1
Keith B Hardin, John T Fessler, Donald R Bush, James J Booth: Spread spectrum clock generator and associated method. Lexmark International, Bell Seltzer Park & Gibson, January 30, 1996: US05488627 (116 worldwide citation)

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of ...


2
James Ronald Booth, Donald Reid Bush, John Thomas Fessler, Keith Bryan Hardin: Spread spectrum clock generator and associated method. Lexmark International, John A Brady, February 16, 1999: US05872807 (54 worldwide citation)

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of ...


3
Hardin Keith B, Fessler John T, Bush Donald Reid, Booth James Ronald: Spread spectrum clock generator and associated method.. Lexmark Int, May 31, 1995: EP0655829-A1 (28 worldwide citation)

A clock circuit includes an oscillator (15) for generating a reference frequency signal, and a spread spectrum clock generator (14) cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at har ...


4
James Ronald Booth, Donald Reid Bush, John Thomas Fessler, Keith Bryan Hardin: Spread spectrum clock generator and associated method. Lexmark International, John A Brady, February 2, 1999: US05867524 (19 worldwide citation)

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of ...


5
Hardin Keith B, Fessler John T, Bush Donald Reid, Booth James Ronald: Spread spectrum clock generator and associated method. Lexmark Int, January 31, 2001: EP1073194-A2

A clock circuit includes an oscillator (15) for generating a reference frequency signal, and a spread spectrum clock generator (14) cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at har ...


6
Booth James R, Bush Donald R, Fessler John T, Hardin Keith B: Circuit dhorloge a etalement du spectre et methode, Spread spectrum clock generator and associated method. Lexmark International, Lexmark International, SMART & BIGGAR, June 21, 2005: CA2131567

A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of ...


7
Hardin Keith B, Fessler John T, Bush Donald R, Booth James R: Spread spectrum clock generator and associated method. Lexmark Internatl, September 5, 1995: JP1995-235862

PURPOSE: To generate clock signals for driving a microprocessor or other digital circuits at a relatively high frequency and to reduce the spectrum amplitude of EMI(electromagnetic interference) components measured for a relatively wide band width. CONSTITUTION: A clock circuit is loaded with an osc ...


8
Hardin Keith B, Fessler John T, Bush Donald R, Booth James R: Spread spectrum clock generator and associated method. Lexmark Internatl, August 17, 2006: JP2006-217642

PROBLEM TO BE SOLVED: To provide a clock generator and an associated method for generating a clock signal, for driving a microprocessor or other digital circuit at relatively high frequencies, while reducing the spectral amplitude of EMI components as measured over a relatively large bandwidth.SOLUT ...