Abstract: A surface acoustic wave device having an unbalanced-to-balanced conversion function, which is capable of improving balanced characteristics, includes a first resonator filter and a second resonator filter, having a plurality of interdigital transducers disposed along the propagation direction of a surface acoustic wave. The surface acoustic wave device has an unbalanced-to-balanced conversion function as a result of the phase of the second resonator filter being reversed by 180° with respect to that of the first resonator filter. The surface acoustic wave device further includes a first resonator connected in series to an unbalanced signal terminal side of the first resonator filter, and a second resonator connected in series to an unbalanced signal terminal side of the second resonator filter. The first resonator and the second resonator have different design parameters.

Abstract: A surface acoustic wave apparatus includes three longitudinally-coupled-resonator-type interdigital transducers (IDTs) having a balanced-to-unbalanced conversion function, which are provided on a piezoelectric substrate in a direction in which a surface acoustic wave (SAW) propagates. Weighting is applied to at least one of the IDTs. For example, among the electrode fingers of the IDT located on the left side, an apodization-weighted electrode finger is provided for one of the electrode fingers positioned adjacent to the central IDT.

Abstract: The present invention provides a method of spray coating deodorant, antibacterial and antifungal agent which can exert a deodorant, antibacterial and antifungal effect even in a dark place shielded from light and which is not hazardous to animals, human and environment as well as a deodorized and antibacterially and antifungally treated article. An article to be subjected to a deodorizing, antibacterial and antifungal treatment is spray-coated with a solution comprising as an active component a titanium phosphate-based compound or a condensate thereof at a coating rate of 10 to 30 g/m2 using a spray gun whose pumping rate is 33 to 34 cc per minute.

Abstract: A bidirectional transmission circuit for inputting/outputting a signal from/onto a bidirectional transmission line includes: a transceiver for transmitting/receiving a signal; a first element having an impedance; a second element being a short line; and a switching unit for coupling the transceiver to the bidirectional transmission line via the first element when the transceiver transmits a signal, and coupling the transceiver to the bidirectional transmission line via the second element when the transceiver receives a signal.

Abstract: A receiver includes a noise reduction circuit for eliminating noise from a differential signal transmitted through a differential transmission line and a data recovery circuit for recovering data from a differential signal outputted from the noise reduction circuit. The noise reduction circuit includes common-mode chokes for reflecting common-mode noise superimposed on an input differential signal and a common-mode noise reduction circuit for directing the common-mode noise reflected by the common-mode chokes to a low potential point of the common-mode noise reduction circuit.

Abstract: A copyright protection system comprises an encryption device and a decryption device. Cryptographic communication is performed between the encryption device and the decryption device using a contents key. The encryption device includes a contents storage section for storing contents, a first contents key generation section for generating the contents key based on a second decryption limitation obtained by updating a first decryption limitation, and a first encryption section for encrypting the contents using the contents key and outputting the encrypted contents. The decryption device includes a second contents key generation section for generating the contents key from the second decryption limitation, and a first decryption section for decrypting the encrypted contents using the contents key generated by the second contents key generation section.

Abstract: A wireless transmitting apparatus according to the present invention, comprising: N (N is two or more integer) pieces of antennas capable of transmitting a wireless signal; and a selector which selects L (L is one or more integer, and L≦N) pieces of antennas from said N pieces of antennas and selects the types of signals to be transmitted from the selected L pieces of antennas.

Abstract: A surface acoustic wave device includes at least four surface acoustic wave elements that are arranged to have an unbalanced-to-balanced conversion function. In a surface acoustic wave element on the balanced side, the phase between the input and output terminals is 180 degrees shifted so that the phase difference between the outputs on the balanced side becomes substantially 180 degrees.

Abstract: A bidirectional transmission circuit for inputting/outputting a signal from/onto a bidirectional transmission line includes: a transceiver for transmitting/receiving a signal; a first element having an impedance; a second element being a short line; and a switching unit for coupling the transceiver to the bidirectional transmission line via the first element when the transceiver transmits a signal, and coupling the transceiver to the bidirectional transmission line via the second element when the transceiver receives a signal.

Abstract: A design aiding apparatus and a method, and a storage medium storing a design aiding program enable the efficient layout design of components in a multilayer wiring board formed by laminating a plurality of wiring layers. The design aiding apparatus includes (a) a first acquiring unit for acquiring information showing a first location in a lamination direction of the wiring layers, (b) a second acquiring unit for acquiring information showing a second location on a two-dimensional plane that is orthogonal to the lamination direction, and (c) a placement unit for generating information showing a space to be occupied when the component is placed in such a manner that a placement reference point of the component coincides with the second location that is on the two-dimensional plane including the first location. According to the above construction, the present invention is capable of aiding layout design of components in the wiring board.

Abstract: A surface acoustic wave device having an unbalanced-to-balanced conversion function, which is capable of improving balanced characteristics, includes a first resonator filter and a second resonator filter, having a plurality of interdigital transducers disposed along the propagation direction of a surface acoustic wave. The surface acoustic wave device has an unbalanced-to-balanced conversion function as a result of the phase of the second resonator filter being reversed by 180° with respect to that of the first resonator filter. The surface acoustic wave device further includes a first resonator connected in series to an unbalanced signal terminal side of the first resonator filter, and a second resonator connected in series to an unbalanced signal terminal side of the second resonator filter. The first resonator and the second resonator have different design parameters.

Abstract: A method for fabricating a semiconductor-mounting body having at least one semiconductor device mounted on a substrate and a sealing resin set in the gap between the substrate and the semiconductor device, has a first step of setting a flexibly deformable sheet on a face of the semiconductor device not facing the substrate; and a second step of generating an air-pressure difference between the side where the semiconductor device is not present and the side where the semiconductor device is present on the basis of the sheet so that the air pressure at the side where the semiconductor device is not present becomes higher than the side where the semiconductor device is present and pressurizing the semiconductor device by the sheet after the first step.

Abstract: An authentication communication system includes an storage medium having an area for storing digital information and an access device for reading/writing digital information from/into the area. The access device authenticates whether the storage medium is authorized according to a challenge-response authentication protocol in which scrambled access information generated by scrambling the access information which shows the area is used. The storage medium authenticates whether the access device is authorized. When the access device and the storage medium have authenticated each other as authorized devices, the access device reads/writes digital information from/into the area in the storage medium according to the access information separated from the scrambled access information by the access device.

Abstract: A signal line, being in a six-layer board and connecting terminal 102 of component 101 with terminal 115 of component 114, requires tamper-resistance. The signal line is composed of foil 103 on an outside layer, a via 104, foil 111 on the third layer, via 105, foil 112 on the fourth layer, via 106, and foil 113 on the sixth layer. Portions of the signal line that exist on outside layers are all hidden under circuit components. Foil 103 and an end of via 104 are placed under component 101 on first layer 116, an end of via 105 is placed under component 107 on layer 116, an end of via 106 is placed under component 108 on layer 116, the other end of via 104 is placed under component 109 on sixth layer 121, the other end of via 105 is placed under component 110 on layer 121, and foil 113 and the other end of via 106 are placed under component 114 on layer 121.

Abstract: A method for fabricating a semiconductor-mounting body having at least one semiconductor device mounted on a substrate and a sealing resin set in the gap between the substrate and the semiconductor device, has

Abstract: A surface acoustic wave apparatus includes three longitudinally-coupled-resonator-type interdigital transducers (IDTs) having a balanced-to-unbalanced conversion function, which are provided on a piezoelectric substrate in a direction in which a surface acoustic wave (SAW) propagates. Weighting is applied to at least one of the IDTs. For example, among the electrode fingers of the IDT located on the left side, an apodization-weighted electrode finger is provided for one of the electrode fingers positioned adjacent to the central IDT.

Abstract: A recess portion 12 and a thick outer peripheral portion 13 are formed in an upper surface of a bottom plate 1. A recess portion 21 is formed in a lower surface of a cover 2. The recess portions 12 and 21 have configurations corresponding to a combination of a tarsal portion of a foot covering an area from a heel to substantially a center portion of a foot and a metatarsal portion of the foot covering an area from the center portion to roots of toes of the foot, respectively. A plurality of blades 11 are integrally formed on a surface of the recess portion 12, extend in directions perpendicular to a longitudinal direction of the bottom plate and are slanted toward a heel portion of the bottom plate. The welded portions 3 and 4 of the upper surface of the bottom plate 1 and the lower surface of the cover, which directly surround the respective recess portions and have uniform width, are welded together by a high frequency welder and fluid is sealed in a space defined by the recess portions 12 and 21.

Abstract: A design aiding apparatus and a method, and a storage medium storing a design aiding program enable the efficient layout design of components in a multilayer wiring board formed by laminating a plurality of wiring layers. The design aiding apparatus includes (a) a first acquiring unit for acquiring information showing a first location in a lamination direction of the wiring layers, (b) a second acquiring unit for acquiring information showing a second location on a two-dimensional plane that is orthogonal to the lamination direction, and (c) a placement unit for generating information showing a space to be occupied when the component is placed in such a manner that a placement reference point of the component coincides with the second location that is on the two-dimensional plane including the first location. According to the above construction, the present invention is capable of aiding layout design of components in the wiring board.

Abstract: A decryption device includes: an internal-key storage section for storing an internal-key; a content-key storage section for storing a content-key; a determination section for determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different; and an operation section, the operation section including a first decrypting section which, when an encrypted content-key is input to the operation section, decrypts the encrypted content-key using the internal-key so as to obtain a content-key and stores the content-key in the content-key storage section, and a second decrypting section which, when an encrypted content is input to the operation section and the determination section determines that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, decrypts the encrypted content using the current value of the content-key storage section as a c

Abstract: An aluminum alloy for use in castings, comprising 0.0005-0.01 weight % of Fe, 0.0005-0.01 weight % of Si, 2.5-6.5 weight % of Cu, 0.10-0.50 weight % of Mg, 0.001-0.40 weight % of Mn, 0.10-0.50 weight % of Ti, 0.20-1.2 weight % of Ag, 0.002-0.01 weight % of B, no more than 0.01 weight % of any other individual component aside from Al, and the balance Al. The aluminum alloy is thereby designed to provide improved toughness without detracting from tensile strength, proof stress, and hardness.