Patents by Inventor Khosrow Sadeghi

Khosrow Sadeghi 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).

  • Method for oscillating and start up circuit for oscillator
    Patent number: 6011445
    Abstract: The present invention provides a reliable method for oscillating an oscillator having an oscillator output without fail. The method includes steps of detecting whether the oscillator is regularly oscillating, and releasing the oscillator to oscillate when the oscillator is regularly oscillating, and holding the oscillator from oscillating until an enough control voltage is built-up therefor when the oscillator is not regularly oscillating. The present invention also provides a start up circuit for an oscillator having an oscillator output having a first state in a first instance and a second state in a second instance.
    Type: Grant
    Filed: August 1, 1998
    Date of Patent: January 4, 2000
    Assignee: ADMTEK Incorporated
    Inventors: Vaishali Nikhade, Khosrow Sadeghi
  • High bit rate CSMA/CD using multiple pairs
    Patent number: 5664108
    Abstract: In a fast Ethernet, each station is connected to the hub by four unshielded twisted pairs. A first pair is transmit only for the station and receive only for the hub, a second pair is transmit only for the hub and receive only for the station, and the third and fourth pairs are bidirectional. Both the station and the hub use their transmit only and the bidirectional pairs for data transmission and their receive only pair for collision detection.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: September 2, 1997
    Assignee: Standard Microsystems Corporation
    Inventors: Robert Heaton, Nariman Yousefi, Khosrow Sadeghi, David Fischer
  • High bit rate ethernet connection
    Patent number: 5544323
    Abstract: In a fast Ethernet, each station is connected to the hub by four unshielded twisted pairs. A first pair is transmit only for the station and receive only for the hub, a second pair is transmit only for the hub and receive only for the station, and the third and fourth pairs are bidirectional. Both the station and the hub use their transmit only and the bidirectional pairs for data transmission and their receive only pair for collision detection.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: August 6, 1996
    Assignee: Standard Microsystems Corp.
    Inventors: Robert Heaton, Nariman Yousefi, Khosrow Sadeghi, David Fischer