Abstract: A navigation satellite system reception apparatus includes a navigation satellite signal reception unit that calculates a first reception position, and a control unit that calculates an initial value of the first reception position and an orbit position of each of four or more navigation satellites, calculates, based on the calculated first reception position, the calculated orbit position, and time information from the first navigation satellite signals, arrival time of each of the first navigation satellite signals, extracts, based on the calculated arrival time, a second navigation satellite signal, calculates, based on the extracted second navigation satellite signal, a second reception position, recursively performs, by using the calculated second reception position, a calculation process of the arrival time and an extraction process of the second navigation satellite signal, and performs, based on a second navigation satellite signal extracted at end of recursive processing, the positioning process or t

Abstract: A navigation satellite system reception apparatus including a satellite orbit information acquisition unit that acquires orbit information of a navigation satellite, an installation position information acquisition unit that acquires position information of an installation position, an azimuth meter that acquires azimuth information of an azimuth in which a wall surface of a nearby obstruction extends, and an azimuth mask generation unit that calculates a mask region for selecting a navigation satellite to be a target of processing based on the azimuth information. A positioning and time synchronization processing unit calculates an azimuth and an angle of elevation of each navigation satellite based on the orbit information and the position information, selects a navigation satellite to be a target of processing, and performs at least one of the positioning processing or the time synchronization processing based on a received navigation satellite signal.

Abstract: A navigation satellite system reception apparatus including a satellite orbit information acquisition unit that acquires orbit information of a navigation satellite, an installation position information acquisition unit that acquires position information of an installation position, an azimuth meter that acquires azimuth information of an azimuth in which a wall surface of a nearby obstruction extends, and an azimuth mask generation unit that calculates a mask region for selecting a navigation satellite to be a target of processing based on the azimuth information. A positioning and time synchronization processing unit calculates an azimuth and an angle of elevation of each navigation satellite based on the orbit information and the position information, selects a navigation satellite to be a target of processing, and performs at least one of the positioning processing or the time synchronization processing based on a received navigation satellite signal.

Abstract: A navigation satellite system reception apparatus includes a navigation satellite signal reception unit that calculates a first reception position, and a control unit that calculates an initial value of the first reception position and an orbit position of each of four or more navigation satellites, calculates, based on the calculated first reception position, the calculated orbit position, and time information from the first navigation satellite signals, arrival time of each of the first navigation satellite signals, extracts, based on the calculated arrival time, a second navigation satellite signal, calculates, based on the extracted second navigation satellite signal, a second reception position, recursively performs, by using the calculated second reception position, a calculation process of the arrival time and an extraction process of the second navigation satellite signal, and performs, based on a second navigation satellite signal extracted at end of recursive processing, the positioning process or t

Abstract: A motor-assisted bicycle powered by both a motor and man power with a transmission reduction mechanism for transmitting the rotation of a motor as well as for reducing speed. The motor-assisted bicycle also has a driving wheel capable of being driven by a driving force delivered from the transmission reduction mechanism and a clutch for transmitting a one-way driving force. The clutch is provided within the transmission reduction mechanism, thereby making the entire driving portion of the motor-assisted bicycle more compact.

Abstract: A vehicle having a man power driving system in which a driving force by man power is applied through a gear change mechanism to rotate a wheel, an a motor driving system in which the wheel is rotated by a driving force of a motor. The man power driving system is equipped with a torque detector for detecting a man power driving force so as to drive the motor according to a magnitude of the man power driving force detected by the turque detector. A particularly durable gear change mechanism is not required, and thus a common gear change mechanism for bicycle can be used, thereby simplifying construction.

Abstract: A motor with a stator and a rotor in which the stator consists of a plurality of divided members. The motor comprises: a pair of magnetic pole cores having poles composing two mutually opposite sides of the stator and arms extending in both directions from the poles, the poles being wound with windings; and yoke cores arranged between mutually opposite arms of the magnetic pole cores formed at both ends of the yoke cores. The curved portions which are proximate to the arms of the above-mentioned magnetic pole cores are formed at both ends of the yoke cores. The dividing of the stator allows the workability to wind windings on the poles to be improved, and the blanking of the yoke cores within the width of the magnetic pole cores allows the yield of to be improved, whereby reducing the costs. A method of manufacturing the motor is also disclosed.

Abstract: A magnet motor stator where a magnet of a pole of a stator includes multiple magnets. Each magnet can be flat and made from rare-earth materials. It is thus possible to manufacture these magnet motor stators at a lower cost accompanied by a reduction in size and weight for the magnet motor.

Abstract: An electric vacuum cleaner comprises a main body having an electric blower and a dust collecting chamber, a triac controlling the electric blower, a floor nozzle coupled to the main body, a pressure sensor sensing the pressure in the vicinity of a suction port of the electric blower, a current sensor sensing the current in a rotary brush driving motor of the floor nozzle, and a microcomputer. The microcomputer performs a fuzzy inference on the outputs of the pressure sensor and the current sensor to determine the duty cycle of the blower control triac on the basis of the result of the inference. By doing this, supply of power to the electric blower in accordance with the condition of a floor surface is realized.

Abstract: A wireless low-frequency medical treatment device having a sending section for sending various data for low-frequency medical treatment and a pulse applying section for receiving the above data, for generating a low-frequency pulse corresponding to the data and for applying the pulse on a living body, the device being characterized in that the pulse applying section comprises a plurality of pulse applying bodies to be pasted on the living body; a low-frequency pulse generating device for generating a low-frequency pulse to be supplied to the pulse applying bodies in accordance with data sent from the sending section; a detecting device for detecting that at least one of the pulse applying bodies comes off from the living body; a pulse stopping device for stopping generation of the low-frequency pulse when the detecting device detects that at least one of the pulse applying bodies comes off from the living body; and a pulse recovery device for increasing a potential of the low-frequency pulse gradually from a

Abstract: A wireless low-frequency medical treatment device having a sending section for sending data for low-frequency medical treatment and a pulse applying section for receiving the above data and applying a low-frequency pulse corresponding to the data on a living body, the device being characterized in that the sending section comprises a plurality of sending coils, whose axes cross each other in a space, and a sending coil driving circuit for supplying the sending coils with resonating currents having different phases, respectively, the currents indicating a signal corresponding to the data; and that the pulse applying section comprises a receiving coil for receiving the signal sent from the sending coils through electromagnetic induction.

Abstract: An electrophotographic copying machine having an editorial function includes an original table formed on the top surface of a main unit, and an original is placed thereon while facing upward. A shaft is installed in the vicinity of one end of the top surface of the main unit, and this shaft supports rotatably an optical system for scanning the original so as to be able to contact with or part from the original table. A transparent tablet is placed between the original and the optical system, and this table works in cooperation with a write pen. After placing the original, an operator puts the tablet thereon and operates the pen to specify the position of the original intended to be edited. Responsively, the positional data thereof is outputted from the tablet. In a trimming mode or a masking mode, LEDs constituting a partial eraser are lighted in response to the positional data, and an electrostatic latent image on a photosensitive drum is modified.

Abstract: This invention relates to an electrostatic developing method for a copier, a printer or the like, and more particularly to a developing method using a one-component developer. This invention can prevent inverse electrification of the developer, which is one of the main causes of producing foggy and a fringed images, by forming the developer into a very thin layer with a doctor blade and the like, can obtain a sharp and fine image by pressing a developer holder to a latent image holder and impressing an AC bias between them, can prevent the fringe image by eliminating the unnecessary developer which adheres to the latent image holder, and can realize a high-speed development without complicated apparatus.

Abstract: A power converter is disclosed which is used for converting an a.c. power to a d.c. power or vice versa, and which comprises a first converter unit operated at a variable control angle with phase advanced to an input a.c. source voltage, and a second converter unit operated at a variable control angle with phase lagged to the input a.c. source voltage and having a d.c. side terminal connected in series to that of the first converter unit. At least one additional converter unit having a d.c. side terminal connected in seriesto those of the first and second converter units is further provided in accordance with the invention. The additional converter unit is operated at its bypass mode or a fixed control angle corresponding to the maximum forward or reverse conversion limit. The power converter of the above-mentioned construction enables its output level to be controlled continuously over a wider range without degrading its electric property than the conventional power converter.