Patent application number | Description | Published |
20080229829 | PIEZOELECTRIC OSCILLATOR, SENSOR, AND MULTI-SENSOR - A piezoelectric oscillator includes: a piezoelectric substrate having at least a vibrating part and a base part; an excitation electrode formed on the vibrating part; and an oscillation circuit formed on the base part. In the piezoelectric oscillator, the oscillation circuit includes a thin film transistor made of one of polysilicon and monocrystalline silicon and is coupled to the excitation electrode. | 09-25-2008 |
20090184381 | SEMICONDUCTOR SENSOR AND METHOD FOR MANUFACTRUING THE SAME - A semiconductor sensor includes: a semiconductor substrate; a plurality of piezoelectric thin films layered on the semiconductor substrate, the plurality of piezoelectric thin films including at least a pair of the piezoelectric thin films layered above and below; a pair of electrodes that are formed at an interface of at least the pair of the piezoelectric thin films layered above and below and excite surface acoustic waves; a thin film directly under a lowest-layer piezoelectric film of the piezoelectric thin films; a metal thin film that is formed at an interface of the lowest-layer piezoelectric thin film and the thin film, and facilitate a growth of a ridge-and-valley portion on a surface of an uppermost-layer piezoelectric thin film of the piezoelectric thin films; and a sensitive film for molecular adsorption formed on at least the ridge-and-valley portion on the uppermost-layer piezoelectric thin film. | 07-23-2009 |
20110067484 | SEMICONDUCTOR SENSOR AND METHOD FOR MANUFACTURING THE SAME - A semiconductor sensor includes: a semiconductor substrate; a plurality of piezoelectric thin films layered on the semiconductor substrate, the plurality of piezoelectric thin films including at least a pair of the piezoelectric thin films layered above and below; a pair of electrodes that are formed at an interface of at least the pair of the piezoelectric thin films layered above and below and excite surface acoustic waves; a thin film directly under a lowest-layer piezoelectric film of the piezoelectric thin films; a metal thin film that is formed at an interface of the lowest-layer piezoelectric thin film and the thin film, and facilitate a growth of a ridge-and-valley portion on a surface of an uppermost-layer piezoelectric thin film of the piezoelectric thin films; and a sensitive film for molecular adsorption formed on at least the ridge-and-valley portion on the uppermost-layer piezoelectric thin film. | 03-24-2011 |
Patent application number | Description | Published |
20080252566 | Display, Display Method, and Electronic Device - A display, comprising: a planar display section; a pixel space provided next to a side adjacent to one surface of the display section and encapsulating a plurality of kinds of colorants, each kind having a different color; an accumulation section provided in the pixel space and accumulating the colorants; a separation system that separates a specific kind of colorant from the accumulated colorants in the accumulation section; a transfer system that selects at least one kind of colorant from the separated colorants and transfers this colorant to the side adjacent to the display section of the pixel space. The separation system performs separation utilizing the magnitude of a dielectrophoretic force generated in each colorant upon receipt of an alternating electric field of a specific frequency applied by this system, the magnitude varying depending on the kind of the colorant. A color of at least the one kind of colorant transferred by the transfer system is displayed at the display section. | 10-16-2008 |
20090251129 | FREQUENCY MEASUREMENT DEVICE AND MEASUREMENT METHOD - A frequency measurement device includes: a short gate time counter section that continuously measures a pulse stream signal supplied, and outputs a series of count values that behave like a pulse stream corresponding to a frequency of the pulse stream signal; and a low-pass filter that removes high frequency components from the series of count values to obtain a level signal corresponding to the frequency of the pulse stream signal supplied. | 10-08-2009 |
20100277247 | OSCILLATOR CIRCUIT, OSCILLATOR CIRCUIT GROUP, ELECTRONIC APPARATUS, AND LAYOUT METHOD FOR OSCILLATION CIRCUIT GROUP - An oscillation circuit includes: a first oscillation circuit and a second oscillation circuit, wherein the first oscillation circuit includes a first input side electrode electrically connected to a first oscillator and a first output side electrode electrically connected to the first oscillator, and the second oscillation circuit includes a second input side electrode electrically connected to a second oscillator and a second output side electrode electrically connected to the second oscillator, wherein the distance between the first output side electrode and the second input side electrode is greater than the distance between the first input side electrode and the first output side electrode. | 11-04-2010 |
20100277251 | OSCILLATOR, OSCILLATOR ARRAY AND AN ELECTRONIC APPARATUS - A oscillator include: a vibrator that vibrates in a thickness shear vibration mode; a first adsorption film formed in a first region in a first surface of the vibrator; a second adsorption film formed in a second region in a second surface of the vibrator opposing to the first surface; and a substrate with a surface on which the vibrator is erected, wherein the vibrator contacts the substrate in a third surface that is different from the first surface and the second surface. | 11-04-2010 |
20110050352 | ELECTRIC CIRCUIT, SENSOR SYSTEM EQUIPPED WITH THE ELECTRIC CIRCUIT, AND SENSOR DEVICE EQUIPPED WITH THE ELECTRIC CIRCUIT - An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal. | 03-03-2011 |
20110309821 | FREQUENCY MEASURING DEVICE AND ODOR SENSOR AND ELECTRONIC EQUIPMENT WHICH ARE PROVIDED WITH THE FREQUENCY MEASURING DEVICE - A frequency measuring device according to an embodiment of the invention includes a first resonator provided with a first adsorption film, a second resonator provided with a second adsorption film, a first oscillation circuit which is connected to the first resonator and is provided with a first frequency regulator that can regulate the frequency of a first oscillation signal and output the first oscillation signal, a second oscillation circuit which is connected to the second resonator and is provided with a second frequency regulator that can regulate the frequency of a second oscillation signal and output the second oscillation signal, a measuring circuit which can measure the frequencies of the first oscillation signal and the second oscillation signal, and a control circuit which can control the first frequency regulator and the second frequency regulator. | 12-22-2011 |
Patent application number | Description | Published |
20090262658 | Method of Measuring Receive Power of CDMA Mobile Communication System, and CDMA Mobile Communication System - The receive power of uplink signals in a CDMA mobile communication system is measured by prohibiting a mobile station from transmitting an uplink signal including a frame over a first channel during a predetermined transmission prohibition period, and measuring a receive power of uplink signals at a base station transmitted from each of the mobile stations located in a cell during the prohibition period. Another method of measuring the receive power includes measuring a first receive power of uplink signals at a base station from each mobile station located in a cell, and measuring each second receive power of uplink signal including a frame only over a first channel transmitted from each mobile station, and then calculating a total receive power of uplink signals excluding frames over the first channel by subtracting respective second receive powers from the first receive power. | 10-22-2009 |
20110195717 | COMMUNICATION SYSTEM, SECONDARY BASE STATION, WIRELESS COMMUNICATION METHOD, COMMUNICATION PROGRAM, COMMUNICATION CIRCUIT, AND WIRELESS RELAY APPARATUS - A communication system in which a primary base station or a secondary base station communicates with a mobile terminal. The primary base station sends the mobile terminal and the secondary base station an announcement signal which includes identification information for identifying a cell of the primary base station. When receiving the announcement signal, the secondary base station sends the mobile terminal a pseudo announcement signal which includes the identification information and adjacent cell information which includes information for a cell of the secondary base station. When receiving the announcement signal and the pseudo announcement signal, the mobile terminal compares a reception power of the signal received from the primary base station with that of the signal received from the secondary base station, and performs communication with one of the base stations which has higher power. | 08-11-2011 |
20110319030 | RADIO COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, AND THEIR CONTROL METHOD - To provide a radio communication system capable of reducing the power consumption of a radio base station apparatus. A radio communication system according to the present invention includes a user apparatus ( | 12-29-2011 |
20120202505 | BASE STATION, GATEWAY, MOBILE COMMUNICATION SYSTEM, AND HANDOVER TARGET SPECIFYING METHOD AND PROGRAM USED THEREFOR - In order to specify a handover target of a mobile station regardless of allocation of PSCs, each of femto base stations ( | 08-09-2012 |
20120300749 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, RADIO COMMUNICATION SYSTEM, CONTROL METHOD FOR MOBILE STATION, AND CONTROL METHOD FOR BASE STATION - A mobile station apparatus ( | 11-29-2012 |
20130028188 | PACKET TRANSFERRING METHOD, MOBILE COMMUNICATION SYSTEM AND MOBILE STATION - In a mobile Communication system which includes a base station controller, a plurality of radio base stations connected to the base station controller, and a mobile station simultaneously communicable with the plurality of radio base stations, the base station controller transfers a packet through the plurality of radio base stations to the mobile station. The mobile Station receives the packet as a plurality of reception packets through the plurality of radio base stations. The mobile station includes a controller that selects, among the plurality of reception packets supplied from the plurality of radio base stations, a best quality packet as a selected packet and sends, if the selected packet includes an error portion, a retransmission request to one of the plurality of base stations that sent the selected packet in order to request retransmission of a correct portion corresponding to the error portion. | 01-31-2013 |
20130040650 | CONTROL APPARATUS, MOBILE COMMUNICATION SYSTEM, RADIO COMMUNICATION CONTROL METHOD, AND COMPUTER READABLE MEDIUM - A control apparatus (e.g., a radio base station) for controlling radio communication includes a communication unit for transferring data, an RLC processor for performing radio link control, an RLC parameter adaptive controller for setting a parameter to be used for the radio link control, a broadcast information generator for generating broadcast information including the parameter, and a pseudo incoming call controller for performing pseudo incoming call to a communication terminal (e.g., a mobile terminal) for a plurality of times after the broadcast information is broadcasted to the communication terminal through the communication unit, to measure a success rate of the pseudo incoming calls using responses to the pseudo incoming calls. The RLC parameter adaptive controller updates the parameter according to the success rate measured by the pseudo incoming call controller. | 02-14-2013 |
20130150034 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, MOBILE STATION AND BASE STATION, AND CONTROL METHOD AND COMPUTER READABLE MEDIUM THEREFOR - A wireless communication system according to the present invention is a wireless communication system including a mobile station and a base station that wirelessly communicates with the mobile station. The wireless communication system includes area determination means that determines, based on position information of the mobile station, which of a plurality of areas the mobile station is positioned, in which the plurality of areas are obtained by dividing a cell managed by the base station, and neighbour cell information notification means that notifies the mobile station of neighbour cell information associated with the area where the mobile station is positioned. This configuration enables cell search for the neighbour cell at the mobile station in a smaller area than a cell corresponding to the position of the mobile station. | 06-13-2013 |
20130288684 | METHOD, SYSTEM OF PERFORMING HAND OVER WITHOUT ADDING INFORMATION OF FEMTO BASE STATION TO PERIPHERAL BASE STATION ANNOUNCEMENT INFORMATION IN A WIRELESS COMMUNICATION NETWORK - A communication system in which a primary base station or a secondary base station communicates with a mobile terminal. The primary base station sends the mobile terminal and the secondary base station an announcement signal which includes identification information for identifying a cell of the primary base station. When receiving the announcement signal, the secondary base station sends the mobile terminal a pseudo announcement signal which includes the identification information and adjacent cell information which includes information for a cell of the secondary base station. When receiving the announcement signal and the pseudo announcement signal, the mobile terminal compares a reception power of the signal received from the primary base station with that of the signal received from the secondary base station, and performs communication with one of the base stations which has higher power. | 10-31-2013 |
20130326057 | INTERNET PROTOCOL (IP) NETWORK DEVICE, NETWORK SYSTEM, METHOD THEREOF - An internet protocol (IP) network device is provided including a detector adapted to detect an event in the internet protocol (IP) network device. The network device also includes a generator adapted to generate a trap message including event information having information about the detected event. The network device also includes a transmitter adapted to transmit, to an internet protocol (IP) network management device, the trap message including the event information and a first sequence indicator. The network device also includes a timer adapted to measure a time period from a time at which the transmitter transmits the trap information. If the measured time period is equal to or longer than a predetermined time, the generator generates an empty trap message and the transmitter transmits, to the network management device, the empty trap message and a second sequence indicator. | 12-05-2013 |
20140248896 | CELL IDENTIFIER ALLOCATION METHOD, BASE STATION, MAINTENANCE SERVER, AND MOBILE COMMUNICATION SYSTEM - A cell identifier allocation method includes: a measurement step of measuring the reception power or propagation loss of the signal received inside the target cell from each of the cells of adjacent base stations in the neighborhood of the target cell; an identification step of identifying the first cell that has the greatest reception power or the lowest propagation loss, from among the cells of the adjacent base stations; and, an allocation step of allocating a cell identifier in which the code sequence number of the synchronization signal is different from that of the first cell and that has not been allocated to any of the cells of the adjacent base stations, to the target cell. | 09-04-2014 |