Adarsh K Pun

US Patent:

54789940, Dec 26, 1995

Filed:

Jul 13, 1994

Appl. No.:

8/274252

Inventors:

Sam Rahman - Torrance CA
Jim Magner - Los Alamitos CA
John Brown - Garden Grove CA
Adarsh Pun - Rancho Palos Verdes CA
Grant Parker - Los Alamitos CA

International Classification:

G06K 500

US Classification:

235380

Abstract:

A secure credit card 10 has a body member to which is attached a microprocessor controller 14 electrically coupled a Programmable Read Only Memory (PROM) device 18 programmed with a series of random numbers in a predetermined sequence. The random numbers are identical to random numbers in a host computer and in the identical sequence as the random numbers in the host computer. This computer is accessible upon each use of the credit card 10. The Programmable Read Only Memory (PROM) accesses the next random number in sequence with each use of the credit card 10 to permit verification by comparing the random number with each use of the credit card 10 with the next random number in sequence as indicated by the computer. A switch 20 actuated with each use of the credit card 10 provides a pulse signal that activates the microprocessor controller 14 to turn on the Programmable Read Only Memory (PROM) to access the next random number in the sequence. A counter 26 connected to the microprocessor controller 14 counts the number of pulse signals received to count each use of the credit card 10.

US Patent:

61253332, Sep 26, 2000

Filed:

Nov 6, 1997

Appl. No.:

8/965599

Inventors:

Adarsh Kumar Pun - Rancho Palos Verdes CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

B64D 4700

US Classification:

702 42

Abstract:

The present invention is embodied in an apparatus and method for generating fatigue spectra on a chosen aircraft for which a Finite element model is available and for which a library of external load summations at key interfaces and key fundamental parameters are available from an aeroelastic analysis. The fatigue spectra generation system of the present invention represents a profile of stresses endured by the aircraft due to numerous events, such as ground and maneuver events, occurring during the life of the aircraft. The system calculates a total stress based on load and unit conditions associated with outside events by factoring up the unit conditions to derive individual stresses for each event and by summing all unit conditions.

US Patent:

56273550, May 6, 1997

Filed:

Apr 13, 1995

Appl. No.:

8/422708

Inventors:

Sam Rahman - Torrance CA
James Magner - Los Alamitos CA
John Brown - Garden Grove CA
Adarsh Pun - Rancho Palos Verdes CA
Grant Parker - Los Alamitos CA

International Classification:

G06K 500

US Classification:

235380

Abstract:

Security equipment protects the relaying of account numbers and personal identification numbers (PIN) by telephonic or other communication link. The equipment includes a host computer an a remote portable transaction device that interact. A credit granting institution generates an account number and a series of unique personal identification numbers for each account number. This information is stored in the host computer's memory and is assigned as a reference series to an individual customer account number. An identical series of numbers in the same sequence is stored in the memory of the remote device. In operation, the customer account on the host computer is activated and the host computer's memory is indexed sequentially to the first number in the reference series. During the use of the remote device, a unique personal identification number is added to the customer account number and transmitted to the host computer. There it is compared to the account number and personal identification number in the reference series.