摘要:
A gain controller for use in mobile telephone system is disclosed. It is judged whether digital input data includes speech data or not. When the digital input data includes speech data, an integration energy value of the digital speech data for a predetermined time length is measured. The measured integration energy value is compared with a higher threshold value and a lower threshold value. A step level is set to a predetermined minus value, a predetermined plus value and "0" when the integration energy value is higher than the higher threshold value, lower than the lower threshold value and within a range between the higher and lower threshold values, respectively. The obtained step level is then added to the digital speech data.
摘要:
A controller of a card radio modem connectable to a data terminal measures two kinds of a battery voltage under a different load condition of the card radio modem. The controller determines the kind of battery and detects the remaining time of accuracy, based on the kind of the battery. In addition, the controller calculates an available capacity of a file data to be transmitted and received during the remaining time. When the available capacity is smaller than a capacity which is necessary to transmit and receive, the controller generates an alarm to inform an operator. The controller displays the available capacity or remaining time on a display.
摘要:
The invention provides a cassette which is sufficiently sturdy even though its side boards are of narrow width, is protected against static charging in the insertion and removal of substrates and, hence, against circuit failure, and is not liable to form a dust of friction. The invention further provides an improved substrate-supporting side board for use in the fabrication of a cassette.The above substrate-supporting side board comprises a metal core, an overlay and a plurality of shelf members, at least the frontal part of the overlay and the shelf members being made of resin, the shelf members being tongue-shaped projections arising from the overlay and extending in parallel and inwardly of the cassette frame at a predetermined pitch with an upward inclination toward free ends thereof, the supporting surface of each shelf member being slightly elevated in the center with respect to its flanks, and at least part of the portion of the resin which is to contact a substrate being molded from a dust-inhibited resin molding material, with the remainder being molded from an electrically conductive resin molding material.
摘要:
The present invention provides a camera enabling effective use of parts retrieved from a used lens-mounted film. Members retrieved from a lens-mounted film and responsible for film feed and release operation; such as, a sprocket, a sprocket axis with a charge cam attached, a drive lever, and a locking lever are mounted in a camera as they are. A release mechanism is included to release a frame stop state set for frame-by-frame film feed and a state in which the turn of a film wind knob is disabled, whereby film rewind is enabled. A strobe circuit board containing a strobe flashing unit and a control circuit is recycled for a camera permitting film rewind. In this case, a flashing capacitor mounted on the retrieved strobe circuit board is angled at lead wires so that the flashing capacitor can be placed in any state different from the one in a lens-mounted film. Moreover, electric connections for the retrieved strobe circuit board are made readily by adding coupling means having contacts and connecting the strobe circuit board to a battery via the coupling means.
摘要:
A disk recording device records blocks of data such as musical information on a recordable disk where absolute addresses have been previously recorded. Address data indicating the starting and ending address of each block is recorded in a lead-in section, and recordable areas of the program area, such as unrecorded parts or unnecessarily recorded parts, are detected on the basis of the address data of each block. The respective lengths of the recordable areas are indicated. Hence the user can easily identify unrecorded or unnecessarily recorded areas that are long enough for further recording.
摘要:
A method for producing a clad steel pipe having resistance to corrosion and wear at the inner and/or the outer faces includes plural base pipes which are mechanically fixed and metallurgically joined by diffusion welding before the plural base pipes are elongated to produce an elongated clad steel pipe.
摘要:
A sysnthetic lubricating oil comprising at least one monosubstituted naphthalene derivative such as .beta.-t.-amylinaphthalene, .beta.-(1,1-dimethyldecyl) naphthalene or .beta.-(.alpha.,.alpha.-dimethylbenzyl) naphthalene.
摘要:
A gas sensor includes a pair of electrodes printed on an electrically insulating substrate, a sensitive layer deposited on tip portions of the electrodes and a part of the substrate adjacent to the tip portions and bridging the space between the electrodes at the tip portion, and a protective film deposited on the electrodes and a part of the substrate adjacent to the tip portion so that a part of each electrode covered with the sensitive layer is free of the protective film. The sensitive layer is formed by depositing titanium oxide by plasma spraying on the substrate, and then heat-treating the deposited titanium oxide, so as to provide a diffusion reactive layer between the sensitive layer and the substrate and to form fine grooves on the surface of the sensitive layer.
摘要:
In construction of a fluid jet loom equipped with a free weft exchanger and a weft feeler, a weft detection circuit connected to the weft feeler is provisionally disenabled over a predetermined number of picks after every weft exchange and allows continued weft insertion even in case of faulty weft insertion in order to keep high running efficiency of the loom as long as the extent of weaving defect is within a tolerable extent.
摘要:
A joint structure of a metallic tubular member and metallic annular parts, the annular parts being joined to the outer periphery of the tubular member as in a camshaft. Each of the annular parts has around its inner periphery at least one serrated portion which cuts into the outer periphery of the tubular member when they are joined, the annular part also having a planar portion facing another portion of the tubular member in such a manner that substantially no pressure is exerted on the planar portion of the annular part.A method of making such structure involves positioning of the tubular member is required in relation to the annular parts, as by use of a split die, and then forcing into the tubular member a pressing member to expand the tubular member so that the serrated portions cut into the outer periphery of the tubular member.