Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7313034 | Low supply voltage temperature compensated reference voltage generator and method A reference voltage generator uses a conventional forward junction voltage generating device and a conventional thermal generator to generate a thermal voltage. The forward junction voltage and the thermal voltages have respective thermal sensitivities that act oppo... | 12/25/2007 |
| 7309978 | Reference voltage generating circuit with ultra-low power consumption A reference voltage generating circuit with ultra-low power consumption, which includes: a constant current circuit part generating a first constant current from a supply voltage; a current mirror circuit part mirroring the constant current and supplying a second co... | 12/18/2007 |
| 7310014 | Internal voltage generator An internal voltage generator for stably generating an internal voltage includes a latch unit for outputting a first and a second driving signals based on a periodic signal; a first pump block for generating the internal voltage in response to the first driving sign... | 12/18/2007 |
| 7307465 | Step-down voltage output circuit To provide a step-down voltage output circuit which causes no latch-up phenomenon for the period between activation of a power supply and complete start of operation of a charge pump circuit. The step-down voltage output circuit of the present invention has the char... | 12/11/2007 |
| 7304465 | Power supply circuit capable of efficiently supplying a supply voltage A power supply circuit generates a supply voltage based on an input constant voltage and supplies the supply voltage to a load. A delay circuit delays the input constant voltage. An output circuit generates the supply voltage from the input constant voltage delayed ... | 12/04/2007 |
| 7304466 | Voltage reference circuit compensated for non-linearity in temperature characteristic of diode Disclosed is a reference voltage generating circuit comprising a first reference current circuit including first and second current-to-voltage converting circuits, control means for exercising control in such a manner that prescribed output voltages of the first and... | 12/04/2007 |
| 7301321 | Voltage reference circuit A voltage reference circuit including a positive temperature coefficient current generator, a negative temperature coefficient current generator, and a first resistor is provided. In the positive temperature coefficient current generator, two transistors are operate... | 11/27/2007 |
| 7300124 | Recording head and recording apparatus using the same A recording head or the like having a voltage generating circuit which does not depend on a voltage fluctuation of a heater driving power source (first power source) is provided. The recording head has: a plurality of heaters connected to a power line VH as a heater... | 11/27/2007 |
| 7301389 | Curvature-corrected band-gap voltage reference circuit This band-gap circuit overcomes the deficiencies of conventional band-gap circuits by compensating for higher order temperature effects, thereby increasing accuracy. A first resistor network including two resistors is connect to a first transistor while a second res... | 11/27/2007 |
| 7302592 | Integrated circuit which disables writing circuitry to memory when the power drops below a power threshold predetermined and controlled by the processor An integrated circuit comprising a processor, non-volatile memory, an input for receiving power from a power supply and a power detection unit, wherein the integrated circuit is configured to enable multi-word writes to the non-volatile memory, the power detection u... | 11/27/2007 |
| 7301322 | CMOS constant voltage generator A CMOS constant voltage generator circuit having input and output stages and at least one compensation stage. Each stage can comprise a single transistor or more typically a transistor stack. Current mirroring is performed between the input stage and compensation st... | 11/27/2007 |
| 7301316 | Stable DC current source with common-source output stage A current source is provided for use with integrated circuits such as programmable logic device integrated circuits. The current source has an operational amplifier with positive and negative inputs and an output. The output is connected to a common-source output st... | 11/27/2007 |
| 7298200 | Voltage generation circuits for supplying an internal voltage to an internal circuit and related methods Internal voltage generators are provided, as well as methods of overdriving an internal voltage generation circuit. Embodiments of the internal voltage generator comprise a first driver for receiving an external voltage to supply an internal voltage to the internal ... | 11/20/2007 |
| 7288925 | Band gap reference voltage circuit In a band gap reference voltage circuit, a band gap cell circuit composed of two transistors is driven with different current densities under a bias condition in which first and second reference voltages output in accordance with the operating states of the two tran... | 10/30/2007 |
| 7288926 | Internal power voltage generator for reducing current consumption An internal voltage generator and method are provided, the internal voltage generator including a first reference voltage generator for receiving an external voltage and providing a first reference voltage, a second reference voltage generator for receiving an inter... | 10/30/2007 |
| 7287235 | Method of simplifying a circuit for equivalence checking A method of simplifying a logic circuit for enabling cycle-by-cycle equivalence checking is provided. To accomplish this, first, a logic circuit is identified to be a variable delay circuit or a fixed delay circuit. If the logic circuit is a variable delay circuit, ... | 10/23/2007 |
| 7286004 | Current source circuit According to the present invention, after a bias circuit (20) starts, a startup circuit (10) is isolated from the bias circuit (20) according to a bias voltage generated on an isolating voltage node (V2) from the bias circuit (20) ... | 10/23/2007 |
| 7282901 | Temperature independent low reference voltage source A circuit of the invention comprises a low voltage PTAT source. Current generators (t1, t2) are controlled so that their output currents I1 and I2, respectively, have temperature properties of the quotient VPTAT/R. The current ... | 10/16/2007 |
| 7282988 | Bandgap reference circuit A bandgap reference circuit is proposed. To remove parasitic effects, this includes the combination of a first circuit section (1), which generates a temperature-proportional voltage, and a second circuit section (2), which generates an inversely tempe... | 10/16/2007 |
| 7282987 | Internal voltage generator An internal voltage generator for stably generating an internal voltage includes: a latch unit for generating a first and a second driving signals which have exact 180-degree phase difference based on a periodic signal, a first pump block for generating the internal... | 10/16/2007 |
| 7279954 | On-chip temperature detection device An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector c... | 10/09/2007 |
| 7279881 | Integrated circuit for regulating a voltage generator An integrated circuit includes a voltage generator with a first controllable resistor and a second controllable resistor, through which a first input terminal that applies a first voltage potential and a second input terminal that applies a second voltage potential ... | 10/09/2007 |
| 7279880 | Temperature independent low voltage reference circuit A temperature independent low voltage reference circuit comprises a first transistor with a threshold voltage Vth having a negative temperature coefficient. A diode having a forward voltage drop with a negative temperature coefficient coupled with its anode connecte... | 10/09/2007 |
| 7276890 | Precision bandgap circuit using high temperature coefficient diffusion resistor in a CMOS process Disclosed are bandgap circuits that use a resistive divider circuit to modulate the gate voltage of a reference source transistor. The reference voltage transistor is modulated at the base by a voltage that varies inversely with temperature. In this fashion, high sh... | 10/02/2007 |
| 7276948 | Reset circuit A reset circuit includes a power supply supplying a power supply voltage, and a band-gap reference that generates a voltage reference signal. A resistor start-up circuit is responsive to the voltage reference signal, and further responsive to an increase in the powe... | 10/02/2007 |
| 7276889 | Detect/modulate circuit A detect/modulate circuit comprises a plurality of modulate resistors connected to a main resistor of a bandgap in series, and each module resistor is connected to a transistor switch in parallel, and each transistor switch is connected to a logic controller, and th... | 10/02/2007 |
| 7278034 | Integrated circuit which disables writing circuitry to memory when the power drops below a power threshold predetermined and controlled by the processor An integrated circuit comprising a processor, a memory that the processor can access, a memory access unit for controlling accesses to the memory, an input for receiving power for the integrated circuit from an external power source, and a power detection unit, the ... | 10/02/2007 |
| 7274209 | Low voltage to high voltage signal level translator with improved performance A circuit for shifting a signal from a first voltage level to a second voltage level. In one embodiment, a voltage translator circuit has first and second transistors that are cross-coupled; a third transistor having a gate coupled with the input signal, the third t... | 09/25/2007 |
| 7274250 | Low-voltage, buffered bandgap reference with selectable output voltage A temperature-independent voltage reference containing two independent bias circuits powered by the reference voltage, each bias circuit containing components with an exponential dependence of current on voltage and one containing a resistive impedance, and further ... | 09/25/2007 |
| 7274216 | Duty cycle controlled CML-CMOS converter There is provided a CML to CMOS converter comprising two current sources both connected between a first power supply, having a first potential, and a driving node, first and second push-pull drive stages each having a current path connected between a second power su... | 09/25/2007 |
| 7271503 | Power supply circuit including stably operating voltage regulators A power supply circuit is constructed by a step-up circuit for receiving an input DC voltage to generate a plurality of output DC voltages, and a plurality of voltage regulators, each powered by two voltages selected from a combination of the output DC voltages and ... | 09/18/2007 |
| 7272523 | Trimming for accurate reference voltage A method for trimming reference voltage circuitry includes defining a desired target reference voltage for a set of at least one die. At least two reference voltages are measured for at least two different trim settings associated with a given die of the at least on... | 09/18/2007 |
| 7268529 | Reference voltage generating circuit, a semiconductor integrated circuit and a semiconductor integrated circuit apparatus The present invention provides a band gap type reference voltage generating circuit and a semiconductor integrated circuit having the same, capable of generating a reference voltage of about 1.2V or less whose temperature dependency is low, and realizing reduced off... | 09/11/2007 |
| 7268711 | Method and circuit for amplitude compensation in a digital-to-analog converter An amplitude-compensated digital-to-analog converter circuit and method of compensation. A unipolar digital-to-analog converter is provided, having a reference connection and a pair of differential, unipolar signal outputs. A sensing circuit senses the common mode c... | 09/11/2007 |
| 7265601 | Adaptive gate drive voltage circuit A circuit and method for reducing losses in a DC/DC converter by optimizing gate drive voltage. The circuit and method detect a change in the output load, or more specifically the output current, and adjust the gate voltage accordingly; in other words, providing ada... | 09/04/2007 |
| 7265529 | Zero power start-up circuit An improved start-up circuit and method for self-bias circuits is described that applies a start-up voltage and current to a self-bias circuit to initialize its operation in its desired stable state. Once the self-bias circuit converges to its desired state of opera... | 09/04/2007 |
| 7265608 | Current mode trimming apparatus A current mode trimming apparatus for trimming a desired current is provided. The trimming apparatus includes a first transistor, a first resistor, an operational amplifier, a first controlled current source, and a second controlled current source. The first and sec... | 09/04/2007 |
| 7259614 | Voltage sensing circuit An auto voltage sense circuit uses voltage controlled current sources to generate a desired reference voltage level that closely tracks the variations and changes of a first voltage level and a second voltage level. The auto voltage sensing circuit includes a first ... | 08/21/2007 |
| 7259703 | Device for recording laser trim progress and for detecting laser beam misalignment The device for detecting and tracking a status of a device under laser trim includes: a series connected string of trim tracking links; and a plurality of detecting devices wherein each detecting device is coupled in parallel with a corresponding trim tracking link.... | 08/21/2007 |
| 7259543 | Sub-1V bandgap reference circuit A bandgap reference circuit is disclosed operating under a predetermined low voltage source. The circuit has a first circuit with a first differential amplifier for generating a first current, a second circuit with a second differential amplifier for generating a se... | 08/21/2007 |
