Sony Corporation

Other

Kazuhiro Oguchi

Kazukuni Takanohashi

Kazuhisa Funamoto

Yasuhiro Iida

Kenichi Kobayashi

Satoshi Okada

Takashi Yokokawa

Yuichi Hirayama

Osamu Shinya

There may be included: a demodulation section configured to perform, based on a modulated signal transmitted from an associated communication device, amplitude change demodulation and phase change demodulation, and configured to select a demodulated signal demodulated with either one of the amplitude change demodulation and the phase change demodulation; and a modulation section configured to modulate magnetic field generated by the associated communication device.

Communication device, communication system, and communication method

A signal processing device includes: an extraction section configured to extract a signal having a predetermined component from an obtained signal; and a detection section configured to determine a timing of decoding when a modulation part lasting for a first time period and a non-modulation part lasting for a second time period are detected from the signal extracted by the extraction section.

Signal processing device, method of processing signal, and recording medium

Disclosed herein is a signal processing device including: a correlation signal output unit configured to, about a received signal transmitted from another device, calculate a correlation value between the received signal and a pattern of a waveform of a known signal and output the calculated correlation value as a correlation signal in a time corresponding to one symbol; a known signal determiner configured to determine, based on the correlation signal, whether or not the received signal is modulated by the known signal in a first interval defined when the time corresponding to one symbol is divided into a plurality of intervals; and an identifier configured to identify a series of the symbol based on a result of the determination.

Signal processing device and method

Disclosed herein is a signal processing apparatus including a plurality of frame head detection sections configured to determine whether a frame head complying with any one of a plurality of different communication methods is detected by comparing the waveform of a signal sent from an external apparatus with a plurality of predetermined different symbol patterns; a communication method selection section configured to select the communication method for communicating with the external apparatus based on results of the determination by the frame head detection sections and on the priority of each of the plurality of communication methods; and a priority changing section configured such that if a second communication method different from an initially selected first communication method is selected anew, then the priority changing section changes the priority of each of the plurality of communication methods based on the newly selected second communication method.

Apparatus and method for selection of communication method for communicating with an external apparatus

Disclosed herein is a demodulation apparatus including: an operation determination block configured to determine whether the demodulation apparatus operates as part of either a first device or a second device with which the demodulation apparatus communicates, the first device being configured to ASK-modulate and transmit data, the second device being configured to load-modulate and transmit data; and first and second demodulation control blocks.

Demodulation apparatus, demodulation method, and electronic device

A decoding apparatus includes a memory and a receiving unit and is adapted to decode data in units of codewords each including a parity part. The memory has a storage capacity capable of storing at least data with a length equal to the length of one codeword. The receiving unit receives, as received values, elements of a codeword in a bit-interleaved form, performs bit deinterleaving and parity permutating on the received values, and stores the resultant received values in the memory.

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Tokyo, Japan

Kazuhiro Oguchi