John Daspit resumes & CV records
Resumes
John Daspit
John Daspit
Location:
United States
John I Daspit DeceasedSanta Monica, CA
John Daspit Phones & Addresses
Santa Monica, CA
Mentions for John I Daspit
Publications & IP owners
Us Patents
Non-Wire Contact Device Application For Cryptographic Module Interfaces
US Patent:
6971021, Nov 29, 2005
Filed:
Mar 8, 2000
Appl. No.:
09/520589
Inventors:
John Ignatius Daspit - Rancho Palos Verdes CA, US
Michael Masaji Furusawa - Chino Hills CA, US
Chieu The Nguyen - Irvine CA, US
Michael Masaji Furusawa - Chino Hills CA, US
Chieu The Nguyen - Irvine CA, US
Assignee:
Rainbow Technologies, Inc. - Irvine CA
International Classification:
G06F011/30
H04L005/16
H04L005/16
US Classification:
713192, 713159, 713172, 713193, 375220
Abstract:
Non-contact interfaces to cryptographic modules include non-contact inputs, which may contain magnetic coupling, RF coupling, infrared coupling, optical coupling or acoustical coupling to load cryptographic data into cryptographic modules. By using non-contact methods of coupling, the physical inputs to the module can be hidden, as no external connectors to input cryptographic data are required. In addition, several non-contact inputs can be disposed within a cryptographic module, at orientations and spacings which require the specific placement of transmitting units, thereby increasing the security of the module. In addition, by having several inputs to the cryptographic module, the cryptographic function may be made to be dependent on a sequencing of data between the inputs and/or may require simultaneous inputs on two or more sensors.
Switched Mode Electrode Ballast
US Patent:
4441053, Apr 3, 1984
Filed:
Nov 27, 1981
Appl. No.:
6/325306
Inventors:
John I. Daspit - Santa Monica CA
Assignee:
Data-Design Laboratories - Cucamonga CA
International Classification:
H05B 3700
US Classification:
315206
Abstract:
An electronic ballast circuit for operating high intensity gas discharge tubes such as high pressure sodium, high pressure mercury and metal halide tubes, as well as ordinary fluorescent tubes. In the preferred embodiment, an inductance and a capacitance are connected in series with the load across the dc supply, with a solid state switch between the junction of the inductance and capacitance and the other side of the load, and a control circuit for the switch to operate the switch at a high frequency such as 20,000 hertz. Alternative embodiments omitting the capacitance and utilizing a transformer for the inductance are especially suited for less expensive units and for emergency lighting use. Power supply circuits with switching operated in conjunction with the previously mentioned switch provide for regulation of lamp output during start-up and for compensating changes in supply voltage coordinated with lamp aging.
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