The present technology relates to a signal processing device, a signal processing method, and a program capable of reducing influence of crosstalk.

Provided are: a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N−1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. The present technology can be applied to a reception device that receives a signal transmitted in multiple phases and via multiple lines.

The present technology relates to a signal processing device, a signal processing method, and a program capable of reducing influence of crosstalk.

Provided are: a plurality of comparators; a delay unit adapted to delay output of each of the plurality of comparators; and a subtractor adapted to subtract, from a supplied signal, a signal from the delay unit. The signal processing device processes signals transmitted in N phases and includes (N−1) or more comparators. Each of the plurality of comparators has a different threshold value set and compares a received signal with the threshold value, and in a case where the signal transitions between a plurality of voltage levels, the threshold value is set to a value within adjacent voltage levels. The present technology can be applied to a reception device that receives a signal transmitted in multiple phases and via multiple lines.

The present technology relates to a signal processing device, a signal processing method, and a program that make it possible to suppress deterioration in audio characteristics. The signal processing device includes: a low-pass filter that performs filter processing on a PDM signal; and a PWM conversion unit that performs PWM conversion on a multibit signal obtained by the filter processing and generates a PWM signal. The present technology can be applied to an audio reproduction system.

A system, method and apparatus that includes two or more sensor nodes that obtain sensed data from a structure. A controller receives the sensed data from the sensor nodes, via a network formed by the sensor nodes and the controller. The controller controls functionality of each of the sensor nodes, controls time synchronization among the sensor nodes, detects information collected by the sensor nodes, and communicates, utilizing an M-ary time-reversal based protocol, the detected information using a planar surface of the structure as the transmission medium for elastic waves.

A pre-distortion processing device, a signal transmission system, and a pre-distortion processing method are provided. The pre-distortion processing device comprises a pre-distortion unit, a transmission unit and a coupling unit which are sequentially connected. A feedback path of the coupling unit is connected to the pre-distortion unit. The pre-distortion processing device further comprises a generation unit and a combiner unit. The generation unit is used to generate a non-hopping wideband signal having a bandwidth greater than a bandwidth of a system input signal. A first input terminal of the combiner unit is connected to an output terminal of the generation unit. A second input terminal of the combiner unit is used to receive the system input signal. An output terminal of the combiner unit is connected to an input terminal of the pre-distortion unit.

A pre-distortion processing device, a signal transmission system, and a pre-distortion processing method are provided. The pre-distortion processing device comprises a pre-distortion unit, a transmission unit and a coupling unit which are sequentially connected. A feedback path of the coupling unit is connected to the pre-distortion unit. The pre-distortion processing device further comprises a generation unit and a combiner unit. The generation unit is used to generate a non-hopping wideband signal having a bandwidth greater than a bandwidth of a system input signal. A first input terminal of the combiner unit is connected to an output terminal of the generation unit. A second input terminal of the combiner unit is used to receive the system input signal. An output terminal of the combiner unit is connected to an input terminal of the pre-distortion unit.

A receiver samples an analog, multi-level, pulse-amplitude-modulated signal using a clock-and-data recovery circuit (CDR) that samples the signal against adaptively calibrated symbol-decision thresholds in time with a clock signal that is phased aligned with and locked to the signal. The CDR can erroneously align the clock signal to inter-symbol edges of the signal, a condition called “edge lock,” rather than on the symbols themselves. A transition-type detector senses the edge-lock condition and unlocks the CDR, which can then realign the clock signal, this time on the symbols rather than the inter-symbol edges. The receiver can also respond to the edge-lock condition by kick-starting a shift of symbol-decision threshold that helps the CDR settle more quickly on correct symbol-decision thresholds.

A receiver samples an analog, multi-level, pulse-amplitude-modulated signal using a clock-and-data recovery circuit (CDR) that samples the signal against adaptively calibrated symbol-decision thresholds in time with a clock signal that is phased aligned with and locked to the signal. The CDR can erroneously align the clock signal to inter-symbol edges of the signal, a condition called “edge lock,” rather than on the symbols themselves. A transition-type detector senses the edge-lock condition and unlocks the CDR, which can then realign the clock signal, this time on the symbols rather than the inter-symbol edges. The receiver can also respond to the edge-lock condition by kick-starting a shift of symbol-decision threshold that helps the CDR settle more quickly on correct symbol-decision thresholds.

One aspect of the present invention includes a bi-phase communication receiver system. The system includes an analog-to-digital converter (ADC) configured to sample a bi-phase modulation signal to generate digital samples of the bi-phase modulation signal. The system also includes a bi-phase signal decoder configured to decode the bi-phase modulation signal based on the digital samples. The system further includes a preamble detector comprising a digital filter configured to evaluate the digital samples to generate an output and to detect a preamble of the bi-phase modulation signal for decoding the bi-phase modulation signal based on the output.

A sensor system is configured to communicate at least partially protected sensor data over a communication interface. The sensor system includes a sensor element and a communication interface communicatively coupled to the sensor element. The sensor element is configured to provide sensor data in the digital domain. The communication interface is configured to generate a data package for transmission over the communication interface from the sensor data. The data package includes a data grouping comprising one or more nibbles related to the sensor data. The data package further includes a nibble indicia based on at least a portion of selected nibbles within the data grouping.