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:
Dec. 18, 2007
Filed:
Feb. 03, 2003
Yasuji Ota, Kawasaki, JP;
Masanao Suzuki, Kawasaki, JP;
Yoshiteru Tsuchinaga, Fukuoka, JP;
Masakiyo Tanaka, Kawasaki, JP;
Shigeru Sasaki, Kawasaki, JP;
Yasuji Ota, Kawasaki, JP;
Masanao Suzuki, Kawasaki, JP;
Yoshiteru Tsuchinaga, Fukuoka, JP;
Masakiyo Tanaka, Kawasaki, JP;
Shigeru Sasaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
When a voice encoding apparatus embeds any data in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus embeds optional data in the encoded voice code by replacing a second element code with the optional data. When a voice decoding apparatus extracts data that has been embedded in encoded voice code, the apparatus determines whether data embedding condition is satisfied using a first element code from among element codes constituting the encoded voice code, and a threshold value. If the data embedding condition is satisfied, the apparatus determines that optional data has been embedded in the second element code portion of the encoded voice code and extracts this embedded data.