摘要:
A video recording/reproducing apparatus having an HDD to a mobile device using removable media such as a BD. Data can be removed and stored by copying and moving data recorded on the HDD onto these removable media or in the direction opposite thereto. When vibrations occurs on a recording medium inserted into the HDD, DVD drive, and BD drive due to foreign elements, a copy or movement of data tends to fail. To solve the problem, provided is an apparatus or method including a portable power source, a recording unit for recording information on a removable medium and a built-in medium, a dubbing unit for copying or moving data therebetween, and a detector for detecting acceleration, wherein when the acceleration detected by the detector has a predetermined value, the dubbing unit operates between the recording media.
摘要:
Impact detecting resistors (141), (143) of an impact detecting circuit (104) detect a counter electromotive force of a step motor (105) generated due to an impact. This counter electromotive force is amplified applying a predetermined period and a predetermined chopper-width by a chopper-amplifying waveform shaping circuit (118). Therefore, even a light impact can be detected. Inverters (145), (146) compare these impact detecting signals (S22), (S23) with a threshold value and detect an impact when the signals exceeds the threshold value. A controlling circuit (102) provides a lock pulse to the step motor (105) through signal lines (AA), (BB) when an impact is detected, brakes rotation of a rotor (162) thereby preventing a deviation of the time displayed with a second hand (106).
摘要:
A power supply for electronic timepieces is constituted of a mechanical power generating section (1), a power storing section (30) composed of a large-capacity secondary battery which stores power generated by the section (1), a voltage detecting section (4) which detects the voltage at the section (30), an overcharging preventive section (5) which is controlled by the section (4) and permits the electric current generated by the section (1) to flow therethrough, a diode (2) connected between the sections (1 and 5), and a switching transistor (7) which is connected between the sections (5 and 30), and turned off when the section (5) starts to discharge so as to improve the voltage resistance and charging efficiency.
摘要:
An imaging apparatus includes an imaging unit that receives image data in response to a photographic subject, a face detection unit that detects a human face from the received image data, a photometry unit that performs a photometry of the detected human face, an exposure control unit that calculates a target exposure amount in accordance with a photometry result to calculate an exposure control value, and an exposure correction control unit that determines an exposure in response to the target exposure amount, wherein an exposure correction unit performs an exposure correction by using an exposure target determined by the exposure correction control unit, as an area smaller than a domain of the human face detected by the face detection unit is set to the photometry area.
摘要:
When a stem switch (8) is pulled out, a switch signal forming unit 9 outputs a signal (RS) indicating that effect, a control unit (13) receives the signal (RS) and starts clocking by a timer (13a). The control unit (13) receives a signal (HS) output from an electricity-generation detecting unit (12) within the clocking period, detects the electricity generating operation of an electricity generating unit (10), and outputs a signal (CS) indicating that effect. A narrow pulse forming unit (7) forms a narrow pulse having a width of such a degree that the motor (5) is not driven based on the signal (CS), and outputs the narrow pulse to a motor driving circuit (4). The motor driving circuit (4) flows a fine current through a coil (4a) which drives the motor (5) based on the narrow pulse. An external device detects a variation of the narrow pulse, thereby confirming whether electricity is generated.
摘要:
In detecting power generation of an electronic timepiece having a conventional power generating unit, voltage output by the power generating unit is limited by output from a storage unit since the power generating unit and the storage means are connected when the power generation state is detected, and voltage equal to or larger than voltage output from the storage unit cannot be detected. An electronic timepiece is provided which can overcome the problem and can check an operation of the power generating unit securely irrespective of the state of the storage means. In an electronic timepiece driven by power stored from a power generating unit (1) into a storage unit (4), the electronic timepiece includes a power generation detecting unit (2) that detects a power generation state of the power generating unit (1) and a switch unit (7) that separates the power generating unit (1) and the storage unit (4) when the power generation state of the power generating unit (1) is detected. In this case, the switch (7) between the power generating unit (1) and the storage unit (4) is controlled to OFF so that the output from the power generating unit (1) cannot be limited by the output from the storage unit (4).
摘要:
To extend the clock operation duration of a multi-functional rechargeable electronic watch, and to provide a rechargeable electronic watch that would not affect the feeling of use of said rechargeable electronic watch. A rechargeable electronic watch (10) operating with an energy source comprising a power supply (26) including a power generation means (1) and a power storage means (2) charged with electric energy from said power generation means (1), said rechargeable electronic watch comprising a watch circuit (5) for counting or operating hour information or function information or the like and outputting information, a display means (11) for displaying hour information or function information or the like based on output signal from said watch circuit, a power generation magnitude detecting means (3) for detecting the power generation volume of said power generation means (1), and a control means (5) for controlling the operation of said watch circuit (5) according to said power generation magnitude, wherein said watch circuit (5) is driven by at least one clock operation mode selected from a plurality of clock operation modes different in power consumption provided by said watch circuit (5).
摘要:
An analog-type electronic watch with an electrical generating apparatus, this watch having a load compensation function means, and completing avoiding the adverse influence of magnetic noise which accompanying electrical generation operation. This watch has an electrical generator which operates intermittently, an electrical generation detection means which detects electrical generation by the electrical generator based on a prescribed relationship to the operation of a drive judging means, and a control means which, when the driving judging means detects electrical generation by the electrical generator, supplies a compensation drive pulse to a drive circuit, regardless of the judgment results of the driving judging means.
摘要:
It is an object of this invention to attain reliable starting characteristics and stable rotation performance of a motor in a motor of a phase synchronization driving type. To achieve this object, according to this invention, there is provided a motor driving apparatus having a stepping motor constituted by a stator with at least two poles, a rotor having a permanent magnet with at least two poles, and a driving coil magnetically coupled to the stator, a driving pulse generation means for outputting a driving pulse signal for driving the stepping motor, a driving circuit for supplying a driving current to the driving coil on the basis of the signal from the driving pulse generation means, a voltage detection circuit for detecting a counter electromotive voltage generated upon rotation of the rotor, and a pole position detection means for detecting the pole position of the rotating rotor with respect to the rotor on the basis of a detection signal generated by the voltage detection circuit, the driving pulse generation means controlling the output timing of the driving pulse signal on the basis of the detection signal from the pole position detection means, characterized in that the pole position detection means stops outputting the driving pulse signal on the basis of the detection signal from the voltage detection circuit which is detected during the output period of the driving pulse signal, and outputs a driving pulse signal having a phase opposite to that of the driving pulse signal.
摘要:
A data carrier system which uses a power sourceless electromagnetically coupled data carrier, wherein two-way data communication is made possible between a fixed facility and a data carrier. Provision is made for a synchronizing means which renders the frequencies and phases of AC magnetic fields emitted from the fixed facilities to be the same among a plurality of fixed facilities, such that interference will not take place among the plurality of fixed facilities even when they are arranged close to one another. Moreover, the electric power induced in the antenna of the fixed facility by the AC magnetic field generated from the data carrier is synchronously detected by using a synchronizing signal controlled by said synchronizing means.