摘要:
An acceleration sensor includes: a rectangular moving electrode; a pair of beams which connect to centers of two opposite sides of the moving electrode, and support the moving electrode freely swingably; and first and second fixed electrodes which are provided on one side and other side of a boundary line, respectively, and are arranged to be opposed to a front surface of the moving electrode at a predetermined interval. A straight line that connects the pair of beams to each other is taken as the boundary line. Then, on a back surface of the moving electrode, first and second recessed portions are formed on one side of the boundary line and the other side thereof, respectively.
摘要:
Arrangement of an internal component (not shown) arranged in the vicinity of the top side is different from that of the hinge side of an image element protective screen (2). An actuator (5) is fixed to the top side of the image element protective screen (2) and an actuator (4) is fixed to the hinge side of the image element protective screen (2). Since Arrangement of the internal component in the vicinity of the actuator is different, different sound pressure frequency characteristics or the like are experienced when each actuator is driven independently. When the actuators (4, 5) are driven simultaneously, sound pressure frequency characteristics and vibration frequency characteristics can be flattened. Isolation between the vibration speed of a vibrator near one actuator and the vibration speed of a vibrator in the region near the other actuator that are produced by respective actuators is set at 10 dB or above.
摘要:
A biological information detection sensor is provided by which it is possible to integrate multiple detection means, and it is possible to measure the biological information that is necessary in accordance with the usage state of the sensor used by the user while avoiding redundant information. The biological information detection sensor includes: a skin condition detection portion measuring at least one of a capacitance and an electric resistance change between engaged comb electrodes; a smell component detection portion measuring an electric resistance in accordance with objects absorbed on a selective sensitive membrane which is formed on a portion of the engaged comb electrodes; a temperature detection portion measuring an ambient temperature based on an electromotive force generated by a thermocouple which is formed by using at least two kinds of metallic materials and which is formed on a portion of the engaged comb electrodes; a switching means SW which compares the electromotive force generated by the thermocouple due to changes of the ambient temperature to a predetermined threshold, detects a contact state with an object having a heat source such as a biological body based on a comparison result and conducts switching operation of ON and OFF of the skin condition detection portion and the smell component detection portion based on the contact state.
摘要:
An acceleration sensor includes: a rectangular moving electrode; a pair of beams which connect to centers of two opposite sides of the moving electrode, and support the moving electrode freely swingably; and first and second fixed electrodes which are provided on one side and other side of a boundary line, respectively, and are arranged to be opposed to a front surface of the moving electrode at a predetermined interval. A straight line that connects the pair of beams to each other is taken as the boundary line. Then, on a back surface of the moving electrode, first and second recessed portions are formed on one side of the boundary line and the other side thereof, respectively.
摘要:
A relay device using a conductive fluid and having excellent switching response is provided. This relay device mainly comprises a laminate having an interior space, and formed by bonding a semiconductor substrate to an insulating substrate, at least two contacts exposed to the interior space, a diaphragm portion facing the interior space, a conductive fluid sealed in the interior space, and an actuator for elastically deforming the diaphragm portion. By forming the diaphragm portion on the semiconductor substrate, it is possible to reduce a driving force of the actuator needed to elastically deform the diaphragm portion, and obtain a volume change of the interior space with good response. This volume change causes a positional displacement of the conductive fluid in the interior space, thereby forming a conductive state or a non-conductive sate between the contacts.
摘要:
A DC/DC converter for an electronic equipment, e.g., a self-luminous display apparatus, includes a plurality of choke coils connected in parallel to each other to a DC power supply, a control circuit for controlling the ON/OFF operation of a switching element to control an output voltage of the DC/DC converter, and a changeover switch for selectively changing over the choke coils such that only one of the choke coils which has an inductance value corresponding to the output current of the DC/DC converter is effectively connected to the rectifying diode.
摘要:
In an intermittent receiving apparatus (10) for intermittently receiving a carrier signal having a carrier frequency (f.sub.R) and carrying data as an intermittent received carrier signal so as to alternate between a reception state for a reception time interval (T.sub.R) and a nonreception state for a nonreception time interval (T.sub.NR), an oscillation circuit (16) oscillates a reference signal having a reference frequency (f.sub.REF) equal to the reproduced clock frequency (F.sub.BTR). A clock supply circuit (20) intermittently supplies an output clock signal for a predetermined time duration including the reception time interval to a clock reproduction circuit (15) on the basis of the reference signal.
摘要:
A transmitter includes a phase-locked loop (PLL) circuit whose output is frequency modulated with a modulation signal. The modulated signal is amplified by an amplifier which is turned on only during a signal transmission of the transmitter. At a time when the amplifier is turned, the output frequency of PLL circuit fluctuates. To depress this frequency fluctuation, the transmitter includes a frequency fluctuation depressing (FFD) circuit. Upon the turning-on of the amplifier, FFD circuit applies a voltage change to the modulation signal so that the frequency fluctuation is depressed.
摘要:
A radio transceiver having a plurality of switching means such that the reception sensitivity and transmission level of the transceiver can be changed. An antenna switching circuit selectively couples the transmitter or receiver to the antenna in response to a transmit or receive mode. A first switch connects the antenna switching circuit to one of a plurality of different potential levels to control the switching of the antenna switching circuit. First and second potential levels are used to achieve first and second receive modes having different receive sensitivities, and a third potential level is used to achieve a transmit mode. A second switch selectively activates one of a first transmitter circuit providing transmission signals, a second transmitter circuit providing reduced transmission signals, and a receiver. A control circuit controls the switching of the first and second switch.
摘要:
A method of manufacturing pressurized, sealed containered food is disclosed, in which a predetermined quantity of low-temperature liquefied gas is charged through two or more low-temperature liquefied gas outlets into a succession of individual containers which have already a predetermined quantity of food including liquid content and are successively travelling upright with the top end open at a constant speed, and each container is subsequently sealed with a lid.