Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8183894 | Device for and a method of generating signals A device (100) for generating an output signal (So) having substantially same or increased output frequency compared to an input frequency of an input signal (Si), the device (100) comprising: a bipolar transistor (102) having a base (B), a coll... | 05/22/2012 |
| 8115521 | Frequency error detecting circuit, frequency error detecting method, and frequency correcting circuit A frequency error detecting circuit includes: an oscillator; a frequency converting unit for a received signal on the basis of the oscillation output and output the received signal; a time-to-frequency converting unit configured to convert the output of the frequenc... | 02/14/2012 |
| 7999580 | Band converted signal generator and band extender A band converted signal generator includes a low range characteristic application section (16) as a component emphasis means emphasizing only one or more specific frequency components selected from among frequency components of an input signal; and a low pass... | 08/16/2011 |
| 7924068 | Automatic adjustment circuit, and filter circuit An automatic adjustment circuit comprises a replica (1) constituted of either a circuit block of a portion of a filter body (3) or a combination of the circuit block, and fed with a reference signal (2) from the outside, for outputting signals h... | 04/12/2011 |
| 7876134 | Circuit for changing frequency of a signal and frequency change method thereof A signal frequency change circuit is presented. The signal frequency change circuit includes a delay line, a detector, a controller, a multiplexer, and an output unit. The delay line delays a clock signal by a first delay time corresponding to a delay control signal... | 01/25/2011 |
| 7705639 | Method and apparatus for high performance automatic frequency control in a wireless receiver An apparatus and a method are disclosed wherein a clock generator component converts a received clock signal into a plurality of internal clock signals which are skewed in time, a phase difference component computes phase differences at subsequent clock phases of a ... | 04/27/2010 |
| 7667504 | Signal delay element, method and integrated circuit device for frequency adjustment of electronic signals The invention relates to frequency adjustment of electronic signals. The method comprises the steps of providing an output signal of a frequency generator with a first frequency as input signal for a signal delay element providing an edge of said input signal of sai... | 02/23/2010 |
| 7554368 | Frequency adjusting circuit for CPU A frequency adjusting circuit for a central processing unit (CPU) includes a transforming unit for transforming a change of a current signal of the CPU into a voltage signal, an amplifying unit for amplifying the voltage signal from the transforming unit, a switchin... | 06/30/2009 |
| 7468620 | Frequency generator apparatus and control circuit thereof A frequency generator apparatus and a control circuit thereof are provided. The frequency generator apparatus comprises the control circuit and a frequency generator, wherein the control circuit contains an electric fuse (efuse). The control circuit outputs an enabl... | 12/23/2008 |
| 7443211 | Transmitter and transmission circuit Transmitter and transmission circuit. For realizing a differential transmitter, a switch circuit is connected between two load transistors of two complementary MOS pairs. The switch circuit can have two inductors. When the two complementary MOS pairs are conducting ... | 10/28/2008 |
| 7443253 | Detection device for detecting oscillator A detection device for detecting an oscillator is provided. The detection device includes an oscillator control circuit, a frequency-decreasing circuit and a display circuit. The oscillator control circuit is used for outputting the oscillator signal of the oscillat... | 10/28/2008 |
| 7437137 | Mixer system A mixer system includes a multi-phase signal generator, a mixer, and a mixer control circuit. The multi-phase signal generator generates a plurality of mixer input signals, where each has a frequency equal to the others, and a phase, and where the phases are distrib... | 10/14/2008 |
| 7432751 | High performance signal generation A high performance phase detector includes a local digital oscillator for generating a digital reference signal of programmable frequency and phase. The phase detector accumulates a difference in phase between the digital reference signal and a sampled input signal ... | 10/07/2008 |
| 7425976 | Variable frequency generator A digital circuit generates very precise varying clock frequencies for applications that can tolerate a small degree of jitter but require exact longer term frequencies, e.g. a video clock for a laser printer. Some subpixel jitter is acceptable, but the overall pixe... | 09/16/2008 |
| 7424281 | Image-rejection mixers having high linearity and high gain and RF circuits using the same An integrated semiconductor image-rejection mixer having high linearity and high gain. In addition to the components of a classic image-rejection architecture, the present mixer has a high-frequency current-diverting stage that permits the operation of the output st... | 09/09/2008 |
| 7389098 | Heterodyne receiver for low noise and image frequency repression Disclosed is a heterodyne receiver for low noise and image frequency repression, comprising: a low noise amplifier for receiving an input signal from an antenna and amplifying the signal while reducing a noise figure of the input signal; and a frequency converter fo... | 06/17/2008 |
| 7379723 | Local oscillator and mixer for transceiver In one embodiment, a local oscillator and mixer architecture may include a frequency divider having I and Q channel master storage elements formed of devices of a first size, and I and Q channel slave storage elements formed of devices of a second size, where the se... | 05/27/2008 |
| 7368958 | Methods and systems for locally generating non-integral divided clocks with centralized state machines A method for locally generating a ratio clock on a chip includes generating a global clock signal having a global clock cycle. A centralized state machine includes a counter going through a complete cycle in response to a non-integer number of global clock cycles, t... | 05/06/2008 |
| 7366484 | Systems and methods for adjusting the bias level of a mixer in a transmitter A mixer having dynamic biasing, comprises a mixer configured to receive a local oscillator (LO) reference signal and a radio frequency (RF) data signal, and a bias control circuit configured to reduce bias current from the mixer under a low power condition. ... | 04/29/2008 |
| 7358781 | Automation device with stored profile The invention relates to an automation device, in which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The device has a microcontroller (110), which is assigned at least one cl... | 04/15/2008 |
| 7355471 | Circuit for DC offset cancellation A circuit having multiple overlapped feedback loops for DC offset cancellation is provided with applying in one of multistage amplifier, multistage filter, and the combination thereof. The circuit includes a plurality of negative feedback variable bandwidth switches... | 04/08/2008 |
| 7348822 | Precisely adjusting a local clock Accurate correction of a local clock that avoids excessive drift in the local clock while avoiding an accumulation of quantization errors. A local clock according to the present techniques generates a local time by accumulating a sequence of rate coefficients select... | 03/25/2008 |
| 7339453 | Differential mode inductor with a center tap A differential mode inductor includes a first inductor lead that receives a current. A first arm receives the current from the first inductor lead. A center tap receives the current from the first arm. A second arm receives the current from the center tap. The secon... | 03/04/2008 |
| 7332944 | Frequency-controllable oscillator A frequency-controllable oscillator, having an oscillation device in which the oscillation frequency is controlled on the basis of a feedback current or voltage; a constant current source circuit; a charge device which charges a capacitor with a constant current fro... | 02/19/2008 |
| 7328354 | Apparatus and method for real-time adjusting system performance of a computer An apparatus for adjusting system performance of computer is fabricated on a motherboard. The apparatus comprises a plurality of performance monitor means and a performance control chip. The performance monitor means are connected separately to bus lines which are a... | 02/05/2008 |
| 7323914 | Charge pump circuit Adverse effects of switching noise produced by a charge pump circuit on a displayed image are prevented. In a synchronizing separation circuit 18, a synchronizing signal is separated from a video signal. The separated synchronizing signal is subjected to ½ f... | 01/29/2008 |
| 7324791 | Low-noise differential bias circuit and differential signal processing apparatus A low-noise differential bias circuit is provided which obtains excellent noise characteristics while ensuring excellent distortion characteristics. A collector of a transistor Q11 is connected to a voltage supply point (Vcc) via a resistor R15. A base... | 01/29/2008 |
| 7321735 | Optical down-converter using universal frequency translation technology A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w... | 01/22/2008 |
| 7321751 | Method and apparatus for improving dynamic range in a communication system An apparatus for improving dynamic range includes a frequency down-conversion module that receives an input signal and a bias circuit. The bias circuit includes a first resistor and a second resistor. The first resister has a first terminal coupled to a bias point a... | 01/22/2008 |
| 7319851 | Mixer circuit, receiver comprising a mixer circuit, wireless communication comprising a receiver, method for generating an output signal by mixing an input signal with an oscillator signal The invention relates to a mixer circuit comprising an input node for receiving an input signal, a first output node 202, and a second output node 203, voltage to current conversion means and switching means operatively coupled to each other and to the... | 01/15/2008 |
| 7315730 | Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output An architecture for a receiver front end utilizes a dual output low noise amplifier (102) driving separate, fixed preselectors (104, 106) coupled to a transformer (108) to generate a single ended output (113). A pair of blocks coupled in ... | 01/01/2008 |
| 7304522 | Spread spectrum clock generator A spread spectrum clock generator includes a plurality of delay cells, wherein each delay cell includes at least one delayer receiving an external clock signal and causing a predetermined propagation delay to the received clock signal, and a controller transmitting ... | 12/04/2007 |
| 7304512 | Frequency divider and an electronic device incorporating such a frequency divider The frequency divider for high-frequency clock signal comprises: a shift register (8) having cells (10-13) for storing each bit of an initial word, said cells being series connected in a loop (14), and said shift register being capable of... | 12/04/2007 |
| 7302237 | Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis A wideband signal generator according to one embodiment of the invention includes a variable frequency source and a direct digital synthesizer. Local oscillators, signal analyzers, modulators, demodulators, and other equipment including one or more such generators a... | 11/27/2007 |
| 7301377 | Demodulation apparatus and receiving apparatus A demodulation apparatus that can support various oscillation frequencies. The portable phone device includes a frequency synthesizer for generating a local-oscillation signal having a local oscillation frequency for converting the frequency of an input receiving si... | 11/27/2007 |
| 7301459 | Closed loop transmitter control for power amplifier in an EAS system A method for controlling operation of a transmitter in an electronic article surveillance (EAS) system is described that includes coupling each of a plurality of transmit channels to a corresponding antenna, configuring a modulator within each transmit channel to ou... | 11/27/2007 |
| 7295826 | Integrated frequency translation and selectivity with gain control functionality, and applications thereof Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 11/13/2007 |
| 7292835 | Wireless and wired cable modem applications of universal frequency translation technology Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil... | 11/06/2007 |
| 7290155 | Method, system, and apparatus for dynamically configuring the operating point utilized for thermal management of an integrated circuit Methods and circuits to define a thermal operating mode for a integrated device by defining an operating voltage and a frequency range. ... | 10/30/2007 |
| 7290158 | Method of controlling data transfer within a semiconductor integrated circuit based on a clock sync control signal A semiconductor integrated circuit device comprises an internal bus, a plurality of internal modules connected to the internal bus and including a main module performing a predetermined function, and a clock generating unit generating a reference clock and a clock s... | 10/30/2007 |
