Kelley, Stephen H.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kelley, Stephen H..The latest application filed is for "system and method for data encryption".

Company Profile

0.15.1

Kelley, Stephen H. - Austin TX
Kelley; Stephen H. - Tempe AZ

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
System and method for data encryption App 20020021804 - Ledzius, Robert C. ; et al.	2002-02-21
System and method for achieving uniform screen brightness within a matrix display Grant 6,204,834 - Baker , et al. March 20, 2	2001-03-20
Monotonic A/D converter which minimizes circuitry for high order bit conversion Grant 4,618,852 - Kelley , et al. October 21, 1	1986-10-21
Switched capacitor precision difference amplifier Grant 4,604,584 - Kelley August 5, 1	1986-08-05
High speed limited distance multiplexed data communications modem using a single twisted pair of conductors Grant 4,594,707 - Merritt , et al. June 10, 1	1986-06-10
Simultaneous voice and asynchronous data telephone Grant 4,593,389 - Wurzburg , et al. June 3, 1	1986-06-03
Digital loop transceiver having a power up/down circuit Grant 4,484,028 - Kelley , et al. November 20, 1	1984-11-20
Circuit for interfacing with both TTL and CMOS voltage levels Grant 4,472,647 - Allgood , et al. September 18, 1	1984-09-18
Digital loop transceiver for interfacing a digital PABX to a digital subscriber set via a subscriber line Grant 4,432,089 - Wurzburg , et al. February 14, 1	1984-02-14
Precision gain AC coupled operational amplifier Grant 4,387,345 - Kelley June 7, 1	1983-06-07
Capacitive DAC to filter interface circuit Grant 4,384,276 - Kelley , et al. May 17, 1	1983-05-17
Multiple function operational amplifier circuit Grant 4,370,632 - Allgood , et al. January 25, 1	1983-01-25
(Sin X)/X correction circuit for a sampled data system Grant 4,320,519 - Kelley , et al. March 16, 1	1982-03-16
Programmable A-law and .mu.-law DAC Grant 4,311,988 - Kelley , et al. January 19, 1	1982-01-19
Hybrid circuit Grant 4,300,023 - Kelley , et al. November 10, 1	1981-11-10
Closed loop companding ratio control for continuously variable slope delta modulation Grant 4,151,517 - Kelley April 24, 1	1979-04-24

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