Patent EP0180460B1 successfully refreshed from Google Patents.
EP0180460B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Decoders for pay television systems
Assignee: Sony Corp
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Filing: 1985-10-29
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Granted: 1990-09-19
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Expires: 2005-10-29
Abstract
No abstract record available.
Inventors
- 👤 Toshihide C/O Patents Division Hayashi
- 👤 Masayoshi C/O Patents Division Kanno
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 23:53
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/0014; H; H04; H04N; H04N7/00; H04N7/16; H04N7/162; H04N7/165
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
164 words
A decoder control circuit for a pay television system, the decoder control circuit comprising: means (22, 24) for descrambling a selected video programme transmitted from a centre (9) at a remote location; means (21) for receiving and decoding control data transmitted from said centre (9), said control data including at least programme fee data and programme status data; an advance money memory (28) for storing money data transmitted from said centre (9); and control means (23) for substracting a programme fee from the money data stored in said advance money memory (28) upon reception of said selected programme; characterized by: said control means (23) including a manual switch (4) for selectively allowing descrambling of said programme when said programme is a pay-per-view programme, as represented by pay-per-view status data in said control data; and said control means (23) includes timer means arranged to measure the time during which said programme is received, and for controlling said subtraction based on the measure of reception time.
Claim 2
Dependent Claim
164 words
A decoder control circuit for a pay television system, the decoder control circuit comprising: means (22, 24) for descrambling a selected video programme transmitted from a centre (9) at a remote location; means (21) for receiving and decoding control data transmitted from said centre (9), said control data including at least programme fee data and programme status data; an advance money memory (28) for storing money data transmitted from said centre (9); and control means (23) for substracting a programme fee from the money data stored in said advance money memory (28) upon reception of said selected programme; characterized by: said control means (23) including a manual switch (4) for selectively allowing descrambling of said programme when said programme is a pay-per-view programme, as represented by pay-per-view status data in said control data; and said control means (23) includes timer means arranged to measure the time during which said programme is received, and for controlling said subtraction based on the measure of reception time.
Claim 3
Dependent Claim
46 words
A decoder control circuit according to claim 1 including means for activating said timer means when said manual switch (4) is turned on, and for deactivating said scrambling when said manual switch (4) is turned off during the period of reception of a time pay-per-view programme.
References Cited (Backward Citations)
No citation records indexed.
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