A reception circuit includes a receiver, a noise boosting circuit and a buffer. The receiver generates a positive amplification signal and a negative amplification signal by amplifying a first input signal and a second input signal. The noise boosting circuit adjusts voltage levels of the positive amplification signal and the negative amplification signal based on the first input signal and the second input signal. The buffer generates an output signal by amplifying the positive amplification signal and the negative amplification signal.

A reception circuit includes a receiver, a noise boosting circuit and a buffer. The receiver generates a positive amplification signal and a negative amplification signal by amplifying a first input signal and a second input signal. The noise boosting circuit adjusts voltage levels of the positive amplification signal and the negative amplification signal based on the first input signal and the second input signal. The buffer generates an output signal by amplifying the positive amplification signal and the negative amplification signal.

A receiver and a program capable of, when they have received a pulse noise together with a reception signal, improving quality of the reception signal are provided. A receiver according to the present disclosure includes a received-signal amplification circuit configured to amplify a monitoring received signal branched from a received signal, a gain control circuit configured to set a gain setting value for an AGC operation in the received-signal amplification circuit, the AGC operation being an operation for making an amplitude of an amplified monitoring received signal fall within a predetermined range, a pulse detection circuit configured to monitor a change in the gain setting value and detect whether or not a pulse noise is contained in the received signal based on whether or not the change in the gain setting value meets a predetermined condition.

An acoustic wave device includes first and second electrode fingers provided on a first principal surface of a piezoelectric body. In a case that a portion where the first electrode finger and the second electrode finger overlap with each other when they are viewed from a first direction connecting the first and second end surfaces is an intersecting portion, and a distance between the first end surface and the second end surface in the piezoelectric body is a width of the piezoelectric body, a different width portion having a width different from the width of the piezoelectric body at a central portion of the intersecting portion in a second direction is provided in a region where the first end surface and the second end surface oppose each other.

A device for generating a frequency-up-converted wideband signal, the device including a periodic address counter connected to a waveform memory to generate two digital signals, two digital to analog converters configured to convert the two digital signals to two analog signals, two filters connected to the two digital to analog converters configured to anti-alias filter the two analog signals and a quadrature modulator connected to the two filters and to an oscillator for generating the frequency-up-converted wideband signal. A method for generating a frequency-up-converted wideband signal is also provided.

A transmitter is configured to generate a DOCSIS signal for transmission onto a frequency-selective coaxial cable. The transmitter comprises a first reverse tilt filter circuit, a digital predistortion circuit, a forward tilt filter, a wideband equalizer, a second reverse tilt filter, and a power amplifier. The responses of the tilt filters may be set based on the frequency response of the frequency-selective coaxial cable to which the transmitter is intended to be coupled. The predistortion circuit may compensate for distortion introduced by circuitry of the transmitter. The equalizer circuit may be operable to compensate for undesired linear response of other circuitry of the transmitter.

A system comprises an antenna, a port converting device, an information transmission device, a shield case, and a reference voltage end; wherein the antenna, the port converting device, and the information transmission device are connected sequentially, and the information transmission device is disposed within the shield case, and both the shield case and the port converting device is connected with the reference voltage end; the antenna is configured for a conversion between a radio frequency signal and a single-ended signal; the port converting device is configured for a conversion between the single-ended signal and target differential mode signals; the information transmission device is configured to transmit and process the target differential mode signals; and parameters of components in the port converting device is determined according to a preset communication frequency and a voltage amplitude and phase of a differential mode signal.

Methods and systems are disclosed for MIMO power line communication signal coupling combined with zero cross detector analog front end and may include a circuit for powerline communication including a coupling circuit and zero cross detector, where both are coupled to an input transformer that receives an alternating current (AC) power signal and radio frequency (RF) signals from line and neutral power lines via input capacitors. The coupling circuit may include a plurality of powerline communication receivers, a that receives a first RF signal via a secondary coil of the input transformer and a second that receives a second RF signal via a center terminal of a capacitor pair coupled to primary coils of the input transformer. The second receiver may comprise a second transformer. A center tap of the second transformer may be coupled to ground via an inductor. A third receiver may generate a third RF signal via the inductor.

A tower top device and a passive intermodulation cancellation method are provided. The tower top device is connected between an antenna and a radio remote unit (RRU) to perform passive intermodulation (PIM) cancellation. The tower top device includes: a model processing circuit configured to generate a cancellation signal based on an input digital transmit signal and a non-linear model, where the non-linear model is used to represent a non-linear relationship between a source signal generating PIM interference and a PIM interference signal; and a cancellation circuit connected to the model processing circuit and configured to: obtain the cancellation signal generated by the model processing circuit, and perform, based on the cancellation signal, PIM cancellation on a digital received signal including an actual PIM interference signal.

A reception circuit includes a receiver, a noise boosting circuit and a buffer. The receiver generates a positive amplification signal and a negative amplification signal by amplifying a first input signal and a second input signal. The noise boosting circuit adjusts voltage levels of the positive amplification signal and the negative amplification signal based on the first input signal and the second input signal. The buffer generates an output signal by amplifying the positive amplification signal and the negative amplification signal.