Patents by Inventor Kalpendu Ranjitrai Shastri

Kalpendu Ranjitrai Shastri 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).

  • Laser driver with temperature sensor on an integrated circuit
    Patent number: 5844928
    Abstract: There is disclosed a laser driver or transmitter in which a drive current is generated by monitoring the temperature of an integrated circuit that generates drive current for the laser. The temperature sensed at the integrated circuit is transformed to a corresponding temperature at the laser. A drive current is generated for the laser that is dependent on the corresponding temperature at the laser.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: December 1, 1998
    Assignee: Lucent Technologies, Inc.
    Inventors: Kalpendu Ranjitrai Shastri, David Alan Snyder
  • Clock recovery circuit
    Patent number: 5757872
    Abstract: A clock recovery circuit is coupled to an elastic storage circuit such as a FIFO circuit. More specifically, a first input of the elastic storage circuit is electrically connected to an output of the clock recovery circuit. A second input for accepts a data signal representing an input data stream from a communications medium. A third input accepts a local clock signal. The resultant circuit may be used in receiver's for communications systems to help alleviate the problems of frequency mismatch and jitter.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: May 26, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: Mihai Banu, Alfred Earl Dunlop, Wilhelm Carl Fischer, Thaddeus John Gabara, Kalpendu Ranjitrai Shastri