摘要:
A biological-body-attached data communication device has a communication unit communicating with an external device via a biological body as a medium, a data processing unit transmitting/receiving data with the external device via the communication unit, an attachment detection unit like a heartbeat sensor detecting whether or not the biological-body-attached data communication device is attached to the biological body, and a power source unit. When the attachment detection unit detects that the device is attached to the biological body, the power source unit supplies operational power to the communication unit and the data processing unit, and when the attachment detection unit detects that the device is not attached to the biological body, the power source units terminates or suppresses power supply to those units. Accordingly, power consumption is suppressed, and draining of the power source is prevented.
摘要:
In an automotive air conditioning system according to the present invention, a thin condenser 2 of a condensing unit portion 10 installed on a flat roof of a vehicle such as a bus is provided in such a manner as to be inclined downwardly from the front toward the rear of the vehicle, condenser fans 4 are provided directly above the condenser, and an air inlet 51 to the condenser is disposed in front of the condenser whereas air outlets 52 are disposed above the condenser.
摘要:
The present invention has the object of providing an overshoot/undershoot prevention device and overshoot/undershoot prevention method that are highly effective against both overshoot and undershoot. The overshoot/undershoot prevention device is provided with an overshoot shaping device that selects the portion of a waveform signal that equals or exceeds an overshoot determining potential when the potential of the waveform signal equals or exceeds the overshoot determining potential, outputs the selected portion as an overshoot waveform, attenuates the overshoot component of the waveform signal, and outputs the result as a shaped waveform in accordance with the time that the overshoot waveform continues. Also included is an undershoot shaping device that selects the portion of the waveform signal that equals or falls below an undershoot determining potential when the potential of the waveform signal equals or falls below the undershoot determining potential, outputs the sleeted portion as an undershoot waveform, attenuates the undershoot component of the waveform signal, and outputs the result as a shaped waveform in accordance with the time that the undershoot waveform continues.
摘要:
When PMOS transistors are successively turned off, the resistance between a PMOS transistor and a power supply VDD is changed, and the amplitude of a waveform at the junction between the last-mentioned PMOS transistor and an NMOS transistor is controlled based on the changed resistance. Thereafter, a waveform output unit outputs a waveform whose harmonic components are made smaller from the junction between the PMOS transistor and the NMOS transistor.
摘要:
Whenever necessary, an operation for diluting an absorbing solution after the stop of the operation is unlimitedly enabled without increasing the size of an absorption refrigerating machine. For the dilution operation after the operation of the absorption refrigerating machine, a pipe line of a dilute solution circulating pipe KD is opened by a dilution valve VD. Thereby, a solution pump P1 and an absorber A can be directly connected through a circulating pipe K6. The operation of the solution pump allows circulating a low-concentration solution and facilitates the dilution of a high-concentration solution to a low concentration. Since this case has nothing to do with a pressure difference in a path, the dilution operation can be performed whenever necessary. Moreover, since it is unnecessary to deal with a pressure loss, it is not necessary to increase the height of the apparatus. Thus, there are no increase in the space for installation and no rise in the cost of the apparatus due to the large-sized refrigerating machine. Moreover, since the solution pump used in the normal operation can be used for the dilution operation, an additional pump for the dilution operation only is not needed. The dilution operation can be therefore performed at low cost.
摘要:
There is provided a bus receiver including a first differential amplifier comparing an input signal to a first reference voltage, and transmitting a first pulse signal accordingly, a second differential amplifier comparing the input signal to a second reference voltage, and transmitting a second pulse signal accordingly, an exclusive OR circuit transmitting an exclusive OR pulse signal indicative of exclusive OR of the first and second pulse signals, a first flip-flop circuit receiving the exclusive OR pulse signal as clock, and receiving the second pulse signal as data, and a selector selecting one of the first and second pulse signals in accordance with an output of the first flip-flop circuit. The bus receiver readily eliminates noises. The bus receiver may further include a second flip-flop circuit receiving external clock as clock, and receiving an output of the selector as data. The provision of the second flip-flop circuit ensures that the bus receiver can be readily synchronized with other circuits electrically connected to the bus receiver and designed to operate under the same external clocks as those for the bus receiver.
摘要:
An outdoor power generating apparatus includes a housing placed at an outside and including a power generation chamber, a power generation source accommodated in the power generation chamber and formed by either one of an engine and a fuel cell, an intake portion provided within the housing and positioned at an upper side of the power generation source, the intake portion including an outside air inlet portion that opens to a side wall of the housing to bring an outside air, the intake portion including a meander passage that connects the outside air inlet portion to the power generation chamber while bringing the outside air to meander from the outside air inlet portion towards the power generation chamber, and a drain port provided at the meander passage and discharging a water in a liquid state that remains at the meander passage to an outside of the meander passage.
摘要:
A first and a second charging circuit each having a diode and a capacitor are connected to a buffer. In the first charging circuit, an overshoot based on a reflected signal generated by an output signal is stored as an electric charge to the capacitor, and in the second charging circuit, an undershoot based on a reflected signal generated by an input signal is charged as an electric charge to the capacitor, whereby the energy of the overshoot and the like is recovered. These charges are collected in the charging circuit, stored in the capacitor, converted into a power supply voltage of an internal power supply by a stabilization circuit, and are supplied as an internal power supply. The reflected energy of the signal generated during signal transmission at the time of data transfer between semiconductor devices is stored, and the stored energy is used in driving the signals.
摘要:
In a battery exchange system for facilitating exchange at appropriate intervals of a chargeable battery with another fully charged chargeable battery for charging, a user device having characteristic identification information reads a serial number from a battery when the battery is installed and transmits to a control device correspondence information in which the identification information and the serial number have been placed in correspondence with each other. A charging device reads the serial number from a battery when charging of the battery has been completed and transmits the serial number to the control device. The control device calculates a scheduled charging time of the battery having the serial number that has been transmitted from the charging device based on the time of reception of the correspondence information that was transmitted from user device and, before the calculated scheduled charging time, carries out notification prompting battery exchange.
摘要:
A high-speed bus includes a bus line to be connected with a bus driver and a bus receiver. Pull-up resistors are connected to both ends of the bus line for feeding a given pull-up electric potential thereto. A series resistor is further connected between the bus line and each of the bus driver and the bus receiver. The bus driver includes a series resistor and a capacitive component which are connected in series between the bus line and the ground. The bus receiver includes a waveform shaping component connected to the bus line for shaping a waveform of an inputted signal, and a receiver circuit receiving as an input thereof an output of the waveform shaping component.