Low voltage differential dual receiver

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6480022
APP PUB NO 20020017920A1
SERIAL NO

09965210

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A low-voltage differential dual receiver for a SCSI bus uses a symmetrical driver by doing without a termination bias voltage. The data phase and protocol phase of SCSI communication are separated by using two receivers and optimizing each receiver for its particular function. A high-speed receiver is used when transmitting data at high-speeds, and a lower performance, low-speed receiver is used for other SCSI phases. A built-in offset allows the low-speed receiver to operate correctly during bus arbitration. The built-in offset in the low-speed receiver takes the place of the termination bias voltage in a traditional SCSI bus and is implemented in a variety of ways.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ADAPTEC, INC.MILPITAS, CA218
RPX CORPORATIONSAN FRANCISCO, CA2329

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bridgewater, Jr Walter Francis San Jose, CA 6 168

Cited Art Landscape

Patent Info (Count) # Cites Year
 
APPLE INC. (1)
* 5325355 Method and apparatus for implementing a common mode level shift in a bus transceiver incorporating a high speed binary data transfer mode with a ternary control transfer mode 29 1993
 
SCIENCE & TECHNOLOGY CORPORATION @ UNM (1)
* 6362687 Apparatus for and method of controlling amplifier output offset using body biasing in MOS transistors 17 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LATTICE SEMICONDUCTOR CORPORATION (1)
* 9525571 Calibration of single-ended high-speed interfaces 0 2014
 
MONOLITHIC POWER SYSTEMS, INC. (1)
* 2005/0052,233 Controlled offset amplifier 0 2003
* Cited By Examiner