INTELLIGENT DIGITAL AUDIOVISUAL PLAY BACK SYSTEM
First Claim
1. Payment-based audiovisual reproduction system, developed around a microprocessor device linked to a payment device, on the one hand comprising fundamentally mass storage means, for among others storage, in compressed digital form, of the audio and visual information to be used, and on the other hand linked, via interfaces, to digital display means and digital audio reproduction means allowing formation of a multimedia environment, characterized in that the ensemble is managed by a multitask operating system including a library of tools and services integrated in the storage means, the kernel of the operating system linking to each of the peripheral means a task and assigning the highest priority to the display task and a second level priority to the audio task, at least one temporary storage buffer (66, 67 or 56, 57) of the data to be decompressed being linked to respective display (6) and audio (5) reproduction means to allow processing of data transferred to one of the means during processing of a transfer to another means by the operating system, and a scheduling module of the operating system linking a status buffer positioned at a value representative of the activity of a task while the temporary storage buffers contain the data.
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Accused Products
Abstract
Payment-based audiovisual playback system characterized by comprising a microprocessor unit, primarily including storage means for storing inter alia in digital form the visual and sound information to be used, and associated, through a number of interfaces, with display means for sound playback which provide a multimedia environment. The unit is controlled by a multitask operating system including a library of integrated tools and services in the storage means. The system is also associated, through an interface, with a telecommunications modem is connectable to an audiovisual information distribution network by a telecommunications modem and telecommunications links, the telecommunications functions also being managed by the multitask operating system.
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Citations
10 Claims
- 1. Payment-based audiovisual reproduction system, developed around a microprocessor device linked to a payment device, on the one hand comprising fundamentally mass storage means, for among others storage, in compressed digital form, of the audio and visual information to be used, and on the other hand linked, via interfaces, to digital display means and digital audio reproduction means allowing formation of a multimedia environment, characterized in that the ensemble is managed by a multitask operating system including a library of tools and services integrated in the storage means, the kernel of the operating system linking to each of the peripheral means a task and assigning the highest priority to the display task and a second level priority to the audio task, at least one temporary storage buffer (66, 67 or 56, 57) of the data to be decompressed being linked to respective display (6) and audio (5) reproduction means to allow processing of data transferred to one of the means during processing of a transfer to another means by the operating system, and a scheduling module of the operating system linking a status buffer positioned at a value representative of the activity of a task while the temporary storage buffers contain the data.
Specification