Patents by Inventor Norihiro Fukumoto

Norihiro Fukumoto 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).

  • Control of packet buffer using token buckets with different token bucket sizes
    Patent number: 8311052
    Abstract: Control of readout of packets from a packet buffer is disclosed in which equal numbers of tokens are removed and used from token buckets having different bucket sizes; tokens are generated at token rates for the token buckets, wherein each token rate is preset such that the larger the token bucket size, the lower the token rate, and the generated tokens are added to the token buckets; a used-token count is measured for each token bucket, and a stored-token count is measured for each token bucket, with the stored-token count given a negative value if each token bucket is empty; and a number of data packets are read out of the packet buffer, which depends on the measured value of the used-token count for each token buffer.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: November 13, 2012
    Assignee: KDDI Corporation
    Inventors: Hajime Nakamura, Norihiro Fukumoto, Takeshi Kitahara
  • CONTROL OF PACKET BUFFER USING TOKEN BUCKETS WITH DIFFERENT TOKEN BUCKET SIZES
    Publication number: 20100246596
    Abstract: Control of readout of packets from a packet buffer is disclosed in which equal numbers of tokens are removed and used from token buckets having different bucket sizes; tokens are generated at token rates for the token buckets, wherein each token rate is preset such that the larger the token bucket size, the lower the token rate, and the generated tokens are added to the token buckets; a used-token count is measured for each token bucket, and a stored-token count is measured for each token bucket, with the stored-token count given a negative value if each token bucket is empty; and a number of data packets are read out of the packet buffer, which depends on the measured value of the used-token count for each token buffer.
    Type: Application
    Filed: June 16, 2010
    Publication date: September 30, 2010
    Applicant: KDDI CORPORATION
    Inventors: Hajime Nakamura, Norihiro Fukumoto, Takeshi Kitahara