Patents by Inventor Padmanabha R. Rao

Padmanabha R. Rao 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).

  • Publication number: 20040259575
    Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.
    Type: Application
    Filed: August 3, 2004
    Publication date: December 23, 2004
    Applicant: Polaris Wireless, Inc.
    Inventors: Luis Perez-Breva, Chee-Yee Chong, Robert M. Dressler, Padmanabha R. Rao, Paolo Siccardo, David S. Spain
  • Patent number: 6782265
    Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: August 24, 2004
    Assignee: Polaris Wireless, Inc.
    Inventors: Luis Perez-Breva, Chee-Yee Chong, Robert M. Dressler, Padmanabha R. Rao, Paolo Siccardo, David S. Spain
  • Patent number: 6591112
    Abstract: Method and a system for establishing a communication channel between a first communication device, or alternatively, a communication network operator, and one or more second communication devices. The identity of the one or more second communication devices is not pre-determined by the first communication device (or the communication network operator). Instead, the identity of which one or more of the second communication devices connects to the first communication device (or the network operator) is determined by the operation of one or more filters transmitted by the first communication device (or the network operator) on certain data that are both transmitted by the first communication device (or the network operator) as well as measured locally at each of the second communication devices.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: July 8, 2003
    Assignee: PPM, Inc.
    Inventors: Paolo L. Siccardo, Padmanabha R. Rao
  • Publication number: 20030008668
    Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.
    Type: Application
    Filed: April 22, 2002
    Publication date: January 9, 2003
    Applicant: PPM, Inc.
    Inventors: Luis Perez-Breva, Chee-Yee Chong, Robert M. Dressler, Padmanabha R. Rao, Paolo Siccardo, David S. Spain
  • Patent number: 6449486
    Abstract: Technique for determining the location of a mobile unit in a wireless communication system and presenting it to a remote party. In a scenario with first and second position estimates, the first position estimate is presented within a first predetermined time interval of call setup between the mobile unit and the remote party, and, if the second position estimate is available for presentation to the remote party, the second position estimate is presented within a second predetermined time interval after presentation of the first position estimate. Else, status information on availability of the second position estimate is presented within the second predetermined time interval.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: September 10, 2002
    Assignee: Polaris Wireless, Inc.
    Inventor: Padmanabha R. Rao
  • Patent number: 6393294
    Abstract: A method for determining the location of a mobile unit (MU) in a wireless communication system and presenting it to a remote party. The location of a remote MU is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on-line.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 21, 2002
    Assignee: Polaris Wireless, Inc.
    Inventors: Luis Perez-Breva, Chee-Yee Chong, Robert M. Dressler, Padmanabha R. Rao, Paolo Siccardo, David S. Spain
  • Patent number: 6269246
    Abstract: The location of a mobile unit (MU) in a wireless communication system is determined by comparing a snapshot of a predefined portion of the radio-frequency (RF) spectrum taken by the MU to a reference database containing multiple snapshots taken at various locations. The result of the comparison is used to determine if the MU is at a specific location. The comparison may be made in the MU, or at some other location situated remotely from the MU. In the latter case, sufficient information regarding the captured fingerprint is transmitted from the MU to the remote location. The database may be pre-compiled or generated on the fly.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: July 31, 2001
    Assignee: PPM, Inc.
    Inventors: Padmanabha R. Rao, Paolo L. Siccardo
  • Patent number: 6115605
    Abstract: Method and a system for establishing a communication channel between a first communication device, or alternatively, a communication network operator, and one or more second communication devices. The identity of the one or more second communication devices is not pre-determined by the first communication device (or the communication network operator). Instead, the identity of which one or more of the second communication devices connects to the first communication device (or the network operator) is determined by the operation of one or more filters transmitted by the first communication device (or the network operator) on certain data that are both transmitted by the first communication device (or the network operator) as well as measured locally at each of the second communication devices.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: September 5, 2000
    Assignee: PPM, Inc.
    Inventors: Paolo L. Siccardo, Padmanabha R. Rao