摘要:
In a direct coupling type power amplifier circuit comprising an input differential amplifier stage, a drive amplifier stage responsive to the output signal of the input differential amplifier stage dc-wise and ac-wise, and a push-pull output amplifier stage responsive to the output signal of the drive amplifier stage dc-wise and ac-wise, the input differential amplifier stage being supplied at one input electrode thereof with an input signal and at the other input electrode thereof with the output of the push-pull output amplifier stage through a negative feedback circuit network, the power amplifier circuit further comprises a bias circuit network for defining the dc bias current through the input differential amplifier stage and a delay circuit coupled between the bias circuit network and a power source voltage supply point. With this circuit arrangement, the dc bias current through the input differential amplifier stage is cut off to hold the whole power amplifier circuit non-responsive to the input signal during a predetermined time internal after the application of the power source voltage to the power source voltage supply point, the predetermined time interval being substantially determined by a predetermined delay time in the delay circuit and a predetermined constant voltage value of a constant voltage circuit component in the bias circuit network.
摘要:
A shooting game apparatus includes an LCD for displaying a target and an operating button for a player to perform an operation for shooting the target. For example, an enemy character is switched between an ineffective state in which it is never damaged even if an attack hits it, and an effective state in which it is damaged if an attack hits it. Different images are displayed depending on whether the target is in the ineffective state or in the effective state. In a case where the target is in the effective state, when a player character enters into a state of being continuously damaged because it is positioned an area where it receives continuous damage, for example, the target is switched into the ineffective state.
摘要:
An information processing apparatus includes an LCD and a touch panel, for example. On the LCD, a plurality of operation items making up of a series of operating procedures by means of a touch panel are displayed, and a current operation item out of them is highlight. Whether or not the current operation item is executed is determined on the basis of coordinate data via the touch panel, and whether or not a state attained by execution of a previous operation item has not been maintained is determined. In a case that it is determined that the previous operation item has not been maintained, the display of the current operation item is changed to a normal manner.
摘要:
A shooting game apparatus includes an LCD for displaying a target and an operating button for a player to perform operation of shooting the target. For example, an enemy character is switched between an ineffective state in which it is never damaged even if an attack hits it and an effective state in which it is damaged if an attack hits it. Different images are displayed depending on whether the target is in the ineffective state or in the effective state. In case where the target is in the effective state, when a player character enters into a state of being continuously damaged because it is positioned in such an area as it receives continuous damage, for example, the target is switched into the ineffective state.
摘要:
A film molding method and apparatus capable of shortening a mold cycle time and obtaining a molded product of an excellent quality. A method of hot-press molding a polyparaphenyleneterephthalamide (PPTA) film into a predetermined shape includes a first step of evaporating water from a PPTA film containing water at least 50% or more as a swelling agent, and obtaining an amorphous film having a density less than a predetermined density and a modulus in tension of about 70%; and a second process of hot-press molding the film for a predetermined time period by metal molds heated up to at least 330.degree. C. to crystallize the film to have a predetermined density specific to a PPTA film and produce an intrinsic physical value, and obtaining a molded product of the film. A film molding apparatus for performing the film molding method includes holes or slits opening at the surface of each of the metal molds, and an air suction unit and an air exhaust unit provided for each of the metal molds.
摘要:
A speaker, and its manufacturing method, is disclosed where the speaker includes a speaker component of an integral structure which has a damper made of a base member having concentric corrugations and an opening formed generally at the center thereof and a tinsel wire being disposed around the corrugations, a ring member made of insulating material mounted on the damper, and a voice coil bobbin inserted into the opening of the damper and having a wound coil electrically connected to one end of the tinsel wire. The speaker further includes a terminal lug mounted on the ring member and terminally connected to an end of an input lead wire at one end and to the tinsel wire at the other end, a diaphragm that is coupled to the voice coil bobbin, a speaker frame, and a magnetic circuit fixed to the speaker frame. This speaker and its method of manufacture provide an improved speaker having a damper with a conductive member, reducing the man power required for mounting the input terminal, and improving the quality of the product.
摘要:
A plasma treatment method comprising exhausting a process chamber so as to decompress the process chamber, mounting a wafer on a suscepter, supplying a process gas to the wafer through a shower electrode, applying high frequency power, which has a first frequency f1 lower than an inherent lower ion transit frequencies of the process gas, to the suscepter, and applying high frequency power, which has a second frequency f2 higher than an inherent upper ion transit frequencies of the process gas, whereby a plasma is generated in the process chamber and activated species influence the water.
摘要:
An antenna that comprises a rod, a movable coil, and a holding section which holds the movable coil in a manner that allows the movable coil to slide in and out of the holding section. When the movable coil is drawn into the holding section, the holding section tunes to a particular desired frequencies in the upper portion of the VHF band and the UHF band; for example, 144 MHz and 430 MHz. When the movable coil is out of the holding section, the holding section, the rod, and the portion of the movable coil outside the holding section form antenna element of a center-loading type that tunes to frequencies in the HF band and the lower portion of the VHF band; for example, frequencies in the range of 3MHz to 50MHz. The tuning frequency is varied by sliding the position of the coil.
摘要:
A speaker and its manufacturing method capable of reducing a man power required for mounting an input terminal and improving the product quality. The speaker manufacturing method uses a damper with a conductive member made of flat knitted tinsel wires loaded on or in a woven cloth. A terminal ring made of insulating material is mounted on the damper with the conductive member at its adhesive margin formed on the outer circumference portion. Input terminal lugs are mounted on the terminal ring. A voice coil is mounted on the damper with the conductive member and terminal ring. Input copper foil electrodes formed on the outer circumference of a coil bobbin of the voice coil is electrically connected to the end portions of the flat knitted tinsel wires extending to the inner hole of the damper with the conductive member. The terminal lugs are electrically connected to the ends of the flat knitted tinsel wires extending to the outer circumference of the damper with the conductive member. The coupling area between the damper with the conductive member and the voice coil or coil bobbin is adhered by adhesive or the like to form an integrated ring assembly. The ring assembly is supplied to a speaker manufacturing line to assemble a speaker.
摘要:
Abnormal sounds such as kinky sounds are prevented from being generated from a vehicle mount speaker when it is mounted on a door panel or the like. The vehicle mount speaker is mounted on a vehicle interior decorative panel or the like, the speaker is provided with projection-shaped support shafts on the back of the speaker near at the speaker flange, and the support shafts are coupled directly or via a cushioning member to the vehicle iron plate or the like.