Variable phase shifting clock generator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6259295
SERIAL NO

09340815

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus is disclosed for generating, based upon user input, clock signals which are delayed by sub-delays which are of a size that is smaller than the smallest achievable delay of a conventional delay element. A user can selectively add one or more sub-delays by providing control inputs which define the desired number of sub-delays to be added.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AGERE SYSTEMS GUARDIAN CORP.MURRAY HILL, NJ723
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.SINGAPORE, SG22265
LUCENT TECHNOLOGIES INC.MURRAY HILL, NJ6819

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kriz, John C Palmerton, PA 27 259
Pianka, Juergen Bloomfield Towwship, MI 7 91

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Alcatel Network Systems, Inc. (1)
5689530 Data recovery circuit with large retime margin 21 1995
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
5107264 Digital frequency multiplication and data serialization circuits 29 1990
5838205 Variable-speed phase-locked loop system with on-the-fly switching and method therefor 16 1997
 
Advanced Communications Devices Corporation (1)
5864250 Non-servo clock and data recovery circuit and method 29 1997
 
OKI AMERICA, INC. (1)
5838204 Phase locked loop with multiple, programmable, operating frequencies, and an efficient phase locked loop layout method 17 1996
 
PRINCETON TECHNOLOGY CORPORATION (1)
* 6005447 Method and device for adjusting the frequency of oscillator built in an integrated circuit 6 1998
 
SUPER INTERCONNECT TECHNOLOGIES LLC (1)
5815041 High-speed and high-precision phase locked loop having phase detector with dynamic logic structure 21 1996
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5436939 Multi-phase clock generator and multiplier 16 1994
 
SONY CORPORATION (1)
4626911 Digital data recovery circuit 4 1984
 
VLSI TECHNOLOGY, INC. (1)
5786732 Phase locked loop circuitry including a multiple frequency output voltage controlled oscillator circuit 10 1996
 
STMICROELECTRONICS SA (1)
* 5633608 Digital delay line 20 1994
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
SLT LOGIC LLC (1)
7580495 Mixer-based phase control 47 2005
 
ROUND ROCK RESEARCH, LLC (2)
* 6845458 System and method of operation of DLL and PLL to provide tight locking with large range, and dynamic tracking of PVT variations using interleaved delay lines 12 2003
* 2004/0119,512 Interleaved delay line for phase locked and delay locked loops 1 2003
 
MICRON TECHNOLOGY, INC. (6)
* 7197659 Global I/O timing adjustment using calibrated delay elements 1 2001
* 6714058 Reduced jitter clock generator circuit and method for applying properly phased clock signals to clocked devices 0 2003
* 7057429 Method and apparatus for digital phase generation at high frequencies 5 2004
* 2006/0017,479 METHOD AND APPARATUS FOR DIGITAL PHASE GENERATION AT HIGH FREQUENCIES 1 2004
7274228 Method and apparatus for digital phase generation at high frequencies 8 2006
7557628 Method and apparatus for digital phase generation at high frequencies 1 2007
 
MARVELL INTERNATIONAL LTD. (1)
* 9031181 Method and apparatus for controlling clocking of transceivers in a multi-port networking device 0 2014
 
RENESAS ELECTRONICS CORPORATION (8)
* 6791385 Clock controlling method and circuit 1 2001
* 6621317 Clock controlling method and circuit 20 2002
* 6888387 Clock controlling method and circuit 3 2003
* 6791386 Clock controlling method and circuit with a multi-phase multiplication clock generating circuit 1 2003
7034592 Clock controlling method and circuit 3 2004
* 6965259 Clock controlling method and circuit 2 2004
6900680 Clock controlling method and circuit 0 2004
* 6847243 Clock controlling method and circuit 0 2004
 
GLOBALFOUNDRIES INC. (1)
* 8686776 Phase rotator based on voltage referencing 0 2012
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 6400200 Semiconductor integrated circuit which generates waveforms which are out of phase with each other 5 2001
 
TEXAS INSTRUMENTS INCORPORATED (2)
* 6747504 Controlled rise time output driver 5 2002
* 2003/0117,197 Controlled rise time output driver 1 2002
 
SAMSUNG ELECTRONICS CO., LTD. (1)
* 7586348 Systems, apparatuses and methods for synchronizing clock signals 4 2006
 
SK HYNIX INC. (1)
* 7571337 Integrated circuits and methods with transmit-side data bus deskew 8 2005
* Cited By Examiner