Patents by Inventor Takahito Yoshizawa

Takahito Yoshizawa 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: 7929860
    Abstract: A fiber-optic communications interface (110) and method of operation that operates with a paired fiber-optic communications interface (112) in a redundant communications termination point (101). The fiber-optic communications interface (110) has a paired card interface (122) that exchanges at least a first subset of status data between a local bearer processor (124) and a paired bearer processor (144) located within a different card cage (112). The local bearer processor (124) processes bearer data channels communicating with a remote site (102) through a remote site fiber-optic line (106). A local data interface (128) exchanges data contained in the bearer data channels between the local bearer processor (124) and a local user data network (114). The local data interface (128) also exchanges at least a second subset of the status data with the paired bearer processor (144) through the local user data network (114).
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: April 19, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Karl E. Miller, Gregory C. Ladden, Takahito Yoshizawa
  • Patent number: 7570581
    Abstract: A router (101, 103, 105) includes a communication interface, for receiving a packet (107a-107f), when connected to a communication network. The router (101, 103, 105), for example with a processor, for calculating an alternate path for routing a packet (107a-107f) received from the communication interface while awaiting a determination that a pre-determined path for the packet has failed. According to one or more embodiments, the router (101, 103, 105) can facilitate calculating an alternate path for routing the packet (107a-107f) received from the communication interface while awaiting a first determination that a pre-determined path for the packet has failed and/or a second determination that the pre-determined path is likely to fail.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: August 4, 2009
    Assignee: Motorola, Inc.
    Inventor: Takahito Yoshizawa
  • Publication number: 20090170524
    Abstract: The invention concerns a method at a base station device for performing service admission control, the base station device comprising an interface to a cellular network, and an interface to connect to a broadband device, the base station device being adapted to provide service access to devices of the cellular network, the service being provided through the broadband network. To this end the method comprises the steps of receiving a service admission request from a device of the cellular network, sending a resource reservation request to the broadband device for enabling said service on the broadband network, receiving a resource reservation response from the broadband device and responding to the device of the cellular network on the availability of the service, the availability depending on the service admission response received from the broadband device.
    Type: Application
    Filed: December 15, 2008
    Publication date: July 2, 2009
    Inventor: Takahito Yoshizawa
  • Publication number: 20090097842
    Abstract: A fiber-optic communications interface (110) and method of operation that operates with a paired fiber-optic communications interface (112) in a redundant communications termination point (101). The fiber-optic communications interface (110) has a paired card interface (122) that exchanges at least a first subset of status data between a local bearer processor (124) and a paired bearer processor (144) located within a different card cage (112). The local bearer processor (124) processes bearer data channels communicating with a remote site (102) through a remote site fiber-optic line (106). A local data interface (128) exchanges data contained in the bearer data channels between the local bearer processor (124) and a local user data network (114). The local data interface (128) also exchanges at least a second subset of the status data with the paired bearer processor (144) through the local user data network (114).
    Type: Application
    Filed: October 15, 2007
    Publication date: April 16, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Karl E. Miller, Gregory C. Ladden, Takahito Yoshizawa
  • Publication number: 20070248092
    Abstract: A plurality of data messages is received. Each of the data messages has an associated source address and a destination address. A data link is selected to transfer each of the data messages based upon the source address and destination address of the data message. The data link is selected from amongst a plurality of data links. The selecting purposefully causes a substantially uniform distribution of the plurality of data messages to be made across the plurality of data links with respect to a given period of time.
    Type: Application
    Filed: April 24, 2006
    Publication date: October 25, 2007
    Inventor: Takahito Yoshizawa
  • Publication number: 20060062199
    Abstract: A router (101, 103, 105) includes a communication interface, for receiving a packet (107a-107f), when connected to a communication network. The router (101, 103, 105), for example with a processor, for calculating an alternate path for routing a packet (107a-107f) received from the communication interface while awaiting a determination that a pre-determined path for the packet has failed. According to one or more embodiments, the router (101, 103, 105) can facilitate calculating an alternate path for routing the packet (107a-107f) received from the communication interface while awaiting a first determination that a pre-determined path for the packet has failed and/or a second determination that the pre-determined path is likely to fail.
    Type: Application
    Filed: September 23, 2004
    Publication date: March 23, 2006
    Inventor: Takahito Yoshizawa