Fujitsu Corporation

Fujtisu Facilities Limited

Yasushi Tateno

Masatoshi Kimura

Tetsuo Yamamoto

Tetsuo Wada

Masato Kobayashi

Yasushi Sugama

Masashige Kawarai

Tsutomu Chikazawa

Kazumaro Takaiwa

Toshihisa Kyouno

Dai Hagimura

Kazunori Maruyama

Yoshiaki Shibayama

Yutaka Hayama

Yoshihisa Funami

Kouji Kurihara

Shigeo Handa

Nobuyuki Fukuchi

Kota Ichinose

Takanobu Wakabayashi

Akinori Nishiie

A computer-implemented method includes obtaining one of image information of a recording medium placed in a sensing area and tag information attached to the recording medium; obtaining environmental control information corresponding to the obtained one of image information and tag information from a storage; and based on the obtained environmental control information, controlling one or more of a light-emitting device, a display device, an audio device, a temperature control device, an air-flow control device, a vibration device, and an aroma emitting device that are disposed around the sensing area.

Information presentation method and information presentation apparatus

A first transmission device transmits a signal to a third transmission device by using an active line and a spare line. The first transmission device includes a CRC generator and an SN adder. The CRC generator calculates the CRC value of the signal. The SN adder stores, in a FCS byte filed in the signal, the FCS calculated value obtained by adding the SN representing consecutiveness of the signal to the CRC value. Furthermore, the first transmission device outputs the signal in which the FCS calculated value is stored to the second transmission device by using the active line and the spare line.

Transmission device, transmission system, and transmission method

An apparatus includes a transmission apparatus includes a memory, and a processor coupled to the memory and configured to extract a first data from control information used in communication processing with another transmission apparatus, the first data having a first data amount that is difference between data capacity of a first frame including second data and data amount of the second data, generate a second frame including the first data and the second data, and transmit the second frame to the another transmission apparatus.

Transmission apparatus, transmission system, and transmission method

An inter-frame gap controllerincludes an inter-frame gap length determinerthat determines the length of inter-frame gap based on traffic volume of Ethernet frames which are converted to synchronous frames and transmitted over synchronous network, and a gap inserterthat inserts the inter-frame gap of the length determined by the inter-frame gap length determinerbetween Ethernet frames which are converted from the synchronous frames.

Inter-frame gap controller, traffic transmitter, transmission apparatus and inter-frame gap control method

A data transmission/reception apparatus including a network layer device section for performing a process corresponding to a physical layer of an OSI reference model is provided. The apparatus includes a maintenance management data insertion/extraction section for inserting maintenance management data into data to be transmitted, transmitting the data to be transmitted, and extracting the maintenance management data from received data, wherein the maintenance management data insertion/extraction section performs the insertion and extraction of the maintenance management data with respect to the network layer device section.

Data transmission/reception apparatus and method for inserting and extracting maintenance management data

When a reception of a data signal is detected, a power supply control start signal is generated and the data signal is outputted to a signal processor in a fixed time. A power supply control signal for suppressing an output voltage variation of a power supply of the signal processor is generated until a processing completion signal from the signal processor is received after the power supply control start signal is generated. Alternatively, data signals received are separated by type and outputted to respective signal processors. After validity setting signals by type are received, a power supply control start signal is generated when the validity setting signals become valid in an overlapped manner. Such a power supply control signal is generated until one of the validity setting signals which have been valid so far becomes invalid after the power supply control start signal is generated.

Power supply control method and device

A transmission device capable of detecting and discarding duplicate data transmitted over Work and Protection paths of a ring network. An add/drop multiplexer adds/drops and cross-connects signals. When an FS-R control signal, for example, is received, a bridge distributes the signal output from the add/drop multiplexer to the Work and Protection routes of the ring network. When the signal distribution is executed by the bridge, a discard information inserter inserts discard information into the signal output to the Work route by the bridge. A discard information detector determines whether or not the discard information is included in the signal dropped by the add/drop multiplexer. A signal discarder discards the dropped signal, depending on whether the discard information is detected by the discard information detector.

Transmission device

An optical multiplex communication system includes a transmission part and a receiving part, wherein the transmission part includes a transmission quality detecting part which measures and transmits a transmission quality information for the channels based on a request from the transmission part; the receiving part includes a variable optical attenuation part controls the optical signal level for the channels, an optical level setting part controls the variable optical attenuation part based on a setting value, a setting control part adding the setting value to the optical level setting part based on a request for setting.

Growing community of inventors

Kawasaki, Japan

Yasushi Tateno