Patent application number | Description | Published |
20080211593 | Oscillation circuit - Provided is an oscillation circuit capable of obtaining a plurality of oscillation frequencies using a single oscillation resonator. The oscillation circuit includes the oscillation resonator, an oscillation inverter, a dumping resister connected between an output of the oscillation inverter and an output terminal, a feedback resistor connected with input and output of the oscillation inverter, and a feedback resistor switch for varying a feedback resistance value or an oscillation inverter switch for varying a mutual conductance value of the oscillation inverter. When the feedback resistance value or the mutual conductance value of the oscillation inverter is varied by the feedback resistor switch or the oscillation inverter switch, a frequency band of the oscillation circuit is adjusted to select a harmonic component of the oscillation resonator. Therefore, an oscillation frequency can be switched, so it is possible to obtain a plurality of oscillation frequencies using a single oscillation resonator. | 09-04-2008 |
20090160506 | POWER-ON CLEAR CIRCUIT - Provided is a power-on clear circuit which normally operates. Even when a rising speed of a power supply voltage is slow, or when the power supply voltage rises from a voltage other than a ground voltage, a voltage of a node (C) is unlikely to become unstable owing to provision of a pull-down element ( | 06-25-2009 |
20100188124 | POWER-ON RESET CIRCUIT - Provided is a power-on reset circuit suitable for a semiconductor device that operates at a low supply voltage. When a supply voltage (VDD) becomes higher than a first output circuit reversal threshold voltage (Vz) after a reset signal is output, a first control circuit ( | 07-29-2010 |
20100208531 | DATA READING CIRCUIT - There is provided a data reading circuit which is low in current consumption. In a read period, a signal (φ | 08-19-2010 |
20110032776 | MEMORY CIRCUIT AND VOLTAGE DETECTION CIRCUIT INCLUDING THE SAME - Provided are a memory circuit having a small circuit scale and a voltage detection circuit including the memory circuit. An NMOS transistor ( | 02-10-2011 |
20130148444 | DATA READING DEVICE - There is disclosed a data reading device in which data of a nonvolatile storage element is reflected in a circuit to be regulated, with a minimum necessary delay width after turning a power on or after reset cancellation, and wrong writing due to a static electricity is prevented. A delay circuit is additionally disposed to output a delayed data reading signal after a signal of turning the power on or a signal of the reset cancellation is generated. A delay time T | 06-13-2013 |
20130249473 | SEMICONDUCTOR DEVICE INCLUDING CHARGING SYSTEM - The semiconductor device includes the charging system including: electric power generating unit for supplying electric power; electric power storing unit for storing electric power generated by the electric power generating unit; switch unit provided in a charging path for charging the electric power storing unit with the electric power generated by the electric power generating unit; a comparator driven by the electric power generated by the electric power generating unit for comparing a reference voltage and a stored voltage of the electric power storing unit; and a level converter provided between the comparator and the switch unit for, based on a result of a comparison made by the comparator, converting a level of a generated voltage to a level of the stored voltage and outputting a resultant to the switch unit. | 09-26-2013 |
20130250741 | ANALOG ELECTRONIC WATCH - The analog electronic watch includes: a crystal oscillator; an oscillator circuit; a frequency divider circuit; an output control circuit; a constant voltage circuit; and a cell. The constant voltage circuit and the output control circuit are powered from the cell. The oscillator circuit and the frequency divider circuit are powered from the constant voltage circuit. The constant voltage circuit is capable of outputting a first constant voltage and a second constant voltage in a switchable manner. The second constant voltage is a voltage which is equal to or lower than a cell voltage. The first constant voltage is a voltage which is smaller than the second constant voltage. The constant voltage is switched to the second constant voltage in a period of outputting the motor drive pulse. | 09-26-2013 |
20140085996 | READOUT CIRCUIT AND SEMICONDUCTOR DEVICE - Provided is a readout circuit capable of detecting inversion of retained data caused by a noise, such as static electricity. The readout circuit is configured to retain opposing data in a first latch circuit and a second latch circuit in a readout period so as to be capable of detecting an anomaly of the retained data by making use of the fact that the data in the first latch circuit and the second latch circuit are inverted in the same direction due to a noise, such as static electricity. | 03-27-2014 |
20140204720 | CONSTANT VOLTAGE CIRCUIT AND ANALOG ELECTRONIC CLOCK - There are provided a constant voltage circuit that features low current consumption and stable operation, and an analog electronic clock provided with the constant voltage circuit. The constant voltage circuit includes a differential amplifier circuit which is turned on/off by a predetermined signal and which controls the voltage of a gate of an output transistor on the basis of a reference voltage and a feedback voltage that are received, a switch circuit which is connected to an output terminal of the differential amplifier circuit and which is turned on/off by a predetermined signal, and a voltage holding circuit which is connected between the gate of the output transistor and a power supply terminal and which has a resistor and a capacitor connected in series. An analog electronic clock provided with the foregoing constant voltage circuit that supplies a voltage to at least an oscillation circuit and a frequency division circuit. | 07-24-2014 |
20140217950 | CONSTANT VOLTAGE CIRCUIT AND ANALOG ELECTRONIC CLOCK - There are provided a constant voltage circuit that outputs a stable constant voltage for an analog electronic clock, and an analog electronic clock featuring low current consumption and prolonged battery life. The constant voltage circuit has a first voltage holding circuit connected between the gate of an output transistor and an output terminal and a second voltage holding circuit connected between the gate of the output transistor and a ground terminal, and carries out control such that the second voltage holding circuit is enabled when the motor is operated. | 08-07-2014 |
20140219037 | NON-VOLATILE SEMICONDUCTOR MEMORY DEVICE AND SEMICONDUCTOR DEVICE - Provided is a semiconductor non-volatile memory device capable of improving the accuracy of trimming by creating a written state before data is written into a non-volatile memory element. The semiconductor non-volatile memory device includes: a written data transmission circuit for transmitting written data to a non-volatile memory element; a first switch connected between the non-volatile memory element and a data output terminal; a third switch connected to an output terminal of the written data transmission circuit; and a control circuit for controlling the respective switches. When a test mode signal is input, the control circuit turns on only the first switch and the third switch so as to control the written data to be output to the data output terminal before data is written into the non-volatile memory element. | 08-07-2014 |
20140240054 | OSCILLATION STOP DETECTION CIRCUIT AND ELECTRONIC DEVICE - Provided is an oscillation stop detection circuit having low current consumption, which is capable of detecting stop of oscillation regardless of whether an input signal stops at High or Low and thereby accurately measuring an oscillation stop detection period. The oscillation stop detection circuit includes: a pulse generation circuit for outputting a one-shot pulse in synchronization with an oscillation signal input from an input terminal; a capacitor including one terminal connected to a first power supply terminal and another terminal connected to an output terminal; a constant current circuit connected between the first power supply terminal and the another terminal of the capacitor; and a switch circuit connected between an output terminal of the pulse generation circuit and the another terminal of the capacitor, for connecting the another terminal of the capacitor to a second power supply terminal based on the one-shot pulse. | 08-28-2014 |
Patent application number | Description | Published |
20080206528 | INK COMPOSITION, INKJETRECORDING METHOD, PRINTED MATERIAL, METHOD FOR PRODUCING PLANOGRAPHIC PRINTING PLATE, AND PLANOGRAPHIC PRINTING PLATE - There are provided an ink composition including at least an initiator, a polymerizable monomer and a polymer comprising a fluorine containing group and a polymerizable group; an inkjet recording method using the ink composition; a printed material recorded by the inkjet recording method; a method of producing a planographic printing plate using the ink composition; and a planographic printing plate obtained by the method of producing a planographic printing plate. | 08-28-2008 |
20080213550 | INK COMPOSITION, INKJET RECORDING METHOD, PRINTED MATERIAL, METHOD FOR PRODUCING PLANOGRAPHIC PRINTING PLATE, AND PLANOGRAPHIC PRINTING PLATE - There are provided an ink composition including a polymerization initiator, a polymerizable monomer and a phosphoric acid group-containing polymer having a weight-average molecular weight in a range of 10,000 to 30,000; an inkjet recording method using the ink composition; a printed material recorded by the inkjet recording method; a method of producing a planographic printing plate using the ink composition; and a planographic printing plate obtained by the method of producing a planographic printing plate. | 09-04-2008 |
20090087627 | WHITE INK COMPOSITION, INKJET RECORDING METHOD, AND PRINTED MATERIAL - A white ink composition for inkjet recording is provided that includes an acylphosphine-based photopolymerization initiator, a monomer having a heterocyclic skeleton, and a white colorant, the acylphosphine-based photopolymerization initiator having a content of 10 to 18 wt % relative to the ink composition. There are also provided an inkjet recording method that includes a step of discharging the white ink composition for inkjet recording onto a recording medium and a step of curing the white ink composition by irradiating the discharged white ink composition with actinic radiation, and a printed material formed by the inkjet recording method. | 04-02-2009 |
Patent application number | Description | Published |
20110139105 | Variable Valve Timing Control Apparatus Cover and Method for Producing the Cover - A variable valve timing control apparatus (VTC) cover is a cover that covers both intake side and exhaust side VTCs respectively controlling valve timing of an intake valve and an exhaust valve by supplying/drawing of oil. The intake side and exhaust side VTCs are arranged parallel to each other and close to each other and installed to an internal combustion engine. The VTC cover has a first cover unit having a first supplying/drawing rod inserted into a rod connecting hole of one of the intake side and exhaust side VTCs to supplies/draws the oil and a second cover unit having a second supplying/drawing rod inserted into a rod connecting hole of the other of the intake side and exhaust side VTCs to supplies/draws the oil. The VTC cover is formed by fixing the second cover unit to the first cover unit. | 06-16-2011 |
20120017857 | VALVE TIMING CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - A valve timing control device comprises a drive rotation member driven by a crankshaft of an internal combustion engine; a driven rotation member fixed to a camshaft that actuates engine valves to open and close, the drive rotation member and driven rotation member being coaxially arranged to make a relative rotation therebetween; a phase varying mechanism that rotates the driven rotation member relative to the drive rotation member within a given angle, the phase varying mechanism being able to cause the driven rotation member to take the most-retarded phase position, the most-advanced phase position and a middle phase position defined between the most-retarded phase position and the most-advanced phase position; and a position keeping mechanism that is able to keep the driven rotation member at least the most-retarded phase position and the middle phase position at the time of starting the engine, and is able to select one of the most-retarded phase position and the middle phase position in accordance with an operation condition of the engine. | 01-26-2012 |
20140283643 | VALVE TIMING CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND LOCK RELEASE MECHANISM OF VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control system includes: a check valve which is provided between an oil pump driven by the engine, and the lock release passage; an electromagnetic valve which is disposed between the check valve and the lock release passage; an accumulator disposed between the check valve and the electromagnetic valve; and a passage which is disposed between the check valve and the electromagnetic valve, in which the flow of the oil is stored, and which is arranged to release the restriction of the lock mechanism by a pressure of the accumulator by energizing the valve driving solenoid of the electromagnetic valve. | 09-25-2014 |
20140283770 | VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control apparatus includes: a first lock mechanism being arranged to lock the vane rotor to a first position between the most retard angle position and the most advance angle position with respect to the housing, and to release the lock; and a second lock mechanism being arranged to lock the vane rotor with respect to the housing, to a second position which is between the most retard angle position and the most advance angle position, and is on the retard angle side of the first position, and to release the lock. | 09-25-2014 |
Patent application number | Description | Published |
20130077203 | OVERCHARGE PREVENTION CIRCUIT AND SEMICONDUCTOR DEVICE - Provided is an overcharge prevention circuit for clamping a voltage value of an electric power generation unit in an overcharged state to a constant value, in which the number of elements is small and which does not consume electric power unnecessarily. The overcharge prevention circuit includes: a backflow prevention diode; a clamping transistor having a gate connected to a cathode of the backflow prevention diode, a source connected to an anode thereof, and a drain connected to an overcharge prevention switch. Upon detection of overcharge, a current is discharged via the clamping transistor and the overcharge prevention switch, thereby clamping a potential of the electric power generation unit to around a voltage of an electricity storage unit. | 03-28-2013 |
20130082791 | OSCILLATION DEVICE - There are disclosed a constant voltage circuit which can realize a low consumption current, and a crystal oscillation circuit using the constant voltage circuit. When the constant voltage circuit is provided with a temperature characteristic regulation element, it is possible to minimize a difference between a negative tilt of a constant voltage to a temperature change and a negative tilt of the smallest operation voltage that can oscillate in the crystal oscillation circuit to the temperature change, so that the consumption current of the crystal oscillation circuit can be decreased. Furthermore, when a constant current generated by the constant voltage circuit is decreased, the consumption current of the constant voltage circuit can be decreased, and the consumption current of the whole oscillation device can be decreased. | 04-04-2013 |