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TV set top-box system and method for watching digital broadcasting

A technology of digital broadcasting and set-top boxes, applied in parts of TV systems, parts of color TVs, TVs, etc.

Inactive Publication Date: 2003-11-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of using such a set-top box to watch digital broadcasts, users can only watch digital broadcasts on one TV

Method used

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  • TV set top-box system and method for watching digital broadcasting
  • TV set top-box system and method for watching digital broadcasting
  • TV set top-box system and method for watching digital broadcasting

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Experimental program
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Embodiment Construction

[0017] figure 1 is a typical block diagram depicting a traditional unidirectional RF (radio frequency) transmitter / receiver system. Such as figure 1 As shown, in the case of a unidirectional RF transmitter / receiver system with multiple RF transmitters 2, 4, 6 and 8 and RF receiver 10, received from four sources 12, 14, 16 and 18 The signal is transmitted to the RF receiver 10 through four channels, and the user can watch the television 20 according to a selected one of the four channels. This digital broadcast technology modulates a frequency signal based on the NTSC (National Television Standards Committee) standard into an ISM (Industrial, Scientific, Medical) band frequency signal at 2.4 GHz with a bandwidth of 100 kHz, thus forming four channels. However, each channel is used as a transmission medium with the source of a set of broadcast data streams produced by a DVD (Digital Versatile Disc Player) or VCR (Video Recorder).

[0018] Since this digital broadcasting techn...

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PUM

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Abstract

A set-top box system and method for viewing digital broadcasts. A set-top box system for viewing digital broadcasts includes: a plurality of televisions (TVs); and one set-top box for receiving digital broadcasts including multi-programs, and transmitting single programs selected by program selection requests of TV viewers to the plurality of TVs, the set-top box including: a memory having a program guide database of digital broadcasts; a tuner and demodulator for selecting and demodulating digital broadcasts of a main channel preset in the memory in the received digital broadcasts, and generating the demodulated digital broadcasts as a multi-program transport stream; a controller for controlling each of the sub-channels corresponding to each program selection request of the TV viewers by adopting packetized ID (Identification) information of the multi-program transport stream and the program guide database; a plurality of transport demultiplexers for selecting sub-channels responsive to each program selection request of the TV viewers upon receiving a control signal of the controller, and respectively providing single programs on the selected sub-channels; a plurality of single program decoders for decoding the single programs, respectively; and a transmitter for transmitting the decoded single programs.

Description

technical field [0001] The present invention relates to a communication device, and more particularly, to a set-top box system and a method for viewing digital broadcasts on multiple televisions (TVs) using one set-top box. Background technique [0002] Currently, digital test broadcasting services are being provided so that the demand for high-quality images or high-quality sound is rapidly increasing. In order to watch digital broadcasts on an existing analog TV, a user (ie, a TV viewer) must be equipped with a set-top box on the existing analog TV. However, in the case of watching digital broadcasts using such a set-top box, a user can only watch digital broadcasts on one TV. [0003] A traditional one-way RF (radio frequency) transmitter / receiver (transmitter and receiver) system has multiple RF transmitters and an RF receiver, the signal received from the source is transmitted to the RF receiver through four channels, and the user Ability to watch TV on a selected one...

Claims

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Application Information

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IPC IPC(8): H04N5/38H04N5/40H04N5/44H04N7/10
CPCH04N21/42204H04N5/38H04N5/40H04N5/4401H04N7/106H04N21/26283H04N21/4122H04N21/4305H04N21/4331H04N21/434H04N21/4347H04N21/43637H04N21/4383H04N21/44231H04N21/426H04N21/41
Inventor 皇甫升金洛龟吴世赫
Owner SAMSUNG ELECTRONICS CO LTD
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