Patents by Inventor Shahid Ali

Shahid Ali 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: 7894226
    Abstract: A scheme for ultra-low power content addressable memory based on a ripple search is disclosed. In one embodiment, a system for content addressable memory (CAM), includes a storage unit for storing a portion of content data, and a match module for comparing the portion of the content data with a respective portion of search data received by the match module. The match module includes a first static logic gate associated with a first half of the storage unit storing a sub-portion of the portion of the content data, and a second static logic gate associated with a second half of the storage unit. The first static logic gate forwards a signal for disabling the second static logic gate if the sub-portion of the portion of the content data does not match with a respective sub-portion of the portion of the search data.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: February 22, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Shahid Ali, Sharad Gupta, Sunil Kumar Misra
  • Publication number: 20110018602
    Abstract: Edge-sensitive Feedback-controlled pulse generator. A circuit includes a pulse generating circuit responsive to a desired transition in an input signal to initiate an output pulse. The circuit also includes a delay circuit responsive to the output pulse to generate a feedback signal. Further, the circuit includes a first latch that renders the pulse generating circuit unresponsive to any change in the input signal until the feedback signal has been generated, a switch responsive to the feedback signal to complete the output pulse, a second latch responsive to a change in the input signal after the feedback signal has been generated to render the pulse generating circuit responsive to a subsequent occurrence of the desired transition in the input signal to initiate the output pulse again, and a third latch responsive to the change in the input signal after the feedback signal has been generated.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 27, 2011
    Applicant: Texas Instruments Incorporated
    Inventors: Shahid ALI, Sharad Gupta, Kundapur Sujan Manohar
  • Patent number: 7750717
    Abstract: A method, system, and apparatus to a novel single supply level shifter circuit for multi-voltage designs, capable of up/down shifting are disclosed. In one embodiment, a system includes a first circuit, a second circuit, a voltage source with an output voltage equal to a voltage value of the second circuit, a level shifter circuit coupled with both an output of the first circuit and an output of the voltage source and wherein the level shifter circuit is used to convert a voltage value of a signal from the first circuit to the voltage value of the second circuit, and a capacitor loop circuit associated with the first circuit, the level shifter circuit and the voltage source and configured with a capacitor to charge from at least one of a first circuit output voltage.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: July 6, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Shahid Ali, Sujan Manohar
  • Publication number: 20100124089
    Abstract: Single-ended sense amplifier circuit. An example of the sense amplifier circuit includes an inverter coupled to a bit line to read a bit cell. The sense amplifier circuit also includes a first circuit responsive to a control signal to charge the bit line for a predefined time. Further, the sense amplifier circuit includes a second circuit coupled to the bit line and responsive to a read 1 operation to retain voltage of the bit line above a first threshold to render the inverter to read 1 from the bit cell.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 20, 2010
    Applicant: Texas Instruments Incorporated
    Inventors: Shahid Ali, Raviprakash Suryanarayana Rao
  • Publication number: 20100019825
    Abstract: A method, system, and apparatus to a novel single supply level shifter circuit for multi-voltage designs, capable of up/down shifting are disclosed. In one embodiment, a system includes a first circuit, a second circuit, a voltage source with an output voltage equal to a voltage value of the second circuit, a level shifter circuit coupled with both an output of the first circuit and an output of the voltage source and wherein the level shifter circuit is used to convert a voltage value of a signal from the first circuit to the voltage value of the second circuit, and a capacitor loop circuit associated with the first circuit, the level shifter circuit and the voltage source and configured with a capacitor to charge from at least one of a first circuit output voltage.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Inventors: Shahid Ali, Sujan Manohar
  • Publication number: 20090290400
    Abstract: A scheme for bit cell designs for ternary content addressable memory for comparing search data with content data is disclosed. In one embodiment, a system for comparing search data with content data stored in a ternary content addressable memory (TCAM) unit, includes a first static logic gate for comparing a first content data with a first search data, and a second static logic gate coupled to the first static logic gate for comparing a second content data with a second search data. The content data comprises the first content data and the second content data and the search data comprises the first search data and the second search data. The first static logic gate forwards a signal for disabling the second static logic gate if the first content data does not match with the first search data.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 26, 2009
    Inventors: SHAHID ALI, Sharad Gupta, Sinil Kumar Misra
  • Publication number: 20090290399
    Abstract: A scheme for ultra-low power content addressable memory based on a ripple search is disclosed. In one embodiment, a system for content addressable memory (CAM), includes a storage unit for storing a portion of content data, and a match module for comparing the portion of the content data with a respective portion of search data received by the match module. The match module includes a first static logic gate associated with a first half of the storage unit storing a sub-portion of the portion of the content data, and a second static logic gate associated with a second half of the storage unit. The first static logic gate forwards a signal for disabling the second static logic gate if the sub-portion of the portion of the content data does not match with a respective sub-portion of the portion of the search data.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 26, 2009
    Inventors: SHAHID ALI, Sharad Gupta, Sunil Kumar Misra
  • Patent number: 7594735
    Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: September 29, 2009
    Assignee: Pelican Products, Inc.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Publication number: 20090218961
    Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Application
    Filed: May 12, 2009
    Publication date: September 3, 2009
    Applicant: PELICAN PRODUCTS, INC.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Publication number: 20090146572
    Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 11, 2009
    Applicant: PELICAN PRODUCTS, INC.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Patent number: 7511552
    Abstract: A method, apparatus and/or system of a level shifter circuit having a structure to reduce fall and rise path delay is disclosed. In one embodiment, a level shifter circuit comprise a first set of sequentially coupled pull-up and pull-down sub-circuits cross coupled to a second set of sequentially pull-up and pull-down sub-circuits to generate a positive feedback loop; an output node coupled to a shared node between the first pull-up and pull-down sub-circuits through an output inverter; a pull-up NMOS transistor with a gate contact coupled to the input of the second set, a source contact coupled to an input of the output inverter and a drain contact coupled to the output voltage of the level shifter circuit; and a pull-down NMOS transistor with a gate contact coupled to the input of the second set, a drain contact coupled to an output of the output inverter and a source contact coupled to a ground.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 31, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: Shahid Ali, Satheesh Balasubramanian, Sujan Manobar
  • Patent number: 7503671
    Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: March 17, 2009
    Assignee: Pelican Products, Inc.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Patent number: 7441920
    Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: October 28, 2008
    Assignee: Pelican Products, Inc.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Patent number: 7393120
    Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 1, 2008
    Assignee: Pelican Products, Inc.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Patent number: 7352228
    Abstract: A method and/or a system of control signal synchronization of a scannable storage circuit is disclosed. In one embodiment, a system includes a first circuit to operate based on a first voltage of a first power supply, a second circuit to operate based on a second voltage of a second power supply, a level shifter circuit between the first circuit and the second circuit to translate between the first voltage of the first power supply and the second voltage of the second power supply, and a n-channel metal-oxide semiconductor field-effect transistor (nMOSFET) having a gate input of the second voltage and serially coupled in a fall path of the level shifter circuit to increase a rate of a capacitive discharge such that the rate of a capacitive discharge charge is substantially equal to a rate of a capacitive charge (e.g., the fall delay may also increase a bit because of an extra transistor).
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: April 1, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Shahid Ali, Sujan Manohar, Satheesh Balasubramanian
  • Publication number: 20080013308
    Abstract: A flashlight includes a battery and a circuit for operation to signal to a user that the battery voltage is at selected voltage or power level. There can be two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 17, 2008
    Applicant: PELICAN PRODUCTS, INC.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Publication number: 20080013307
    Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 17, 2008
    Applicant: PELICAN PRODUCTS, INC.
    Inventors: Sukwon Greg Kang, Kiem T. Lee, Shahid Ali
  • Publication number: 20080013305
    Abstract: A flashlight includes a battery and two switches each being for operating a light emitting source of the flashlight. The switches are linked 3-way switches and have momentary-on functionality. There are contacts on an intermediate portion of the barrel for contact with a recharging device. There is a spring member between the switching device above the barrel and the top of the battery and a spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives part of the first switch. The second switch is located in part of the tail cap of the flashlight.
    Type: Application
    Filed: September 25, 2007
    Publication date: January 17, 2008
    Applicant: PELICAN PRODUCTS, INC.
    Inventors: Sukwon Kang, Kiem Lee, Shahid Ali
  • Publication number: 20070290735
    Abstract: A method, apparatus and/or system of a level shifter circuit having a structure to reduce fall and rise path delay is disclosed. In one embodiment, a level shifter circuit comprise a first set of sequentially coupled pull-up and pull-down sub-circuits cross coupled to a second set of sequentially pull-up and pull-down sub-circuits to generate a positive feedback loop; an output node coupled to a shared node between the first pull-up and pull-down sub-circuits through an output inverter; a pull-up NMOS transistor with a gate contact coupled to the input of the second set, a source contact coupled to an input of the output inverter and a drain contact coupled to the output voltage of the level shifter circuit; and a pull-down NMOS transistor with a gate contact coupled to the input of the second set, a drain contact coupled to an output of the output inverter and a source contact coupled to a ground.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Inventors: Shahid Ali, Satheesh Balasubramanian, Sujan Manobar
  • Publication number: 20070257722
    Abstract: A method and/or a system of control signal synchronization of a scannable storage circuit is disclosed. In one embodiment, a system includes a first circuit to operate based on a first voltage of a first power supply, a second circuit to operate based on a second voltage of a second power supply, a level shifter circuit between the first circuit and the second circuit to translate between the first voltage of the first power supply and the second voltage of the second power supply, and a n-channel metal-oxide semiconductor field-effect transistor (nMOSFET) having a gate input of the second voltage and serially coupled in a fall path of the level shifter circuit to increase a rate of a capacitive discharge such that the rate of a capacitive discharge charge is substantially equal to a rate of a capacitive charge (e.g., the fall delay may also increase a bit because of an extra transistor).
    Type: Application
    Filed: May 3, 2006
    Publication date: November 8, 2007
    Inventors: Shahid Ali, Sujan Manohar, Satheesh Balasubramanian