Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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 |
| 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 |
| 7298423 | Time based digital FM demodulator A time-based, digital FM demodulator circuit receives a stream of digital samples corresponding to an analog FM waveform. The samples are provided to a zero crossing detector, which allows a counter to determine a number of clock cycles between zero crossings. The r... | 11/20/2007 |
| 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 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 7082171 | Phase shifting applications of universal frequency translation A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT modul... | 07/25/2006 |
| 7072390 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 07/04/2006 |
| 7068739 | Method and system for providing a binary demodulator One embodiment of the present invention enables a low performance and low cost microprocessor (or microcontroller) to perform binary demodulation of analog communication signals. Within the present embodiment, three techniques may be utilized to enable this function... | 06/27/2006 |
| 7054296 | Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, ... | 05/30/2006 |
| 7054778 | Method and device for processing analogue output signals from capacitive sensors An analogue output signal of a sensor which comprises a carrier signal with a carrier frequency ωC which is modulated by a measurement size is sampled with a sampling frequency ωA to receive a sampled sensor output signal. The frequency ω | 05/30/2006 |
| 7039372 | Method and system for frequency up-conversion with modulation embodiments A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In ... | 05/02/2006 |
| 7027786 | Carrier and clock recovery using universal frequency translation Coherent detection of a received EM signal using universal frequency translation (UFT) is described herein. The received EM signal is sampled according to a sub-harmonic LO signal, where the LO signal is in frequency and phase coherence with the received EM signal. ... | 04/11/2006 |
| 7010286 | Apparatus, system, and method for down-converting and up-converting electromagnetic signals Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive o... | 03/07/2006 |
| 7006806 | System and method for SAP FM demodulation Certain embodiments of the present invention provides a system and method for SAP FM demodulation. The system includes a bandpass filter for isolating the SAP signal, a Hilbert filter to produce a copy of the SAP signal phase shifted by 90 degrees, an FM demodulator... | 02/28/2006 |
| 7006805 | Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service A receiver having multi-mode and multi-band functionality and capabilities is described herein. The receiver is capable of selectively operating over a plurality of bands and channels. The receiver operates in a plurality of modes, including but not limited to a sin... | 02/28/2006 |
| 6947508 | Method and apparatus for estimating the frequency and/or phase of a digital signal An apparatus and method for estimating a frequency and/or a phase of a digital input signal by determining phase values of the input signal. The phase values are then added over a predetermined summation length N/B. The sampling rate of the added-up phase values are... | 09/20/2005 |
| 6933776 | Signal demodulating method of a two-phase frequency shift keying (FSK) digital demodulator There is provided a signal demodulating method of a two-phase frequency shift keying (FSK) digital demodulator. The method utilizes at least a detect circuit respectively detecting and collecting a positive edge signal and a negative edge signal of an intermediate f... | 08/23/2005 |
| 6922555 | Phase interpolation receiver for angle modulated RF signals A phase interpolation receiver for receiving angle modulated radio frequency signals. The receiver comprises mixers for down-converting the received angle modulated signal to lower frequency signals, limiters, interpolation filters, and a demodulator. The mixers dow... | 07/26/2005 |
| 6903603 | Phase detection circuit and receiver A quadrant deciding section decides the quadrant to which a received signal belongs based on a baseband signal. A rotation projector rotates the received signal and projects the rotated signal to a straight line that intersects orthogonally at the origin with a stra... | 06/07/2005 |
| 6646500 | Integrated circuit having an FM demodulator and method therefor A digital FM demodulator employs a baseband phase lock loop (BBPLL), which is particularly effective for long range reception, for combining and demodulating a pair of signals represented by the mathematical expression A(t)ejθ(t) to result in ... | 11/11/2003 |
| 6172557 | Time counting circuit, pulse converting circuit and FM demodulating circuit Provided is a time counting circuit which can measure the time taken from the rising edge to the falling edge of a pulse signal and the time from the falling edge to the rising edge thereof. The time counting circuit according to the present invention com... | 01/09/2001 |
| 6121829 | Frequency demodulator A frequency demodulator of the present invention includes: an amplification section for receiving a frequency-modulated signal and amplifying the frequency-modulated signal based on a gain so as to produce a digital signal having a predetermined level and... | 09/19/2000 |
| 6081155 | Digital quadrature discriminator for demodulation of frequency-modulated information A circuit is designed with a delay circuit (102) coupled to receive a frequency-modulated data signal (100) at a delay input terminal. The delay circuit produces the data signal (103) after a predetermined delay at a delay output terminal. An exclusive OR... | 06/27/2000 |
| 6072848 | Method and apparatus for constructing a digital phase differentiator incorporating a dynamic decrement counter A method and apparatus for constructing a digital phase differentiator incorporating a dynamic decrement counter (30). A limited signal is sampled at a fixed sampling rate. A fixed rate for an intermediate frequency is obtained. The fixed sampling rate is... | 06/06/2000 |
| 6035002 | Digital super-regenerative detector RF receiver A digital super-regenerative receiver is provided having an analog RF detector and a regenerative oscillator. The output of the RF detector is used to generate a digital signal from which the oscillator bias is adjusted, in order to maintain the oscillato... | 03/07/2000 |
| 5982821 | Frequency discriminator and method and receiver incorporating same Apparatus and method for digital frequency discrimination are provided that only require one sample per data symbol (e.g. one bit for BPSK or 2 bits for QPSK). This is accomplished by determining the difference between the carrier phase error on successiv... | 11/09/1999 |
| 5942937 | Signal detection circuit using a plurality of delay stages with edge detection logic A signal detection circuit employs a delay line with edge detection logic for capturing and buffering timing information about an input signal. A plurality of comparators for comparing the input signal to different reference potentials capture amplitude i... | 08/24/1999 |
| 5910752 | Frequency demodulator with resampled output An receiver receives, amplifies, filters, and downconverts an RF signal to obtain an FM signal. The FM signal is then limited by a limiter and sampled by an ADC. The FM samples from the ADC are provided to an edge detector which detects transitions in the... | 06/08/1999 |
| 5903187 | Monolithically integrable frequency demodulator device Frequency modulated signals are demodulated through a limiter circuit that chops the signal to give pulses whose occurrence frequency is proportional to the instant frequency of the received signal. The invention is devoted to a new processing of those pu... | 05/11/1999 |
| 5850161 | Digital FM demodulator using pulse generators A frequency modulation (FM) signal demodulating circuit having a simple structure using general digital devices is provided. The FM signal demodulating circuit according to the present invention includes a first pulse generator for generating a pulse sign... | 12/15/1998 |
| 5818881 | Digital frequency demodulator A digital frequency demodulator includes a first counter and a second counter measuring the instantaneous and mean values of the period of a frequency modulated signal. A comparator compares the values measured and creates a binary signal of the same freq... | 10/06/1998 |
| 5808510 | Demodulator for the demodulation of a frequency-modulated signal Radio receivers for frequency-modulated signals and more particularly, in such receivers, to a device for the demodulation of a signal modulated at intermediate frequency fi. The signal FM that is frequency modulated around a frequen... | 09/15/1998 |
| 5703527 | Frequency modulated signal demodulator circuit and communication terminal equipment A frequency modulated signal demodulator circuit wherein an in-phase component (I) and an orthogonal component (Q) of a frequency modulated signal output from an orthogonal detector circuit are respectively delayed by one sampling time. The result (I.mult... | 12/30/1997 |
| 5614862 | Digital demodulator for a frequency modulated signal and an amplitude modulated signal A DMUX 11 outputs data in a digital FM signal in a circulation to produce signals S1 to S4. An MUX 14 alternately outputs inverted signals of the signals S1 and S3, obtaining a signal Si.sub.(k). An MUX 15 alternately outputs inverted signals of the signa... | 03/25/1997 |
| 5517689 | Phase detecting method and phase detector and FM receiver using phase detecting method A phase detection system in which an original modulation signal is detected from a first complex baseband signal obtained through orthogonal demodulation of an FM signal and output, a second complex baseband signal having cosine and sine components of a p... | 05/14/1996 |
| 5500627 | Precision duty cycle phase lock loop An up/down counter within a phase locked loop is gated to count high frequency clock pulses during the first cycle of the input signal. Upon detection of a transition in the input signal indicating the end of the first cycle, the direction of the count is... | 03/19/1996 |
| 5459432 | Use of a chopper and a sigma-delta modulator for downconverting and digitizing an analog signal including information modulated by a carrier To demodulate an analog signal having information modulated by a carrier, the analog signal is chopped by a chopper, the chopped signal is digitized by a sigma-delta analog-to-digital converter to produce a series of digital samples at a sampling frequenc... | 10/17/1995 |
| 5448202 | Sigma-delta FM demodulator Digital frequency demodulation is accomplished by monitoring similar transitions in an FM radio signal to determine frequency. Time intervals between similar transitions in the FM signal are established by selecting anticipated transition times and accumu... | 09/05/1995 |
| 5444416 | Digital FM demodulation apparatus demodulating sampled digital FM modulated wave The digital FM demodulation apparatus includes a sampling unit, a frequency specifying unit, and a demodulated value specifying unit. The sampling unit samples an FM modulated wave at predetermined intervals. The frequency specifying unit specifies a freq... | 08/22/1995 |
| 5345188 | Sigma-delta digital FM demodulator Digital frequency demodulation is accomplished by monitoring similar transitions in an FM radio signal to determine frequency. Time intervals between similar transitions in the FM signal are established by selecting anticipated transition times and accumu... | 09/06/1994 |
