Sanyo Electric Co., Ltd.

Satoru Nishimura

Masahiro Narita

Niro Imaoka

Hiroyuki Inoue

Takuya Tamagawa

Etsuya Fujisaka

Hisashi Kakiuchi

Nobuhito Okumura

Hiroki Katayama

A seal type storage battery has a battery case which has a sealing assembly for sealing an opened portion of an outer case, which holds an electricity generating element. The sealing assembly includes a pressure-sensitive conductive rubber member in the battery case. The pressure-sensitive conductive rubber member has a resistance that changes continuously depending on a rise of inner pressure in the battery case. A lead connecting with the, pressure-sensitive conductive rubber extends outside of the battery case, and the lead is capable of outputting a pressure detecting signal to outside.

Seal type storage battery

Base station equipment of a digital mobile communication system includes a digital audio signal processing apparatus provided for each message channel for low bit rate coding and decoding a digital audio signal. Each digital audio signal processing apparatus includes a plurality of memories that store a plurality of low bit rate coding/decoding programs differing from each other to comply with different low bit rate coding/decoding methods. A system control circuit determines the low bit rate coding/decoding method of an applied digital signal for controlling a selector to select a memory that stores corresponding low bit rate coding/decoding program. As a result, the digital audio signal processing apparatus performs digital to digital conversion of the applied digital signal according to the low bit rate coding/decoding program stored in the selected memory.

Digital signal processing apparatus and a communication system using the

Base station equipment of a digital mobile communication system includes a digital audio signal processing apparatus provided for each message channel for low bit rate coding and decoding a digital audio signal. Each digital audio signal processing apparatus includes a plurality of memories that store a plurality of low bit rate coding/decoding programs differing from each other to comply with different low bit rate coding/decoding methods. A system control circuit determines the low bit rate coding/decoding method of an applied digital signal for controlling a selector to select a memory that stores the corresponding low bit rate coding/decoding program. As a result, the digital audio signal processing apparatus perform digital to digital conversion of the applied digital signal according to the low bit rate coding/decoding program stored in the selected memory.

Digital signal processing apparatus for converting a digital signal from

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Gifu, Japan

Satoru Nishimura