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Circuit arrangement for processing band of digital television channels

A technology of TV channels and circuits, applied in the parts of color TVs, parts of TV systems, TVs, etc.

Inactive Publication Date: 2006-03-29
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hitherto known digital set-top boxes only provide the television receiver with one television channel selected by the user

Method used

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  • Circuit arrangement for processing band of digital television channels
  • Circuit arrangement for processing band of digital television channels
  • Circuit arrangement for processing band of digital television channels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 The two-story room H shown in includes a satellite dish A on the roof for receiving one band of television channels via satellite. A digital satellite receiver SAR is arranged under the roof next to the satellite antenna A and is connected to the low noise converter LNB of the satellite antenna A via the coaxial cable HF. The power for the LNB is provided by the satellite receiver SAR via the cable HF.

[0019] Several rooms of the room are equipped with television receivers TV1, TV2 and TV3, and one of the rooms also has a personal computer PC. In this particular arrangement the television receivers TV1 and TV2 are directly connected in parallel to the satellite receiver SAR via IEEE1394 cables FF1, FF2. The personal computer PC is connected to the television receiver TV1 via an IEEE1394 cable FF3, and the television receiver TV3 is connected to the personal computer PC via another IEEE1394 cable FF4.

[0020] Therefore, the television receivers TV1 to TV3 ...

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PUM

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Abstract

The circuit arrangement comprises an input section (IS, DC) for receiving a band of digital television channels, a signal processing section (uP, LLC, TLC), a power supply (PS), and an output section (PHY) for supplying one or several television receivers (TV1-TV3, PC) with one of said television channels. The output section (PHY) comprises an IEEE 1394 port for a connection to television receivers (TV1-TV3, PC) for providing data transmission in both directions, and the circuit arrangement comprises a power down mode in which at least parts of the input section (IS, DC) and the signal processing section (uP, LLC, TLC) are switched off, when none of said television receivers is active. In this power-down mode the circuit arrangement is in a standby mode in which advantageously only the power supply (PS) and the physical layer (PHY) of the output section are active. The circuit arrangement (SAR) is in particular a digital satellite receiver or a settop box.

Description

technical field [0001] The invention relates to a circuit arrangement comprising: an input section for receiving a band of digital television channels; a signal processing section; a power supply; and an output section for supplying a selected television program to a television receiver. Such circuit arrangements are known, for example, as digital satellite receivers or set-top boxes in consumer appliances that receive multiple television channels, so that the user can select a certain program to watch with the television. A video recorder, video camera or personal computer PC can also be understood as a television receiver for receiving television channels in this sense. Background technique [0002] A conventional home satellite receiving station known in the art uses: a satellite dish; a low noise converter LNB, which converts the received satellite channel bands to intermediate frequencies; and a satellite receiver, which is controlled by the user to select a desired tel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/63H04L12/28H04N5/44
CPCH04N21/4436H04N21/6143H04N5/4401H04N21/43632H04N5/63H04N21/426
Inventor 迈克尔·德雷克斯勒克劳斯·盖德克
Owner THOMSON LICENSING SA