Method for scrambling and/or descrambling FM subcarrier data

Details Method for scrambling and/or descrambling FM subcarrier data Method for scrambling and/or descrambling FM subcarrier data

1996-03-29

1999-06-15

Patel, Harshad

Cryptography

Particular algorithmic function encoding

380 44, H04L 906

Patent

active

059129735

ABSTRACT:
An FM multiple radio broadcasting receiver includes a data group number and data packet number derivation circuit by which a data group number and a data packet number included in a prefix of FM subcarrier data are derived. A first random number generator generates a first random number on the basis of the data group number, the data packet number and scramble key data which is outputted from a scramble key generation circuit, and sets the first random number in a second random number generator as its initial value. Therefore, it is possible to appropriately scramble or descramble with using packet structure of the FM subcarrier data.

REFERENCES:
patent: 4700387 (1987-10-01), Hirata
patent: 5081676 (1992-01-01), Chou et al.
patent: 5113443 (1992-05-01), Brockman
patent: 5151938 (1992-09-01), Griffin, III et al.
patent: 5222137 (1993-06-01), Barrett et al.
patent: 5377266 (1994-12-01), Katta et al.
patent: 5406626 (1995-04-01), Ryan
patent: 5416841 (1995-05-01), Merrick
patent: 5488658 (1996-01-01), Hirashima
patent: 5488661 (1996-01-01), Matsui
patent: 5506902 (1996-04-01), Kubota
patent: 5515437 (1996-05-01), Katta et al.
patent: 5517614 (1996-05-01), Tajima et al.
patent: 5621799 (1997-04-01), Katta et al.
patent: 5636279 (1997-06-01), Katta et al.
patent: 5757825 (1998-05-01), Kimura et al.

Affiliated with

Also associated with

Rating

Method for scrambling and/or descrambling FM subcarrier data 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 for scrambling and/or descrambling FM subcarrier data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for scrambling and/or descrambling FM subcarrier data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-407852