Jvc Kenwood Corporation

Hitachi, Ltd.

Tokico, Ltd.

Masayuki Tsuchida

Toshitsugu Suzuki

Toshio Inoue

Yoich Mizutani

A correlation processor derives a correlation value indicating correlation between each of a plurality of reference signals produced by extracting symbols from the synchronization signal of each pattern at a predetermined interval and a received signal. A controller compares the correlation value for each pattern and for each sample derived by the correlation processor with a threshold value and, when at least one correlation value is larger than the threshold value, changes symbols extracted to produce respective reference signals before causing the correlation processor to perform the same process, incorporating the received signal newly acquired. A first selector selects one of the plurality of patterns when all symbols of the synchronization signal have been extracted to produce the reference signals and at least one correlation value is larger than the threshold value.

Synchronization apparatus, synchronization method for synchronizing timing

A signal generator outputs a signal whose frequency is uniquely decided by frequency data set therein. A control section can set first data in the frequency generator as frequency data. The control section can transition among an access unimplementing state, an access stand-by state, and an access implementing state. A signal processing section can set second data in the signal generator as frequency data. The signal processing section can transition between an access allowed state and an access inhibited state. The control section transfers, to the signal processing section, a signal indicative of a desire to transition to the access implementing state and a signal indicative of transition of the control section from the access implementing state. The signal processing section transfers, to the control section, a signal indicative of transition of the signal processing section between the access allowed state and the access inhibited state.

Radio communication device

A compressor comprises a main compressor body of compressing air, an unloader valve device provided at the suction side of the main compressor body, a bleeding pipe provided between the ejection side of the main compressor body and the unloader valve device, and a controlling valve mechanism provided inside the bleeding pipe. The controlling valve mechanism opens by detecting the fluid pressure at the ejection side of the main compressor body. Further, the unloader valve device has a check valve which opens upon-no-load operation and stopping of the operation of the main compressor body, a main valve which opens due to the air released through the bleeding pipe when the controlling valve mechanism opens, a bleeding passage for releasing the released air supplied to the suction side of the check valve, and a relief passage which communicates when the main valve opens, to release the released air to the suction side of the main compressor body.

Growing community of inventors

Yokohama, Japan

Masayuki Tsuchida