摘要:
A transmitter modulates for each symbol period a plurality of carriers that include a carrier group that is consisted of a plurality of prescribed carriers, and repeatedly transmits control information in cycles by using the carrier group. The transmitter transmits multiple-bit binary data of the control information in each symbol period, thereby transmitting the control information once in each of the cycles that includes at least one symbol period. The transmitter controls the transmission unit to switch, within the carrier group, for each of the cycles, carriers of bits of the control information, according to a prescribed rule.
摘要:
A TFD (21) includes: a glass substrate (10); a polysilicon layer (12a) formed on the glass substrate (10), and including a p-type semiconductor region (12ap) and an n-type semiconductor region (12an) which are both formed in a same plane and doped with impurity ions; and an insulating film (13) provided to cover the polysilicon layer (12a). In at least one of the p-type semiconductor region (12ap) or the n-type semiconductor region (12an), the concentration of the impurity ions in a multilayer of the polysilicon layer (12a) and the insulating film (13) along the thickness of the multilayer reaches a peak concentration in the insulating film (13) or in a portion of the polysilicon layer (12a) located between the midpoint of the thickness of the polysilicon layer (12a) and the insulating film (13).
摘要:
A radio communication device that, even if it is interfered by a radio transmission station other than a radio transmission station with which it intends to communicate, estimates a signal transmitted from the intended radio transmission station by taking into account the influence of the interference, by obtaining an estimator of “s” that denotes a column vector representing a signal transmitted from the radio transmission station, in accordance with a following expression: s=RssHH(HRssHH+Ruu)−1r, where “Rss” denotes a covariance matrix of the column vector “s”, “r” denotes a column vector representing the signal received by the signal receiving unit, “H” denotes a matrix being the numerical sequence calculated by the first calculating unit, “Ruu” denotes a covariance matrix being the numerical sequence calculated by the second calculating unit, “H” denotes a complex conjugate transposition, and “−1” denotes an inverse matrix.
摘要:
SP signals to be transmitted from a first transmitting antenna 11 are arranged in the same pattern as SP signals to be transmitted from a second transmitting antenna 12. The SP signals to be transmitted from the second transmitting antenna 12 in one symbol are generated, such that the polarity of the SP signals are alternately inverted and non-inverted with respect to the SP signals to be transmitted from the first transmitting antenna 11 in the same symbol. Thus, in the direction that the symbol number is incremented by 1 and the carrier number is incremented by 3, the polarity of SP signals transmitted from the second transmitting antenna 12 are all inverted or non-inverted with respect to the polarity of corresponding SP signals transmitted from the first transmitting antenna 11.
摘要:
A digital broadcast transmission device generates channel combination information associating a plurality of physical channels. The digital broadcast transmission device divides a bit stream into a plurality of bit streams, the bit stream including program-related information having added thereto channel combination information, and transmits the divided bit streams on the plurality of physical channels, respectively. A digital broadcast reception device selects the plurality of physical channels using a plurality of front ends based on the channel combination information, and demodulates broadcast waves received on the plurality of physical channels, respectively. The digital broadcast reception device combines bit streams obtained from the demodulation, and outputs the combined bit stream. The digital broadcast reception device also simultaneously transmits a light bit stream on a different single physical channel, the light bit stream being a bit stream smaller in amount of information than the combined bit stream.
摘要:
A thickening composition characterized in that the thickening composition comprises a xanthan gum in which a potassium salt is attached to a powder surface of the xanthan gum.
摘要:
An object is to generate a pilot signal for estimating transmission characteristic of a transmission channel which is suitable for the OFDM/OQAM multicarrier modulation. A phase reference pilot symbol of which a modulation amplitude is suppressed to zero, and an amplitude reference pilot signal obtained through modulation performed by using an amplitude known to a reception end are transmitted from a transmission end, and the transmission characteristic of the transmission channel is estimated and compensated by using the phase reference pilot signal and the amplitude reference pilot signal at the reception end. Thus, it is possible to simplify frame generation process performed at the transmission end, and reduce transmission power for the phase reference pilot signal.
摘要:
A backlight driving device for driving a backlight that illuminates a display panel is disclosed. The backlight driving device includes: a luminance data input device into which luminance data indicated by a video signal is entered; a drive signal-generating device configured to create a drive signal; a power supply device configured to supply electric power to the backlight according to the drive signal so as to drive the backlight; a video signal decision device configured to make a decision as to whether each value of the luminance data entered into the luminance data input device is smaller than a given value; and a thinning-out device configured to thin out components of the drive signal when the video signal decision device has determined that the value of the luminance data is smaller than the given value and supply the thinned drive signal to the power supply device.
摘要:
In a transmitter, at least one pilot carrier which is modulated with a signal sequence including a reference pilot signal sequence represented by any of amplitude modulation vectors {α, α, −α, −α}, {α, −α, −α, α}, {−α, α, α, −α}, and {−α, −α, α, α} where α represents a real number other than 0, is generated, and an OFDM/OQAM multicarrier modulation signal is transmitted. In a receiver, the OFDM/OQAM multicarrier modulation signal is demodulated, and transmission channel characteristics are estimated and corrected based on two successive demodulation vectors in a time direction which are obtained by demodulating the pilot carrier.