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 |
| 8169344 | Method and system for audio CODEC voice ADC processing Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level... | 05/01/2012 |
| 8035536 | Digitally controlled three-phase PFC rectifier A robust decoder generates an output state from input signals related to the line-voltage signals of a three-phase power system, using a segment identification method based on zero-crossings derived from line-voltage difference signals. The robust decoder includes a... | 10/11/2011 |
| 8018357 | System and method for generating test patterns of baseline wander A system and method for generating test patterns of baseline wander, such as worst-case test patterns commonly referred to as killer packets. The number of steps required to cycle an output of a multi-level encoder in order to arrive at an anticipated level is deter... | 09/13/2011 |
| 7936288 | Method and system for audio CODEC voice ADC processing Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level... | 05/03/2011 |
| 7786904 | Voltage level digital system A digital system programmed to accept words wherein each of said words is a collection of “bit” voltage values with each bit value represented by its position in the word and the value of a base raised to a power, said base multiplied by an integer, m. ... | 08/31/2010 |
| 7773000 | Efficient coding of integers in non-power-of-two ranges Coding efficiently in non-power-of-two ranges. Coding is performed in an N-bit system, where certain codes are represented with N bits and other codes are represented with (N+1) bits. An example is where the other codes may have an N-bit representation used to repre... | 08/10/2010 |
| 7692563 | Multiple differential transmission system including signal transmitter and signal receiver connected via three signal lines In a signal transmitter for a multiple differential transmission system including a signal transmitter and a signal receiver connected via three signal lines, first and second differential drivers generate first and second output signals of bipolar four values and h... | 04/06/2010 |
| 7656321 | Signaling system In a signaling system, a first signal and a plurality of second signals are received via a signaling channel. A first received data value is generated in one of at least two states according to whether the first signal exceeds an average of the second signals. ... | 02/02/2010 |
| 7579968 | Encoding of data words using three or more level levels A data processing circuit comprises an encoder circuit for encoding a data word, wherein each digit may have any one of three or more digit values. The data word is encoded so that digit counts in the data word satisfy predetermined criteria (the digit counts are co... | 08/25/2009 |
| 7420484 | Data encoding and decoding using Slepian-Wolf coded nested quantization to achieve Wyner-Ziv coding A system and method for realizing a Wyner-Ziv encoder may involve the following steps: (a) apply nested quantization to input data from an information source in order to generate intermediate data; and (b) encode the intermediate data using an asymmetric Slepian-Wol... | 09/02/2008 |
| 7408483 | Apparatus and method of generating DBI signal in semiconductor memory apparatus An apparatus for generating a DBI signal in a semiconductor memory apparatus includes a data switching detection unit that detects whether or not previous data is consistent with current data and outputs a detection signal according to a detection result, and a DBI ... | 08/05/2008 |
| 7388522 | Sequentially decoded low density parity coding (LDPC) forward error correction (FEC) in orthogonal frequency division modulation (OFDM) systems A method is provided for implementing a coding and adaptive modulation scheme for application to a point-to-point orthogonal frequency division multiplexed radio communications link. The method determines estimates of the likelihood of the two least significant bits... | 06/17/2008 |
| 7366319 | Embedding a multi-resolution compressed thumbnail image in a compressed image file A method (300) of encoding an image into an image code-stream. The method (300) generates a reduced resolution representation of the image and encodes the reduced resolution representation in accordance with a multi-resolution format to form an encoded... | 04/29/2008 |
| 7355532 | voltage level coding system and method We describe a voltage level coding system and method. The voltage level coding system includes a level encoder having an input to receive data segments coded using a first code and an output to supply second data codes indicating one of 2N plus at least o... | 04/08/2008 |
| 7355450 | Differential input buffers for low power supply A differential input buffer that can operate at lower power supply voltages and can receive differential input signals with wide common mode rage. In various embodiments, the invention combines native or depletion mode metal-oxide-semiconductor (MOS) transistors wit... | 04/08/2008 |
| 7339502 | Method and device for transmitting data over a plurality of transmission lines In the case of a method and a device for transmitting data units by way of a transmission medium that comprises at least three adjacent transmission lines, first of all a plurality of codes is supplied. Each code has a number of code sections that corresponds to the... | 03/04/2008 |
| 7327804 | Method for limiting amplitude of a carrier frequency output signal Partial signals of a basic frequency band are used to form a carrier frequency output signal. Each of n partial signals is attributed as an input signal to a representative main branch and the corresponding partial signal is limited in amplitude, filtered and conver... | 02/05/2008 |
| 7315272 | Inverter-based flash analog-to-digital converter using floating resistor ladder An analog-to-digital converter device for converting an analog signal into a digital signal includes a comparator array including a plurality of comparators, each of the comparators including a first inverter and a second inverter connected in series with the first ... | 01/01/2008 |
| 7301391 | Filtering variable offset amplifier A current summing FIR filter can be implemented with multiple differential input stages and variable tail currents. The variable tail currents can be used to appropriately weight the present and previous digital input signals. The weighted outputs of the differentia... | 11/27/2007 |
| 7298293 | Method for encoding data A method for encoding data includes a super cooling process wherein an input stream is manipulated, encoded and summarized to form entities that represent the input stream in a different form in super cooled sets. The super cooled sets can be used for example for th... | 11/20/2007 |
| 7295137 | Data encoding and decoding using Slepian-Wolf coded nested quantization to achieve Wyner-Ziv coding A system and method for realizing a Wyner-Ziv encoder may involve the following steps: (a) apply nested quantization to input data from an information source in order to generate intermediate data; and (b) encode the intermediate data using an asymmetric Slepian-Wol... | 11/13/2007 |
| 7279960 | Reference voltage generation using compensation current method A reference voltage generator that may be useful in analog-to-digital converter (ADC) circuits includes compensation for errors such as from non-ideal considerations such as semiconductor processing variations, mismatch errors, temperature gradients, and parasitic e... | 10/09/2007 |
| 7269212 | Low-latency equalization in multi-level, multi-line communication systems Low-latency equalization mechanisms for multi-PAM communication systems are disclosed that reduce delay and complexity in signal correction mechanisms. The equalization mechanisms tap into input signals for a multi-PAM signal driver, and compensate for attenuation a... | 09/11/2007 |
| 7269229 | Reduced memory architecture for edge modulator The present invention is a filtering apparatus in an 8 Phase Shift Keying (8PSK) system. The filtering apparatus comprises a π/16 phase shift module, a weight distribution module, and a combination module. The π/16 phase shift module is used for shifting a second ... | 09/11/2007 |
| 7257329 | Duobinary pulse shaping for optical transmission systems employing pulse amplitude modulation techniques A duobinary optical communication system is disclosed that employs pulse amplitude modulation (PAM) techniques to provide further improvements in spectral efficiency. A disclosed PAM duobinary optical transmitter converts a plurality of input bits to an N level sign... | 08/14/2007 |
| 7256716 | Data encoding and decoding using Slepian-Wolf coded nested quantization to achieve Wyner-Ziv coding A system and method for realizing a Wyner-Ziv encoder may involve the following steps: (a) applying nested quantization to input data from an information source in order to generate intermediate data; and (b) encoding the intermediate data using an asymmetric Slepia... | 08/14/2007 |
| 7254702 | Method of distributed recording whereby the need to transition to a second recording device from a first recording device is broadcast by the first recording device An automatically configuring storage array includes a plurality of media storage devices coupled together within a network of devices. Preferably, the network of devices is an IEEE 1394-2000 serial bus network of devices. The media storage devices are utilized to re... | 08/07/2007 |
| 7251207 | Multi-level data processing method and apparatus A multi-level data processing method converts a binary data into a multi-level data having n bits per symbol, where n is an integer satisfying n≧2. A {(n−1)×m}-bit binary data is arranged in upper (n−1) bits of multi-level data of m symbols, where m is an int... | 07/31/2007 |
| 7221711 | Multilevel data encoding and modulation technique The multilevel data encoding and modulation technique uses a pair of complementary logic sets. In its most basic form, the sets are binary sets each containing a line level for a logical one and a line level for a logical zero for a total of four logic levels. The e... | 05/22/2007 |
| 7218256 | DC-free code having limited error propagation and limited complexity A method and apparatus are provided for decoding a sequence of code words into a sequence of data words. Each code word includes an encoded data word and an indicator bit. The encoded data word is extracted unchanged into a respective unencoded data word if an indic... | 05/15/2007 |
| 7209057 | Decode circuitry and a display device using the same Multi-bit input data is divided into at least a first bit group and a second bit group, and each of first sub-decode circuits selects one selection target signal/voltage from selection target signal/voltage group in accordance with the first bit group. Then, one sig... | 04/24/2007 |
| 7170432 | Addresses generation for interleavers in turbo encoders and decoders An arrangement for generating addresses for interleaving/de-interleaving sequences (X1, X2, X3, . . . , XK) including a given number (K) of items, wherein each value for said given number (K) identifies a corresponding set... | 01/30/2007 |
| 7167109 | Hybrid fractional-bit systems The present invention abandons the conventional approach of incrementing bits-per-cell b by 1, but allows increments of states-per-cell N by as little as 1 between product generations. Because N is no longer an integral power of 2, b takes a fractional value, result... | 01/23/2007 |
| 7155828 | Razor having deformable shaving aid ejection system and method of ejecting shaving aid A shaving aid delivery system for a shaving system includes a razor head having a resilient reservoir for holding a shaving aid and a piezoelectric ceramic disposed adjacent the resilient reservoir. The delivery system also includes a shaving strip disposed within t... | 01/02/2007 |
| 7149256 | Multilevel pulse position modulation for efficient fiber optic communication Decreasing the average transmitted power in an optical fiber communication channel using multilevel amplitude modulation in conjunction with Pulse Position Modulation (PPM). This multilevel PPM method does not entail any tradeoff between decreased power per channel ... | 12/12/2006 |
| 7145483 | Chip to chip interface for encoding data and clock signals A chip to chip interface comprises a driver configured to receive a data signal and provide an output signal at a first level in response to receiving an odd number of consecutive logic highs in the data signal, at a second level in response to receiving an odd numb... | 12/05/2006 |
| 7142612 | Method and apparatus for multi-level signaling A system transmits data on a multi-conductor signal path, which produces a current flow based on the value of the data transmitted. The system reduces changes in current flow between successive data transmissions by encoding data values represented by sets of N bits... | 11/28/2006 |
| 7126408 | Method and apparatus for receiving high-speed signals with low latency An apparatus and method for receiving high-speed signals having a wide common-mode range with low input-to-output latency. In one embodiment, the receiver includes an integrator to accumulate charge in accordance with an input signal during an integration time inter... | 10/24/2006 |
| 7124292 | Automatically configuring storage array including a plurality of media storage devices for storing and providing data within a network of devices An automatically configuring storage array includes a plurality of media storage devices coupled together within a network of devices. Preferably, the network of devices is an IEEE 1394-1995 serial bus network of devices. The media storage devices are utilized to re... | 10/17/2006 |
| 7113001 | Chip to chip interface A chip to chip interface comprises a driver configured to provide a first signal in response to a change in first data at one edge of a clock signal and a second signal in response to a change in second data at another edge of the clock signal. The chip to chip inte... | 09/26/2006 |
