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:
Jun. 11, 2002
Filed:
May. 24, 2000
Yukio Ichikawa, Kanagawa, JP;
Akifumi Miyano, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
When a mobile terminal transmits information to an information service centre, the terminal stores positional data of plural points detected by a positional data detector such as a GPS satellite into a memory. The mobile terminal transmits an instant status data, positional data and the terminal ID when an emergency such as an accident, sudden illness occurs. At this time, an appropriate data compression is conducted responsive to a travelling status, such as using relative information, a data-(non-) existing-flag, and a number of points, so that the data volume to be transmitted can be reduced. As a result, the accuracy of positional data is maintained and yet the data transmission time is shortened.