Patents by Inventor Vafa Rakshani

Vafa Rakshani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8949049
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: February 3, 2015
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20080033670
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20070191007
    Abstract: Certain aspects of a method and system for handling signals in a communication system are disclosed. Aspects of one method may include processing, within a single chip, any one of a plurality of wireless access communication protocols by any one of a plurality of on-chip baseband processors. None of the on-chip baseband processors is a dedicated processor that is configured to handle only a single wireless access communication protocol. The plurality of wireless access communication protocols may comprise WCDMA, HSDPA, GSM, GPRS, and EDGE. Any one of the plurality of on-chip baseband processors may be configured to process any one of the plurality of wireless access communication protocols.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 16, 2007
    Inventors: Claude Hayek, Lawrence Madar, Nelson Sollenberger, Frederic Hayem, Vafa Rakshani
  • Patent number: 7254495
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: August 7, 2007
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20070131966
    Abstract: A memory cell for reducing the cost and complexity of modifying a revision identifier (ID) or default register values associated with an integrated circuit (IC) chip, and a method for manufacturing the same. The cell, which may be termed a “Meta-Memory Cell” (MMCEL), is implemented on metal layers only and utilizes a dual parallel metal ladder structure that traverses and covers each metal and via layer from the bottom to the top of the metal layer structure of the chip. One of the metal ladders is connected to a power supply at the bottom metal layer, corresponding to a logic 1, and another metal ladder is connected to ground at the bottom metal layer, corresponding to a logic 0. The output of the MMCEL can thus be inverted at any metal or via layer and can be inverted as often as required. Significant cost savings are achieved because a revision ID or default register bits may be modified by altering only those metal layers where design changes are necessary.
    Type: Application
    Filed: February 2, 2007
    Publication date: June 14, 2007
    Applicant: Broadcom Corporation
    Inventors: Manolito Catalasan, Vafa Rakshani, Edmund Spittles, Tim Sippel, Richard Unda
  • Patent number: 7174259
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: February 6, 2007
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20060258290
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: July 25, 2006
    Publication date: November 16, 2006
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 7082372
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: July 25, 2006
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 7054779
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: May 30, 2006
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20060034376
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 16, 2006
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 6954708
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: October 11, 2005
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20050213637
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: May 10, 2005
    Publication date: September 29, 2005
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20050110136
    Abstract: Multi-concentric pad (MCP) arrangements provide for increased pad densities on integrated circuits. The multi-concentric pad (MCP) configuration includes a first set of input output (IO) pads and a second set of IO pads, both disposed on an integrated circuit die. Each IO pad in said first set and said second set of IO pads includes a bond pad for receiving a bond wire connection, and an IO circuit coupled to the bond pad. The IO circuits provide an interface between a signal received at the corresponding bond pad and a core circuit disposed on said IC die. The first set of IO pads are arranged closer to the perimeter of the IC die than the second set of IO pads. Furthermore, the second set of IO pads are arranged so that each IO circuit in the second set of IO pads is closer to the center of the IC die than a corresponding IO circuit in the first set of IO pads.
    Type: Application
    Filed: December 30, 2004
    Publication date: May 26, 2005
    Applicant: Broadcom Corporation
    Inventor: Vafa Rakshani
  • Publication number: 20040064275
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: September 24, 2003
    Publication date: April 1, 2004
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20040049359
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: May 27, 2003
    Publication date: March 11, 2004
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 6643595
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: November 4, 2003
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20030154038
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector, output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: April 17, 2002
    Publication date: August 14, 2003
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 6571181
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: May 27, 2003
    Assignee: Broadcom Corporation
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Publication number: 20030033098
    Abstract: A system and technique for detecting a device that requires power is implemented with a power detection station. The power detection system includes a detector having an output and a return which are coupled together by the device when the device requires power. The detector includes a word generator for generating test pulses for transmission to the device via the detector output, and a comparator for comparing the detector output with the detector return. The power detection station has a wide variety of applications, including by way of example, a switch or hub.
    Type: Application
    Filed: April 17, 2002
    Publication date: February 13, 2003
    Inventors: Vafa Rakshani, Nariman Yousefi
  • Patent number: 5956196
    Abstract: A disk drive having an embedded servo disk format preferably having a fixed-number of radial servo sample wedges per track, in which data blocks are located independently of the servo sample wedge locations of any particular track, and can be split around servo sample wedges. Thus, a fraction of a data block, or more than one data block, can be written between consecutive servo sample wedges, beginning almost anywhere in a data wedge. Each data sector has an associated identification (ID) field that includes at least one segment descriptor. Each segment descriptor describes the data segments into which a data block can be split. Provision is made for as many segment descriptors as there can be data segments for a data block. In general, a segment descriptor is a multi-bit digital signal that defines the absolute or relative location of split data segments (or, alternatively, the absolute or relative length of split data segments, from which the location can be determined).
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 21, 1999
    Assignee: Western Digital Corporation
    Inventors: Richard W. Hull, Marc E. Acosta, Carl Bonke, Vafa Rakshani, Ronald E. Wilson