Title:
【発明の名称】直接放送衛星システムに使用されるプログラム妨害方法及び受信ユニツト
Document Type and Number:
Japanese Patent JP2597546
Kind Code:
B2
Abstract:
Programming tiers (So-S6) are authorized for viewing on an impulse pay-per-view basis. The system operator controls individual receiver units to block the display of programming on selected tiers because the subscriber finds the content of same objectionable or to prevent members of the household from incurring charges without the subscriber's consent. The broadcast signal includes portions addressable to particular receiver units. These portions include a designation of tiers (S1,S4) to be blocked and a command to store same in the unit memory. Upon command to display a program on a selected. tier, the memory is accessed and the stored designation compared with the selected tier. Receivers having stored designations corresponding to the selected tier are unable to display the program.
Inventors:
Donald Earl Horn
Application Number:
JP5162386A
Publication Date:
April 09, 1997
Filing Date:
March 11, 1986
Export Citation:
Assignee:
General Instruments Corporation
International Classes:
H04B7/185; H04N7/167; H04N7/20; (IPC1-7): H04N7/167; H04N7/20
Domestic Patent References:
| JP59210782A | ||||
| JP57500537A |
Attorney, Agent or Firm:
Masao Okabe (2 outside)