Patent application number | Description | Published |
20080297240 | Filter Circuit and Semiconductor Device - A filter circuit includes a low-pass filter and a calibration circuit calibrating a frequency characteristic of the low-pass filter. The calibration circuit includes a negative feedback circuit and a control circuit. | 12-04-2008 |
20100120375 | TRANSMITTING AND RECEIVING CIRCUIT - A transmitting and receiving circuit includes a transmitting side amplifier circuit amplifying a transmission signal transmitted from an antenna, a receiving side amplifier circuit amplifying a reception signal received by the antenna and being electrically connected to the a transmitting side amplifier circuit, a first matching circuit matching the antenna and the transmitting side amplifier circuit, a second matching circuit matching the antenna and the receiving side amplifier circuit, a first current source circuit capable of controlling an operating state and setting a first connection point between the first matching circuit and an output terminal of the transmitting side amplifier circuit to a given voltage, and a second current source circuit capable of controlling an operating state and setting a second connection point between the second matching circuit and an input terminal of the receiving side amplifier circuit to a given voltage. | 05-13-2010 |
20130107768 | COMMUNICATION NETWORK SYSTEM, NODE APPARATUS, AND ROUTE SELECTION METHOD FOR COMMUNICATION NETWORK SYSTEM | 05-02-2013 |
20130329562 | OPERATION MONITORING APPARATUS, CAUSE EVENT ESTIMATING METHOD FOR THE SAME, AND INFORMATION COMMUNICATION NETWORK SYSTEM - An operation monitoring apparatus for estimating a cause by which a first and second observation data observed by a monitored apparatus are obtained, the operation monitoring apparatus including: an observation event receiving process unit which receives the first and second observation data transmitted from the monitored apparatus; an observation event extracting unit which extracts the first observation data, out of the first and second observation data, based on a probability that the cause occurs with respect to the first and second observation data; a cause event determining process unit which estimates the cause based on the extracted first observation data; and a cause notifying process unit which outputs data indicating the estimated cause. | 12-12-2013 |
20140073328 | RADIO MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS, AND RADIO COMMUNICATION METHOD IN RADIO MOBILE COMMUNICATION SYSTEM - A radio mobile communication system including: a radio base station apparatus; and a mobile terminal apparatus, wherein radio communication is performed between the radio base station apparatus and the mobile terminal apparatus, the radio base station apparatus includes: a first transmission unit which transmits a first notification signal to notify a shift to a first mode; and a first mode switching control unit which transmits the first notification signal and switches to the first mode in which the first transmission unit is shifted to a condition of a suspension state, and the mobile terminal apparatus includes: a second mode switching control unit which switches to a second mode in which power of the mobile terminal apparatus is in an ON state and power consumption is smaller than in an outside coverage area mode, on receiving the first communication signal. | 03-13-2014 |
20140287730 | MOBILE COMMUNICATION SYSTEM, QUALITY CONTROL METHOD, AND MONITORING CONTROL DEVICE - A mobile communication system includes: a content server configured to accumulate a content; a wireless base station device configured to receive the content sent from the content server; a terminal device configured to receive the content wirelessly sent from the wireless base station device; and a monitoring control device configured to: control delivery of the content to the terminal device over the content server, and send to the terminal device, when a quality of experience (QoE) for a user utilizing the terminal device due to delivery of the content, the QoE being predicted in accordance with sending of a first delivery request for the content from the terminal device, does not meet a given condition, information on a clock time or a place in which a new predicted QoE meets the given condition. | 09-25-2014 |
20140373038 | QUALITY EVALUATION APPARATUS, QUALITY EVALUATION METHOD, COMMUNICATION SYSTEM, AND RADIO BASE STATION APPARATUS - A quality evaluation apparatus for evaluating quality of a picture transmitted from a radio base station apparatus to a terminal apparatus, the apparatus including: a perception quality estimation processing unit configured to estimate the quality of picture viewed at the terminal apparatus based on quality of a radio section between the radio base station apparatus and the terminal apparatus; and a quality evaluation processing unit configured to output an evaluation result evaluated the estimated quality of picture. | 12-18-2014 |
20150327259 | MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, AND OPERATION CONTROL METHOD - A mobile communication system including: a first and second radio base stations apparatuses; and a terminal apparatus, wherein radio communication is performed between the first and second base station apparatuses and the terminal apparatus, and the first radio base station apparatus includes: a first control unit configured to control whether or not operation of the first radio base station apparatus is caused to be dormant based on a message exchanged between the second radio base station apparatus adjacent to the first radio base station apparatus and the first radio base station apparatus. | 11-12-2015 |