Patents by Inventor Ravikumar Jeevarathinam

Ravikumar Jeevarathinam 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).

  • Wireless communication system and lift system having the same
    Patent number: 8014718
    Abstract: A wireless communication system for providing a radio frequency (RF) link between an enclosed environment that is at least substantially shielded from RF signals, and the outside of the enclosed environment is disclosed. The wireless communication system includes at least one gateway antenna arranged at an entrance point of the enclosed environment. The gateway antenna radiates downlink RF signals into and receives uplink RF signals from, the enclosed environment, respectively. The system also includes at least one auxiliary repeater arranged within the enclosed environment, a donor antenna and a server antenna. Both the donor and the server antenna are coupled to the auxiliary repeater. The auxiliary repeater relays the downlink and the uplink RF signals using the donor antenna and the server antenna. A lift system including the wireless communication system is also disclosed.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: September 6, 2011
    Assignee: Consistel Pte Ltd.
    Inventors: Masoud Bassiri, Ravikumar Jeevarathinam
  • WIRELESS COMMUNICATION SYSTEM AND LIFT SYSTEM HAVING THE SAME
    Publication number: 20080261520
    Abstract: A wireless communication system for providing a radio frequency (RF) link between an enclosed environment that is at least substantially shielded from RF signals, and the outside of the enclosed environment is disclosed. The wireless communication system includes at least one gateway antenna arranged at an entrance point of the enclosed environment. The gateway antenna radiates downlink RF signals into and receives uplink RF signals from, the enclosed environment, respectively. The system also includes at least one auxiliary repeater arranged within the enclosed environment, a donor antenna and a server antenna. Both the donor and the server antenna are coupled to the auxiliary repeater. The auxiliary repeater relays the downlink and the uplink RF signals using the donor antenna and the server antenna. A lift system including the wireless communication system is also disclosed.
    Type: Application
    Filed: May 16, 2008
    Publication date: October 23, 2008
    Applicant: Consistel Pte Ltd.
    Inventors: Masoud Bassiri, Ravikumar Jeevarathinam
  • Wireless communication system and lift system having the same
    Patent number: 7376389
    Abstract: A wireless communication system for providing a radio frequency (RF) link between an enclosed environment that is at least substantially shielded from RF signals, and the outside of the enclosed environment is disclosed. The wireless communication system includes at least one gateway antenna arranged at an entrance point of the enclosed environment. The gateway antenna radiates downlink RF signals into and receives uplink RF signals from, the enclosed environment, respectively. The system also includes at least one auxiliary repeater arranged within the enclosed environment, a donor antenna and a server antenna. Both the donor and the server antenna are coupled to the auxiliary repeater. The auxiliary repeater relays the downlink and the uplink RF signals using the donor antenna and the server antenna. A lift system including the wireless communication system is also disclosed.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: May 20, 2008
    Assignee: Consistel Pte Ltd.
    Inventors: Masoud Bassiri, Ravikumar Jeevarathinam
  • Wireless communication system and lift system having the same
    Publication number: 20060046642
    Abstract: A wireless communication system for providing a radio frequency (RF) link between an enclosed environment that is at least substantially shielded from RF signals, and the outside of the enclosed environment is disclosed. The wireless communication system includes at least one gateway antenna arranged at an entrance point of the enclosed environment. The gateway antenna radiates downlink RF signals into and receives uplink RF signals from, the enclosed environment, respectively. The system also includes at least one auxiliary repeater arranged within the enclosed environment, a donor antenna and a server antenna. Both the donor and the server antenna are coupled to the auxiliary repeater. The auxiliary repeater relays the downlink and the uplink RF signals using the donor antenna and the server antenna. A lift system including the wireless communication system is also disclosed.
    Type: Application
    Filed: November 28, 2003
    Publication date: March 2, 2006
    Applicant: Consistel Pte Ltd.
    Inventors: Masoud Bassiri, Ravikumar Jeevarathinam