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:
Oct. 28, 2008
Filed:
Sep. 29, 2003
Shigeyoshi Shima, Minato-ku, JP;
Shigeyoshi Shima, Minato-ku, JP;
NEC Corporation, Tokyo, JP;
Abstract
An electronic data transmission and reception system has n apparatus, a transmitting apparatus, and a receiving apparatus which are connected to a network. The transmitting apparatus transmits first electronic data to a first apparatus. The receiving apparatus receives (n+1)th electronic data from a nth apparatus. A jth (j is an integer satisfying 1≦j≦n) apparatus generates (j+1)th electronic data which comprise jth electronic data with a signature assigned thereto for identifying the jth apparatus, and transmits the (j+1) electronic data to a (j+1)th apparatus. When j is n, an (n+1)th apparatus corresponds to the receiving apparatus. The electronic data transmission and reception system guarantees the first electronic data transmitted by the transmitting apparatus until the first electronic data are received by the receiving apparatus, because of signatures that are generated until the (j+1) electronic data are generated.