Expandable cable television subscriber control system

Details Expandable cable television subscriber control system Expandable cable television subscriber control system

1992-02-20

1993-10-19

Swann, Tod R.

Cryptography

Cryptanalysis

380 6, 455 261, H04N 7167

Patent

active

052553183

ABSTRACT:
A subscriber control system designed to be placed outside of the subscriber's home, for controlling access to cable television signals provided by a cable television headend. The system is modular in design containing a single control module and a single RF distribution module both shared by a number of jammer modules. The jammer modules contain a plurality of frequency agile oscillators, the frequencies of which can be changed in time-multiplex fashion. The outputs of the jammer modules can be shared amongst a number of subscribers using space division switching. The system features switching utilizing a plurality of series connected diodes to form a transmission line switch and also utilizes filters having inductive elements which are configured by etching processes

REFERENCES:
patent: 4613826 (1986-09-01), Masuko et al.
patent: 4769838 (1988-09-01), Hasegawa
patent: 4912760 (1990-03-01), West, Jr. et al.
patent: 4991206 (1991-02-01), Blais
patent: 5014309 (1991-05-01), West, Jr.
patent: 5140633 (1992-08-01), Gurusami et al.

Affiliated with

Also associated with

Rating

Expandable cable television subscriber control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable cable television subscriber control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable cable television subscriber control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1358280