Fujitsu Corporation

Other

Ffc Limited

Hiroshi Okubo

Takashi Saito

Tadayoshi Katoh

Hideaki Yokoyama

Kazuhisa Matsushima

Shunsuke Fueki

Andrzej Radecki

Takayuki Nagasawa

Toshiyuki Teramoto

Shinji Yajima

Takeshi Kikuchi

Masayoshi Isobe

A power supply circuit for supplying power to a load includes an antenna which receives electric power, a rectifier coupled to the antenna and configured to convert an alternating voltage supplied from the antenna into a direct-current voltage, a voltage step-down circuit which steps down the direct-current voltage to generate an output voltage for provision to the load, a regulator which controls a resistance connected between the output voltage and a ground voltage in parallel with the load, thereby controlling a voltage level of the output voltage.

Power supply circuit that is stable against sudden load change

A digital audio reproducing apparatus including a receiver receiving modulated data, a demodulator demodulating the modulated data received by the receiver, an audio decoder decoding, in a unit of a frame, digital audio information contained in the modulated data demodulated by the demodulator, and an audibility corrector for effecting audibility correction on failing digital audio information contained in a frame that failed to be decoded, when the audio decoder fails to decode the digital audio information.

Digital audio reproducing apparatus

The present system comprises a transmitting apparatus for digital broadcast which includes an original signal generating section, delaying section, information amount reducing section, and transmitting section. A receiving and reproducing apparatus for digital broadcast includes a signal reception front stage unit for receiving a high quality signal and a low quality signal, mode determining section and reproducing section composed of a delaying section and selecting section for selectively reproducing the high quality signal and the low quality signal. By employing time diversity, the transmitting apparatus sends the low quality signal having a smaller bandwidth and the high quality signal so that the low quality signal has a preceding time lag relative to the high quality signal, and the receiving apparatus reproduces broadcasting programs. Utilizing the frequency band for broadcast effectively, many broadcasting programs can be increased, and the investment for providing a gap filler can be minimized.

Method, system and apparatus for transmitting, receiving, and reproducing a digital broadcast signal

Growing community of inventors

Hino, Japan

Hiroshi Okubo