Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8081015 | Differential amplifier with a feedback unit A differential amplifier includes an amplification unit and a feedback unit. The amplification unit amplifies a voltage difference between a first input signal and a second input signal and outputs a first output signal and a second output signal. The feedback unit ... | 12/20/2011 |
| 8030972 | High-speed latched comparator circuit with variable positive feedback A latched comparator circuit. The latched comparator circuit comprises a first and a second output terminal for outputting a first and a second output voltage, respectively, of the latched comparator circuit. Furthermore, the latched comparator circuit comprises a c... | 10/04/2011 |
| 7633318 | Data receiver of semiconductor integrated circuit and method for controlling the same A data receiver of a semiconductor integrated circuit includes an amplifier that outputs an amplified signal by detecting and amplifying received data using equalization function according to feedback data, a detecting unit that detects a period when data is not rec... | 12/15/2009 |
| 7605615 | Voltage comparator circuit There is provided a voltage comparator circuit with even lower power consumption. It comprises an FET Q1, to the gate of which a signal input terminal IN1 is connected, an FET Q2, to the gate of which a signal input terminal IN2 is connec... | 10/20/2009 |
| 7400279 | Circuits and methods with comparators allowing for offset reduction and decision operations Circuits and methods may be improved by using ADCs that compensate for the effect of comparator input offset on comparator decisions. Offset compensation may be implemented in an ADC by using an amplifier section between the input of the ADC and a comparator section... | 07/15/2008 |
| 7378881 | Variable gain amplifier circuit Embodiments of a variable gain amplifier circuit are described. In one embodiment, multiple resistor devices are coupled in series to form a string of resistor devices and to receive an input current. A multiple input operational amplifier device has an amplifier ou... | 05/27/2008 |
| 7368955 | Current-balanced logic circuit In accordance with some embodiments, a current-balanced logic circuit includes a first sense amplifier, a second sense amplifier, and a current-source transistor which provides bias current to the first and second sense amplifiers. The first and second sense amplifi... | 05/06/2008 |
| 7368991 | System and method for clamping a differential amplifier System and method for limiting an output signal of a differential amplifier. A preferred embodiment comprises a limit sense amplifier configured to detect when the output exceeds a permitted limit, a common mode bias current unit configured to increase a signal gain... | 05/06/2008 |
| 7366623 | Method and apparatus for characterizing a load on a data line A method for characterizing a load on a data line includes the steps of: (A) Applying at least three successive voltages to the data line. Each respective odd-numbered successive voltage of the at least three successive voltages has substantially a first voltage val... | 04/29/2008 |
| 7352215 | High speed latch comparators In a latch circuit having a bistable pair of cross connected transistors of a first polarity and a third transistor of a second polarity, a current signal greater than a bias current is received at a latch circuit port, amplified with the third transistor, and appli... | 04/01/2008 |
| 7332953 | Circuit and method for controlling the threshold voltage of transistors A control unit, for controlling a threshold voltage of a circuit unit having transistor devices, includes a reference circuit and a measuring unit. The measuring unit is configured to measure a threshold voltage of at least one sensing transistor of the circuit unit... | 02/19/2008 |
| 7315478 | Internal voltage generator for a semiconductor memory device Provided is an internal voltage generator for a semiconductor memory includes: a first internal voltage drive device for driving an internal voltage in response to a first reference voltage corresponding to a target level of an internal voltage; and a second interna... | 01/01/2008 |
| 7262638 | Current sense amplifier A current sense amplifier includes a pair of cross-coupled transistors, each transistor being connected between a respective input signal line and a respective output signal generating node, for amplifying voltage difference between the output signal generating node... | 08/28/2007 |
| 7239251 | Multi-bit digital input using a single pin Electronic devices, and methods, for transmitting, transferring and/or conveying a multi-bit digital signal as a voltage signal via a single pin. Devices and methods according to the invention substantially reduce the pin count of a device because inputting of a mul... | 07/03/2007 |
| 7199657 | Amplification gain stages having replica stages for DC bias control An amplification apparatus is provided that includes a plurality of gain stages including a first gain stage having first and second transistors and a second gain stage having third and fourth transistors. A plurality of replica stages may also be provided that incl... | 04/03/2007 |
| 7180804 | High performance sense amplifier and method thereof for memory system A system and method for sensing a current. The system includes an operational amplifier including a first input terminal, a second input terminal, and a first output terminal. The first input terminal is biased to a predetermined voltage, and the second input termin... | 02/20/2007 |
| 7176765 | Programmable temperature-compensated RC oscillator An on-chip oscillator generates a substantially temperature-independent clock signal by compensating for temperature-induced changes in its RC time constant and in a range between trigger voltages. A resistor with a positive temperature coefficient determines the ra... | 02/13/2007 |
| 7173856 | Sense amplifier for a non-volatile memory device The memory device has a plurality of memory cells each coupled to a bitline. A feedback transistor is coupled to the bitline and provides voltage feedback on the bitline's precharge status. A biasing transistor is coupled to the feedback transistor. The biasing tran... | 02/06/2007 |
| 7170329 | Current comparator with hysteresis A hysteresis current comparator includes a first current comparison unit, a second current comparison unit, and a control circuit connected to the two current comparison units. The first current comparison unit compares a first reference current with an input curren... | 01/30/2007 |
| 7132861 | Amplifier with digital DC offset cancellation feature A high speed, high sensitivity post amplifier as described herein includes a digitally-controlled DC offset cancellation feature. The amplifier circuit is configured to provide DC offset voltage levels in response to a digital control signal, where the digital contr... | 11/07/2006 |
| 7110311 | Sense amplifier for reduced sense delay in low power mode A sense amplifier has a charge sharing compensator to eliminate wake-up delays in an output signal. The charge sharing compensator comprises a capacitor or a charge storing means to compensate for charges in a charge sharing path that has two different voltage poten... | 09/19/2006 |
| 7102452 | Temperature-compensated RC oscillator An on-chip oscillator generates a substantially temperature-independent clock signal by compensating for temperature-induced changes in its RC time constant and in a range between trigger voltages. A resistor with a positive temperature coefficient determines the ra... | 09/05/2006 |
| 7102394 | Programming and control of an integrated circuit using an externally connected resistor network A circuit in an integrated circuit having input terminals coupled to a resistor network for selecting one of multiple digital states includes a tri-state circuit, a multiplexer, a comparator and a control circuit. A DAC can be used to generate a set of comparison vo... | 09/05/2006 |
| 7095279 | AC differential amplifier with reduced low corner frequency An AC differential amplifier includes a pair of identical differential transconductance stages. Each transconductance stage includes a pair of inputs and a pair of outputs. The pairs of output of the transconductance stages are connected in common, and form a pair o... | 08/22/2006 |
| 7091785 | Load and line regulation using operational transconductance amplifier and operational amplifier in tandem An electronic amplifier circuit comprising an operational amplifier circuit, such as a two-stage operational amplifier circuit, in tandem with a operational transconductance amplifier. The electronic amplifier circuit has high open-loop gain and high gain-bandwidth ... | 08/15/2006 |
| 7082004 | Disk storage systems The present invention provides a disk storage system with a low error rate, which is suitable for reduction in size. The other end of the signal line, which is connected with a read head at one end, is connected with a head bias circuit to apply a sense current to t... | 07/25/2006 |
| 7049853 | Resetable control circuit devices for sense amplifiers A device to control a sense amplifier comprise a resetable control circuit containing a first input, a second input, a third input, and an output; the first input coupled to the output or to a ground; the second input coupled to receive a start signal; the third inp... | 05/23/2006 |
| 7046567 | Sense amplifying circuit and bit comparator with the sense amplifying circuit A sense amplifying circuit and a bit comparator having the sense amplifying circuit. The sense amplifying circuit may include a selecting unit, a sensing unit, a latching unit, an output unit, and a switching unit. The selecting unit may select one pair from a first... | 05/16/2006 |
| 7042249 | Method for actuating a transistor The present invention provides a method for actuating a transistor (10) having the following steps: (a) a first predetermined positive potential is applied to a first voltage supply node (13) in a latch circuit (11), the voltage supply node (... | 05/09/2006 |
| 7038954 | Apparatus with equalizing voltage generation circuit and methods of use A memory device includes an equalization voltage generator. The equalization voltage generator includes an oscillator and a charge pump to produce a first voltage, which may be used as an equalization voltage for pairs of complementary digit lines. The oscillator is... | 05/02/2006 |
| 7034619 | Monolithic array amplifier with periodic bias-line bypassing structure and method A bias-line bypassing structure comprises a plurality of bias-line bypass circuits forming a periodic structure at least partially around each of a plurality of amplification units to reduce RF current flow between the amplification units and a grid-bias network. Ea... | 04/25/2006 |
| 7023181 | Constant voltage generator and electronic equipment using the same A constant voltage generator is comprised of a band gap reference circuit, a current supply circuit, a starting circuit and a voltage-current conversion circuit, and the starting circuit is further comprised of a first and second load elements, a first transistor wh... | 04/04/2006 |
| 7015739 | Integrated circuit devices having duty cycle correction circuits that receive control signals over first and second separate paths and methods of operating the same Digital duty cycle correction circuits are provided including a duty cycle detector circuit configured to generate first and second control values associated with a first internal clock signal and a second internal clock signal, respectively. A comparator circuit is... | 03/21/2006 |
| 7015728 | High voltage floating current sense amplifier A high voltage floating current sense amplifier circuit, including first and second resistive devices and a floating amplifier circuit, that senses current through a current sense device coupled between an output node and a battery node each referenced to a common n... | 03/21/2006 |
| 7005915 | Series bridge circuit with amplifiers Two bridge type transducers are coupled in series with their outputs each driving one of a pair of differential amplifiers, with the outputs tied together in a push-pull configuration. In further embodiments, push-pull operation is obtained by matching amplifier gai... | 02/28/2006 |
| 6958926 | Current switching sensor detector A sensor for a switching circuit detects the logical state of the switching circuit by monitoring the current flow through the switching circuit. The current flow is conditioned by one or more current limiters and a voltage regulator, coupled in series with the swit... | 10/25/2005 |
| 6949961 | Power switch structure with low RDSon and low current limit In one embodiment, a power switch device (33) includes a first MOSFET device 41 and a second MOSFET device (42). A split gate structure (84) including a first gate electrode (48,87) controls the first MOSFET device (41). A s... | 09/27/2005 |
| 6937071 | High frequency differential power amplifier A differential CMOS amplifier includes two CMOS inverters and biasing circuitry providing feedback loops across the output and input of each inverter. The biasing circuitry provides linear biasing so that the inverters can apply a desired gain to a pair of high freq... | 08/30/2005 |
| 6937085 | Sense amplifier based voltage comparator The voltage comparator of the present invention comprises a sense amplifier connected to a latch. The sense amplifier has a first input terminal for connecting to the input voltage under consideration and a second input terminal for connecting to the reference volta... | 08/30/2005 |
| 6933769 | Bandgap reference circuit A reference circuit generates a reference voltage from a supply voltage. The reference circuit includes a current generating unit for generating generated currents. An output unit of the reference circuit generates the reference voltage based on the generated curren... | 08/23/2005 |
