Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
1998-03-03
2001-08-28
Yoo, Do Hyun (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S163000, C711S164000, C383S003000, C235S380000, C235S492000, C365S228000, C365S195000, C713S152000, C713S152000
Reexamination Certificate
active
06282612
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to removable memory devices. In particular, the present invention relates to a removable memory device for a portable terminal device that can be removably connected to such a portable terminal device as, e.g., a portable telephone and can store therein ID information, a telephone number list, and so on, etc., inherent in each portable terminal device.
2. Description of the Related Art
Such a portable terminal device as a portable telephone comprises a memory device which stores therein, for example, such a telephone number list as abbreviated dialing numbers or such individual information as ID information inherent in each portable terminal device, entered by a user. When a user wants to exchange the portable terminal device with another due to user's upgrading to a newer device, it is desirable to enable copying of the individual information already stored in the portable terminal device used so far to a new portable terminal device and also to enable use of the new portable terminal device with the same individual information.
Disclosed in Japanese Patent Application Laid-Open Publication No. Hei-4-302245 is a system wherein an information memory device for storing information necessary for operation of a radio telephone set, i.e., operation lock/unlock information, radio telephone participation information, or attached function restriction information, private information (i.e., individual information) such as a telephone number list, as explained in Japanese Patent Application Laid-Open Publication No. Hei-4-302245, is made in the form of an ID card or a chip and the information memory device is arranged to be removably connected to the radio telephone device.
In that system, when it is desired to exchange the radio telephone device with a newer device, by just removing the information memory device from the old radio telephone device and then attaching it to the new radio telephone device, the user can use the new radio telephone device under the same environment (that is, the same individual information) as that of the old radio telephone device.
However, the prior art radio telephone device has a problem that, since anyone can simply remove the information memory device therefrom, when another user removes the information memory device from other's radio telephone device and attaches the information memory device to his or her own radio telephone device, he or she can use it with use of the other's individual information.
SUMMARY OF THE INVENTION
In view of the above, the present invention has been made, and an object of the present invention is to provide a removable memory device for a portable terminal device which, when a user wants to exchange an old portable terminal device with new one and to use the new portable terminal device with individual information used so far, can reliably shift the individual information, can shorten a time necessary for the information shift to a large extent and can prevent easy illegal use of the individual information of the portable terminal device by others.
With the removable memory device for the portable terminal device in accordance with the present invention, when a user wants to exchange an old terminal device with new one, the user is required to protect an individual information already stored in the memory device.
In more detail, the memory device has a controller for judging an input command from a personal computer connected to the portable terminal device when the memory device is disconnected from the portable terminal device and a memory manager for protecting the memory at the time of the removal.
When the removable memory device of the present invention is illegally removed from the portable terminal device, the individual information stored in the memory is erased.
More specifically, the memory device has a controller for detecting a connection with the portable terminal and a memory manager having a function of erasing the memory.
The removable memory device in accordance with the present invention can be removed from the portable terminal device when a remove command (e.g., password) is entered.
For this reason, when wanting to exchange the terminal device, the user can exchange the individual information in a short time and also can prevent the user or a third party from illegally removing the memory device from the terminal device.
REFERENCES:
patent: 4430728 (1984-02-01), Beitel et al.
patent: 5293610 (1994-03-01), Schwarz
patent: 5552776 (1996-09-01), Wade et al.
patent: 5675628 (1997-10-01), Hokkanen
patent: 5748720 (1998-05-01), Loder
patent: 5969333 (1999-10-01), Barthelemy et al.
patent: 62-70096 (1987-03-01), None
patent: 63-191450 (1988-08-01), None
patent: 3-31949 (1991-02-01), None
patent: 4-302245 (1992-10-01), None
patent: 6-216842 (1994-08-01), None
Hayashi Keiichi
Sakajiri Noriyasu
Foley & Lardner
Namazi Melidi
NEC Corporation
Yoo Do Hyun
LandOfFree
Removable memory device for portable terminal device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removable memory device for portable terminal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable memory device for portable terminal device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2464023