Conditional access system of CATV

Details Conditional access system of CATV Conditional access system of CATV

2005-03-22

2005-03-22

Miller, John (Department: 2614)

Interactive video distribution systems

Access control or blocking

C725S027000, C725S031000, C725S131000, C725S139000, C725S151000, C380S212000, C380S241000, C380S242000

Reexamination Certificate

active

06871355

ABSTRACT:
A CATV conditional access system equipped with a digital head end which transmits picture signals of digital programs in a batch mode to terminals provided within a plurality of areas. This digital head end transmits area codes for the respective areas and data about a list table to the terminals employed in the plural areas. In this list table, digital programs of not-yet-provided services for the respective areas are indicated. The area codes are used to recognize such areas belonging to the own terminals. Each of the terminals excludes the picture signal of the digital program of the not-yet-provided service in the related area by identifying the area code with the list table of the not-yet-service digital channel.

REFERENCES:
patent: 5036537 (1991-07-01), Jeffers et al.
patent: 5565909 (1996-10-01), Thibadeau et al.
patent: 5600378 (1997-02-01), Wasilewski
patent: 5659350 (1997-08-01), Hendricks et al.
patent: 5742677 (1998-04-01), Pinder et al.
patent: 5982411 (1999-11-01), Eyer et al.
patent: 5990927 (1999-11-01), Hendricks et al.
patent: 6157719 (2000-12-01), Wasilewski et al.
patent: 6160545 (2000-12-01), Eyer et al.
patent: 6256393 (2001-07-01), Safadi et al.
patent: 20020094084 (2002-07-01), Wasilewski et al.
patent: WO 9907147 (1999-02-01), None

Affiliated with

Also associated with

Rating

Conditional access system of CATV does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Conditional access system of CATV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conditional access system of CATV will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3445416