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:
Apr. 10, 2012
Filed:
Dec. 29, 2004
Christopher C. Yu, Irvine, CA (US);
Takeshi Kubo, Kanagawa-ken, JP;
Ryogo Kanatani, Tokyo, JP;
Microsoft Corporation, Redmond, WA (US);
Abstract
A terminal and a method for exchanging electronic business cards that can guarantee privacy and guarantee complete and consistent communications to the user are provided. The terminal for exchanging electronic business cards with a device connected via a communications network stores the first public key and the first secret key, the first electronic certificate that includes the first public key and components of an electronic business card. The terminal prepares a first electronic business card from the components of an electronic business card that have been read from the memory, transmits the first electronic business card, together with the first electronic certificate that has been read from the memory, receives data encrypted by using the first public key, and decodes the encrypted data that has been received by using the first secret key that has been read from the memory.