Global Patent Index - EP 0806116 A4

EP 0806116 A4 2000-06-28 - SELECTIVE INTERDICTION OF TELEVISION CHANNELS

Title (en)

SELECTIVE INTERDICTION OF TELEVISION CHANNELS

Title (de)

SELEKTIVE SPERRUNG VON FERNSEHKANALEN

Title (fr)

INTERDICTION SELECTIVE DE CANAUX DE TELEVISION

Publication

EP 0806116 A4 (EN)

Application

EP 95944387 A

Priority

  • US 9516827 W
  • US 9508721 W

Abstract (en)

[origin: WO9703523A1] With the present decoder/interdiction device combination (566), the microcontroller (518) receives authorization data from a data receiver (568) via its data output (570) that has been inserted at the headend to identify authorized subscribers (preferably identified with a predefined subscriber or box code in the microcontroller (518). The same microcontroller (518) that controls the common decrypting of a commonly encrypted input source (572), loads the channel interdiction table (516) according to the authorization data, e.g., according to tiers. The data in the interdiction table (516) is then used to control the operation of the frequency synthesizer/VCO (516) and the mute switch (522) using the control interface (528) and mute control signal (534) according to the previously described algorithm. This improved combination now permits the simultaneous reception of multiple unencrypted signals (suitable for picture-in-picture use) while still permitting the provider to withhold access to selected channels.

IPC 1-7 (main, further and additional classification)

H04N 7/167; H04N 7/171

IPC 8 full level (invention and additional information)

H04N 7/16 (2011.01); H04N 7/167 (2011.01); H04N 7/171 (2011.01)

CPC (invention and additional information)

H04N 7/1713 (2013.01); H04N 7/165 (2013.01); H04N 7/1675 (2013.01); H04N 7/171 (2013.01)

Citation (search report)

  • No further relevant documents disclosed
  • See also references of WO 9703523A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9703523 A1 19970130; AP 896 A 20001117; AU 4645096 A 19970210; BR 9510615 A 19990427; EP 0806116 A1 19971112; EP 0806116 A4 20000628; OA 10754 A 20021211

INPADOC legal status


2001-03-07 [18W] WITHDRAWN

- Date of withdrawal: 20010110

2000-06-28 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000516

2000-06-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

1997-11-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19970613

1997-11-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE