Scrambling system for audio frequency signals

H - Electricity – 04 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

352/19, 325/3, 3

H04K 1/06 (2006.01)

Patent

CA 1216632

ABSTRACT OF THE DISCLOSURE A scrambling system for an audio frequency signal in which an audio signal is divided into blocks, each block being formed of a plurality of frames, the plurality of frames are rearranged on a timebase in a predetermined order at every block so as to be encoded and the encoded signal is re-arranged on the timebase in an original order so as to be decoded, in which there are provided a first signal processing circuit for inserting a redundant portion into a portion between adjoining frames and timebase- compressing the frames in response to the redundant portions upon encoding, a control signal generating circuit for inserting a control signal other than an audio information into the redundant portions, a control signal detecting circuit for detecting the control signal upon decoding and a second signal processing circuit for removing the redundant portions in synchronism with the detected control signal and timebase-expanding the frames in response to the redundant portions. Therefore, even when the audio signal is trans- mitted through a system in a transmission path having a timebase fluctuation such as a transmission path of a VTR (video tape recorder) and the like the frequency band region of which is restricted, the signal waveform is not distorted and a noise is not mixed therein so that the scrambling communication having high quality and high reliability can be presented.

442753

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Scrambling system for audio frequency signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scrambling system for audio frequency signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scrambling system for audio frequency signals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1282129

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.