H - Electricity – 04 – K
Patent
H - Electricity
04
K
179/2, 325/3
H04K 1/00 (2006.01) H04K 1/04 (2006.01)
Patent
CA 1092195
ABSTRACT OF THE DISCLOSURE A method of, and apparatus for, enciphering and deciphering audio information which is subdivided into partial blocks along a time axis, the partial blocks being mutually interchangeable according to key information. The incoming analog audio signals are subdivided into a number of frequency bands, each of which is assigned to an information channel. The analog audio signals of each information channel are converted into digital sig- nals which are subdivided into main blocks along the time axis. The main blocks of equal time of each information channel are subdivided into sub- sections of the same magnitude with respect to time and which are inter- changed, in accordance with the key information with sub-sections of the same main block or with sub-sections of a time-equal (i.e. isochronal) main block of another information channel. After the interchange in each infor- mation channel, the digital signals are converted into analog signals and grouping together of the interchanged sub-sections are grouped together into new main blocks, in order to render possible a further processing of the time-equal or isochronal new main blocks of each information channel.
279291
Anstalt Europaische Handelsgesellschaft
Smart & Biggar
LandOfFree
Method and apparatus for enciphering and deciphering audio... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for enciphering and deciphering audio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for enciphering and deciphering audio... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-680255