Patents by Inventor Jawaid Ahmad

Jawaid Ahmad 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).

  • Adaptive real-time control of de-emphasis level in a USB 3.0 signal conditioner based on incoming signal frequency range
    Patent number: 9350574
    Abstract: An apparatus comprises a differential equalizer having: a) a first differential input, b) a second differential input, c) a first differential output, and d) a second differential output; a frequency detector coupled to the first and second differential inputs; an amplifier coupled to a first differential output and a second differential output of the differential equalizer; and a logical combiner having a first input coupled to an output of the frequency detector and an output coupled to a control input of the amplifier, wherein the logical combiner can mask at least one received de-emphasis parameter.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: May 24, 2016
    Assignee: TEXAS INTRUMENTS INCORPORATED
    Inventors: Huawen Jin, Jawaid Ahmad, Yaqi Hu
  • Adaptive Real-Time Control of De-Emphasis Level in a USB 3.0 Signal Conditioner Based on Incoming Signal Frequency Range
    Publication number: 20140226705
    Abstract: An apparatus comprises a differential equalizer having: a) a first differential input, b) a second differential input, c) a first differential output, and d) a second differential output; a frequency detector coupled to the first and second differential inputs; an amplifier coupled to a first differential output and a second differential output of the differential equalizer; and a logical combiner having a first input coupled to an output of the frequency detector and an output coupled to a control input of the amplifier, wherein the logical combiner can mask at least one received de-emphasis parameter.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 14, 2014
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Huawen Jin, Jawaid Ahmad, Yaqi Hu
  • Adaptive real-time control of de-emphasis level in a USB 3.0 signal conditioner based on incoming signal frequency range
    Patent number: 8654890
    Abstract: An apparatus comprises a differential equalizer having: a) a first differential input, b) a second differential input, c) a first differential output, and d) a second differential output; a frequency detector coupled to the first and second differential inputs; an amplifier coupled to a first differential output and a second differential output of the differential equalizer; and a logical combiner having a first input coupled to an output of the frequency detector and an output coupled to a control input of the amplifier, wherein the logical combiner can mask at least one received de-emphasis parameter.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: February 18, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Huawen Jin, Jawaid Ahmad, Yaqi Hu
  • Adaptive Real-Time Control of De-Emphasis Level in a USB 3.0 Signal Conditioner Based on Incoming Signal Frequency Range
    Publication number: 20130156088
    Abstract: An apparatus comprises a differential equalizer having: a) a first differential input, b) a second differential input, c) a first differential output, and d) a second differential output; a frequency detector coupled to the first and second differential inputs; an amplifier coupled to a first differential output and a second differential output of the differential equalizer; and a logical combiner having a first input coupled to an output of the frequency detector and an output coupled to a control input of the amplifier, wherein the logical combiner can mask at least one received de-emphasis parameter.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: Texas Instruments Incorporated
    Inventors: Huawen Jin, Jawaid Ahmad, Yaqi Hu
  • Method and apparatus for detecting a cable in a redriver
    Patent number: 7986159
    Abstract: With conventional redrivers used for external Serial Advanced Technology Attachment (eSATA), there is no ability to indicated to a host that an external device (like a hard disk drive) is not present. As a result, power is consumed by a host because of nearly continual transmission of communication reset signals. Here, a redriver has been provided that includes a cable disconnect terminal and circuitry within a controller that is able to detect whether an external device is present. This redriver enables a host to be powered down or placed in a low power mode while also enabling the use an eSATA compliant connector.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: July 26, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Jawaid Ahmad, Matthew D. Rowley