The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2002
Filed:
Sep. 18, 2000
Portable information processing terminal device with low power consumption and large memory capacity
Tetsuro Kimura, Tokyo, JP;
Tetsuro Muranaga, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A portable information processing terminal device, realizing both a low power consumption and a large memory capacity, is formed by a first memory for storing files, a second memory for storing a plurality of files, the second memory having a larger memory capacity and a higher power consumption than the first memory, a processing unit configured to read and process files stored in the first memory, and to access the second memory when a desired file does not exist in the first memory, a judgement unit configured to judge whether there is a possibility of external power supply or not, a prohibition unit configured to prohibit activation of the second memory when the judging unit judges that there is no possibility of external power supply, and a control unit configured to select prescribed files that are expected to have probabilities for being accessed during a period in which activation of the second memory is prohibited by the prohibition unit, and to store the prescribed files into the first memory in advance.