Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8149019 | Chopper type comparator and A/D converter A chopper type comparator including a first power supply line to which a first power source is supplied, a second power supply line to which a second power source having lower voltage than the first power source is supplied, a reference voltage input part to which a... | 04/03/2012 |
| 8120388 | Comparator, sample-and-hold circuit, differential amplifier, two-stage amplifier, and analog-to-digital converter A comparator includes a sampling capacitor, a first switching unit which is connected to an input end of the sampling capacitor and which applies an input signal to the input end of the sampling capacitor, a second switching unit which is connected to the input end ... | 02/21/2012 |
| 8076959 | Circuits and methods for voltage detection A circuit for detecting an input voltage includes a voltage-to-current converter and a current comparator. The voltage-to-current converter is operable for generating a monitoring current that varies in accordance with the input voltage. The current comparator coupl... | 12/13/2011 |
| 8063668 | Output stage, amplifier control loop and use of the output stage An output stage includes a first transistor pair with a first conductivity type and a second transistor pair with a second conductivity type. The source connections of the first and second transistors in the first transistor pair and of the first and second transist... | 11/22/2011 |
| 7948273 | Soft-start device A soft-start device including a current source, a first transistor, and a second transistor is described. The first transistor is coupled to the current source, and an amount of current conducted by the first transistor is determined according to a voltage. The seco... | 05/24/2011 |
| 7948272 | Input buffer for detecting an input signal An input buffer which detects an input signal. The input buffer including an output node, a first buffer, and a second buffer. The first buffer may control the voltage level of the output node when the voltage level of a reference voltage signal is equal to a predet... | 05/24/2011 |
| 7911237 | High speed comparator A comparator comprises a differential amplifier (T1, T2, T8, T9) having differential inputs (IN1, IN2) forming the comparator inputs, and a first and a second amplifier output (f1, f2) forming the comparator ou... | 03/22/2011 |
| 7898301 | Zero input current-drain comparator with high accuracy trip point above supply voltage A comparator circuit (300) has a first field effect transistor (FET) (307) with a supply voltage (301) connection and a diode connected FET (303) connected in series to form the first circuit leg of the comparator (300). A second d... | 03/01/2011 |
| 7863942 | Voltage detecting circuit A voltage detecting circuit for comparing a voltage to be detected with a reference voltage and outputting an output signal having a level depending on the comparison is disclosed. The voltage detecting circuit includes an inverting amplifier circuit configured to r... | 01/04/2011 |
| 7830182 | Comparator A comparator has P-channel field effect transistors that are supplied at respective gates with input voltages Vin and Vref, which are objects of comparison, and that act as a differential transistor pair; and N-channel field effect transistors that serve as current ... | 11/09/2010 |
| 7804334 | High signal level compliant input/output circuits A level detector has an input circuit adapted to accept signals of multiple signal levels for detecting a specific level. The signal levels include a first signal level and a larger second signal level. Electronic components of the input circuit have reliability lev... | 09/28/2010 |
| 7795929 | Voltage detection circuit and oscillator using the same Provided is a voltage detection circuit that outputs a detection result when a voltage to be measured exceeds a predetermined voltage or falls below the predetermined voltage at a speed higher than that of a conventional case. The voltage detection circuit according... | 09/14/2010 |
| 7786765 | Low voltage shutdown circuit A low voltage shutdown circuit comprises an input node for receiving a voltage Vin to be monitored, first and second voltage-to-current (V to I) converters arranged to receive Vin at respective inputs and to convert Vin to currents I... | 08/31/2010 |
| 7759983 | Device for comparing the peak value of at least one voltage signal with a reference voltage A device for comparing the peak value of a periodic voltage signal or a linear combination of periodic voltage signals with a reference voltage includes a reference transconductor element for converting the reference voltage into a reference current, respective tran... | 07/20/2010 |
| 7759984 | Comparing circuit and infrared receiver A comparing circuit of the present invention includes: a charging and discharging circuit to charge a capacitor with charging current and discharge the capacitor with discharging current alternately in response to a switch of an input pulse signal; a comparator circ... | 07/20/2010 |
| 7755398 | Time constant calibration device and related method thereof A time constant calibration device includes: a first voltage generating circuit utilizing a first current passing through a capacitive component to generate a first voltage; a second voltage generating circuit utilizing a second current passing through a resistive c... | 07/13/2010 |
| 7733132 | Bulk bias voltage level detector in semiconductor memory device There is provided a bulk bias voltage VBB level detector in a semiconductor memory device capable of improving tWR fail generated at a low temperature by compensating a temperature variance. The VBB level detector includes A bulk bias voltage level detector in a sem... | 06/08/2010 |
| 7692455 | Semiconductor devices for receiving a current mode signal and methods of operating the same Embodiments of methods and apparatus for receiving data are disclosed. More particularly, methods of receiving a current mode signal, which can improve a signal to noise ratio (SNR) according to a change in a power supply voltage, and current mode comparators and se... | 04/06/2010 |
| 7605616 | Voltage detector circuit A voltage detection circuit for accurately detecting a voltage that is unaffected by fluctuation due to variations in transistor characteristics and threshold voltage. The voltage detection circuit includes a reference current generating section and a detecting sect... | 10/20/2009 |
| 7589568 | Variable power and response time brown-out-reset circuit A brown-out-reset circuit having programmable power and response time characteristics. These characteristics may be programmed over an n-bit wide bus for 2n different characteristics ranging from very low power consumption and slower response time to very... | 09/15/2009 |
| 7583108 | Current comparator using wide swing current mirrors A current comparator includes an input node for receiving an input current, an output node, a first wide swing current mirror having an input coupled to the input node of the current comparator, a power node for receiving a first power supply voltage such as ground,... | 09/01/2009 |
| 7570083 | High-speed receiver assembly A high-speed receiver suitable for applications that desire a common-mode voltage range from approximately 0.7V to approximately 0.9V is arranged by coupling first and second differential pair circuit architectures based on first and second current-steering schemes ... | 08/04/2009 |
| 7570084 | Semiconductor integrated circuit outputting detection signal based on detection result of a detecting device and electronic device including the same A semiconductor integrated circuit includes a first external terminal for receiving a voltage converted by a resistance portion from a current varying in response to an extrinsic factor, a second external terminal for externally outputting the voltage received at th... | 08/04/2009 |
| 7545182 | Cascode-type current mode comparator and receiver, and semiconductor device having the same A current mode comparator for a semiconductor device is disclosed. The current mode comparator may include a logic circuit coupled to a voltage sensing node, a first cascode coupled to the voltage sensing node and a first power node, and a second cascode coupled to ... | 06/09/2009 |
| 7518413 | Current detection circuit An upper end voltage and a lower end voltage of a current detection resistor Rs are supplied, via first and second switches S1 and S2, to one end of a main capacitor Ci. A reference voltage VREF is supplied, via a third switch S3, to the other e... | 04/14/2009 |
| 7479809 | Low power three-level detector A three-level detector circuit may comprise an input node and a pair of diode-connected transistors having respective drain terminals coupled to the input node. The pair of diode-connected transistors may be configured to set a voltage if the input voltage at the in... | 01/20/2009 |
| 7471119 | Electronic circuit device An electronic circuit device has a current correction circuit that supplies a correction current which is capable of offsetting an increment or a decrement of a consumption current of a signal processor circuit that varies based on a signal level of an input signal.... | 12/30/2008 |
| 7459941 | Voltage detecting device A device for detecting an interface voltage of a Universal Serial Bus (USB) interface. The device includes first and second voltage level indicators, and first and second control circuits. The first control circuit receives the interface voltage to generate a first ... | 12/02/2008 |
| 7439780 | Chopper type comparator A comparator includes: a CMOS inverter constituted by a combination of a first p-channel MOS transistor and a first n-channel MOS transistor; a second p-channel MOS transistor connected in parallel to the first p-channel MOS transistor in an analog input period, and... | 10/21/2008 |
| 7420340 | Motor speed control circuit A motor speed control circuit which controls a rotational speed of a motor by controlling an amount of current flowing through a drive coil of the motor. The control circuit comprises a reference voltage circuit that generates a reference voltage corresponding to a ... | 09/02/2008 |
| 7417471 | Voltage comparator having hysteresis characteristics A voltage comparator having hysteresis includes a comparing section that compares an input voltage with a reference voltage so as to output a high-level or low-level signal; and a reference voltage changing section that changes the reference voltage when a low-level... | 08/26/2008 |
| 7414439 | Receiver for a switched signal on a communication line A receiver for receiving a switched signal on a communication line (1), such as a LIN bus, the signal varying between first and second voltage levels (sup, ground). The receiver comprises a comparator (31, 54) responsive to the relative values of the r... | 08/19/2008 |
| 7403051 | Determining voltage level validity for a power-on reset condition Determining voltage level validity for a power-on reset condition is described. A supply voltage is applied to an integrated circuit. An oscillating signal is generated responsive to the supply voltage applied. A counting occurs responsive to oscillations of the osc... | 07/22/2008 |
| 7394295 | Sense amplifier The invention relates to a sense amplifier comprising the following element: a first current mirror unit coupled to a high voltage source, outputting a first current and a second current according to a first reference current, wherein the second current is twice the... | 07/01/2008 |
| 7372291 | Circuits having precision voltage clamping levels and method A slew rate control circuit includes a receiver for receiving input signals and an output generator for generating output signals based on the input signals. The slew rate control circuit also includes an electrical interconnection coupling an output of the receiver... | 05/13/2008 |
| 7372382 | Voltage regulation using digital voltage control For one disclosed embodiment, error is sensed in a voltage at an output node. One or more analog signals are generated based on the sensed error. One or more generated analog signals are converted into one or more digital signals. The voltage at the output node is c... | 05/13/2008 |
| 7366489 | Mobile communication apparatus A transceiver suitable for larger scale of integration employs direct conversion reception for reducing the number of filters. Also, the number of VCOs is reduced by utilizing dividers to supply a receiver and a transmitter with locally oscillated signals at an RF b... | 04/29/2008 |
| 7366019 | Nonvolatile memory There is provided a non-volatile memory capable of being supplied with two varieties of externally supplied voltages, stabilizing the operation thereof, at a voltage in the vicinity of a threshold voltage for switching over between the externally supplied voltages, ... | 04/29/2008 |
| 7366041 | Input buffer for low voltage operation An input buffer having differential amplifiers for receiving input signals to generate an output signal. The input buffer operates with a relatively low supply voltage and a relatively wide range of input signal levels while improving the symmetry between rising and... | 04/29/2008 |
| 7365571 | Input buffer with wide input voltage range The input buffer is driven by a data input/output supply voltage. The input buffer generates an output signal from an input signal that swings between the data input/output supply voltage and a data input/output ground voltage. ... | 04/29/2008 |
