Patents by Inventor Mahmoud Belaid

Mahmoud Belaid 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).

  • Variable gain-bandwidth transimpedance amplifier
    Patent number: 10224887
    Abstract: A transimpedance amplifier (TIA) can include an operational amplifier with a programmable compensation capacitor, such as can be used for compensating first transconductance stage of an operational amplifier circuit that can be used in a TIA configuration. This technique is particularly suitable, for example, for an Optical Time Domain Reflectometer (OTDR) application, which can use variable pulsewidth launch pulses. Based on the pulsewidth of such launch pulses, the bandwidth of an operational amplifier of the TIA can be adjusted, such as to decrease the signal and noise bandwidth when relatively wider pulses are to be used, to improve the noise performance for such wider pulses, and to increase the signal and noise bandwidth when relatively narrower pulses are to be used.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: March 5, 2019
    Assignee: Analog Devices, Inc.
    Inventors: Zoltan Frasch, Mahmoud Belaid
  • VARIABLE GAIN-BANDWIDTH TRANSIMPEDANCE AMPLIFIER
    Publication number: 20190044489
    Abstract: A transimpedance amplifier (TIA) can include an operational amplifier with a programmable compensation capacitor, such as can be used for compensating first transconductance stage of an operational amplifier circuit that can be used in a TIA configuration. This technique is particularly suitable, for example, for an Optical Time Domain Reflectometer (OTDR) application, which can use variable pulsewidth launch pulses. Based on the pulsewidth of such launch pulses, the bandwidth of an operational amplifier of the TIA can be adjusted, such as to decrease the signal and noise bandwidth when relatively wider pulses are to be used, to improve the noise performance for such wider pulses, and to increase the signal and noise bandwidth when relatively narrower pulses are to be used.
    Type: Application
    Filed: August 4, 2017
    Publication date: February 7, 2019
    Inventors: Zoltan Frasch, Mahmoud Belaid