초록 ▼

In order to enable the editing of television programs in the home to exclude undesired sound or visual events (such as swearing or scenes of violence), these events are identified by coding inserted in the television signal prior to mass distribution. Preferably this coding is used to identify a ran

In order to enable the editing of television programs in the home to exclude undesired sound or visual events (such as swearing or scenes of violence), these events are identified by coding inserted in the television signal prior to mass distribution. Preferably this coding is used to identify a range of possibly undesirable events, the coding including a grading of the events in terms of their undesirability. In the home, the coding is extruded from the received television signal by a suitable decoder. This coding is compared with a preset code identifying the grade or grades of event to be excluded; on the basis of this comparison the television signal is doctored before output on a television set. To facilitate following of the program being edited, only that portion of the television signal (sound or vision) carrying the undesired event is doctored.

대표청구항 ▼

A controller for editing out undesired sound and visual events from a television signal where this signal includes coding individually identifying, as they occur, certain possibly-undesirable events forming part of a programme represented by the signal, the coding including an indication of the soun

A controller for editing out undesired sound and visual events from a television signal where this signal includes coding individually identifying, as they occur, certain possibly-undesirable events forming part of a programme represented by the signal, the coding including an indication of the sound or visual nature of each said event; said controller comprising: monitor means (40) for monitoring the television signal to identify said coding and output a corresponding coding signal, signal processing means (40,42,43,44) connected to receive said coding signal and arranged to determine therefrom the time of occurrence and nature of said certain possibly-undesirable events, these latter events being events which are to be edited out, and produce inhibit signals in response thereto and inhibit means (14,17) arranged to operate on said television signal in response to said inhibit signals such as to inhibit the intelligible output from said controller of the sound portion of said television signal when the signal processing means (40,42,43,44) indicates the presence of a sound event to be edited out, and to inhibit the intelligible output from the controller of the vision portion of said television signal when the signal processing means (40,42,43,44) indicates the presence of a visual event to be edited out.