摘要:
A transmitter or transceiver can satisfactorily transmit or transmit and receive signals based on an oscillation signal from a single oscillator. The transmitter or transceiver includes oscillators (51, 52) for oscillating an oscillation signal having a first frequency, a first frequency divider (54) for frequency-dividing an oscillation signal of an oscillator, a clock generating circuit (60) for generating a clock of a second frequency based on a signal frequency-divided by the first frequency divider (54), a second frequency divider (57) for frequency-dividing an oscillation signal of an oscillator, a carrier generating circuit (70) for generating a carrier of a third frequency based on a signal frequency-divided by the second frequency divider (57), a frequency synthesizer (80) for generating a local signal of a fourth frequency based on an oscillation signal of an oscillator, a modulating circuit (20) for modulating predetermined transmission data based on a carrier generated from a carrier generating circuit and a frequency converter (16) for converting a modulated signal output from the modulating circuit (20) into a signal of a desired transmission frequency by a local signal output from the frequency synthesizer (80).
摘要:
A signal transmitting and receiving apparatus includes a transmitting circuit block which has a carrier signal supplying portion for supplying first and second carrier signals having the same frequency and a relative phase angle difference of substantially ninety degrees to be used for producing a transmissible digital phase-modulated signal. A receiving circuit block in which received digital data are obtained is based on a received digital phase-modulated signal, wherein the carrier signal supplying portion comprises a carrier signal generator for generating an additional carrier signal having a frequency twice as high as the frequency of each of the first and second carrier signals. A first flip-flop circuit produces the first carrier signal based on the additional carrier signal. A second flip-flop circuit produces the second carrier signal based on the additional carrier signal having been phase-inverted. A control unit causes the first and second flip-flop circuits to be operative when the signal transmitting operation is performed in the transmitting circuit block and to be inoperative when the signal receiving operation is performed in the receiving circuit block.
摘要:
A method, system, and a computer readable storage medium for visualizing total order relation of nodes included in structured document. The method includes acquiring log information, where the log information is created by storing information on transitions between nodes in a structured document in chronological order. The method also includes specifying a relation of relative positions of the nodes in the transitions based on acquired log information. The method further includes determining a total order relation of the nodes in the structured document by performing a topological sorting that uses specified relation as a constraint, where the total order relation of the nodes is determined by using content data of the node if the node is added to or removed from the structured document.
摘要:
A system and method that improve service and device discovery in a UPnP-based wireless communication network and avoids unnecessary broadcast messages on a MAC sublayer of a DLC layer caused by UPnP multicast messages on an IP layer by intercepting UPnP multicast messages in a network protocol stack below the IP layer. A module intercepts multicast UDP packets destined to a UPnP IP multicast address and port, the multicast UDP packets containing UPnP packets as payload. The module executes DLC/MAC-based service discovery functions to perform wireless network-specific device discovery and to find UPnP-enabled devices in the wireless communication network. Once a wireless network device discovery has returned nodes that fulfill criteria given in the search, the module uses unicast DLC/MAC messages to send UPnP packets to only those nodes that are UPnP-enabled and whose device type matches the respective UPnP device type sought.
摘要:
A polymer electrolyte membrane which exhibits superior high-temperature operability and a fuel cell and the like comprising the polymer electrolyte membrane are provided. In an aspect, the present invention relates to a polymer electrolyte membrane comprising a polymer electrolyte and having a first surface and a second surface, wherein the water vapor permeability coefficient from the first surface of the polymer electrolyte membrane to the second surface which is measured in a state where the first surface is exposed to a humidified environment of a temperature of 85° C. and a relative humidity of 20% and the second surface is exposed to a non-humidified environment of a temperature of 85° C. and a relative humidity of 0% is equal to or higher than 7.0×10−10 mol/sec/cm, and the breaking stress at a temperature of 80° C. and a relative humidity of 90% is equal to or greater than 20 MPa.
摘要:
A relay system for obtaining a program from a server and returning the program to a client by forwarding a message received from a client to the server.
摘要:
The present invention provides an RNA detection method detecting, from a reaction system containing a target sample, a target RNA chain originated from the target sample, using a surface having on the surface thereof a polymer substance which contains a first unit having a group derived from a phosphate ester composing the hydrophilic portion of a phospholipid and a second unit having a carboxylic acid derivative group composed of an electron-attractive substitutional group bound to a carbonyl group, while being provided with at least one reaction space, the reaction space having an immobilized nucleic acid primer immobilized therein.
摘要:
A magnetic recording medium is provided, which has at least one soft magnetic layer, at least one seed layer, at least one underlayer and at least one perpendicular magnetic recording layer, and is characterized in that the or each seed layer is comprised of a covalently bonded material. The covalently bonded material preferably predominantly comprises a nitride having a hexagonal crystal structure, more preferably, predominantly comprises aluminum nitride having a hexagonal wurtzite crystal structure. This magnetic recording medium is superior in recording and reproducing an information with high density.
摘要:
A perpendicular magnetic recording medium including at least a soft under layer, an orientation control layer, a magnetic recording layer and a protective layer on a non-magnetic substrate, wherein the orientation control layer is composed of three or more layers including a seed layer, a first intermediate layer and a second intermediate layer sequentially, formed in that order from the substrate side, the crystal grains that constitute the first intermediate layer are epitaxially grown on the crystal grains of the seed layer, the crystal grains that constitute the second intermediate layer are epitaxially grown on the crystal grains of the first intermediate layer, and the crystal grains that constitute the second intermediate layer are finer than the crystal grains that constitute the first intermediate layer.
摘要:
The present invention relates to a mobile audio player, comprising memory means adapted to store music data and non-music data, input means adapted to receive a user input with user preferences, radio program generating means adapted to generate, without a connection to an external entity, an individualized radio program from stored music data and non-music data depending on user preferences input via the input means, and audio output means adapted to output audio signals representing a generated radio program.