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 |
| 7633340 | Apparatus and method for determining the voltage level of an input signal The present invention discloses an apparatus and a method for determining the voltage level of a first signal from a playback device having an interface in compliance with an industrial standard. According to the method, first receive the first signal by a signal re... | 12/15/2009 |
| 7535299 | High-frequency amplification circuit A resonance circuit comprising, for example, an inductor and a plurality of capacitors is provided as a load of a transistor. The capacitors are changed over by a switch. As the capacitors are changed over by the switch, a resonance frequency is changed according to... | 05/19/2009 |
| 7486138 | Bipolar audio signal switch An audio signal switch has a plurality of inputs and an output. Each input is arranged to be selectively connected to the output via a respective transmission chain, each transmission chain includes: a first bipolar transistor, of a first type, connected to the inpu... | 02/03/2009 |
| 7389194 | Driver calibration methods and circuits Described are amplifiers that facilitate high-speed communication with calibrated drive strength and tennination impedance. Drivers and termination elements can be divided into a number N of parallel portions, one or more of which can be updated while signals (e.g, ... | 06/17/2008 |
| 7385448 | Circuitry for adaptively generating and using a reference voltage a circuit for an RFID device in one embodiment includes an operational amplifier having a first input, a second input, and an output where the first input receives an incoming signal, arid the second input is coupled to the output via a feedback loop. An operational... | 06/10/2008 |
| 7371564 | Apparatus for automatically analyzing genetic and protein materials using photodiodes An apparatus for automatically analyzing genetic and protein materials using photodiodes. The apparatus comprises a computer for controlling the entire operation of the apparatus and analyzing a voltage level from a characteristic detector to analyze states of the g... | 05/13/2008 |
| 7369781 | Burst mode optical receiver considering characteristic of extinction ratio of received optical signal Provided is a burst mode optical receiver considering a characteristic of an extinction ratio of a received optical signal is provided. By using a peak detector considering a characteristic of an extinction ratio, top and bottom peak voltages of actual burst packets... | 05/06/2008 |
| 7358968 | Sustain driver, sustain control system, and plasma display The collector, emitter, and base of a bipolar transistor circuit are connected to a high side power supply terminal, the drain of a level shift transistor, and a floating power supply terminal, respectively. When a high side output transistor is on, the floating pow... | 04/15/2008 |
| 7358808 | Method and device for amplification of data signals over power lines A device for bi-directional amplification of data signals over power lines is disclosed. In one embodiment, the device includes a bandpass filter, a frequency converter and an amplifier. The bandpass filter filters out undesired frequencies and the frequency convert... | 04/15/2008 |
| 7348847 | Integrated implementation of a collector boost scheme and method therefor A collector boost circuit is disclosed for providing a first voltage in a first mode of operation to a power amplifier, and a second voltage in a second mode of operation to the power amplifier. The collector boost circuit uses a switch and an indicator signal for t... | 03/25/2008 |
| 7348846 | Amplifier arrangement The present invention relates to an amplifier arrangement having a plurality of amplifier stages that form a series circuit. Each amplifier stage comprises a current mirror, the translation ratio of which defines the gain of the amplifier stage. Moreover, a current ... | 03/25/2008 |
| 7345545 | Enhancement mode transceiver and switched gain amplifier integrated circuit Methods and apparatus are provided for RF switches (504, 612) integrated in a monolithic RF transceiver IC (500) and switched gain amplifier (600). Multi-gate n-channel enhancement mode FETs (50, 112, 114, Q1-3, Q4- | 03/18/2008 |
| 7289610 | Digital subscriber line service over loaded loops The preferred embodiments of the present invention generally provide improved communications over a subscriber loop that is loaded with at least one and potentially a plurality of load coils. The preferred embodiments of the present invention will work over loaded s... | 10/30/2007 |
| 7196552 | Comparator circuit with offset cancellation A method of comparing signals includes obtaining first and second signals to be compared and first and second offset cancellation signals, combining the first offset cancellation signal with the first signal to be compared to form a first combined signal and combini... | 03/27/2007 |
| 7190716 | Line powered loop extender with communications, control, and diagnostics A Digital Subscriber Line (DSL) network for improving the transmission of DSL signals includes a plurality of local loops for transmission of upstream and downstream DSL signals, control signals, and Direct Current (DC) power, a plurality of loop extenders with comm... | 03/13/2007 |
| 7180208 | Switch structure for reduced voltage fluctuation in power domains and sub-domains System and method for reducing voltage fluctuations in an integrated circuit with multiple power domains and sub-domains. A preferred embodiment comprises a plurality of voltage sources and a switching network (such as switching network 320) wherein outputs f... | 02/20/2007 |
| 7180369 | Baseband filter start-up circuit An electrical circuit includes an amplifier. The amplifier includes an input circuit in communication with an input of the amplifier. The amplifier includes a start-up circuit in communication with the input circuit. The start-up circuit is configured to generate a ... | 02/20/2007 |
| 7136058 | Display apparatus, digital-to-analog conversion circuit and digital-to-analog conversion method A signal line drive circuit according to the present invention has: a latch circuit which latches digital pixel data; a D/A converter which converts a latch output from the latch circuit into an analog video signal; an AMP which amplifies the analog video signal con... | 11/14/2006 |
| 7129779 | Semiconductor device with floating block A band gap circuit using NPN transistors (10, 12) having collectors connected to a power source voltage is employed, and transistor active regions of the NPN transistors (10, 12) and semiconductor elements constituting other signal processing circuits ... | 10/31/2006 |
| 7058823 | Integrated circuit having programmable voltage level line drivers and method of operation There is disclosed, for use in an integrated circuit, an apparatus for driving a signal line in the integrated circuit. The apparatus comprises: 1) a line driver for receiving an incoming data signal and transmitting an outgoing data signal on the signal line; 2) a ... | 06/06/2006 |
| 6970152 | Stacked amplifier arrangement for graphics displays A column driver for a graphics display has reduced power consumption by sharing power between upper and lower column amplifiers. The upper column amplifier operates over an upper supply range, while the lower column amplifier operates over a lower supply range. The ... | 11/29/2005 |
| 6967531 | Multi-output amplifier with isolation between outputs An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an intermediate signal in response to an input signal. The second circuit may be configured to generate a plurality of output signals in response to the int... | 11/22/2005 |
| 6967530 | Circuit and semiconductor device for reducing the generation of shock noise of a power amplifier outputting amplified audio signals A circuit for a power amplifier is disclosed which amplifies and outputs an audio signal by amplifying an input audio signal using first and second differential circuits, and driving a push-pull output transistor with the outputs from the first and second differenti... | 11/22/2005 |
| 6949865 | Apparatus and method for generating electrical current from the nuclear decay process of a radioactive material An apparatus and method for generating electrical power from the decay process of a radioactive material is disclosed, wherein a volume of radioactive material and a junction region are enclosed in a cell. The junction region is formed by appropriate construction of... | 09/27/2005 |
| 6947529 | DSL compatible load coil A load coil is disposed along a local loop for conditioning POTS signals while permitting passage of higher frequency DSL signals with low attenuation. In one embodiment, the load coil includes a coupled inductor having multiple capacitive elements coupled thereto, ... | 09/20/2005 |
| 6933787 | Linearized darlington amplifier An apparatus comprising a Darlington transistor pair and a common-base transistor. The Darlington transistor pair may be configured to generate an output signal in response to an input signal. The common-base transistor may (i) be coupled between an output transisto... | 08/23/2005 |
| 6870696 | CMOS low-noise MR read head pre-amplifier circuit A preamplifier system is provided for use with a magneto-resistive (MR) sensor. Included is an alternating current (AC) coupling module connected to the MR sensor for blocking a direct current (DC) voltage associated with an input signal, and filtering low frequency... | 03/22/2005 |
| 6861909 | High voltage-wide band amplifier An apparatus comprising a Darlington transistor pair, a first common-base transistor and a second common-base transistor. The Darlington transistor pair may be configured to generate an output signal in response to an input signal. The first common-base transistor m... | 03/01/2005 |
| 6838943 | Input follower system and method An equalizer circuit for equalizing first and second differential input signals comprises a differential pair, a reactive load, and first and second input followers. The differential pair defines first and second input nodes and first and second output nodes, and th... | 01/04/2005 |
| 6832077 | Microwave isolator A microwave isolator including a driving circuit and a receiving circuit, wherein the driving circuit receives an input signal from a first isolated circuit and generates a corresponding radio frequency (RF) signal and the receiving circuit detects and decodes the c... | 12/14/2004 |
| 6765441 | Differential amplifier A differential amplifier and a method for amplifying an input signal are disclosed. The differential amplifier comprises an amplification stage configured to amplify an input signal to produce an amplified output, a current source configured to provide a bias curren... | 07/20/2004 |
| 6670674 | Transistor and power amplifier with improved bandwidth The invention relates to an LDMOS transistor including a gate, source and drain, and an earth plane located under the gate, source and drain. According to the invention, the earth plane is given such an extent in the lateral direction of the transistor th... | 12/30/2003 |
| 6670847 | Inductive amplifier with a feed forward boost An inductive amplifier having a feed forward boost is provided, thereby improving the gain of the inductive amplifier at frequencies greater than 1 GigaHertz. The inductive amplifier includes a feed-forward boost circuit coupled to intermediate nodes of a... | 12/30/2003 |
| 6580316 | Power transistor module, power amplifier and methods in the fabrication thereof The present invention relates to a power transistor module for radio frequency applications, particularly for use in an amplifier stage in a radio base station or a ground transmitter for TV or radio, wherein said power transistor module comprises a suppo... | 06/17/2003 |
| 6577654 | Optical signal power monitor and regulator An optical signal power monitor and regulator comprises: a lasing semiconductor optical amplifier for receiving the optical signal and whose laser output is used to monitor a power level of the optical signal; a monitor circuit which receives the laser ou... | 06/10/2003 |
| 6473009 | PWM power amplifier A PWM power amplifier having at least one PCM/PWM converter fed by PCM digital input signals and producing PWM digital output signals, and at least one power amplification final stage of the PWM digital output signals. At least one PCM/PWM converterinclud... | 10/29/2002 |
| 6347104 | Optical signal power monitor and regulator An optical signal power monitor and regulator comprises: a lasing semiconductor optical amplifier for receiving the optical signal and whose laser output is used to monitor a power level of the optical signal; a monitor circuit which receives the laser ou... | 02/12/2002 |
| 6268632 | Field effect transistor and power amplifier including the same A transistor includes a source region; a drain region; a channel region interposed between the source region and the drain region; and at least a first gate electrode and a second gate electrode provided on the channel region. At least one of the first an... | 07/31/2001 |
| 6119148 | Computer video signal distributor between a computer and a plurality of monitors A computer video signal distributor receives as inputs the video signals of a computer, and then processes and distributes these video signals to a plurality of monitors. The computer video signal distributor includes three transistor common based voltage... | 09/12/2000 |
| 5929759 | Proximity detector with rapid reception amplification A proximity detector including a rapid transistor (i.e., one having a very high product gain-band) connected to a high potential voltage via a capacitor. The capacitor is connected in series to a source of a pulsed current that is a function of the proxim... | 07/27/1999 |
