Abstract: A low pass filter includes a first input/output terminal, a second input/output terminal, a signal line, inductors connected in the signal line, and capacitors connected between the signal line and ground. In the signal line, a capacitor is connected in parallel to the inductor that is connected closest to the first input/output terminal, and the inductor and the capacitor define a first parallel resonator.

Abstract: A diplexer includes a multilayer substrate, first, second, and third terminals, and a ground terminal provided on the multilayer substrate. The first filter is between the first terminal and the second terminal, the second filter is between the first terminal and the third terminal. An interlayer spacing of the multilayer substrate includes a first filter ground electrode, a second filter ground electrode, and a shield ground electrode shielding between the first filter and the second filter. The ground terminal includes a first filter ground terminal connected to the first filter ground electrode, a second filter ground terminal connected to the second filter ground electrode, and a shield ground terminal connected to the shield ground electrode.

Abstract: A diplexer includes a multilayer substrate, first, second, and third terminals, and a ground terminal provided on the multilayer substrate. The first filter is between the first terminal and the second terminal, the second filter is between the first terminal and the third terminal. An interlayer spacing of the multilayer substrate includes a first filter ground electrode, a second filter ground electrode, and a shield ground electrode shielding between the first filter and the second filter. The ground terminal includes a first filter ground terminal connected to the first filter ground electrode, a second filter ground terminal connected to the second filter ground electrode, and a shield ground terminal connected to the shield ground electrode.

Abstract: A low pass filter having an attenuation pole includes at least inductors disposed on a series arm which connects an input terminal and an output terminal. The inductors are wound inductors mounted on a first surface of a multilayer body. A winding axis of one of the wound inductors is perpendicular or substantially perpendicular to a winding axis of the other one of the wound inductors.

Abstract: A polar-type low pass filter includes a low pass filter portion and first, second and third ground conductors, in a laminated body. The low pass filter portion includes parallel resonant circuits including first, second, third and fourth capacitors and inductors, in a series arm, and at least capacitors in a parallel arm thereof. Pattern conductors configuring the first, second, third and fourth capacitors face the first ground conductor and so forth, in a z-axis direction.

Abstract: A band pass filter circuit includes an input terminal, an output terminal, a signal line, and a plurality of main LC parallel resonators. First ends of the plurality of main LC parallel resonators are connected to the signal line, and second ends of the plurality of main LC parallel resonators are connected to one another. At least one attenuation-pole-defining sub LC parallel resonator including an inductor and a capacitor is inserted between a ground and the connected second ends of the plurality of main LC parallel resonators.

Abstract: An electronic apparatus equipped with a power source, a storage section, a memory management section, and a control section. The storage section is provided with a predetermined memory space. The memory management section judges operation condition of an application program and locates the application in the predetermined memory space, when judged to be a predetermined operation condition. The control section suspends power supply to the predetermined memory space. Accordingly, power consumption in memory can be reduced.

Abstract: A filter element includes a laminate including insulator layers. A ring conductor pattern is provided on one of the insulator layers. Linear conductor patterns of a first inductor having a helical shape with an axial direction thereof being a laminating direction of the laminate and linear conductor patterns of a second inductor having a helical shape with an axial direction thereof being the laminating direction are provided on predetermined ones of the insulator layers. The ring conductor pattern is arranged such that inner regions of the linear conductor patterns of the first inductor and inner regions of the linear conductor patterns of the second inductor are included in an inner region of the ring conductor pattern.

Abstract: A band pass filter circuit includes an input terminal, an output terminal, a signal line, and a plurality of main LC parallel resonators. First ends of the plurality of main LC parallel resonators are connected to the signal line, and second ends of the plurality of main LC parallel resonators are connected to one another. At least one attenuation-pole-defining sub LC parallel resonator including an inductor and a capacitor is inserted between a ground and the connected second ends of the plurality of main LC parallel resonators.

Abstract: In order that even a wireless terminal whose an unique ID is not registered in the filter list can use simply the access point without a prior setting task by user, a communication device includes access point means, filtering disabling means, unique ID registration means and filtering enabling means. The access point means connects a wireless terminal with at least one of a lower network and an upper network. The filtering disabling means disables a filtering which prevents connecting with an unregistered wireless terminal whose an unique ID is not registered in a filter list. The unique ID registration means acquires the unique ID of the wireless terminal and registers the acquired unique ID in the filter list, upon a state where the filtering is disabling, if a connection request is received from the wireless terminal. The filtering enabling means enables the filtering after the unique ID of the wireless terminal is registered in the filter list.

Abstract: A low pass filter having an attenuation pole includes at least inductors disposed on a series arm which connects an input terminal and an output terminal. The inductors are wound inductors mounted on a first surface of a multilayer body. A winding axis of one of the wound inductors is perpendicular or substantially perpendicular to a winding axis of the other one of the wound inductors.

Abstract: A substantially loop-shaped inductor including a via electrode is arranged such that its loop surface is parallel to a mounting board. Thus, a direction of magnetic flux of the inductor is perpendicular to the mounting board, and influence of the magnetic flux on an adjacent electronic component is significantly reduced and minimized. In addition, the via electrode defines a principal portion of the inductor. Thus, an inductor with a great Q value is obtained, and the insertion loss of a laminated LC filter is significantly reduced and minimized.

Abstract: A polar-type low pass filter includes a low pass filter portion and first, second and third ground conductors, in a laminated body. The low pass filter portion includes parallel resonant circuits including first, second, third and fourth capacitors and inductors, in a series arm, and at least capacitors in a parallel arm thereof. Pattern conductors configuring the first, second, third and fourth capacitors face the first ground conductor and so forth, in a z-axis direction.

Abstract: A portable terminal device, comprises: a main body that comprises at least a first surface and a second surface; a display unit that displays display content; a first detection unit that detects, as a first position, a position on the first surface when an object comes into contact with or comes close to the first surface; a second detection unit that detects, as a second position, a position on the second surface when an object comes into contact with or comes close to the second surface; and a display control unit that instructs the display unit to enlarge or reduce the display content based on a detection result obtained by the first detection unit and the second detection unit.

Abstract: A filter element includes a laminate including insulator layers. A ring conductor pattern is provided on one of the insulator layers. Linear conductor patterns of a first inductor having a helical shape with an axial direction thereof being a laminating direction of the laminate and linear conductor patterns of a second inductor having a helical shape with an axial direction thereof being the laminating direction are provided on predetermined ones of the insulator layers. The ring conductor pattern is arranged such that inner regions of the linear conductor patterns of the first inductor and inner regions of the linear conductor patterns of the second inductor are included in an inner region of the ring conductor pattern.

Abstract: A portable telephone device (10) includes: a noncontact IC card communication unit (30) that performs a noncontact IC card communication; a vibration alert unit (22) that notifies the user by vibration that the noncontact IC card communication unit (30) is performing the noncontact IC card communication; and an IC card vibration alert control unit (44) that performs the control to regulate the vibration of the vibration alert unit (22) so that the vibration of the vibration alert unit (22) does not affect the communication state of the noncontact IC card communication unit (30).

Abstract: A substantially loop-shaped inductor including a via electrode is arranged such that its loop surface is parallel to a mounting board. Thus, a direction of magnetic flux of the inductor is perpendicular to the mounting board, and influence of the magnetic flux on an adjacent electronic component is significantly reduced and minimized. In addition, the via electrode defines a principal portion of the inductor. Thus, an inductor with a great Q value is obtained, and the insertion loss of a laminated LC filter is significantly reduced and minimized.

Abstract: In order that even a wireless terminal whose an unique ID is not registered in the filter list can use simply the access point without a prior setting task by user, a communication device includes access point means, filtering disabling means, unique ID registration means and filtering enabling means. The access point means connects a wireless terminal with at least one of a lower network and an upper network. The filtering disabling means disables a filtering which prevents connecting with an unregistered wireless terminal whose an unique ID is not registered in a filter list. The unique ID registration means acquires the unique ID of the wireless terminal and registers the acquired unique ID in the filter list, upon a state where the filtering is disabling, if a connection request is received from the wireless terminal. The filtering enabling means enables the filtering after the unique ID of the wireless terminal is registered in the filter list.

Abstract: A portable telephone device (10) includes: a noncontact IC card communication unit (30) that performs a noncontact IC card communication; a vibration alert unit (22) that notifies the user by vibration that the noncontact IC card communication unit (30) is performing the noncontact IC card communication; and an IC card vibration alert control unit (44) that performs the control to regulate the vibration of the vibration alert unit (22) so that the vibration of the vibration alert unit (22) does not affect the communication state of the noncontact IC card communication unit (30).

Abstract: A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground electrode is provided on the second main surface of the dielectric substrate or inside of the dielectric substrate, so as to be opposed to the metallic film through a dielectric layer. A pair of input-output coupling circuits is connected to the metallic film.