Abstract: A pulse receiving circuit which receives a receiving signal from the outside includes: a template pulse generating circuit which generates a first pulse signal and a second pulse signal having phase different from that of the first pulse signal based on a pulse position timing signal; a first multiplying circuit which multiplies the receiving signal by the first pulse signal and outputs a first multiplication signal; a second multiplying circuit which multiplies the receiving signal by the second pulse signal and outputs a second multiplication signal; a first low band pass filtering circuit which extracts low frequency component from frequency components of the first multiplication signal and outputs a first low frequency signal; a second low band pass filtering circuit which extracts low frequency component from frequency components of the second multiplication signal and outputs a second low frequency signal; and an envelope detection circuit which performs envelope calculation by using the first low frequ

Abstract: A semiconductor integrated circuit including: a circuit function section; a bus connected to the circuit function section; an information fetch register for fetching data flowing over the bus; and a radio communicating circuit for wirelessly transmitting the data fetched into the information fetch register.

Abstract: A template pulse generating circuit that generates a template pulse used for detection of a received pulse in pulse communication includes an output mode switching circuit for switching an output mode in accordance with a supplied control signal between a continuous output mode that continuously outputs the template pulses and an intermittent output mode that intermittently outputs the template pulses so that the template pulse is generated in either one of the continuous output mode and the intermittent output mode.

Abstract: A burst control pulse generating circuit which generates a pulse signal used to provide communication includes a timing generating circuit containing a ring oscillation circuit which oscillates a periodic signal based on a burst signal for controlling the ON and OFF condition of the communication to output a plurality of timing signals based on the periodic signal, and a pulse generating logic circuit which generates the pulse signal based on the plural timing signals. The burst control pulse generating circuit generates the pulse signal one or more times when the burst signal is in an ON condition, and stops generation of the pulse signal when the burst signal is in an OFF condition.

Abstract: An apparatus includes a wireless transmitter modulating a carrier wave by transmission data and wirelessly communicating a signal, a wireless receiver mixing the wireless transmitter signal and a carrier wave and receiving the transmission data, a power carrier wave clock generator provided on one of the wireless transmitter and receiver generating a power carrier wave clock, a non-contact power transmitter transmitting power between the wireless transmitter and receiver through electromagnetic induction from the power carrier wave clock, a carrier wave generator mounted on the one of the wireless transmitter or receiver, and generating a carrier wave based on the power carrier wave clock, and a carrier wave reproducer mounted on the other of the wireless transmitter or receiver, and reproducing a carrier wave having the same frequency as the carrier wave based on a clock having the same frequency as the power carrier wave clock.

Abstract: A wireless communication apparatus includes: a transmitter which sends transmitted data while mixing it with a carrier; a receiver which receives the transmitted data sent from the transmitter while mixing it with the carrier; a spreading waveform generator which generates a spread clock resulting from a reference clock for generating the carrier being spread in a PN pattern; a wired sender which, by sending the spread clock by wire, causes both the transmitter and the receiver to share it; and a carrier reproducer which reproduces the carrier based on a result of a phase comparison with the spread clock.

Abstract: An electronic device includes: a radio transmitting part which transmits, by radio, transmission data having a real transmission data portion and a preamble portion mixed, the preamble portion constituted by pseudo noise signals arranged in a given pattern; a radio receiving part near the radio transmitting part, which receives transmission data transmitted from the radio transmitting part and has a phase-adjusting control part, the phase-adjusting control part adjusting a phase of a received local oscillator output based on the pseudo noise signals of the preamble portion; and a wire communication part which communicates a timing of transmitting the preamble portion in the transmission data transmitted by the radio transmitting part to the radio receiving part by wire.

Abstract: A semiconductor integrated circuit including: a circuit function section; a bus connected to the circuit function section; an information fetch register for fetching data flowing over the bus; and a radio communicating circuit for wirelessly transmitting the data fetched into the information fetch register.

Abstract: An electronic apparatus is provided including a wireless communication unit transmitting first category information and a wire communication unit transmitting second category information, and the first and second category information items are transmitted in parallel by the wireless communication unit and the wire communication unit.

Abstract: An electronic device is provided wherein a unit for converting a transmission signal to an electromagnetic wave signal and a unit for receiving the electromagnetic wave signal and restoring the transmission signal are disposed in the same casing, and high-speed large-capacity transfer data are transferred wirelessly.

Abstract: A mapping memory, for use with a transmitter, for mapping a first signal segment and a second signal segment of a packet so that each signal segment has the same average power level. Each signal segment is characterized by a different modulation format. The first signal segment might use BPSK, while the second signal segment might use QAM, having multiple amplitude levels.

Abstract: A two-step automatic-gain-control (AGC) loop for use with a receiver. An AGC amplifier amplifies a received signal. From an output signal from the AGC amplifier, a received-signal-strength-indicator (RSSI) circuit generates an RSSI signal proportional to a received-signal-power level of the received signal. An RSSI-mapping circuit has an RSSI-mapping table. From the RSSI signal, the RSSI-mapping circuit, using the RSSI-mapping table, generates an AGC signal. An AGC-storing circuit stores the AGC signal. The AGC amplifier uses the stored-AGC signal to adjust the AGC gain. A converter circuit converts the output signal from the AGC amplifier to an in-phase component and a quadrature-phase component at a processing frequency. The error circuit determines an error signal from the in-phase component and the quadrature-phase component.