摘要:
A method of producing a metal mold is disclosed. A heat resistant sheet is forcedly brought into close contact with a product configuration surface of a matrix such as a wooden pattern, a resin model, or the like by making use of negative pressure. The matrix is brought into contact with a melt of a low melting-point alloy while that state of close contact is being maintained and the melt is allowed to cool as it is, thereby casting one part of the mold which makes up a pair. The matrix is then removed, and by using the one part of the mold thus cast as a new matrix, this new matrix is brought into contact with the melt of a low melting-point alloy via the heat resistant rubber sheet and is allowed to cool as it is, thereby casting a counterpart of the mold that makes up the pair.
摘要:
In some embodiments, a reset circuit for an electronic circuit equipped with a backup power capacitor includes a first detector arranged to detect a predetermined first voltage of the backup capacitor, a second detector arranged to detect a predetermined second voltage of the backup capacitor, the second voltage being lower than the first voltage, and a controller arranged to control an output of a reset request signal based on detection results of the first detector and the second detector. The controller is configured to output the reset request signal when the first detector detects the first voltage after the second detector detected the second detector.
摘要:
A battery comprising a storage section for storing battery management information transmitted/received to/from outside through a communicator; wherein, the battery management information is at least either available device information on a device which can use the battery or chargeable charger information on a charger which can charge the battery.
摘要:
Address data in an address counter is evaluated correctly. A microcomputer which outputs address data to an external device for evaluating the address data comprising an address counter specifying an address in a program memory, an address data output section which outputs, to the external device, discrimination data for discriminating whether or not the address data in the address counter is one which is branched in order for the external device to store only branched address data, the discrimination data being outputted together with the address data.
摘要:
A display apparatus and its cooling method in which the optical assemblies can be prevented from being smudged by dust entered into the apparatus so that an excellent image can be obtained and the apparatus can be cooled sufficiently with the apparatus including a housing having a screen on its front surface and a closed structure, an optical block having a closed structure and coupled with the housing in a closed fashion allowing air to circulate between the housing and the optical block. Further, the display apparatus includes a light source, a first cooling device for cooling the light source and a second cooling device for cooling the optical block. At least the optical block is arranged to have a closed structure and is cooled by air circulation.
摘要:
In a transporting vehicle provided with a trailer hauled by a tractor, the trailer is constructed by a first trailer unit connectable with the tractor and a second trailer unit detachably connectable with the first trailer unit. At mutually opposed connecting sections of the first and second trailer units is provided a connecting mechanism for integrally connecting the first and second trailer units with the rear end of the first trailer unit held in contact with the front end of the second trailer unit. The transporting vehicle can transport cargoes on roads other than main roads while being allowed to have a relatively simple construction and an improved loading capacity.
摘要:
A hit-less cell switching device capable of switching ATM (Asynchronous Transfer Mode) cells between a system ZERO and a system ONE is disclosed. The system ZERO includes a first cell switch, a first input cell gate, a first output cell gate, and a first shaper. Likewise, the system ONE includes a second cell switch, a second input cell gate, a second output cell gate, and a second shaper. First, a controller opens the first and second input cell gates and first output cell gate, closes the second output cell gate, and puts the first and second cell switches and first and second shapers in a fully switched condition, thereby initializing the switching device. Subsequently, the controller closes the second input cell gate, evacuates queue buffers included in the second cell switch and second shaper, and opens the second output gate. After putting the two cell switches and two shapers in an in-switching state, the controller closes the first input cell gate and opens the second input cell gate simultaneously. When the first cell switch and first shaper are evacuated and the arrival of cells ends, the controller causes the second cell switch and second shaper to read cells out of their queue buffers, respectively. On confirming the end of switching of the first cell switch and first shaper, the controller closes the first output cell gate and opens the first input cell gate, thereby completing switching from the system ZERO to the system ONE.
摘要:
An EEPROM (1) is set to write mode when a program command to commence rewriting of data in region B in the EEPROM (1) is read out from region A. A CPU (2) then writes data specified by a latch (6) at an address in region B specified by a latch (4). In compliance with an inhibit signal INH, the CPU (2) now disregards the effects of the undefined output from the EEPROM (1) terminal DOUT.
摘要:
A plurality of delay time data can easily be obtained. A data input unit 32 successively writes data into a memory 30. A data output unit 36 outputs data from six areas a-f in the memory 30 in the parallel manner. Selection units SW1 and SW2 successively select and output data read out from the six areas a-f in the memory 30. Locations to be read are shifted from one another by the selection units SW1 and SW2 to output data from different memory locations. Thus, a plurality of data which are different in time between write and readout operations (i.e., different delay times) can be obtained simultaneously.
摘要:
In some embodiments, an input/output (I/O) circuit sends and receives a high-level signal and a low-level signal via a coupling capacitance provided on a communication line. The I/O circuit includes a receiving portion including a first detection circuit arranged to detect one of the signals and a second detection circuit arranged to detect the other signal, a transmitting portion including a three-value output circuit configured to output one of signals consisting of a high-level signal, a low-level signal, and a high impedance signal, and a control circuit configured to control the receiving portion and the transmitting portion. The control circuit judges a level of an inputted signal depending on detection results of the first detection circuit and the second detection circuit in a receiving state and controls an output value of the three-value output circuit in a transmitting state.