John David (John David) Wellman  John David (John David) Wellman photo         

contact information

Research
Thomas J. Watson Research Center, Yorktown Heights, NY USA
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2012

Modeling system-level effects of soft errors
Pradip Bose, Prabhakar N Kudva, Jude A Rivers, Pia N Sanda, John-David Wellman
US Patent 8,091,050


2011



2009

System and method of execution of register pointer instructions ahead of instruction issues
E Altman, M K Gschwind, J A Rivers, S W Sathaye, J D Wellman, V Zyuban
US Patent 7,496,733

Non-homogeneous multi-processor system with shared memory
E.R. Altman, P.G. Capek, M.K. Gschwind, C.R. Johns, H.P. Hofstee, M.E. Hopkins, J.A. Kahle, S.W. Sathaye, J.D. Wellman, R. Nair
US Patent 7,509,457

IMPLEMENTING INSTRUCTION SET ARCHITECTURES WITH NON-CONTIGUOUS REGISTER FILE SPECIFIERS
M K Gschwind, R K Montoye, B Olsson, J Wellman
US Patent App. 12/534,968


2008

Extending the number of instruction bits in processors with fixed length instructions, in a manner compatible with existing code
E R Altman, M Gschwind, D A Luick, D A Prener, J A Rivers, S W Sathaye, J D Wellman
US Patent 7,340,588

System and method of execution of register pointer instructions ahead of instruction issue
E Altman, M K Gschwind, J A Rivers, S W Sathaye, J D Wellman, V Zyuban
US Patent 7,325,124

Transient cache storage with discard function for disposable data
E R Altman, M K Gschwind, R K Montoye, J A Rivers, S W Sathaye, J D Wellman, V Zyuban
US Patent 7,461,209


2007

COMPUTER PROCESSING SYSTEM EMPLOYING AN INSTRUCTION SCHEDULE CACHE
K K Kailas, R Nair, S W Sathaye, W Sauer, J Wellman
US Patent App. 20,080/162,884




2006




2005


Symmetric multi-processing system utilizing a DMAC to allow address translation for attached processors
E R Altman, P G Capek, M Gschwind, H P Hofstee, J A Kahle, R Nair, S W Sathaye, J D Wellman
US Patent 6,907,477

Method and apparatus for control signals memoization in a multiple instruction issue microprocessor
E.R. Altman, M.K. Gschwind, J.A. Rivers, S.W. Sathaye, J.D. Wellman, V.V. Zyuban
US Patent App. 11/034,284


2004

Token based DMA
H P Hofstee, R Nair, J D Wellman
US Patent 6,820,142


Symmetric multi-processing system with attached processing units being able to access a shared memory without being structurally configured with an address translation mechanism
E R Altman, P G Capek, M Gschwind, H P Hofstee, J A Kahle, R Nair, S W Sathaye, J D Wellman, M Suzuoki, T Yamazaki
US Patent 6,779,049


2000

Symmetric multi-processing system
E R Altman, P G Capek, M K Gschwind, H P Hofstee, J A Kahle, R Nair, S W Sathaye, J Wellman
US Patent App. 20,020/078,308