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Portable information recording /reproduction device

A technology for information recording and reproducing devices, which is applied to information recording, magnetic recording, and data recording on magnetic disks, and can solve problems such as sudden voltage drops and remaining battery power drops that are not allowed

Inactive Publication Date: 2008-03-19
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, if the remaining power of the battery drops while the peripheral circuit is continuously turned on, usually no voltage drop is allowed when the hard disk is started
And, it is easy to know by analogy that the device may stop in the event that undesired data may be corrupted

Method used

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  • Portable information recording /reproduction device
  • Portable information recording /reproduction device
  • Portable information recording /reproduction device

Examples

Experimental program
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Embodiment Construction

[0019] Embodiments according to the present invention will be described hereinafter with reference to the accompanying drawings.

[0020] 1 is a schematic block diagram illustrating the main structure of a media player (music / image / video information recording / reproducing apparatus) mainly used in a portable manner, to which an embodiment of the present invention is applied.

[0021] The media player (music / image / video information record / reproducer) of Fig. 1 has: be used to input the operating unit 3 from the user's control signal and input selection instruction signal; File name and movement LCD panel (liquid crystal display) 5 as reproduced image or still image of character information or picture data contained in an audio program; A hard disk drive (hereinafter referred to as HDD) 7 of capacity; a battery (secondary battery) 9 used as a power source when the media player is mainly used in a portable manner; a CPU 11 as a main control unit; and the like. In addition, the HD...

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PUM

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Abstract

According to one embodiment, in order to manage the remaining capacity of a secondary battery of an information recording / reproduction device, the remaining capacity of the secondary battery which supplies electric power to the whole device including a storage medium is monitored in accordance with current supply capacity and in accordance with voltage supply capacity. The remaining capacity is displayed on a display in accordance with the current supply capacity. The whole device is stopped when one of the current supply capacity and the voltage is below a system stop level indicating the electric power required on the startup of the storage medium.

Description

technical field [0001] An embodiment of the present invention relates to a media player (music / image / video information recording / reproducing device) mainly used in a portable manner, and more particularly, to management of voltage by a built-in secondary battery in operation and to Protection of internal cells and data in case of sudden voltage drop. Background technique [0002] Recently, portable information recording / reproducing devices (media players) have been widely used, and these devices are mainly used in a portable manner, and are capable of editing digital data contained in a solid-state memory such as a memory card or a hard disk as needed (anytime, anywhere). Music data or picture data is reproduced. [0003] Music data and picture data can be obtained in various ways, such as by an optical disc in accordance with, for example, the compact disc (CD) standard or the DVD standard, or by public broadcasting provided by using space waves (terrestrial waves) or broa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B19/02H02J7/00
CPCY02E60/12G06F1/3203Y02B60/1278G06F1/3287Y02B60/1282H01M10/48Y02B60/1292Y02D10/00Y02E60/10
Inventor 诸星利弘酒井澄夫松林俊明数田聪绵贯正法
Owner KK TOSHIBA
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