摘要:
An object of the present invention is to provide an electronic device which is capable of conducting a proximity noncontact communication even if charging of a secondary battery is not fully completed and also whose secondary battery never falls into an overdischarge state during the proximity noncontact communication. An electronic device (2) employs a secondary battery (28), which is rechargeable by a charger (3) that gives a charge of electricity in a noncontact manner, as a power source, and is capable of conducting a proximity noncontact communication with the charger (3). The electronic device (2) repeats a charging process, in which this equipment charges the secondary battery (28) for a predetermined period (Tb1) by receiving a supply of an electric power from the charger (3) via a noncontact power-receiving secondary coil (22), and a communication process, in which this equipment conducts a data communication for a predetermined period (Ta1)) when a voltage of the secondary battery (28) at a time of charging start is below a predetermined value (Va), and also repeats a charging process, in which this equipment charges the secondary battery (28) for a predetermined period (Tb2) by receiving a supply of the electric power from the charger (3) via the noncontact power-receiving secondary coil (22), and a communication process, in which this equipment conducts the data communication for a predetermined period (Ta2)(>Ta1) when the voltage of the secondary battery (28) at a time of charging start is more than a predetermined value (Va).
摘要:
An object of the present invention is to provide an electronic device which is capable of conducting a proximity noncontact communication even if charging of a secondary battery is not fully completed and also whose secondary battery never falls into an overdischarge state during the proximity noncontact communication. An electronic device (2) employs a secondary battery (28), which is rechargeable by a charger (3) that gives a charge of electricity in a noncontact manner, as a power source, and is capable of conducting a proximity noncontact communication with the charger (3). The electronic device (2) repeats a charging process, in which this equipment charges the secondary battery (28) for a predetermined period (Tb1) by receiving a supply of an electric power from the charger (3) via a noncontact power-receiving secondary coil (22), and a communication process, in which this equipment conducts a data communication for a predetermined period (Ta1) when a voltage of the secondary battery (28) at a time of charging start is below a predetermined value (Va), and also repeats a charging process, in which this equipment charges the secondary battery (28) for a predetermined period (Tb2) by receiving a supply of the electric power from the charger (3) via the noncontact power-receiving secondary coil (22), and a communication process, in which this equipment conducts the data communication for a predetermined period (Ta2)(>Ta1) when the voltage of the secondary battery (28) at a time of charging start is more than a predetermined value (Va).
摘要:
An object of the present invention is to provide an electronic device capable of receiving payment of a charge required for a charging process even though a secondary battery of the electronic device ran into an overdischarge state and also extricating itself from the overdischarge state, and a charger used for the same. A charger (3) executes a power transmission before it conducts a proximity noncontact communication with an electronic device (2), continues this power transmission until a preliminary charging stop notification signal is sent from the electronic device (2), and conducts the proximity noncontact communication regarding to a billing process with the electronic device (2) when the preliminary charging stop notification signal is sent. After the communication regarding to the billing process is ended, the charger (3) gives a charge of electricity to the electronic device (2) again. The electronic device (2) charges a secondary battery (28) by using the power transmission, then executes the charging up to a level at which the proximity noncontact communication regarding to the billing process can be conducted, then conducts the proximity noncontact communication regarding to the billing process with the charger (3), and then restarts the power transmission from the charger (3) to execute the charging until the secondary battery (28) is fully charged. In this manner, the noncontact charging and the proximity noncontact communication are executed between the electronic device (2) and the charger (3) in a time-division system.
摘要:
An object of the present invention is to provide an electronic device capable of receiving payment of a charge required for a charging process even though a secondary battery of the electronic device ran into an overdischarge state and also extricating itself from the overdischarge state, and a charger used for the same. A charger (3) executes a power transmission before it conducts a proximity noncontact communication with an electronic device (2), continues this power transmission until a preliminary charging stop notification signal is sent from the electronic device (2), and conducts the proximity noncontact communication regarding to a billing process with the electronic device (2) when the preliminary charging stop notification signal is sent. After the communication regarding to the billing process is ended, the charger (3) gives a charge of electricity to the electronic device (2) again. The electronic device (2) charges a secondary battery (28) by using the power transmission, then executes the charging up to a level at which the proximity noncontact communication regarding to the billing process can be conducted, then conducts the proximity noncontact communication regarding to the billing process with the charger (3), and then restarts the power transmission from the charger (3) to execute the charging until the secondary battery (28) is fully charged. In this manner, the noncontact charging and the proximity noncontact communication are executed between the electronic device (2) and the charger (3) in a time-division system.
摘要:
There is provided an electronic device for enabling the user to recognize the relative position of the electronic device to a power supply device such as a charger. An electronic device 11B includes a main coil 18 having a conductor wire wound around a main point 33 for receiving power for charging a secondary battery from a charger 12, a position detection coil 31 placed at a first point in the electronic device 11B, a position detection coil 32 placed at a second point in the electronic device 11B, and a position shift display section 39. If magnetic flux density detected by the position detection coil 31 is higher than magnetic flux density detected by the position detection coil 32, the position shift display section 39 provides notification of prompting the user to move the electronic device 11B from the second point to the first point, and if the magnetic flux density detected by the position detection coil 32 is higher than the magnetic flux density detected by the position detection coil 31, the position shift display section 39 provides notification of prompting the user to move the electronic device 11B from the first point to the second point.
摘要:
A display device includes a spectroscopic unit for making a corresponding spectral diffraction in accordance with wavelengths of light and an image display unit including a light valve which has a plurality of picture elements. The light valve receives the light-subjected to assortment by color with the spectroscopic unit and controls the light quantity of outgoing light, respectively, thereby passing any light of the three primary colors.
摘要:
A slide member of the present invention is characterized in that it has: a substrate, which is made of a metal; an intermediate layer, which is formed on at least one of the surfaces of the substrate, and which is composed a first resinous composition including a thermoplastic polyimide resin and a polyaryl ketone resin; and a superficial layer, which is formed on the intermediate layer, and which is composed of a second resinous composition including a polyaryl ketone resin.Since the slide member of the present invention is such that it is possible to form it at low temperature, the deterioration of the substrate is suppressed; moreover, it is a slide member having a superficial layer, which includes a polyaryl ketone resin which is good in terms of the adhesiveness to a substrate.
摘要:
A piezo-electric oscillator composed of a quartz crystal, an inverting amplifier connected across the quartz crystal, an output capacitor connected to an output side of the quartz crystal, and a plurality of input capacitors. The input capacitors are selectively coupled to the input side of the quartz crystal by means of an electronic switching means by which an output frequency of the quartz crystal is adjusted to a prescribed value.
摘要:
A stepping motor according to the present invention comprises a cylindrical permanent magnet on whose outer periphery N and S poles are alternately polarized, a rotatably-supported rotor, a plurality of stator cores having pole teeth arranged so as to face the permanent magnet, an exciting coil for rotating the rotor when the coil is turned on, and at least two protruded teeth serving as auxiliary poles which face the cylindrical surface of the permanent magnet so as to generate a detent torque when it is magnetized by the permanent magnet. And each of the protruded teeth faces the consecutive N an S poles of the permanent magnet.
摘要翻译:根据本发明的步进电机包括:外圆周N和S极交替极化的圆柱形永磁体,可旋转支撑的转子,具有以与永磁体相对的方式布置的极齿的多个定子铁心,令人兴奋的 线圈,用于当线圈接通时旋转转子;以及至少两个用作辅助极的突出齿,其与永磁体的圆柱形表面相对,以便当由永磁体磁化时产生制动转矩。 并且每个突出的齿面与永磁体的连续的N a S极。