International Business Machines Corporation

Takehito Sakuragi

Hiroaki Kubo

Masakuni Okada

Kazuto Yamafuji

Masahiro Murakami

Embodiments of the present invention relate generally packet processing and, more particularly, to a system and method for buffering packets which reduces power consumption during the power saving mode of a system without dropping packets. The system and method may include a buffer controller that controls: a buffer, so that the buffer inputs and hold packets until a memory is operated by a stable supply of power; and the memory, so that the memory inputs and holds packets after it is operated by a stable supply of power after returning to a normal operating mode from a power saving mode.

Packet buffering system and method

A situation is circumvented where wireless communication becomes impossible in a wireless LAN system under the influence of a blocking object, noise caused by an electromagnetic wave, or the like. A wireless LAN system comprises: a relay which can communicate with an external system; a master which can communicate with the relay; and a plurality of slaves which can wirelessly communicate with the master, the plurality of slaves including a first group and a second group, the first group comprising an alternative slave having a function of transmitting, when a portion of the slaves cannot receive a synchronization signal from the master, an information signal received from the master to the portion of slaves, and the second group comprising non-alternative slaves and not having the function of transmitting the information signal to the portion of slaves.

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Kanagawa, Japan

Takehito Sakuragi