Abstract:
PROBLEM TO BE SOLVED: To provide an antenna array control method capable of automatically, quickly, and accurately finding a radiation pattern preferable for communication with a client terminal, and an access point using the same.SOLUTION: There is provided an antenna array control method and an access point using the same. The antenna array control method comprises the steps of: selecting at least one packet as at least one detection packet (packet) per detection periodic interval; transferring a detection packet using one radiation pattern among a plurality of radiation patterns to be detected in an antenna array; calculating a packet error rate in all the radiation patterns to be detected; and selecting a radiation pattern having the lowest packet error rate from among all the radiation patterns as a radiation pattern preferable for the antenna array.
Abstract:
PROBLEM TO BE SOLVED: To reduce power consumption of an apparatus without changing a circuit configuration or a component.SOLUTION: A first power supply module 10 outputs a first voltage Vosufficient to start a relay 210. A second power supply module 20 outputs a second voltage Vothat is a voltage of not more than the first voltage Voand that is a voltage for keeping a starting state of the relay 210 as a starting state of the relay 210. A control module 40 controls the first power supply module 10 or the second power supply module 20 through a switching circuit 30 so as to be connected with the relay 210.
Abstract:
PROBLEM TO BE SOLVED: To provide a docking device with a telephone exchange function by which a user can utilize a mobile phone without holding it in a house or an office or the like.SOLUTION: A docking device 1 with a telephone exchange function includes: a docking base 11 provided so as to mount a mobile phone 2 connectably and removably; a telephone communication interface 12 provided to be coupled to a fixed-line telephone device 3 and to receive a dialing signal therefrom; a processor 13 connected to the docking base 11 to receive an incoming call signal from the mobile phone 2 via the docking base 11; and an exchange module 14 connected to the processor 13 to receive the incoming call signal, and connected to the telephone communication interface 12 to receive the dialing signal.
Abstract:
PROBLEM TO BE SOLVED: To provide an antenna array control method capable of automatically, quickly, and accurately finding a radiation pattern preferable for communication with a client terminal, and an access point using the same.SOLUTION: An antenna array control method comprises the steps of: selecting a packet per detection periodic interval; transferring a detection packet using a radiation pattern; selecting a radiation pattern having the lowest packet error rate; acquiring a preliminary radiation pattern set on the basis of the current probability that each radiation pattern becomes a preferable radiation pattern after a detection period ends; acquiring change probabilities of all radiation patterns in the preliminary radiation pattern set; acquiring a target pattern set on the basis of these change probabilities, a set of data indicating a movement change level and a movement change tendency of a client terminal, and the preliminary radiation pattern set; and adjusting a detection period and a detection radiation pattern set according to whether the target pattern set is equal to the detection radiation pattern set.
Abstract:
PROBLEM TO BE SOLVED: To provide a terminal device with an imaging function and an auto-focusing method for projection thereof so that a terminal device automatically focuses on an image projected by a projection unit.SOLUTION: The terminal device with an imaging function includes a projection unit, an image receiving unit, and a processing unit. The method of auto-focusing for projection comprises: controlling the projection unit to project images on plural projective positions along an optical axis; controlling the image receiving unit to receive as plural candidate images the images projected on the projective positions by the projection unit, the candidate images having one-to-one correspondence to the projective positions; capturing the plural candidate images received by the image receiving unit to analyze definitions of the candidate images; regarding the candidate image with the greatest definition as a focus image and the projective position corresponding to the focus image as a focus position; and then controlling the projection unit to project the image from the focus position.
Abstract:
PROBLEM TO BE SOLVED: To provide a linearly polarized light converter that can lower production cost and use different types of non-cylindrical shape light sources. SOLUTION: The linearly polarized light converter uses a polarization recycling mechanism for separating a first linearly polarized wave of an unpolarized wave. The unpolarized wave includes a first linearly polarized wave and a second linearly polarized waves orthogonal to the first linearly polarized wave and that is produced by a light source. The linearly polarized light converter includes a polarized beam splitter adapted to be disposed on a first side of the light source for receiving the unpolarized wave and a metallic reflector disposed on a second side of the light source that is opposite to the first side. The unpolarized beam splitter transmits the first linearly polarized wave and reflects the second linearly polarized wave. The metallic reflector includes a metal layer and a plurality of metal particles distributed over the metal layer that cooperatively define a rough surface which converts the reflected second linearly polarized wave into an elliptical polarized wave and which reflects the elliptical polarized wave. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the power conversion efficiency of the whole power allocation device by reducing use of an auxiliary power supply module having low power conversion efficiency. SOLUTION: The power allocation device includes a first switch element and a controller. The first switch element has a first connection terminal and a second connection terminal connected respectively to an output terminal of a power supply module having relatively high conversion efficiency among a plurality of power supply modules and an output terminal of a power supply module having relatively low conversion efficiency, and is connected or disconnected to allocate electric power output from the power supply module having the relatively high conversion efficiency to the predetermined number of loads simultaneously. The controller is coupled to the first switch element and generates a control signal to control the connection or disconnection state of the first switch element. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an image forming device wherein, in the case that a sheet of copy paper and a document and the like is jammed in a paper conveyance path, the paper can be easily removed from it without operating a motor. SOLUTION: This image forming device has a rocker arm having both ends in which one of the ends is pivoted at a first predetermined position and rotatable on a support shaft. In an interlocking relation of gears, the gears are arranged to be rotatably pivoted by the support shaft from a near side to a far side to the motor wherein a first gear is constituted to be drivable in a normal operation and to be capable of rotating the rocker arm, a second gear is attached to rotate while being driven by the rotation of the first gear in normal operation and a third gear attached to rotate while meshing with the second gear in the normal operation to stop the rotation of the rocker arm. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To considerably increase the number of optical-electronic semiconductors to be stored in an oven to efficiently improve the production rate of encapsulating process. SOLUTION: A packaging apparatus 1 for optical-electronic semiconductors includes: a mold base 11 which has a longitudinal receiving space 110 and has at least one first air-vent 111 at the bottom thereof and has a predetermined width in a shorter side direction; an encapsulating module 12 which is attached to the mold base 12 and has a press plate 121 engaged with the mold base 11, a plurality of columns of molding bodies 122 penetrating the press plate 121 and received in the receiving space 110, and a plurality of columns of lead frames 123 connected to the plurality of columns of molding bodies 122; and an I beam 13 which is placed above the encapsulating module 12 and has a plurality of holding slots 133 to hold the plurality of columns of lead frames 123. COPYRIGHT: (C)2009,JPO&INPIT