Kenneth E Schmidt

US Patent:

8199359, Jun 12, 2012

Filed:

Apr 24, 2007

Appl. No.:

11/789206

Inventors:

Lakhbir Gandhi - Auburn WA, US
Robert Westervelt - Los Angeles CA, US
Kenneth A. Schmidt - Redondo Beach CA, US
Dongpei Su - Lomita CA, US
Alfred Abkarian - La Crescenta CA, US
Mark Raley - Torrance CA, US

Assignee:

Kyocera Mita Corporation - Osaka

International Classification:

G06F 15/00

US Classification:

358 19

Abstract:

A system and method for trapping in electrophotographic color printing and related technologies for printing or display in which the final image is an overlay of multiple components subject to alignment errors. Trapping is based on the cyan (C), magenta (M), and black (K) planes. There are four steps as follows: detect object edges on each of the four color planes; detect coincident and opposing edge transitions on each pair of planes (CM, CK, and KM); determine which plane to trap, i. e. , to extend object across edge; and generate trap on that plane using a simple trap generation rule and a single trap generation rule.

US Patent:

55488390, Aug 20, 1996

Filed:

Oct 14, 1994

Appl. No.:

8/322513

Inventors:

Stephen P. Caldwell - Columbia MD
Marvine Harris Jr. - Baltimore MD
Demetrios J. Matsakis - Ellicott City MD
Ronald W. Minarik - Lutherville MD
Kenneth M. Schmidt - Ellicott City MD
Benjamin F. Weigand - Baltimore MD
Robert S. Prill - Allenwood NJ
Arnold B. Siegel - Somerset NJ

International Classification:

H04B 126

US Classification:

455313

Abstract:

A wideband RF-to-IF frequency converter providing multiple use of frequency conversion components for many different types of RF input signals. In specific examples, many different types of signals for communication, navigation, and for interrogation are processed through at least partly common frequency-conversion channels. Such RF input signals in the range from approximately 2 MHz to 2,000 MHz are converted to output IF frequencies, such as 1 MHz and 30 MHz, for further processing in the common receiver. Some narrow band signals, after conversion to IF, are subjected to off-center filtering in relatively broadband IF filters. Input RF filters are not used. Among several frequency conversion stages, only one of the local oscillator signals is tunable; but it is made tunable in relatively small, precise steps by using a double phase-locked loop arrangement in the frequency synthesizer.