Ming Cheng Lee

US Patent:

20030007636, Jan 9, 2003

Filed:

Jun 25, 2001

Appl. No.:

09/888838

Inventors:

Vladimir Alves - Irvine CA, US
Ming Lee - Irvine CA, US

International Classification:

H04K001/04

US Classification:

380/037000

Abstract:

A digital signal processing apparatus and method for executing a block cipher routine. A method includes configuring a portion of an array of independently reconfigurable processing elements for performing the block cipher routine. The method further includes executing the block cipher routine on data blocks received at the configured portion of the array of processing elements. The non-configured portion of the array can be shut down to conserve power. An apparatus includes a context memory for storing one or more context instructions for performing the block cipher routine. The apparatus further includes an array of independently reconfigurable processing elements, each of which is responsive to a context instruction for being configured to execute a portion of the block cipher routine.

US Patent:

40310493, Jun 21, 1977

Filed:

Apr 22, 1974

Appl. No.:

5/462811

Inventors:

Frank N. Hirosawa - Monterey Park CA
Ming H. Lee - Glendale CA

Assignee:

Furane Plastics, Inc. - Los Angeles CA

International Classification:

C08G 1832

US Classification:

260 25AM

Abstract:

Polyurethane elastomers, low density high resiliency polyurethane foams and compositions and processes for preparing urethane foams and elastomers comprising reacting a mixture of a polyalkylene polyol having reactive hydrogen atoms as determined by the Zerewitinoff method exhibiting a molecular weight of at least 500, at least one organic polyisocyanate, and as a cross-linking agent at least one sulfur-containing polyamine compound exhibitng the formula: ##STR1## wherein R is a hydrocarbon, and R' is selected from the group consisting of hydrogen, halogens, and hydrocarbons.