Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2001-02-21
2004-10-26
Trinh, Sonny (Department: 2685)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S556100, C455S575100, C455S090300, C455S550100
Reexamination Certificate
active
06810274
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a battery pack for supplying an electronic apparatus with electric power, and a wireless telephone set which is supplied with electric power by the battery pack mounted thereto.
2. Description of Related Art
Portable electronic apparatuses, such as a wireless telephone set, a personal digital assistance (PDA) and a digital still camera, have a battery pack mounted thereto, and those portable electronic apparatuses are supplied with electric power by the battery pack. Recently, such portable electronic apparatuses have a removable IC card or memory card having at least semiconductor memories to store character data, image data and audio data.
When the battery packs are removed abruptly from the portable electronic apparatuses with their IC cards contained therein before power switches are turned off, data stored in the semiconductor memories of the IC cards are sometimes broken or lost.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to overcome the above-mentioned drawbacks by providing a battery pack for supplying an electronic apparatus with electric power which can protect data stored in the semiconductor memories of the IC card, and a wireless telephone set which is supplied with electric power by the battery pack.
According to the present invention, there is provided a portable telephone apparatus including a portable telephone unit and a battery pack mounted thereto,
wherein the battery pack including:
a battery for supplying the portable telephone unit and components in the battery pack with electric power;
an opening from which a semiconductor memory is removably inserted; and
a memory controller for controlling the operation of reading data stored in the semiconductor memory inserted from the opening in accordance with a control signal from the portable telephone unit,
and wherein the portable telephone unit including:
means for reproducing the data read out from the semiconductor memory.
According to the present invention, there is provided a battery pack for supplying a portable telephone unit of a portable telephone apparatus with electric power, which is mounted to the portable telephone unit, the battery pack including:
a battery for supplying the portable telephone unit and components in the battery pack with electric power;
an opening from which a semiconductor memory is removably inserted;
a memory controller for controlling the operation of reading audio data stored in the semiconductor memory inserted from the opening in accordance with a control signal from the portable telephone unit; and
means for reproducing the audio data read out from the semiconductor memory.
According to the present invention, since the battery pack has the semiconductor memory, the battery pack and the wireless telephone set can protect data stored in the semiconductor memory.
Still more, since the battery pack includes a music playback device, the portable telephone unit becomes independent of the compression standards, such as the MPEG 3, ATRAC, etc., which makes the portable telephone unit compatible with various standards.
Furthermore, since the battery pack includes the music playback device, codes peculiar to the wireless telephone set used for managing copyrights and securities can be separated easily. Thus, the codes do not have to be copied, and the codes are not undesirably read out to outside.
Furthermore, since the battery pack includes the music playback device, the wireless telephone set itself can be reduced in size.
These objects and other objects, features and advantages of the present intention will become more apparent from the following detailed description of the preferred embodiments of the present invention when taken in conjunction with the accompanying drawings.
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Sawada Takeshi
Tanaka Tohru
Maioli Jay H.
Sony Corporation
Trinh Sonny
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