Patent ID: 7706251
Filing Date: 2010-04-27
Classification: H04L

Abstract:
1. A signal receiving apparatus, comprising: an antenna receiving an orthogonal frequency division multiplex (OFDM) signal including an OFDM symbol; a section setting unit configured to set a first section to be demodulated in an interval time of the OFDM symbol and a second section that is other than the first section in the interval time of the OFDM symbol, wherein a length of the first section is shorter than the interval time of the OFDM symbol; a first conversion unit configured to frequency-convert the OFDM signal received by the antenna; a second conversion unit configured to analog-to-digital-convert the OFDM signal frequency-converted; a first demodulation unit configured to demodulate the OFDM symbol included in the OFDM signal frequency-converted and analog-to-digital-converted; and a power supply unit configured to supply power to the first and the second conversion units in the first section within the interval time of the OFDM symbol, and not to supply power to a part of the first conversion unit and a part of the second conversion unit in the second section within the interval time of the OFDM symbol.