Patent application number | Description | Published |
20100254407 | COMMUNICATION DEVICE AND BANDWIDTH ALLOCATION METHOD - A communication device, which provides a bandwidth allocation opportunity to ONUs each having different data transmission rates, not depending on any specific bandwidth-request notifying method, thereby realizing fair upstream transmission data delay between data transmission rates of respective ONUs, includes a bandwidth-update-cycle division processor that divides the bandwidth update cycle into slots of each of the data transmission rates, a bandwidth-allocation-amount calculating unit that allocates a bandwidth to the slave station devices in a slot of the data transmission rate, and a transmission-start-time calculating unit that sets a transmission start time and a transmission time of data of the slave station devices, based on an overhead length of a data frame transmitted by the slave station devices. | 10-07-2010 |
20110064937 | COMPOSITION FOR PRECIOUS METAL SINTERING, PROCESS FOR PRODUCING PRECIOUS METAL SINTER AND PRECIOUS METAL SINTER - A composition for precious metal sintering that yields a precious metal sinter for use in jewelry, ornaments, accessories, etc., by sintering, especially that realizes not only production of a precious metal sinter even when the precious metal content per volume of the composition for precious metal sintering is reduced but also in a striking reduction of the weight of the precious metal sinter. Further, there are disclosed a process for producing the precious metal sinter and the precious metal sinter. This composition for precious metal sintering is characterized by comprising a mixture of precious metal powder, hollow glass powder and organic binder solution. | 03-17-2011 |
20110076503 | GLASS FIBER-TREATING AGENT AND GLASS FIBER-TREATING COMPOSITION - Glass fiber-treating agent which includes: (A) 5-95% by weight of an acetylene glycol or an ethylene oxide and/or a propylene oxide adduct of an acetylene glycol; and (B) 5-95% by weight of a silicone surfactant which may be polyoxyalkylene-modified. The glass fiber-treating agent reduces dynamic and static surface tension and contact angle. The glass fiber-treating agent provides excellent wetting, penetration, and antifoaming properties when glass fibers are treated therewith. | 03-31-2011 |
20110305451 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND METHOD OF ALLOCATING BANDWIDTH - A communication device operating as a master unit includes: a MAC layer termination functioning unit for extracting, from a receiving signal, queue length information scheduled to be transmitted from an ONU, and controlling transmission of a grant to the ONU; a traffic monitor for measuring an amount of uplink traffic of each ONU; and a bandwidth allocation functioning unit for determining a bandwidth to be allocated to each ONU based on the queue length information extracted by the MAC layer termination functioning unit, the amount of traffic measured by the traffic monitor, and a bandwidth that can be allocated in one cycle of bandwidth update, and issuing a grant according to the determination. The bandwidth allocation functioning unit updates a bandwidth to be allocated periodically. | 12-15-2011 |
20110311221 | MASTER STATION UNIT AND METHOD OF ALLOCATING GRANT - In a PON system including a high-speed optical signal of a high transmission speed and a low-speed optical signal the speed of which is lower than that of the high-speed optical signal, the PON system employing TDMA system for upward signal transmission, an OLT controls transmission and reception of the low-speed optical signal and the high-speed optical signal and allocates a grant to a slave station unit connected to the OLT. The OLT includes: a traffic monitoring part for measuring the amount of traffic of data received from a high-speed ONU that is a slave station unit that makes communications using the high-speed optical signal; and a bandwidth allocating part for allocating a grant to a low-speed ONU on the basis of report information acquired from the low-speed ONU that is a slave station unit that makes communications using the low-speed optical signal, the bandwidth allocating part allocating a grant to the high-speed ONU on the basis of report information acquired from the high-speed ONU, a grant allocated in a previous cycle, and a result of measurement of the amount of traffic in the previous cycle acquired from the traffic monitoring part. | 12-22-2011 |
20120128357 | COMMUNICATION SYSTEM, STATION-SIDE OPTICAL LINE TERMINATING APPARATUS, USER-SIDE OPTICAL LINE TERMINATING APPARATUS, CONTROL APPARATUS, AND COMMUNICATION METHOD - An optical communication system that connects a plurality of user-side optical line terminating apparatuses (hereinafter referred to as ONUs) to a station-side optical line terminating apparatus (hereinafter referred to as OLT) using a common optical fiber, wherein the ONU as at least a part of the ONUs includes a transceiver having a power saving function for inactivating a transmitting unit while supplying electric power to a receiving unit and a control apparatus that transmits support information of the power saving function to the OLT via the transceiver, and the OLT includes a control apparatus that generates transmission allowance information of upstream communication based on the support information of the power saving function and a transceiver that receives the support information of the power saving function and transmits the transmission allowance information to the ONU. | 05-24-2012 |
20120301145 | BANDWIDTH CONTROL METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION DEVICE - A bandwidth control method used in a case where, for example, a first communication device (OLT) allocates a bandwidth for signal transmission to each of a plurality of second communication devices (ONUs) connected to the OLT in a communication system having the OLT and the ONUs includes a sleep controlling of shifting devices among the ONUs that satisfy a predetermined condition into a power saving state, a control-target selecting of selecting control target devices among the ONUs based on a result of performing the sleep controlling, and a bandwidth determining of determining a bandwidth to be allocated to the selected control target devices. | 11-29-2012 |
20130045005 | COMMUNICATION METHOD FOR OPTICAL COMMUNICATION SYSTEM, OPTICAL COMMUNICATION SYSTEM, SLAVE STATION APPARATUS, CONTROL DEVICE, AND COMPUTER PROGRAM - The control device includes a power-saving control unit that intermittently repeats, based on a power saving permission signal transmitted from the master station apparatus, power saving control in which the slave station stops or reduces power supply to a transmitter or a receiver for a predetermined pause duration while maintaining a communication link and a monitoring unit that monitors out of synchronization by comparing a synchronization signal received from the OLT and a time of the ONU. The control device shifts from a registered state to a deregistered state when the monitoring unit detects the out of synchronization. On the other hand, after the pause duration of the power saving control, the control device suppresses the shift to the deregistered state due to the detection of the out of synchronization. | 02-21-2013 |
20130129354 | LOGICAL-LINK MANAGEMENT METHOD AND COMMUNICATION DEVICE - A logical-link management method to be executed in an optical communication system including a station side device (OLT) and a subscriber side device (ONU) that is capable of setting a plurality of logical links together with the OLT, in which the OLT transmits a signal for managing the ONU via a single logical link. The logical-link management method includes a status monitoring of the OLT monitoring whether there is a change in a connection status of the logical link between the OLT and the ONU and a link resetting of the OLT resetting, when a change of the connection status of the logical link is detected at the status monitoring, a device management logical link used for transmitting the signal for managing the ONU according to a predetermined procedure. | 05-23-2013 |
20140086584 | COMMUNICATION SYSTEM, STATION-SIDE OPTICAL LINE TERMINATING APPARATUS, USER-SIDE OPTICAL LINE TERMINATING APPARATUS, CONTROL APPARATUS, AND COMMUNICATION METHOD - A communication system in which a plurality of user-side optical line terminating apparatuses (Optical Network Units, hereinafter referred to as ONUs) and station-side optical line terminating apparatus (Optical Line Terminal, hereinafter referred to as OLT) are connected with a common optical fiber. The ONUs each includes: an ONU side optical transceiver having a transmitting function capable of being stopped and waked in a power saving mode to reduce power consumption; and an ONU control device configured to stop the transmitting function of the ONU side optical transceiver in a period designated by the OLT via the ONU side optical transceiver. The OLT includes: an OLT side optical transceiver connected to the optical fiber; and an OLT control device configured to designate the period the ONU stops the transmitting function of the ONU side optical transceiver to the ONU via the OLT side optical transceiver. | 03-27-2014 |
20140170549 | CHARGE CONTROL AGENT COMPOSITION FOR EXTERNAL ADDITION AND ELECTROSTATIC IMAGE DEVELOPING TONER - There is provided an electrostatic image developing toner less likely to cause image degradation even when used for a long period, by controlling CCA particles present on surfaces of toner particles and thereby keeping an amount of tribocharge generated between the toner and a magnetic carrier or the like constant. A charge control agent composition for external addition for controlling charge amount of toner particles includes: at least two types of carrier particles different in average particle size of primary particles; and a charge control agent (CCA), and an electrostatic image developing toner is constituted of a mixture of toner particles and the aforesaid charge control agent composition for external addition. | 06-19-2014 |
20140193150 | COMMUNICATION SYSTEM, STATION-SIDE COMMUNICATION DEVICE, USER-SIDE COMMUNICATION DEVICE, COMMUNICATION METHOD, AND CONTROL DEVICE - An OLT includes an OLT control unit that generates a control signal for controlling a power saving operation of an ONU by specifying a different idle period with respect to a first power saving operation in which an optical receiver is operated while an optical transmitter of the ONU is controlled to a power saving state and a second power saving operation for controlling the optical transmitter and the optical receiver to the power saving state, and a station-side transmitter that transmits the control signal generated by the OLT control unit to the ONU. The ONU includes an ONU control unit that receives the control signal via the optical receiver to selectively perform the first power saving operation and the second power saving operation based on the idle period specified by the control signal. | 07-10-2014 |
20140200297 | POLYOLEFIN RUBBER COMPOSITION HAVING SURFACE LUBRICITY - A polyolefin rubber composition comprising (A) an ethylene/α-olefin/nonconjugated polyene random copolymer, (B) an organohydrogenpolysiloxane containing on average from 1 to less than 2 Si—H groups in a molecule, and (C) an addition reaction catalyst can be compression molded or steam vulcanized into a cured product having heat resistance and surface lubricity. The cured product is especially suited as weatherstrips and windshield wiper blades. | 07-17-2014 |