keyword: 
elliptic curve cryptosystemMontgmery multiplierpublic-key cryptosystemLSI design
  Summary |  Full Text:PDF (260.4KB)

A SIMD Instruction Set and Functional Unit Synthesis Algorithm with SIMD Operation Decomposition
Nozomu TOGAWA  Koichi TACHIKAKE  Yuichiro MIYAOKA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/07/01
Vol. E88-D  No. 7  pp. 1340-1349
Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1)
Category: Programmable Logic, VLSI, CAD and Layout
Keyword: 
processor synthesisinstruction set synthesispacked SIMD-type functional unitpacked SIMD-type instructionhardware/software cosynthesis
  Summary |  Full Text:PDF (812.4KB)

Reconfigurable Adaptive FEC System Based on Reed-Solomon Code with Interleaving
Kazunori SHIMIZU  Nozomu TOGAWA  Takeshi IKENAGA  Satoshi GOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/07/01
Vol. E88-D  No. 7  pp. 1526-1537
Type of Manuscript: Special Section PAPER (Special Section on Recent Advances in Circuits and Systems--Part 1)
Category: Adaptive Signal Processing
Keyword: 
dynamic reconfigurable systemadaptive FECReed-Solomon code with interleaving
  Summary |  Full Text:PDF (707.5KB)

Sub-operation Parallelism Optimization in SIMD Processor Core Synthesis
Hideki KAWAZU  Jumpei UCHIDA  Yuichiro MIYAOKA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/04/01
Vol. E88-A  No. 4  pp. 876-884
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 17th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
processor synthesispacked SIMD type operationhardware/software partitioninghardware/software cosynthesissub-operation parallelism
  Summary |  Full Text:PDF (832KB)

High-Level Power Optimization Based on Thread Partitioning
Jumpei UCHIDA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/12/01
Vol. E87-A  No. 12  pp. 3075-3082
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: System Level Design
Keyword: 
high-level synthesislow powerthread partitioninggated clocks
  Summary |  Full Text:PDF (435.9KB)

FPGA-Based Reconfigurable Adaptive FEC
Kazunori SHIMIZU  Jumpei UCHIDA  Yuichiro MIYAOKA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/12/01
Vol. E87-A  No. 12  pp. 3036-3046
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: System Level Design
Keyword: 
dynamic reconfigurable systemadaptive FECFPGAReed Solomon codes
  Summary |  Full Text:PDF (493.3KB)

A Hardware/Software Cosynthesis Algorithm for Processors with Heterogeneous Datapaths
Yuichiro MIYAOKA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/04/01
Vol. E87-A  No. 4  pp. 830-836
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
hardware/software cosynthesisprocessor synthesisheterogeneous datapaths and heterogeneous registers
  Summary |  Full Text:PDF (383.3KB)

A Hardware/Software Partitioning Algorithm for Processor Cores with Packed SIMD-Type Instructions
Nozomu TOGAWA  Koichi TACHIKAKE  Yuichiro MIYAOKA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Vol. E86-A  No. 12  pp. 3218-3224
Type of Manuscript: Special Section LETTER (Special Section on VLSI Design and CAD Algorithms)
Category: Design Methodology
Keyword: 
processor synthesispacked SIMD type instructionhardware/software partitioninghardware/software cosynthesisDSP processor
  Summary |  Full Text:PDF (407.8KB)

A Retargetable Simulator Generator for DSP Processor Cores with Packed SIMD-type Instructions
Nozomu TOGAWA  Kyosuke KASAHARA  Yuichiro MIYAOKA  Jinku CHOI  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/12/01
Vol. E86-A  No. 12  pp. 3099-3109
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Simulation Accelerator
Keyword: 
retargetable simulatorDSP processorpacked SIMD type instructionhardware/software cosynthesisprocessor synthesis
  Summary |  Full Text:PDF (855.5KB)

A Hardware/Software Cosynthesis System for Processor Cores with Content Addressable Memories
Nozomu TOGAWA  Takao TOTSUKA  Tatsuhiko WAKUI  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/05/01
Vol. E86-A  No. 5  pp. 1082-1092
Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
content addressable memoryfunctional memorymicro processor corehardware/software cosynthesishardware/software partitioning
  Summary |  Full Text:PDF (643KB)

A High-Level Energy-Optimizing Algorithm for System VLSIs Based on Area/Time/Power Estimation
Shinichi NODA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2655-2666
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: High Level Synthesis
Keyword: 
high-level synthesisenergy optimizationarea/time constraints
  Summary |  Full Text:PDF (653.4KB)

An Algorithm and a Flexible Architecture for Fast Block-Matching Motion Estimation
Jinku CHOI  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12  pp. 2603-2611
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: VLSI Design
Keyword: 
motion estimationblock-matchingalgorithmarchitectureVHDL
  Summary |  Full Text:PDF (590.8KB)

High-Level Area/Delay/Power Estimation for Low Power System VLSIs with Gated Clocks
Shinichi NODA  Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/04/01
Vol. E85-A  No. 4  pp. 827-834
Type of Manuscript: Special Section PAPER (Special Section of Selected Papers from the 14th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
high-level synthesispower estimationgated clockswitching activitysequential circuit
  Summary |  Full Text:PDF (503.1KB)

A New Hardware/Software Partitioning Algorithm for DSP Processor Cores with Two Types of Register Files
Nozomu TOGAWA  Takashi SAKURAI  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/11/01
Vol. E84-A  No. 11  pp. 2802-2807
Type of Manuscript: Special Section LETTER (Special Section on VLSI Design and CAD Algorithms)
Category: Hardware/Software Codesign
Keyword: 
hardware/software cosynthesishardware/software partitioningdigital signal processor (DSP)register filehardware unit
  Summary |  Full Text:PDF (323KB)

Area and Delay Estimation in Hardware/Software Cosynthesis for Digital Signal Processor Cores
Nozomu TOGAWA  Yoshiharu KATAOKA  Yuichiro MIYAOKA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/11/01
Vol. E84-A  No. 11  pp. 2639-2647
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Hardware/Software Codesign
Keyword: 
area estimationdelay estimationhardware/software cosynthesisdigital signal processor (DSP)microprocessor
  Summary |  Full Text:PDF (414.2KB)

An Area/Time Optimizing Algorithm in High-Level Synthesis of Control-Based Hardwares
Nozomu TOGAWA  Masayuki IENAGA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/05/01
Vol. E84-A  No. 5  pp. 1166-1176
Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
high-level synthesiscontrol-based hardwarearea/time optimizationschedulingresource allocation
  Summary |  Full Text:PDF (685.7KB)

CAM Processor Synthesis Based on Behavioral Descriptions
Nozomu TOGAWA  Tatsuhiko WAKUI  Tatsuhiko YODEN  Makoto TERAJIMA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/12/20
Vol. E83-A  No. 12  pp. 2464-2473
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Co-design and High-level Synthesis
Keyword: 
content addressable memoryfunctional memorybehavioral synthesisbehavioral descriptionhigh-level synthesis
  Summary |  Full Text:PDF (701.7KB)

A Hardware/Software Cosynthesis System for Digital Signal Processor Cores with Two Types of Register Files
Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/03/20
Vol. E83-A  No. 3  pp. 442-451
Type of Manuscript: Special Section PAPER (Special Section of Selected Papers from the 12th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
hardware/software cosynthesisprocessor coredigital signal processingtwo types of register files
  Summary |  Full Text:PDF (675.6KB)

A Hardware/Software Cosynthesis System for Digital Signal Processor Cores
Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/11/20
Vol. E82-A  No. 11  pp. 2325-2337
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
hardware/software cosynthesishardware/software partitioningprocessor coredigital signal processing
  Summary |  Full Text:PDF (775.4KB)

A Depth-Constrained Technology Mapping Algorithm for Logic-Blocks Composed of Tree-Structured LUTs
Nozomu TOGAWA  Koji ARA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/03/20
Vol. E82-A  No. 3  pp. 473-482
Type of Manuscript: Special Section PAPER (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
Category: 
Keyword: 
technology mappinglogic-blocklookup tablelogic depth
  Summary |  Full Text:PDF (451.2KB)

A High-Level Synthesis System for Digital Signal Processing Based on Data-Flow Graph Enumeration
Nozomu TOGAWA  Takafumi HISAKI  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/12/20
Vol. E81-A  No. 12  pp. 2563-2575
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: High-level Synthesis
Keyword: 
data-flow oriented processhigh-level synthesisdata-flow graph enumerationschedulingresource binding
  Summary |  Full Text:PDF (1MB)

A Fast Scheduling Algorithm Based on Gradual Time-Frame Reduction for Datapath Synthesis
Nozomu TOGAWA  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/06/20
Vol. E81-A  No. 6  pp. 1231-1241
Type of Manuscript: PAPER
Category: VLSI Design Technology and CAD
Keyword: 
schedulingresource bindinghigh-level synthesisdata-flow graphgradual time-frame reduction
  Summary |  Full Text:PDF (846.9KB)

An FPGA Layout Reconfiguration Algorithm Based on Global Routes for Engineering Changes in System Design Specifications
Nozomu TOGAWA  Kayoko HAGI  Masao YANAGISAWA  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/05/20
Vol. E81-A  No. 5  pp. 873-884
Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
FPGAengineering changelayout reconfigurationplacement and routing
  Summary |  Full Text:PDF (968.2KB)

A performance-Oriented Simultaneous Placement and Global Routing Algorithm for Transport-Processing FPGAs
Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/10/20
Vol. E80-A  No. 10  pp. 1795-1806
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
FPGAtransport processinglayout designplacement and routingperformance optimizationcircuit delay
  Summary |  Full Text:PDF (899.3KB)

Fast Scheduling and Allocation Algorithms for Entropy CODEC
Katsuharu SUZUKI  Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1997/10/20
Vol. E80-D  No. 10  pp. 982-992
Type of Manuscript: Special Section PAPER (Special Issue on Synthesis and Verification of Hardware Design)
Category: High Level Synthesis
Keyword: 
entropy CODECschedulingallocationcontrol-flow graph
  Summary |  Full Text:PDF (807.8KB)

A Circuit Partitioning Algorithm with Path Delay Constraints for Multi-FPGA Systems
Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/03/20
Vol. E80-A  No. 3  pp. 494-505
Type of Manuscript: Special Section PAPER (Special Section of Selected Papers from the 9th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
FPGAmulti-FPGA systemcircuit partitioningpath delaylogic-block replication
  Summary |  Full Text:PDF (895.1KB)

A Simultaneous Technology Mapping, Placement, and Global Routing Algorithm for FPGAs with Path Delay Constraints
Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/03/20
Vol. E79-A  No. 3  pp. 321-329
Type of Manuscript: Special Section PAPER (Special Section of Selected Papers from the 8th Karuizawa Workshop on Circuits and Systems)
Category: 
Keyword: 
FPGAtechnology mappinglayoutpath delayperformance optimization
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A Circuit Partitioning Algorithm with Replication Capability for Multi-FPGA Systems
Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/12/20
Vol. E78-A  No. 12  pp. 1765-1776
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
FPGAcircuit partitioninglogic-block replicationnetwork flow
  Summary |  Full Text:PDF (904.6KB)

Maple: A Simultaneous Technology Mapping, Placement, and Global Routing Algorithm for Field-Programmable Gate Arrays
Nozomu TOGAWA  Masao SATO  Tatsuo OHTSUKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/12/20
Vol. E77-A  No. 12  pp. 2028-2038
Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: 
Keyword: 
FPGAlook up tabletechnology mappinglayout designplacementglobal routing
  Summary |  Full Text:PDF (931KB)