DAVID HITOSHI YAMADA
Pilots at Weldon Ln, San Jose, CA

License number
California A2391109
Issued Date
Apr 2015
Expiration Date
Apr 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1126 Weldon Ln, San Jose, CA 95131

Professional information

David Yamada Photo 1

Distributed Multiprocess Transaction Processing System And Method

US Patent:
4819159, Apr 4, 1989
Filed:
Aug 29, 1986
Appl. No.:
6/902191
Inventors:
Dale L. Shipley - Los Gatos CA
Joan D. Arnett - San Jose CA
William A. Arnett - San Jose CA
Steven D. Baumel - Sunnyvale CA
Anil Bhavnani - Campbell CA
David L. Nelson - Santa Clara CA
Maty Soha - Cupertino CA
David H. Yamada - San Jose CA
Assignee:
Tolerant Systems, Inc. - San Jose CA
International Classification:
G06F 1500
US Classification:
364200
Abstract:
The method and means of fault-tolerant processing includes a plurality of system building blocks, each including a real-time processor and specialized processors and local non-volatile memory that are coupled to communicate internally within each of the system building blocks, which, in turn, communicate with one another over local-area network links, and communicate with the remainder of the system over an I/O bus controlled by an I/O processor. Transaction-based processing is under control of a transaction coordinator which permits all of the transaction operations to complete successfully and then alter stored data for the completed transaction, or not to alter any stored data if a transaction is not completed. The transaction coordinator maintains a record of the distributed file accesses required during processing of a transaction, and prevents other transactions from altering stored data during processing of a transaction.