Patents Represented by Attorney, Agent or Law Firm Douglas Luftman
  • Patent number: 6671447
    Abstract: An optical fiber organizing device is provided. The inventive fiber organizer includes a bracket preferably fittable inside an optical fiber duct of a telecommunications device and a plurality of retaining arms extending from the bracket dividing the main internal space into a plurality of internal sub-spaces. Each of the sub-spaces is adapted to retain bundles of optic fibers. The optical fiber organizer may be made from a single piece, for example, a single piece of stamped sheet metal. Alternatively, the retaining arms may be separate pieces made from resilient plastic. In either event, the retaining arms are preferably resilient and bendable to allow for intentional insertion and extraction of optical fibers while not allowing for the unintentional egress of fibers.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: December 30, 2003
    Assignee: Ciena Corporation
    Inventor: Gary Curtis Gehrke
  • Patent number: 6628725
    Abstract: An exemplary embodiment of the invention is a method for encoding data into a 48B/50B format for transmission over a serial link. A data stream that includes characters is received and segmented into a six-character block. The block of six characters is translated into a 50-bit byte frame in 48B/50B format. A 48-bit word is created from the block of six characters by encoding the characters contained in the block. The 48-bit word is scrambled and a 2-bit synchronization sequence is appended to the scrambled 48-bit word. The result is the 50-bit byte frame in 48B/50B format. An alternate embodiment of the present invention includes a method for decoding data from the 48B/50B format.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: September 30, 2003
    Assignee: Ciena Corporation
    Inventors: Joel Fredric Adam, Darren Scott Engelkemier, Edward Everett Sprague
  • Patent number: 6343075
    Abstract: A switch is provided that includes three stages. The first stages has a plurality of switch circuits. The second stage has a plurality of switch circuits equal to N, where N is any integer other than a power of 2 and where the switch circuits can be logically configured into a logical configuration of a power of 2. The third stages includes a plurality of switch circuits.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: January 29, 2002
    Assignee: CIENA Corporation
    Inventors: Daniel E. Klausmeier, Jeffrey T. Gullicksen