Patents by Inventor Alejandro Holcman

Alejandro Holcman 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).

  • Patent number: 7542451
    Abstract: A network operator identifier is used to uniquely identify each network operator to support international roaming. The network operator identifier includes (1) a Mobile Country Code (MCC) that identifies the country in which a network operator belongs and (2) a Network Operator Code (NOC), which may be a Mobile Network Code (MNC), that distinguishes network operators within a given MCC. Each network operator is assigned a unique combination of MCC and NOC that distinctly identifies the network operator, and the network operator identifier can be stored in a single entry in a preferred roaming list. The base stations of each network operator broadcast the network operator identifier in signaling messages. A mobile station receives a signaling message from a base station, obtains the network operator identifier, searches its preferred roaming list for an entry with the network operator identifier, and determines whether or not the current CDMA network is accessible.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: June 2, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Rotem Cooper, Alejandro Holcman, Andrew T. Hunter, Edward G. Tiedemann, Nobuyuki Uchida, Vera Kripalani
  • Publication number: 20070127425
    Abstract: A method for controlling a wireless terminal operating in a hibernation cycle alternating between a wake mode and a hibernation mode includes communicating with a first wireless network during a first waking period having a first duration, and with a second wireless network during a second waking period following the first waking period. The second waking period is extended to a second duration, greater than the first duration, responsively to detecting that the second wireless network is different from the first wireless network. Network information relating to the second wireless network is received during the second waking period.
    Type: Application
    Filed: August 14, 2006
    Publication date: June 7, 2007
    Inventors: Ron Keidar, Alejandro Holcman, Kirk Burroughs, Liron Manor
  • Publication number: 20060280198
    Abstract: Operating a communication device in a half-duplex mode using only overhead channels; and substantially free running a timing reference obtained during reception to allow a timing reference value to drift during transmission.
    Type: Application
    Filed: February 16, 2006
    Publication date: December 14, 2006
    Inventors: Chong Lee, Alejandro Holcman, Arik Mimran, Jack Wolf, Leonid Sheynblat, Roberto Padovani, Paul Bender, Ramin Rezaiifar, Samir Khazaka