1
Christopher J Bland: Circuit for generating a spread spectrum clock. Microclock, Townsend and Townsend and Crew, March 11, 1997: US05610955 (46 worldwide citation)

A phase-locked loop (PLL) circuit which receives a signal at a reference frequency to generate a spread spectrum clock signal. A first divider circuit in the PLL and connected to the PLL input terminal generates an output signal at the reference frequency divided by a first variable integer M. A sec ...


2
Alireza S Kaviani: Method of and circuit for generating a spread spectrum clock signal. Xilinx, John J King, September 9, 2014: US08831064 (2 worldwide citation)

A method of generating a spread spectrum clock signal in an integrated circuit, the method comprising providing a programmable digital clock generator in programmable logic of the integrated circuit, coupling a user-programmable control signal to the programmable clock generator to control the frequ ...


3
Chia Ping Chen, Chin Yang Chen: Spread spectrum clock generator and method of generating spread spectrum clock. Elite Semiconductor Memory Technology, Duane Morris, July 15, 2008: US07400696 (2 worldwide citation)

A clock circuit for generating a spread spectrum clock signal with reduced amplitude electromagnetic interference (EMI) spectral components is provided where the clock circuit includes a delay line circuit, the delay line circuit providing a spread spectrum clock signal from a reference clock signal ...


4
Paul D Ta, Wei Wang, Alvin Wang, Peter D Bradshaw: Spread spectrum clock generator and method. Intersil Americas, Fogg & Powers, October 22, 2013: US08565284 (1 worldwide citation)

A spread spectrum clock signal generator and an accompanying method provide a spread spectrum clock signal of a reduced electromagnetic interference. The spread spectrum clock signal generator includes (a) a state machine, which maintains a current state of the spread spectrum clock signal generator ...


5
Robert A Abraham, Scott R Weaver: Circuit for generating spread spectrum clock. Avago Technologies General IP, January 23, 2007: US07167059 (1 worldwide citation)

Circuit for generating a spread spectrum clock (CGSSC) that employs a mechanism to modulate the input voltage (V_ctrl) to the VCO to achieve dithering. The CGSSC includes a voltage controller oscillator (VCO) that generates an output signal (F_out). The VCO includes an input coupled to a voltage con ...


6
Chen Chia Ping, Chen Chin Yang: Spread spectrum clock generator and method of generating spread spectrum clock. Elite Semiconductor Memory Technology, March 16, 2006: TW200610290 (1 worldwide citation)

A clock circuit for generating a spread spectrum clock signal with reduced amplitude electromagnetic interference (EMI) spectral components is provided where the clock circuit includes a delay line circuit, the delay line circuit providing a spread spectrum clock signal from a reference clock signal ...


7
Chen Chia Ping, Chen Chin Yang: Spread spectrum clock generator and method of generating spread spectrum clock. Elite Semiconductor Memory Technology, October 11, 2006: TWI264186 (1 worldwide citation)

A clock circuit for generating a spread spectrum clock signal with reduced amplitude electromagnetic interference (EMI) spectral components is provided where the clock circuit includes a delay line circuit, the delay line circuit providing a spread spectrum clock signal from a reference clock signal ...


8
Abraham Robert A, Weaver Scott R: Circuit for generating spread spectrum clock. Agilent Technol, October 27, 2005: JP2005-302012 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a circuit for generating a spread spectrum clock for preventing step-out even when a complicated analogue circuit is used.SOLUTION: The circuit for generating the spread spectrum clock (CGSCC) 200 conducts dithering using a means 260 for modulating an input voltage ( ...


9
Chia Ping Chen, Chin Yang Chen: Spread spectrum clock generator and method of generating spread spectrum clock. Elite Semiconductor Memory Technology, Duane Morris, December 25, 2007: US07313161

A clock circuit for generating a spread spectrum clock signal with reduced amplitude electromagnetic interference (EMI) spectral components is provided where the clock circuit includes a delay line circuit, the delay line circuit providing a spread spectrum clock signal from a reference clock signal ...


10
Paul D Ta, Wei Wang, Alvin Wang, Peter D Bradshaw: Spread spectrum clock generator and method. Intersil Americas, Macpherson Kwok Chen & Heid, February 14, 2008: US20080037613-A1

A spread spectrum clock signal generator and an accompanying method provide a spread spectrum clock signal of a reduced electromagnetic interference. The spread spectrum clock signal generator includes (a) a state machine, which maintains a current state of the spread spectrum clock signal generator ...