Inventor
CHANG ALBERT
US29 patents
⚠️ This page may combine multiple inventors who share the name “CHANG ALBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
11 patentsUS5129088AJul 7, 1992
Data processing method to create virtual disks from non-contiguous groups of logically contiguous addressable blocks of direct access storage device
IBM300 citations98
US4897781AJan 30, 1990
System and method for using cached data at a local node after re-opening a file at a remote node in a distributed networking environment
IBM494 citations98
USRE37305EJul 31, 2001
Virtual memory address translation mechanism with controlled data persistence
IBM95 citations97
USRE36462EDec 21, 1999
Method to control paging subsystem processing in virtual memory data processing system during execution of critical code sections
IBM108 citations97
US4937736AJun 26, 1990
Memory controller for protected memory with automatic access granting capability
IBM74 citations95
US4638426AJan 20, 1987
Virtual memory address translation mechanism with controlled data persistence
IBM106 citations95
US6338128B1Jan 8, 2002
System and method for invalidating an entry in a translation unit
IBM24 citations92
US6311253B1Oct 30, 2001
Methods for caching cache tags
IBM21 citations92
US5835928ANov 10, 1998
Circuitry and method for relating first and second memory locations where the second memory location stores information from the first memory location
IBM57 citations92
US4718008AJan 5, 1988
Method to control paging subsystem processing in a virtual memory data processing system during execution of critical code sections
IBM36 citations92
US5418927AMay 23, 1995
I/O cache controller containing a buffer memory partitioned into lines accessible by corresponding I/O devices and a directory to track the lines
IBM27 citations91
CANON KK
5 patentsUS8350868B2Jan 8, 2013
Method of compositing variable alpha fills supporting group opacity
CANON KK3 citations61
US9401035B2Jul 26, 2016
Text rendering method with improved clarity of corners
CANON KK0 citations52
US9922623B2Mar 20, 2018
Emboldening of outline fonts
CANON KK0 citations43
US10395621B2Aug 27, 2019
Method, system and apparatus for modifying a font character
CANON KK0 citations42
US9779526B2Oct 3, 2017
Method, system and apparatus for determining area of a pixel covered by a scalable definition for a character
CANON KK0 citations33