Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7443913 | High speed decision feedback equalizer An equalizer comprises a sampler, a filter, and a summer. The sampler samples a signal indicative of an input communication signal to determine digital decision output signals having a communication device data rate. The filter receives digital decision output signa... | 10/28/2008 |
| 7356100 | Estimating channel impulse response and equalizer coefficients in UWB communication systems A method estimates a channel impulse response in an ultra wide bandwidth (UWB) system. Multiple training sequences modulated at a chip rate are received. Each training sequence is sampled by parallel with multiple correlators at sampling rate substantially slower th... | 04/08/2008 |
| 7242707 | Multiband ultra wideband communications A multiband ultra wideband (UWB) communication is presented to implement multichannel shaped-pulses in parallel for indoor and outdoor UWB operations. The multiband UWB communication has a flexibility to transmit and receive a scalability data rate on the multichann... | 07/10/2007 |
| 7233198 | Phase corrected miller compensation of chopper and nested chopper amplifiers A circuit architecture (200) for implementation of compensation based on Miller capacitors in multi-stage chopped amplifiers includes insertion of an additional chopper (206) in the compensation feedback (118, 120) pathway. Such compensation is ... | 06/19/2007 |
| 6944163 | 10 Gigabit ethernet mappings for a common LAN/WAN PMD interface with a simple universal physical medium dependent interface An Ethernet mapping enables high speed Ethernet data streams having a data rate of 10 Gb/s to be transported across a synchronous packet switched network fabric having a standard SONET OC-192 line rate of 9.953280 Gbaud. The 10 Gb/s Ethernet data stream is compresse... | 09/13/2005 |
| 6434201 | Simply-constructed digital radio communication system capable of changing transmission capacity mode In a digital radio communication system for wireless bidirectional communication between a master station and a slave station, each of the master station and the slave station includes a antenna, a subscriber interface, a first signal processing circuit f... | 08/13/2002 |
| 6041080 | Signal processing system and method for digitally mixing a plurality of analog input signals A signal processing system receives and mixes a plurality of analog input signals having a maximum frequency. Each analog input signal is connected to an input of a modulator producing a high frequency oversampled digital signal. Each high frequency overs... | 03/21/2000 |
| 5457714 | Software controlled adaptive delta modulator A delta modulator automatically adjusting the slewing rate is disclosed. In the absence of a transition in the output data of a delta modulator, a parameter used for the integrator of the delta modulator is increased. When the comparator of the modulator ... | 10/10/1995 |
| 5155743 | Digital data converter A decoder for recovering an analog signal from its digital representation produced by an encoder employing adaptive-delta-modulation first decodes audio bit-stream (17) in the digital domain with digital delta demodulation (15), to a pulse-code-modulation... | 10/13/1992 |
| 5030954 | Double rate oversampled interpolative modulators for analog-to-digital conversion A circuit transformation that doubles the effective sampling rate of any switched capacitor oversampled, interpolative modulator, regardless of its order, employs, in each integrator of the modulator, a second input capacitor and switches that operate on ... | 07/09/1991 |
| 4994805 | Delta sigma modulator arrangements compensated by chopper stabilization A delta sigma modulator arrangement in which non-ideal characteristics such as noise or offsets in amplifiers or other circuits of the circuits of the arrangement are compensated by chopper stabilisation.... | 02/19/1991 |
| 4994804 | Double integration delta-sigma modulation analog to digital converter A delta-sigma modulation analog to digital converter for converting an analog input signal to a digital output signal. The converter includes an input circuit for receiving the analog input signal, a clock generator for generating a very high frequency cl... | 02/19/1991 |
| 4722002 | Method and apparatus for encoding/decoding image signal The apparatus has encoder and decoder units. The encoder unit is arranged such that a pulse sequence for minimizing the difference between an input image signal and a synthesized signal obtained by supplying the pulse sequence to a transmitting synthesizi... | 01/26/1988 |
| 4716903 | Storage in a pacemaker memory An implantable pacemaker which stores in memory the representation of an ECG signal by compressing the data. Whenever the input signal changes by a threshold amount from the last time data was recorded, a representation of the time interval which has elap... | 01/05/1988 |
| 4542354 | Delta-sigma pulse modulator with offset compensation A modulator is provided for converting an analog input to an output pulse train having an average amplitude proportional to the input signal. The modulator circuit employs delta-minus-sigma modulation in which the output pulse train controls the selection... | 09/17/1985 |
| 4305050 | Circuitry for generating reference signal for delta encoding systems In an electrical system of the type in which a digitally encoded signal is determined at least in part by the difference between a present value of an input signal and a reference signal representative of a past value of the input signal, improved circuit... | 12/08/1981 |
| 4071825 | Adaptive delta modulation system A delta modulation system for generating a digital output signal representative of an analog input signal. The analog input signal is periodically compared to an analog feedback signal to generate the digital output signal. The analog feedback signal is g... | 01/31/1978 |
| 3980953 | Delta modulation system employing digital frame averaging A delta modulator produces a digital bit stream from an input analog waveform and applies same to bit-averaging circuitry dividing the bit stream into time-frame intervals and computing the average slope per frame. Each average time-frame slope value is t... | 09/14/1976 |
