Mizugaki
Hisayoshi Mizugaki, Chikusei-Shi JP
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20080303721 | Planar Antenna Module, Triple Plate Planar Array Antenna, and Triple Plate Feeder - Waveguide Converter - The present invention provides inexpensively a planar antenna module that is able to realize a loss reduction, a reduction in characteristic variation caused by an assembling error, and an improved stability in frequency characteristics. | 12-11-2008 |
Hisayoshi Mizugaki, Ibaraki JP
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20100085133 | TRIPLATE LINE-TO-WAVEGUIDE TRANSDUCER - A ground conductor ( | 04-08-2010 |
Kenichi Mizugaki, Tokyo JP
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20140293855 | WIRELESS COMMUNICATION SYSTEM AND WIRELESS ROUTER - In an ad-hoc wireless communication system, when there occurs a disparity in the remaining amounts of the batteries of wireless routers, it is impossible for each wireless router to change a communication route by itself. As proposed herein, in an invented multi-hop wireless network for communication via a plurality of routers, a wireless router operating intermittently changes its intermittent operation interval depending on its circumstances by its own judgment. | 10-02-2014 |
Kenichi Mizugaki, Hitachinaka JP
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20130235905 | GATEWAY WIRELESS COMMUNICATION INSTRUMENT, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION CONTROL METHOD - A period is defined to execute the sequences (processes) of communication data acquisition, measuring communication quality, communication quality data acquisition, and channel change. Processing is controlled to execute each process within a time limit set for each process and execute all processes in one cycle. This avoids that a delayed sequence influences and delays other sequences and can suppress delays. If processing fails to finish a sequence, it will resume the same sequence in the next cycle. For communication stations sharing timeslots, there are provided offset periods differing in length before the start of carrier sense in the timeslots for these stations. Consequently, even under a condition in which packet collision may occur, the collision of packets can be avoided by detecting a packet sent to another station by carrier sense. Moreover, by controlling sending priority of packets in the send queue of the gateway, sending delay can be avoided. | 09-12-2013 |
Kenichi Mizugaki, Kokubunji JP
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20110092223 | Reciever, frequency deviation measuring unit and positioning and ranging system - In a system for measuring a time difference of arrival of signals for positioning, an accurate time difference is measured by a receiver which is reduced in power consumption, size, and cost. The system comprises a node (under measurement) for transmitting a positioning signal, a reference station for transmitting a reference signal, and a plurality of access points for receiving the positioning signal and reference signal, and a server connected to the plurality of access points through a network. Each of the plurality of access points measures a time difference between the reception of the positioning signal and the reception of the reference signal, and a frequency deviation from the reference station, using a clock signal and a signal for shifting the clock signal, and the server calculates the position of the node based on the measured time difference and frequency deviation. | 04-21-2011 |
Kenichi Mizugaki, Kodaira JP
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20080232297 | Node location method, node location system and server - A node location system for detecting a node by receiving two or more access points. The node location system includes a node, a reference station, multiple access points, a server, and a network. After receiving a location signal, the reference station sends a reference signal, and the access points receive a position measurement signal and a reference signal, and detects a specified pattern from the received location signal and reference signal, and measures the time from detecting the specified pattern from the location signal until detecting the time from the reference signal, and sends the signal-receive-time information including that measured time to the server, and the server calculates the difference between the time the reference station received the location signal and the time that the access points received the location signal, and then calculates the node position based on this calculated differential. | 09-25-2008 |
20110310748 | COORDINATOR, WIRELESS NODE AND WIRELESS COMMUNICATION SYSTEM - A wireless communication system provides high reliability wireless communications even when large scale interference affecting the entire system has occurred in ad hoc wireless communication systems. The node, access point, and intermediate nodes are each equipped with multiple wireless standards, and notify a wireless communication control device called a coordinator that sets the network communication paths with communication path information obtained by measuring the state of communication paths in the vicinity of their own respective nodes. The coordinator that now knows the communication status, issues instructions for setting plural routes using multiple wireless standards between the node and the access points as well as which wireless standard to use to implement communications between each intermediate zone, and each intermediate node conveys the measurement data while complying with those instructions. | 12-22-2011 |
20120155301 | Wireless Network System and Wireless Communication Device - A wireless communication device includes a sensor processing unit that generates sensor data including a measurement result acquired by a sensor; a communication measurement unit that generates communication quality data including a communication state for transmitting a packet; a compression determination unit that determines compression rates of first sensor data and first communication quality data according to the contents of the first sensor data including the transmitted sensor data and the generated sensor data or the contents of the first communication quality data including the transmitted sensor data and the generated communication quality data; a compression unit that compresses the first sensor data and the first communication quality data according to the determined compression rates; and a wireless communication unit that transmits a packet including the compressed first sensor data and the compressed first communication quality data to another wireless communication device or the access point. | 06-21-2012 |
Koichi Mizugaki, Suwa-Shi JP
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20090267873 | ELECTROOPTIC APPARATUS SUBSTRATE AND EXAMINING METHOD THEREFOR AND ELECTROOPTIC APPARATUS AND ELECTRONIC EQUIPMENT - An electrooptic apparatus substrate and examination method therefor can be provided which can implement an examination without requiring bringing a probe into contact thereto from the outside and with satisfactory measuring accuracy. A substrate | 10-29-2009 |
Megumi Mizugaki, Tokyo JP
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20090201365 | Skin Condition Diagnosis System And Counseling System For Beauty - [Problem] To provide a system which can simplify operations at the time of diagnosis at the store, which enables even a beginner to diagnose a customer's skin condition, thereby achieving higher precision diagnostic results. | 08-13-2009 |