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| Number | Title | Issue Date |
| 8120420 | Demodulators Disclosed herein is a demodulator, including: a splitting/matching section for carrying out a matching process of making the amplitude and phase of a first modulated signal match respectively the amplitude and phase of a second modulated signal; and a demodulation s... | 02/21/2012 |
| 7994852 | Electronic circuit and electronic device An electronic circuit includes: a circuit generating first and second balanced differential input signals; a first envelope detection circuit including a first output terminal and first and second input terminals receiving the first and second input signals, respect... | 08/09/2011 |
| 7932775 | Digital demodulation device and related method A digital demodulation device for demodulating an amplitude modulation (AM) signal whose carrier has a first frequency includes: a processing circuit for performing first path digital processing and second path digital processing according to a second frequency and ... | 04/26/2011 |
| 7907006 | Demodulator According to one embodiment, a threshold adjusting apparatus for a clocked comparator, the clocked comparator comparing an input signal with a threshold in accordance with a clock, the threshold adjusting apparatus comprises an output detection module configured to ... | 03/15/2011 |
| 7184487 | Receiver with chopper stabilization and method thereof A receiver (202) has a down-conversion receiver (304) for transforming a signal (201) from a first operating frequency to a second operating frequency that is lower than the first operating frequency, and a receiver filter (308) with chop... | 02/27/2007 |
| 6861901 | Voltage follower circuit A voltage follower comprising a first field-effect transistor (MN1) whose gate forms the input of the voltage follower. Further provided is a second field-effect transistor (MN2) whose drain connected to the gate forms the output of the voltage followe... | 03/01/2005 |
| 6751264 | Receiver and method therefor Embodiments of the present invention relate generally to receivers. One embodiment relates to a digital FM receiver having multiple sensors (e.g. antennas). In one embodiment, the digital receiver includes a baseband unit having a channel processing unit. In one emb... | 06/15/2004 |
| 6590932 | Methods, receiver devices and systems for whitening a signal disturbance in a communication signal Methods, systems and receiver devices are provided which may reduce the average power of a signal disturbance by whitening the signal disturbance. In one aspect, a finite impulse response filter (FIR) is provided which whitens the signal disturbance by fi... | 07/08/2003 |
| 6577182 | Device for demodulating an amplitude-modulated signal A device for demodulating a modulated signal resulting from an amplitude modulation of a sinusoidal signal of frequency fo by a signal of frequency fm according to an unknown modulation rate, comprising a transistor (10) where the ga... | 06/10/2003 |
| 6442218 | Demodulator The present invention relates to a demodulator which receives a signal transmitted via phase modulation or multivalue QAM modulation, and decides transmitted data based on the received signal. The present invention enhances a transmission-line estimate by... | 08/27/2002 |
| 6400778 | DC-offset canceller A DC-offset canceller in a receiver of a communication system using a burst signal including a training sequence with a predetermined periodicity at the head thereof is disclosed. In the canceller, a quadrature demodulator 112 converts the received burst ... | 06/04/2002 |
| 6075409 | Demodulation method and arrangement A method for demodulating a radio frequency signal having a frequency, by oscillating a demodulator at a frequency different from the signal frequency, and measuring a DC offset value at this different frequency, the DC offset value being associated with ... | 06/13/2000 |
| 5535248 | Digital radio communication system A digital radio communication system includes a first demodulator, a second demodulator, a non-break switch, and a switching controller. The first demodulator receives a signal from a first antenna and outputs demodulated data and a line quality degradati... | 07/09/1996 |
| 5442655 | DC cancellation and restoration in receiving apparatus In receiving apparatus of a digital communication system, a received signal burst is demodulated to produce inphase (I) and quadrature (Q) baseband signals which are digitized to provide a set of signal-value pairs for the burst. Each pair consists of an ... | 08/15/1995 |
| 5341106 | Amplitude locked loop circuits There is described an electronic circuit which operates an Amplitude Locked Loop. The circuit comprises a voltage controlled amplifier, a modulus detector and an integrator combined in a feedback loop. An FM signal decoder is also described as are a numbe... | 08/23/1994 |
| 5260974 | Adaptive carrier detection An improvement in an apparatus which uses a carrier detection threshold level for detecting a carrier signal modulated with binary data. The threshold level is dynamically changed and generally seeks a level above the background noise. The threshold level... | 11/09/1993 |
| 5157343 | Electronic arrangement for receiving a modulated carrier signal Electronic receive arrangement for receiving a modulated carrier signal, which arrangement comprises a mixer/demodulator driven with the carrier frequency fc, at least one adder included in a closed signal loop, a low-pass filter, and a pulse shaper const... | 10/20/1992 |
| 5097222 | Digital analog signal demodulator There is disclosed a system and method for demodulating an analog signal using digital conversion of the analog signal. In one embodiment the incoming modulated signal is digitally sampled and a calculation is made as to both the short term and long term ... | 03/17/1992 |
| 4853643 | High signal to noise ratio amplitude detector A low noise floor amplitude detector circuit utilizes a pair of semiconductor diodes connected between a radio frequency signal source and a terminating device that biases the diode at a conduction angle selected for maximum signal to noise ratio in the d... | 08/01/1989 |
| 4617474 | Signal detector A detector is disclosed for receiving an AC signal and for generating a DC output signal indicative of the level of the input signal. The detector includes an amplifier receiving the input signal and a first transistor stage which responds to the amplifie... | 10/14/1986 |
| 4151608 | Circuit arrangement for suppressing magnetic induction noise due to an alternating magnetic field A third conductor is added to a pair of first and second parallel conductors transmitting signals, a part of which conductors are located in an alternating magnetic field. The three conductors are so arranged that the first and third conductors are symmet... | 04/24/1979 |
| 4147986 | AM-FM receiver An AM-FM receiver has switching elements such as field effect transistors inserted in a signal path of the FM circuit. A switch for applying bias voltage to the AM or FM front end circuit is arranged to operate synchronously with switching of the bias vol... | 04/03/1979 |
| 4104594 | Modified A. M. detector Reduction of interference from off-frequency signals in an a.m. receiver is achieved by substituting an average detector for the conventional peak detector employed in such receivers. Conversely, enhancement of off-frequency signal reception is achieved b... | 08/01/1978 |
