US Patent Application No: 2012/0169,412

Number of patents in Portfolio can not be more than 2000

FAST POWER-ON BIAS CIRCUIT

ALSO PUBLISHED AS: 8618869

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Conventional bias circuits exhibit a number of limitations, including the time required to power-up a bias circuit following a low-power state. Large current surges in the supply network induce ringing, further complicating a power-up process. Example embodiments reduce power-up time and minimize current surges in the supply by selectively charging and discharging capacitance to the circuit during power-up and power-down of the bias circuit.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
RAMBUS INC.LOS ALTOS, CA1144

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dettloff, Wayne - 6 8
Leibowitz, Brian San Francisco, CA 22 75
Luo, Lei - 36 36
Venkatesan, Pravin Kumar - 4 1
Wilson, John Bristol, GB 109 373
Zerbe, Jared Woodside, CA 50 160

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AGERE SYSTEMS INC. (1)
* 6,285,223 Power-up circuit for analog circuits 9 2000
 
ANALOG DEVICES, INC. (1)
* 2012/0007,660 Bias Current Generator 2 2010
 
APPLE INC. (1)
* 2007/0001,747 Rapid supply voltage ramp 1 2005
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
* 7,102,419 Bias generator that automatically adjusts its slew rate 7 2005
 
INTEL MOBILE COMMUNICATIONS GMBH (1)
* 7,944,381 Compensation of nonlinearity of single ended digital to analog converters 3 2010
 
KABUSHIKI KAISHA TOSHIBA (1)
* 7,763,991 Voltage generating circuit 1 2008
 
LINEAR TECHNOLOGY CORPORATION (1)
* 8,324,957 Capacitively coupled switched current source 1 2010
 
MICRON TECHNOLOGY, INC. (1)
* 6,909,264 Voltage regulator with very quick response 12 2003
 
MONOLITHIC POWER SYSTEMS, INC. (1)
* 8,049,551 Charge pump for switched capacitor circuits with slew-rate control of in-rush current 2 2008
 
RENESAS ELECTRONICS CORPORATION (1)
* 6,201,380 Constant current/constant voltage generation circuit with reduced noise upon switching of operation mode 10 2000
 
SONY CORPORATION (1)
* 8,274,416 DA converter, solid-state imaging device, and camera system 2 2010
 
SPANSION LLC (1)
* 6,535,424 Voltage boost circuit using supply voltage detection to compensate for supply voltage variations in read mode voltage 26 2001
 
UNISYS CORPORATION (1)
* 5,506,521 ECL driver with adjustable rise and fall times, and method therefor 6 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ARM LIMITED (1)
* 8,648,654 Integrated circuit and method for generating a layout of such an integrated circuit 0 2012
* Cited By Examiner