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:
Jan. 31, 2012
Filed:
Jul. 31, 2006
Takayuki Takeda, Kanagawa, JP;
Takayuki Takeda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A transmitting/receiving system includes a transmitting apparatus that transmits, to another apparatus, first encrypted data obtained by encrypting stream data including consecutive unit data items in accordance with a first encryption technique prescribing that, when the stream data is encrypted for each item, keys used for encrypting the items are updated, and a receiving apparatus that receives and decrypts the first data from the transmitting apparatus in accordance with a first decryption technique. The transmitting apparatus includes an encryptor that outputs second encrypted data obtained by generating data including a predetermined number of keys, and encrypting the data in accordance with a second encryption technique, a transmitter that transmits the second data from the encryptor to the receiving apparatus. The receiving apparatus includes a key receiver that receives the second data from the transmitter, and a key decryptor that decrypts the second data in accordance with a second decryption technique.