Abstract:
A residual charge removing circuit connected to a node in a power-on reset pulse generating circuit for removing positive charges which remain in this node when a power supply is turned off is disclosed. This residual charge removing circuit is formed of two N-channel MOS transistors connected in series between the node and the ground, and one capacitor. Out of the two N-channel MOS transistors, the transistor near the node has a grounded gate. The capacitor is connected between a gate of the transistor, out of the two N-channel MOS transistors, which is distant from the node, and a power supply. The gate of the transistor distant from the node is connected to a connection point between the two N-channel MOS transistors. Therefore, when a supply potential lowers below a threshold voltage Vth of the MOS transistors due to the power-off, the transistor distant from the node is turned off, so that a potential of the connection point becomes -Vth owing to a discharge of negative charges from the capacitor. This turns on the transistor near the node, so that the residual charges in the node are offset by the negative charges in the connection point.
Abstract:
A semiconductor memory device comprises eight memory arrays (b 10a, 10b) arranged in one column. A peripheral circuit (60) is arranged in the central portion of the eight memory arrays (10a, 10b), two column decoders (51, 52) being arranged with the peripheral circuit (60) interposed therebetween. Each of the eight memory arrays (10a, 10b) is provided with a row decoder (20). A plurality of first column selecting lines (CL1) are provided so as to cross the three memory arrays (10a, 10b) arranged on one side of the peripheral circuit (60) from the column decoder (51). In addition, a plurality of second column selecting lines (CL2) are provided so as to intersect with the three memory arrays (10a, 10b) arranged on the other side of the peripheral circuit (60) from the column decoder (52).
Abstract:
A circuit for generating a boosted signal for a word line, coupled to a word line driving signal line for transmitting a voltage signal to the word line, coupled to a first power supply, and coupled to a second power supply for providing a voltage higher than the voltage of the first power supply, can supply a compensating voltage for the word line from the second power supply through the word line driving signal line when a voltage of the word line is decreased.
Abstract:
According to the present invention, there is provided an indium recovery method for recovering indium from an indium-containing product, including a leaching step of allowing indium to leach into an aqueous hydrochloric acid solution by hydrothermal leaching using the aqueous hydrochloric acid solution as a leaching agent from the indium-containing product to obtain a leachate composed of an aqueous hydrochloric acid solution containing indium, and a separating step of adding a microbe for adsorbing In ions to the leachate to separate indium from the leachate.
Abstract:
According to the present invention, there is provided an indium recovery method for recovering indium from an indium-containing product, including a leaching step of allowing indium to leach into an aqueous hydrochloric acid solution by hydrothermal leaching using the aqueous hydrochloric acid solution as a leaching agent from the indium-containing product to obtain a leachate composed of an aqueous hydrochloric acid solution containing indium, and a separating step of adding a microbe for adsorbing In ions to the leachate to separate indium from the leachate.
Abstract:
A vehicle navigation device including a destination setting means that sets a destination; a route searching means that searches for a route to the destination that has been set by the destination setting means; and a search condition setting means that sets a specified search condition from a plurality of conditions that include a type of facility serving as a search object and an area serving as a search object, in which the route searching means, in the case of an input operation of a specified search condition being performed by the user, searches for a waypoint and a route thereof based on the search condition.
Abstract:
A communication apparatus according to the invention can be applied to constitute each of relay nodes provided to constitute a novel communication network which avoids electric wave collision arising on a communication channel without carrying out “carrier sense” or operations for transmitting and receiving control information, such as “RTS”, “CTS”, and so no. The communication apparatus comprises a temporary managing portion 16 for controlling temporary memory means 15, a main managing portion 18 for controlling main memory means 17 and an operation control portion 20. The operation control portion 20 is operative to cause the temporary managing portion 16 and the main managing portion 18 to utilize the state information or the history and state information for obtaining probability of deletion or transmission and probability of delay with regard to each data frame of framed data for discharge and to control, on the basis of the obtained probability of deletion or transmission and the obtained probability of delay, deletion or transmission of the data frame of the framed data for discharge and delay for transmission of the data frame of the framed data for discharge on the occasion of the transmission thereof.
Abstract:
An operating device for controlling a display screen, which includes a rotatable operating member of cylindrical shape, and a slidable operating member having a cylindrical tip portion located above an upper end of the rotatable operating member. The diameter of an upper surface of the slidable operating member cylindrical tip portion is reduced relative to a diameter of a lower surface of the cylindrical tip portion, and the diameter of the lower surface of the slidable operating member cylindrical tip portion is equal to or less than a diameter of an upper surface of the rotatable operating member. An operating device is provided which prevents a misoperation in slide operation and rotation operation and improves operability.
Abstract:
Disclosed is a DRAM including a test mode operation capable of testing whether a plurality of memory cells are defective or not in a short time. The DRAM includes a power-on detection signal generator, a power-on reset signal generator, and a test mode instruction signal generator. The power-on detection signal generator detects application of a power supply voltage and generates a power-on detection signal. The power-on reset signal generator is reset by a power-on reset signal, counts at least once an external RAS signal applied after reset and generates a power-on reset signal. The test mode instruction signal generator detects logic states of an internal RAS signal, an internal CAS signal and an internal W signal applied after the power-on reset and generates a test mode instructing signal.
Abstract:
An external clock enable signal is taken in accordance with a first internal clock signal from clock buffer circuit from which an input buffer enable signal is generated to be input to input buffer circuit. Current path in the input buffer circuit is shut off in accordance with the input buffer enable signal. Since the state of the input buffer enable signal is changed in synchronization with the rise of the internal clock signal, the set up time of the external signal can be sufficiently ensured while current consumption of input buffer circuit can be reduced.