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SOUND JINGLE WHEN CHANGING CHANNELS IN A VIDEO RECEIVER

IP.com Disclosure Number: IPCOM000008300D
Publication Date: 2002-Jun-04
Document File: 1 page(s) / 20K

Publishing Venue

The IP.com Prior Art Database

Related People

ERIC FANI: INVENTOR

Abstract

IA010031 - When changing channel in a video receiver (for instance a TV set or a set-top box associated with a display), there is traditionally a momentary loss of picture and sound sources that are respectively masked by a picture blanking and a sound mute. In order to let the end-user customize the display set he is using, this invention offers the option to deliver a selected sound jingle during the interval. According to the invention, a synchronization loss triggers a special sound generation. This sound could originate from a DSP or by other means (integrated MP3 player, etc.). This could also be composed and customized by the user, who could then select a preferred tune from a list and link it to an event. Alternatively, this list could be accessed by the system randomly during each event.

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SOUND JINGLE WHEN CHANGING CHANNELS IN A VIDEO RECEIVER

When changing channel in a video receiver (for instance a TV set or a set-top box associated with a display), there is traditionally a momentary loss of picture and sound sources that are respectively masked by a picture blanking and a sound mute. In order to let the end-user customize the display set he is using, this invention offers the option to deliver a selected sound jingle during the interval.

According to the invention, a synchronization loss triggers a special sound generation. This sound could originate from a DSP or by other means (integrated MP3 player, etc.). This could also be composed and customized by the user, who could then select a preferred tune from a list and link it to an event. Alternatively, this list could be accessed by the system randomly during each event.

As previous and next channel sources are un-synchronized, a pop noise circuitry is used at the beginning and at the end of the sound jingle to avoid creation of a “pop” noise.

The invention adds a personal touch for the sets equipped with these features.

Principle of special sound effect circuit :

internally selected sound source (RF, video in)  ->                                         |

                                        |-> selector -> pop noise circuitry -> amplifier

                                        sound jingle source* ->                                        |

(* : from DSP, integrated MP3 player, etc.)

Associated timing diagrams : (CH_A on selected source, followed by CH_B. The symbol “->” indicates selector switching) :

selector switching status                     CH_A    ->     SOUND JINGLE         ->    CH_B...