Panasonic Corporation

Hidekazu Matsunobu

Nobutaka Kodama

Yuji Igata

Masahiro Maki

Akihiro Yamashita

Fumio Ichihara

Toshiyuki Wakisaka

Mutsuhiko Oishi

Ryota Yukizane

Tsunehiro Hanada

Kazuaki Kusune

A first communication apparatustransmits a pilot signal which was generated by a pilot signal generation section, at predetermined timing, and detects an unbalance component of a transmission lineat the time of pilot signal transmission in an unbalance component detection section, and controls a transmission signal in such a manner that an unbalance component is reduced by a transmission control sectionon the basis of the detected unbalance component.

Line status detection apparatus, communication apparatus, and line status detection method

A receiving level control apparatus includes an amplifier to receive a signal and to amplify the signal based on a gain control signal, a memory to store an accumulated level of the amplified signal at every sampling period, and a gain control section to judge whether or not the accumulated level, which has been accumulated from a first time instant, exceeds a first reference value at a predetermined timing, and to control the gain control signal for the amplifier in response to a length of a time period defined from the first time instant up to a second time instant in a case that the accumulated level exceeds the first reference value, the second time instant defined as a time instant when the gain control section judges that the accumulated level exceeds the first reference value.

Receiving level control apparatus and receiver

Growing community of inventors

Fukuoka, Japan

Hidekazu Matsunobu